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An J, Zhang Y, Zhang X, He M, Zhou J, Zhou J, Liu Y, Chen X, Hu Y, Song X, Chen J, Wu T, Kang J, Xie Z. Structure and Properties of Epoxy Resin/Graphene Oxide Composites Prepared from Silicon Dioxide-Modified Graphene Oxide. ACS OMEGA 2024; 9:17577-17591. [PMID: 38645374 PMCID: PMC11024974 DOI: 10.1021/acsomega.4c00707] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/21/2024] [Revised: 03/10/2024] [Accepted: 03/15/2024] [Indexed: 04/23/2024]
Abstract
In this study, graphene oxide (GO) was modified via electrostatic interactions and chemical grafting by silica (SiO2), and two SiO2@GO hybrids (GO-A and GO-B, respectively) with different structures were obtained and carefully characterized. Results confirmed the successful grafting of SiO2 onto the GO surface using both strategies. The distribution of SiO2 particles on the surface of GO-A was denser and more agglomerated, while it was more uniform on the surface of GO-B. Then, epoxy resin (EP)/GO composites were prepared. The curing mechanism of EP/GO composites was studied by differential scanning calorimetry and in situ infrared spectra spectroscopy. Results of tensile tests, hardness tests, dynamic mechanical analysis, and dielectric measurement revealed that EP/GO-B exhibited the highest tensile properties, with a tensile strength of 79 MPa, a 43% increase compared to raw EP. Furthermore, the addition of fillers improved the hardness of EP, and EP/GO-B showed the highest energy storage modulus of 1900 MPa. The inclusion of SiO2@GO hybrid fillers enhanced the dielectric constant, volume resistivity, and breakdown voltage of EP/GO composites. Among these, EP/GO-B displayed the lowest dielectric loss, relatively good insulation, and relatively high volume resistivity and breakdown voltage. A related mechanism was proposed.
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Affiliation(s)
- Jin An
- State Key Laboratory of Polymer Materials Engineering, Polymer Research Institute of Sichuan University, Chengdu 610065, China
| | - Yue Zhang
- Dongfang Electric Machinery Co., Ltd., Deyang 618000, China
| | - Xiaojun Zhang
- Dongfang Electric Machinery Co., Ltd., Deyang 618000, China
| | - Mingpeng He
- Dongfang Electric Machinery Co., Ltd., Deyang 618000, China
| | - Jiang Zhou
- Dongfang Electric Machinery Co., Ltd., Deyang 618000, China
| | - Jin Zhou
- Dongfang Electric Machinery Co., Ltd., Deyang 618000, China
| | - Yan Liu
- Dongfang Electric Machinery Co., Ltd., Deyang 618000, China
| | - Xuebing Chen
- State Key Laboratory of Polymer Materials Engineering, Polymer Research Institute of Sichuan University, Chengdu 610065, China
| | - Yiwen Hu
- Xi'an Modern Chemistry Research Institute, Xi'an 710065, China
| | - Xiuduo Song
- Xi'an Modern Chemistry Research Institute, Xi'an 710065, China
| | - Jinyao Chen
- State Key Laboratory of Polymer Materials Engineering, Polymer Research Institute of Sichuan University, Chengdu 610065, China
| | - Tong Wu
- State Key Laboratory of Polymer Materials Engineering, Polymer Research Institute of Sichuan University, Chengdu 610065, China
| | - Jian Kang
- State Key Laboratory of Polymer Materials Engineering, Polymer Research Institute of Sichuan University, Chengdu 610065, China
| | - Zhihui Xie
- Dongfang Electric Machinery Co., Ltd., Deyang 618000, China
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2
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He H, Li L, Liu H, Luo B, Li Z, Tian W. The Effects of a Crosslinking Agent on the Microrheological Properties and Cellular Structure of Silicone Rubber Foam Prepared via a Green Process. MATERIALS (BASEL, SWITZERLAND) 2024; 17:707. [PMID: 38591606 PMCID: PMC10856475 DOI: 10.3390/ma17030707] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/28/2023] [Revised: 01/25/2024] [Accepted: 01/31/2024] [Indexed: 04/10/2024]
Abstract
Chemical foaming technology is widely used in the preparation of silicone rubber foam and is attributable to its one-step molding capability and eco-friendly production processes. The microrheological properties of silicone rubber play a pivotal role during the foaming process. In this study, Rheolaser Lab (Formulaction, Toulouse, France) was used to conduct in situ examinations for the influence of a crosslinking agent on the microrheological properties of silicone rubber foam for the first time. This study monitors the entire reaction process of silicone rubber foam from liquid to solid, as well as the matching of crosslinking and foaming reactions. Various parameters, including solid-liquid balance, elasticity index, and macroscopic viscosity index, are measured to analyze the microrheological properties of silicone rubber foam. The results show that the silicone rubber foam exhibits good microrheological properties, thereby demonstrating excellent performance at a crosslinking agent content of 2%. Through adjusting the experimental conditions, a sustainable and efficient approach was proposed for better cellular structure control in the industrial preparation of silicone rubber foam.
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Affiliation(s)
- Hongyu He
- School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing 100083, China; (H.H.); (L.L.)
| | - Lulu Li
- School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing 100083, China; (H.H.); (L.L.)
| | - Hong Liu
- Guangdong Homeen Organic Silicon Material Co., Ltd., Zhaoqing 526072, China; (H.L.); (B.L.)
| | - Bin Luo
- Guangdong Homeen Organic Silicon Material Co., Ltd., Zhaoqing 526072, China; (H.L.); (B.L.)
| | - Zhipeng Li
- School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing 100083, China; (H.H.); (L.L.)
| | - Wenhuai Tian
- School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing 100083, China; (H.H.); (L.L.)
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3
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Zhang Y, Liu W, Zhou Q, Meng Y, Zhong Y, Xu J, Xiao C, Zhang G, Zhang Y. Effects of Vinyl Functionalized Silica Particles on Thermal and Mechanical Properties of Liquid Silicone Rubber Nanocomposites. Polymers (Basel) 2023; 15:polym15051224. [PMID: 36904465 PMCID: PMC10007495 DOI: 10.3390/polym15051224] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2023] [Revised: 02/26/2023] [Accepted: 02/27/2023] [Indexed: 03/04/2023] Open
Abstract
It is very important to develop a new method of preparing high-performance liquid silicone rubber-reinforcing filler. Herein, the hydrophilic surface of silica (SiO2) particles was modified by a vinyl silazane coupling agent to prepare a new type of hydrophobic reinforcing filler. The structures and properties of modified SiO2 particles were confirmed using Fourier-transform infrared spectroscopy (FT-IR), X-ray photoelectron spectrometer (XPS), specific surface area and particle size distribution and thermogravimetric analysis (TGA), the results of which demonstrated that the aggregation of hydrophobic particles is greatly reduced. Additionally, the effects of the vinyl-modified SiO2 particle (f-SiO2) content on the dispersibility, rheology, and thermal and mechanical properties of liquid silicone rubber (SR) composites were studied for application toward high-performance SR matrix. The results showed that the f-SiO2/SR composites possessed low viscosity and higher thermal stability, conductivity, and mechanical strength than of SiO2/SR composites. We believe that this study will provide ideas for the preparation of high-performance liquid silicone rubber with low viscosity.
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Affiliation(s)
- Yulong Zhang
- China North Industry Advanced Technology Generalization Institute, Beijing 100089, China
| | - Wei Liu
- China North Industry Advanced Technology Generalization Institute, Beijing 100089, China
| | - Qiang Zhou
- Ordnance Science and Research Academy of China, Beijing 100089, China
- Correspondence: (Q.Z.); (Y.Z.)
| | - Yiting Meng
- National Special Superfine Powder Engineering Research Center of China, Nanjing University of Science and Technology, Nanjing 210014, China
| | - Ye Zhong
- China North Industry Advanced Technology Generalization Institute, Beijing 100089, China
| | - Jing Xu
- China North Industry Advanced Technology Generalization Institute, Beijing 100089, China
| | - Chuan Xiao
- Ordnance Science and Research Academy of China, Beijing 100089, China
| | - Guangpu Zhang
- College of Materials Science and Engineering, Nanjing Tech University, Nanjing 211816, China
| | - Yanan Zhang
- National Special Superfine Powder Engineering Research Center of China, Nanjing University of Science and Technology, Nanjing 210014, China
- Correspondence: (Q.Z.); (Y.Z.)
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4
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Legrand S, Kabir R, Kärkkäinen A. New Phenanthrenyl‐Substituted Hybrid Organic‐Inorganic Polysiloxanes for Optoelectronic Applications. ChemistrySelect 2023. [DOI: 10.1002/slct.202204271] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Affiliation(s)
| | - Rakib Kabir
- Optitune Oy Tutkijankuja 5 90590 Oulu Finland
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5
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Kumar V, Koorata PK, Shinde U, Padavu P, George SC. Review on physical and chemical properties of low and high-temperature polymer electrolyte membrane fuel cell (PEFC) sealants. Polym Degrad Stab 2022. [DOI: 10.1016/j.polymdegradstab.2022.110151] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
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6
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Huang X, Song G, Shi J, Ren J, Guo R, Li C, Chen G, Li Q, Zhou Z. Thermal stability, mechanical, and optical properties of novel RTV silicone rubbers using octa(dimethylethoxysiloxy)-POSS as a cross-linker. E-POLYMERS 2022. [DOI: 10.1515/epoly-2022-0022] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
Octa(dimethylethoxysiloxy) POSS (ODES) was synthesized successfully and used as the novel curing agent to prepare RTV silicone rubber (SROD) with outstanding mechanical properties and thermal stability. Compared with the silicone rubber cross-linked by tetraethoxysilane (SRTE), the novel RTV silicone rubber using octa(dimethylethoxysiloxy) POSS as a cross-linker had better mechanical, thermal, and optical properties. The highest tensile strength of SROD reached 1.26 MPa, which is three times that of SRTE. Besides, the decomposition temperature of 10% weight loss reached 507.7°C, exceeding that of SRTE by nearly 150°C. In addition, it was remarkable that due to the good compatibility of ODES with the silicone rubber matrix, the series of SROD showed good transmittance, greater than 87%. The thermal decomposition process of SROD was investigated by TGA coupled with real-time FTIR, and the results revealed the rigid structure and large steric hindrance of ODES that efficiently blocked the “backbiting” of the polysiloxy chains and delayed the end-induced ring decomposition, and consequently, improved the thermal stability of SROD significantly.
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Affiliation(s)
- Xing Huang
- Key Laboratory of Carbon Fiber and Functional Polymers, Ministry of Education, Beijing University of Chemical Technology , Beijing 100029 , China
- State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology , Beijing 100029 , China
- College of Material Science and Engineering, Beijing University of Chemical Technology , Beijing 100029 , China
| | - Guomin Song
- Key Laboratory of Carbon Fiber and Functional Polymers, Ministry of Education, Beijing University of Chemical Technology , Beijing 100029 , China
- State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology , Beijing 100029 , China
- College of Material Science and Engineering, Beijing University of Chemical Technology , Beijing 100029 , China
| | - Jianjun Shi
- Aerospace Research Institute of Materials and Processing Technology, Science and Technology on Advanced Functional Composites Technology , Beijing 100029 , China
| | - Jiafei Ren
- Key Laboratory of Carbon Fiber and Functional Polymers, Ministry of Education, Beijing University of Chemical Technology , Beijing 100029 , China
- College of Material Science and Engineering, Beijing University of Chemical Technology , Beijing 100029 , China
| | - Ruilu Guo
- Key Laboratory of Carbon Fiber and Functional Polymers, Ministry of Education, Beijing University of Chemical Technology , Beijing 100029 , China
- College of Material Science and Engineering, Beijing University of Chemical Technology , Beijing 100029 , China
| | - Chunyuan Li
- Key Laboratory of Carbon Fiber and Functional Polymers, Ministry of Education, Beijing University of Chemical Technology , Beijing 100029 , China
- State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology , Beijing 100029 , China
- College of Material Science and Engineering, Beijing University of Chemical Technology , Beijing 100029 , China
| | - Guangxin Chen
- Key Laboratory of Carbon Fiber and Functional Polymers, Ministry of Education, Beijing University of Chemical Technology , Beijing 100029 , China
- College of Material Science and Engineering, Beijing University of Chemical Technology , Beijing 100029 , China
| | - Qifang Li
- State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology , Beijing 100029 , China
- College of Material Science and Engineering, Beijing University of Chemical Technology , Beijing 100029 , China
| | - Zheng Zhou
- Key Laboratory of Carbon Fiber and Functional Polymers, Ministry of Education, Beijing University of Chemical Technology , Beijing 100029 , China
- College of Material Science and Engineering, Beijing University of Chemical Technology , Beijing 100029 , China
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7
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Abd Halim ZA, Ahmad N, Yajid MAM, Hamdan H. Thermal insulation performance of silicone rubber / silica aerogel composite. MATERIALS CHEMISTRY AND PHYSICS 2022; 276:125359. [DOI: 10.1016/j.matchemphys.2021.125359] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/02/2023]
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8
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Wang Y, Cai Y, Zhang H, Zhou J, Zhou S, Chen Y, Liang M, Zou H. Mechanical and thermal degradation behavior of high-performance PDMS elastomer based on epoxy/silicone hybrid network. POLYMER 2021. [DOI: 10.1016/j.polymer.2021.124299] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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9
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Zhang YL, Zang CG, Shi LP, Jiao QJ, Pan HW, She-li YF. Preparation of boron-containg hybridized silicon rubber by in-situ polymerization of vinylphenyl-functionalized polyborosiloxane and liquid silicone rubber. POLYMER 2021. [DOI: 10.1016/j.polymer.2021.123541] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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10
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Liu Y, Hu T, Zhao J, Lu L, Muhammad Y, Lan P, He R, Zou Y, Tong Z. Synthesis and application of PDMS/OP-POSS membrane for the pervaporative recovery of n-butyl acetate and ethyl acetate from aqueous media. J Memb Sci 2019. [DOI: 10.1016/j.memsci.2019.117324] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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11
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Liu Y, Zhang K, Sun J, Yuan J, Yang Z, Gao C, Wu Y. A Type of Hydrogen Bond Cross-Linked Silicone Rubber with the Thermal-Induced Self-Healing Properties Based on the Nonisocyanate Reaction. Ind Eng Chem Res 2019. [DOI: 10.1021/acs.iecr.9b03953] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Yuetao Liu
- State Key Laboratory Base for Eco-Chemical Engineering in College of Chemical Engineering, Qingdao University of Science and Technology, Qingdao 266042, China
| | - Kaiming Zhang
- State Key Laboratory Base for Eco-Chemical Engineering in College of Chemical Engineering, Qingdao University of Science and Technology, Qingdao 266042, China
| | - Jiawen Sun
- State Key Laboratory Base for Eco-Chemical Engineering in College of Chemical Engineering, Qingdao University of Science and Technology, Qingdao 266042, China
| | - Junguo Yuan
- State Key Laboratory Base for Eco-Chemical Engineering in College of Chemical Engineering, Qingdao University of Science and Technology, Qingdao 266042, China
| | - Zhengyi Yang
- State Key Laboratory Base for Eco-Chemical Engineering in College of Chemical Engineering, Qingdao University of Science and Technology, Qingdao 266042, China
| | - Chuanhui Gao
- State Key Laboratory Base for Eco-Chemical Engineering in College of Chemical Engineering, Qingdao University of Science and Technology, Qingdao 266042, China
| | - Yumin Wu
- State Key Laboratory Base for Eco-Chemical Engineering in College of Chemical Engineering, Qingdao University of Science and Technology, Qingdao 266042, China
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12
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Wu L, Zhang Y. Enhanced thermal oxidative stability of silicone rubber by using cerium-ferric complex oxide as thermal oxidative stabilizer. E-POLYMERS 2019. [DOI: 10.1515/epoly-2019-0026] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
AbstractCerium (Ce)-ferric (Fe) complex oxides were prepared via a citric acid sol-gel process, and used as thermal oxidative stabilizers for silicone rubber (SR). The oxides were characterized by X-ray diffraction and Raman spectroscopy. The Ce/Fe molar ratio in Ce-Fe complex oxides significantly influenced the thermal oxidative stability of SR. After aging at 300°C for 24 h, SR filled with 4 phr Ce-Fe complex oxide with a Ce/(Ce+Fe) molar ratio of 0.8 (CeFeO-0.8) exhibited excellent thermal oxidative stability, retaining 56.8% and 54.3% of its original tensile strength and elongation at break, respectively. Some Ce3+ and Fe2+ ions were detected in aged SR composites. Ce3+/Ce4+ and Fe2+/Fe3+ molar ratios in SR/CeFeO-0.8 were less than that in SR/CeO2 and SR/Fe2O3 composites, respectively, as detected by X-ray photoelectron spectroscopy. It implies rapid re-oxidations of Fe2+ and Ce3+ occurred in SR/CeFeO-0.8, enhancing the capacity of CeFeO-0.8 to capture radicals during thermal aging.
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Affiliation(s)
- Lei Wu
- School of Chemistry and Chemical Engineering, State Key Laboratory for Metal Matrix Composite Materials, Shanghai Jiao Tong University, Shanghai 200240, PR China
| | - Yong Zhang
- School of Chemistry and Chemical Engineering, State Key Laboratory for Metal Matrix Composite Materials, Shanghai Jiao Tong University, Shanghai 200240, PR China
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Imoto H, Wada S, Yumura T, Naka K. Transition‐Metal‐Catalyzed Direct Arylation of Caged Silsesquioxanes: Substrate Scope and Mechanistic Study. Eur J Inorg Chem 2019. [DOI: 10.1002/ejic.201900126] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Hiroaki Imoto
- Faculty of Molecular Chemistry and Engineering Graduate School of Science and Technology Kyoto Institute of Technology Goshokaido‐cho, Matsugasaki, Sakyo‐ku Kyoto 606‐8585 Japan
| | - Satoshi Wada
- Faculty of Molecular Chemistry and Engineering Graduate School of Science and Technology Kyoto Institute of Technology Goshokaido‐cho, Matsugasaki, Sakyo‐ku Kyoto 606‐8585 Japan
| | - Takashi Yumura
- Faculty of Material Science and Technology Graduate School of Science and Technology Kyoto Institute of Technology Goshokaido‐cho, Matsugasaki, Sakyo‐ku Kyoto 606‐8585 Japan
| | - Kensuke Naka
- Faculty of Molecular Chemistry and Engineering Graduate School of Science and Technology Kyoto Institute of Technology Goshokaido‐cho, Matsugasaki, Sakyo‐ku Kyoto 606‐8585 Japan
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14
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Wu T, Qiu J, Lai X, Li H, Zeng X. Effect and mechanism of hepta-phenyl vinyl polyhedral oligomeric silsesquioxane on the flame retardancy of silicone rubber. Polym Degrad Stab 2019. [DOI: 10.1016/j.polymdegradstab.2018.11.026] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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15
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Ogliani E, Yu L, Mazurek P, Skov AL. Designing reliable silicone elastomers for high-temperature applications. Polym Degrad Stab 2018. [DOI: 10.1016/j.polymdegradstab.2018.10.012] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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16
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Niemczyk A, Dziubek K, Sacher-Majewska B, Czaja K, Czech-Polak J, Oliwa R, Lenża J, Szołyga M. Thermal Stability and Flame Retardancy of Polypropylene Composites Containing Siloxane-Silsesquioxane Resins. Polymers (Basel) 2018; 10:E1019. [PMID: 30960943 PMCID: PMC6403547 DOI: 10.3390/polym10091019] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2018] [Revised: 09/09/2018] [Accepted: 09/10/2018] [Indexed: 11/16/2022] Open
Abstract
A novel group of silsesquioxane derivatives, which are siloxane-silsesquioxane resins (S4SQ), was for the first time examined as possible flame retardants in polypropylene (PP) materials. Thermal stability of the PP/S4SQ composites compared to the S4SQ resins and neat PP was estimated using thermogravimetric (TG) analysis under nitrogen and in air atmosphere. The effects of the non-functionalized and n-alkyl-functionalized siloxane-silsesquioxane resins on thermostability and flame retardancy of PP materials were also evaluated by thermogravimetry-Fourier transform infrared spectrometry (TG-FTIR) and by cone calorimeter tests. The results revealed that the functionalized S4SQ resins may form a continuous ceramic layer on the material surface during its combustion, which improves both thermal stability and flame retardancy of the PP materials. This beneficial effect was observed especially when small amounts of the S4SQ fillers were applied. The performed analyses allowed us to propose a possible mechanism for the degradation of the siloxane-silsesquioxane resins, as well as to explain their possible role during the combustion of the PP/S4SQ composites.
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Affiliation(s)
- Arkadiusz Niemczyk
- Faculty of Chemistry, University of Opole, Oleska 48, 45-052 Opole, Poland.
| | - Katarzyna Dziubek
- Faculty of Chemistry, University of Opole, Oleska 48, 45-052 Opole, Poland.
| | | | - Krystyna Czaja
- Faculty of Chemistry, University of Opole, Oleska 48, 45-052 Opole, Poland.
| | - Justyna Czech-Polak
- Faculty of Chemistry, Rzeszow University of Technology, Al. Powstańców Warszawy 6, 35-959 Rzeszów, Poland.
| | - Rafał Oliwa
- Faculty of Chemistry, Rzeszow University of Technology, Al. Powstańców Warszawy 6, 35-959 Rzeszów, Poland.
| | - Joanna Lenża
- Central Mining Institute, Plac Gwarków 1, 40⁻166 Katowice, Poland.
| | - Mariusz Szołyga
- Centre for Advanced Technologies, Adam Mickiewicz University in Poznań, Umultowska 89C, 61-614 Poznań, Poland.
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Sun J, Kong J, He C. Liquid polyoctahedral silsesquioxanes as an effective and facile reinforcement for liquid silicone rubber. J Appl Polym Sci 2018. [DOI: 10.1002/app.46996] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Jiaotong Sun
- Department of Materials Science & Engineering; National University of Singapore, 9 Engineering Drive 1; 117575 Singapore
| | - Junhua Kong
- Agency for Science, Technology and Research (A*STAR); Institute of Materials Research and Engineering, 2 Fusionopolis Way; 138634 Singapore
| | - Chaobin He
- Department of Materials Science & Engineering; National University of Singapore, 9 Engineering Drive 1; 117575 Singapore
- Agency for Science, Technology and Research (A*STAR); Institute of Materials Research and Engineering, 2 Fusionopolis Way; 138634 Singapore
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18
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Berthier D, Deffarges MP, Berton N, Venin M, Lacroix F, Schmaltz B, Tendron Y, Pestel E, Tran-Van F, Méo S. POSS Nanofiller-Induced Enhancement of the Thermomechanical Properties in a Fluoroelastomer Terpolymer. MATERIALS 2018; 11:ma11081358. [PMID: 30082594 PMCID: PMC6119982 DOI: 10.3390/ma11081358] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/03/2018] [Revised: 08/02/2018] [Accepted: 08/03/2018] [Indexed: 11/16/2022]
Abstract
The present study reports on the use of three types of polyhedral oligomeric silsesquioxanes (POSS) nanoparticles with various organic substituents as fillers in a fluoroelastomer (FKM). A series of/POSS elastomer composite thin films is prepared. Microstructural SEM/TEM (scanning electron microscopy/transmission electron microscopy) imaging reveals a dispersion state allowing the presence of micron-sized domains. The influence of POSS content is studied in order to optimize thermal stability and mechanical properties of the composite thin films. Both POSS-A (with an acryloyl functional group and seven isobutyl substituents) and POSS-P (with eight phenyl substituents) lead to higher thermal stability and modulus of the composites, with respect to the unfilled FKM terpolymer matrix. covalent grafting of POSS-A onto the FKM network is found to play a critical role. Enhanced storage modulus in the rubbery plateau region (+210% at 200 °C for 20 phr) suggests that POSS-A is particularly suitable for high temperature applications.
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Affiliation(s)
- Daphné Berthier
- Laboratoire de Mécanique Gabriel Lamé, Université de Tours, Université d'Orléans, INSA Centre Val de Loire, Polytech Tours, 7 avenue Marcel Dassault BP40, 37004 Tours, France.
- Laboratoire PCM2E (Physico-Chimie des Matériaux et des Electrolytes pour l'Energie), Université de Tours, Parc de Grandmont, 37200 Tours, France.
- Zodiac Aerosafety Systems, 20 avenue Georges Pompidou, 37600 Loches, France.
| | - Marie-Pierre Deffarges
- Laboratoire de Mécanique Gabriel Lamé, Université de Tours, Université d'Orléans, INSA Centre Val de Loire, Polytech Tours, 7 avenue Marcel Dassault BP40, 37004 Tours, France.
| | - Nicolas Berton
- Laboratoire PCM2E (Physico-Chimie des Matériaux et des Electrolytes pour l'Energie), Université de Tours, Parc de Grandmont, 37200 Tours, France.
| | - Mathieu Venin
- Laboratoire de Mécanique Gabriel Lamé, Université de Tours, Université d'Orléans, INSA Centre Val de Loire, Polytech Tours, 7 avenue Marcel Dassault BP40, 37004 Tours, France.
| | - Florian Lacroix
- Laboratoire de Mécanique Gabriel Lamé, Université de Tours, Université d'Orléans, INSA Centre Val de Loire, Polytech Tours, 7 avenue Marcel Dassault BP40, 37004 Tours, France.
| | - Bruno Schmaltz
- Laboratoire PCM2E (Physico-Chimie des Matériaux et des Electrolytes pour l'Energie), Université de Tours, Parc de Grandmont, 37200 Tours, France.
| | - Yohan Tendron
- Zodiac Aerosafety Systems, 20 avenue Georges Pompidou, 37600 Loches, France.
| | - Eric Pestel
- Zodiac Aerosafety Systems, 20 avenue Georges Pompidou, 37600 Loches, France.
| | - François Tran-Van
- Laboratoire PCM2E (Physico-Chimie des Matériaux et des Electrolytes pour l'Energie), Université de Tours, Parc de Grandmont, 37200 Tours, France.
| | - Stéphane Méo
- Laboratoire de Mécanique Gabriel Lamé, Université de Tours, Université d'Orléans, INSA Centre Val de Loire, Polytech Tours, 7 avenue Marcel Dassault BP40, 37004 Tours, France.
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Effect of POSS Particles and Synergism Action of POSS and Poly-(Melamine Phosphate) on the Thermal Properties and Flame Retardance of Silicone Rubber Composites. MATERIALS 2018; 11:ma11081298. [PMID: 30060477 PMCID: PMC6117728 DOI: 10.3390/ma11081298] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/25/2018] [Revised: 07/23/2018] [Accepted: 07/24/2018] [Indexed: 11/16/2022]
Abstract
This article presents flame retardant compounds for silicone rubber (SR) in the form of polyhedral oligomeric silsequioxanes (POSS), containing both isobutyl groups and amino-propyl (AM-POSS) or chloro-propyl group (HA-POSS) or vinyl groups (OL-POSS). Silsequioxanes were incorporated into the silicone rubber matrix in a quantity of 3 and 6 parts by wt by the method of reactive stirring with the use of a laboratory mixing mill. Based on the analyses performed by TG (Thermogravimetry) FTIR (Fourier Transform Infrared Spectroscopy), conical calorimeter, and SEM-EDX (Scanning Electron Microscopy and Energy Dispersive X-ray Spectroscopy) methods, the thermal degradation mechanism of non-cross-linked and cross-linked silicone rubber has been elucidated. The effects of POSS, and POSS in a synergic system with melamine polyphosphate (MPP), on the thermal properties and flammability of silicone rubber composites were presented. Based on the test results obtained, a mechanism of flame retardant action POSS and POSS-MPP has been proposed. It has been shown that POSS, especially with MPP, considerably increases the thermal stability and decreases the flammability of the SR rubber composites under investigation.
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20
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Shahidi K, Rodrigue D. Gas transport and mechanical properties of PDMS-TFS/LDPE nanocomposite membranes. JOURNAL OF POLYMER RESEARCH 2018. [DOI: 10.1007/s10965-018-1576-5] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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21
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Qiu J, Lai X, Li H, Zeng X, Zhang Z. Synthesis of Zirconium-Containing Polyhedral Oligometallasilsesquioxane as an Efficient Thermal Stabilizer for Silicone Rubber. Polymers (Basel) 2018; 10:E520. [PMID: 30966554 PMCID: PMC6415425 DOI: 10.3390/polym10050520] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2018] [Revised: 05/08/2018] [Accepted: 05/10/2018] [Indexed: 11/23/2022] Open
Abstract
Free radicals play a negative role during the thermal degradation of silicone rubber (SR). Quenching free radicals is proposed to be an efficient way to improve the thermal-oxidative stability of SR. In this work, a novel zirconium-containing polyhedral oligometallasilsesquioxane (Zr-POSS) with free-radical quenching capability was synthesized and characterized. The incorporation of Zr-POSS effectively improved the thermal-oxidative stability of SR. The T₅ (temperature at 5% weight loss) of SR/Zr-POSS significantly increased by 31.7 °C when compared to the unmodified SR. Notably, after aging 12 h at 280 °C, SR/Zr-POSS was still retaining about 65%, 60%, 75%, and 100% of the tensile strength, tear strength, elongation at break, and hardness before aging, respectively, while the mechanical properties of the unmodified SR were significantly decreased. The possible mechanism of Zr-POSS for improving the thermal-oxidative stability of SR was intensively studied and it was revealed that the POSS structure could act as a limiting point to suppress the random scission reaction of backbone. Furthermore, Zr could quench the free radicals by its empty orbital and transformation of valence states. Therefore, it effectively suppressed the thermal-oxidative degradation and crosslinking reaction of the side chains.
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Affiliation(s)
- Jiedong Qiu
- College of Materials Science and Engineering, Key Lab of Guangdong Province for High Property and Functional Polymer Materials, South China University of Technology, Guangzhou 510641, China.
| | - Xuejun Lai
- College of Materials Science and Engineering, Key Lab of Guangdong Province for High Property and Functional Polymer Materials, South China University of Technology, Guangzhou 510641, China.
| | - Hongqiang Li
- College of Materials Science and Engineering, Key Lab of Guangdong Province for High Property and Functional Polymer Materials, South China University of Technology, Guangzhou 510641, China.
| | - Xingrong Zeng
- College of Materials Science and Engineering, Key Lab of Guangdong Province for High Property and Functional Polymer Materials, South China University of Technology, Guangzhou 510641, China.
| | - Zhuopeng Zhang
- College of Materials Science and Engineering, Key Lab of Guangdong Province for High Property and Functional Polymer Materials, South China University of Technology, Guangzhou 510641, China.
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22
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Li Q, Huang X, Liu H, Shang S, Song Z, Song J. Preparation and properties of room temperature vulcanized silicone rubber based on rosin-grafted polydimethylsiloxane. RSC Adv 2018; 8:14684-14693. [PMID: 35540765 PMCID: PMC9080011 DOI: 10.1039/c7ra13672b] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2017] [Accepted: 03/31/2018] [Indexed: 12/22/2022] Open
Abstract
Rosin-grafted polydimethylsiloxane (RGSO) was prepared via ring-opening reaction of glycidyl ester of rosin acid (ER) with hydroxy-terminated amino polydimethylsiloxane (PDMS). The structure of RGSO was confirmed by 1H and 13C NMR spectroscopy. The effects of ER on relative molecular weight and rheological properties of RGSO were studied by gel permeation chromatography and rotational rheometry. Then, room temperature vulcanized (RTV) silicone rubber modified with rosin was prepared using RGSO, hydroxy-terminated PDMS, tetraethoxysilane, and organotin catalyst. The structures and properties of RTV silicone rubbers were studied by scanning electron microscopy, thermogravimetric analysis, a universal testing machine and dynamic mechanical analysis. The rosin-modified silicone rubber showed remarkably improved thermal and mechanical properties. Temperatures corresponding to 10% weight loss and maximum rate of weight loss increased by 66 °C and 177 °C, respectively. Moreover, the tensile strength and elongation at break increased by 138% and 113%. The role of rosin structure in improvement of properties is discussed. Rosin-grafted polydimethylsiloxane (RGSO) was prepared via ring-opening reaction of glycidyl ester of rosin acid (ER) with hydroxy-terminated amino polydimethylsiloxane (PDMS).![]()
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Affiliation(s)
- Qiaoguang Li
- Institute of Chemical Industry of Forestry Products
- Chinese Academy of Forestry
- Key Laboratory of Biomass Energy and Material
- National Engineering Laboratory for Biomass Chemical Utilization
- Key and Laboratory on Forest Chemical Engineering
| | - Xujuan Huang
- Institute of Chemical Industry of Forestry Products
- Chinese Academy of Forestry
- Key Laboratory of Biomass Energy and Material
- National Engineering Laboratory for Biomass Chemical Utilization
- Key and Laboratory on Forest Chemical Engineering
| | - He Liu
- Institute of Chemical Industry of Forestry Products
- Chinese Academy of Forestry
- Key Laboratory of Biomass Energy and Material
- National Engineering Laboratory for Biomass Chemical Utilization
- Key and Laboratory on Forest Chemical Engineering
| | - Shibin Shang
- Institute of Chemical Industry of Forestry Products
- Chinese Academy of Forestry
- Key Laboratory of Biomass Energy and Material
- National Engineering Laboratory for Biomass Chemical Utilization
- Key and Laboratory on Forest Chemical Engineering
| | - Zhanqian Song
- Institute of Chemical Industry of Forestry Products
- Chinese Academy of Forestry
- Key Laboratory of Biomass Energy and Material
- National Engineering Laboratory for Biomass Chemical Utilization
- Key and Laboratory on Forest Chemical Engineering
| | - Jie Song
- Department of Chemistry and Biochemistry
- University of Michigan-Flint
- Flint
- USA
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23
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Zhan X, Cai X, Zhang J. A novel crosslinking agent of polymethyl(ketoxime)siloxane for room temperature vulcanized silicone rubbers: synthesis, properties and thermal stability. RSC Adv 2018; 8:12517-12525. [PMID: 35541255 PMCID: PMC9079608 DOI: 10.1039/c7ra13375h] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2017] [Accepted: 03/24/2018] [Indexed: 11/30/2022] Open
Abstract
A novel cross-linker polymethyl(ketoxime)siloxane (PMKS) with dense pendant reactive groups based on polymethylhydrosiloxane (PMHS) was synthesized via dehydrocoupling reaction. The novel PMKS cross-linker was applied to a hydroxyl-terminated polydimethylsiloxane (HPDMS) matrix to prepare a series of novel RTV silicone rubbers. The chemical structure of PMKS and curing reaction between HPDMS and PMKS by hydrolytic condensation were verified by IR spectroscopy and 1H NMR. Thermal stability and mechanical properties of these novel RTV silicone rubbers have been studied by means of thermal gravimetric analysis (TGA) and universal tensile testing machine, respectively. The results displayed that a pronounced enhancement effect of the novel cross-linker PMKS on thermal stabilities and mechanical properties of RTV silicone rubbers as compared with the traditional cross-linking agent of methyltris(methylethylketoximino)silane (MTKS). Subsequently, the degradation residues were also characterized by FT-IR and X-ray photoelectron spectrometer (XPS). It was found that the striking enhancements in thermal properties and improvements on mechanical properties could be the synergistic effect of the T-type branched structure of PMKS cross-linker, in situ formation of dense PMKS phase in the chain network by self-crosslinking and the uniform distribution of PMKS cross-linker in the HPDMS matrix. A novel cross-linker polymethyl(ketoxime)siloxane was synthesized and then was cured with hydroxyl-terminated polydimethylsiloxane matrix to fabricate a series of novel RTV silicone rubber. Their properties was comparatively investigated.![]()
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Affiliation(s)
- Xibing Zhan
- College of Chemical and Material Engineering
- Quzhou University
- China
| | - Xiqing Cai
- Lab of Adhesives and In-situ Polymerization Technology
- Key Laboratory of Carbon Fiber and Functional Polymers
- Ministry of Education
- Beijing University of Chemical Technology
- Beijing 100029
| | - Junying Zhang
- Lab of Adhesives and In-situ Polymerization Technology
- Key Laboratory of Carbon Fiber and Functional Polymers
- Ministry of Education
- Beijing University of Chemical Technology
- Beijing 100029
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24
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Imoto H, Katoh R, Naka K. Open-cage silsesquioxane necklace polymers having closed-cage silsesquioxane pendants. Polym Chem 2018. [DOI: 10.1039/c8py00758f] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
A novel POSS monomer design has been proposed; a closed-cage POSS was tethered to an open-cage POSS, and the remaining two functional groups were employed for polymerization. The thermal and optical properties of the obtained main-chain type POSS polymers can be widely tuned by the substituents at the corners of the POSSs.
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Affiliation(s)
- Hiroaki Imoto
- Faculty of Molecular Chemistry and Engineering
- Graduate School of Science and Technology
- Kyoto Institute of Technology
- Kyoto 606-8585
- Japan
| | - Ryoichi Katoh
- Faculty of Molecular Chemistry and Engineering
- Graduate School of Science and Technology
- Kyoto Institute of Technology
- Kyoto 606-8585
- Japan
| | - Kensuke Naka
- Faculty of Molecular Chemistry and Engineering
- Graduate School of Science and Technology
- Kyoto Institute of Technology
- Kyoto 606-8585
- Japan
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25
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Xie C, Zeng X, Fang W, Lai X, Li H. Effect of alkyl-disubstituted ureido silanes with different alkyl chain structures on tracking resistance property of addition-cure liquid silicone rubber. Polym Degrad Stab 2017. [DOI: 10.1016/j.polymdegradstab.2017.07.015] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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26
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Chen K, Gu K, Qiang S, Wang C. Environmental stimuli-responsive self-repairing waterbased superhydrophobic coatings. RSC Adv 2017. [DOI: 10.1039/c6ra25135h] [Citation(s) in RCA: 38] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023] Open
Abstract
A waterbased self-repairing superhydrophobic coating shows a self-repairing ability after mechanical damage or contamination with organics, and thus long-term outdoor durability.
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Affiliation(s)
- Kunlin Chen
- Key Laboratory of Eco-Textiles
- Ministry of Education
- School of Textiles and Clothing
- Jiangnan University
- Wuxi 214122
| | - Kun Gu
- Key Laboratory of Eco-Textiles
- Ministry of Education
- School of Textiles and Clothing
- Jiangnan University
- Wuxi 214122
| | - Siyu Qiang
- Key Laboratory of Eco-Textiles
- Ministry of Education
- School of Textiles and Clothing
- Jiangnan University
- Wuxi 214122
| | - Chaoxia Wang
- Key Laboratory of Eco-Textiles
- Ministry of Education
- School of Textiles and Clothing
- Jiangnan University
- Wuxi 214122
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27
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Improvement of silicone rubber properties by addition of nano-SiO2 particles. J Appl Biomater Funct Mater 2016; 14 Suppl 1:e11-4. [PMID: 27339279 DOI: 10.5301/jabfm.5000298] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/14/2016] [Indexed: 11/20/2022] Open
Abstract
AIMS To improve the comprehensive performances of a one-part room temperature vulcanized silicone rubber(RTV-1 SiR), Nano-SiO2 particles are employed as the reinforcing agent. MATERIALS AND METHODS The SiO2/RTV-1 SiR composite is prepared using PDMS, ND42, D-60 and HMDS-modified SiO2 particles by mixing method. And then, the mechanical and electrical properties, including shear strength, tensile strength, hardness Shore A and volume resistivity, are investigated using experimental method. RESULTS The addition of nano-SiO2 particles can improve the properties of the SiO2/RTV-1 SiR composite in different degrees. And, the incorporation of 25~30 phr nano-SiO2 particles is found to be reasonable for silicone rubber composite with the best comprehensive performances. CONCLUSIONS The significant improvement of mechanical properties and electrical insulation of SiO2 may be contributed to the addition of modified nano-SiO2 particles. Additionally, the excellent comprehensive performances of SiO2/RTV-1 SiR composite guarantee a potential applications as electrical-insulating adhesives.
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28
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Zhang Y, He J, Yang R. The effects of phosphorus-based flame retardants and octaphenyl polyhedral oligomeric silsesquioxane on the ablative and flame-retardation properties of room temperature vulcanized silicone rubber insulating composites. Polym Degrad Stab 2016. [DOI: 10.1016/j.polymdegradstab.2015.12.007] [Citation(s) in RCA: 44] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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29
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Zhang D, Huang G, Shi Y, Zhang G, Liu Y. Polyhedral oligomeric silsesquioxane/silica/polydimethylsiloxane rubber composites with enhanced mechanical and thermal properties. J Appl Polym Sci 2015. [DOI: 10.1002/app.42173] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Dian Zhang
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University; Chengdu 610065 People's Republic of China
| | - Guangsu Huang
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University; Chengdu 610065 People's Republic of China
| | - Yunhui Shi
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University; Chengdu 610065 People's Republic of China
| | - Guangya Zhang
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University; Chengdu 610065 People's Republic of China
| | - Yufeng Liu
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University; Chengdu 610065 People's Republic of China
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30
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Lim SK, Lee JY, Choi HJ, Chin IJ. On Interaction Characteristics of Polyhedral Oligomeric Silsesquioxane Containing Polymer Nanohybrids. Polym Bull (Berl) 2015. [DOI: 10.1007/s00289-015-1405-5] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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31
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Rezakazemi M, Vatani A, Mohammadi T. Synergistic interactions between POSS and fumed silica and their effect on the properties of crosslinked PDMS nanocomposite membranes. RSC Adv 2015. [DOI: 10.1039/c5ra13609a] [Citation(s) in RCA: 102] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
A facile strategy for the synthesis of binary fumed silica–POSS nanofillers based nanocomposite membranes was developed.
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Affiliation(s)
- Mashallah Rezakazemi
- School of Chemical Engineering & Institute of LNG (I-LNG)
- College of Engineering
- University of Tehran
- Tehran
- Iran
| | - Ali Vatani
- School of Chemical Engineering & Institute of LNG (I-LNG)
- College of Engineering
- University of Tehran
- Tehran
- Iran
| | - Toraj Mohammadi
- Research Centre for Membrane Separation Processes
- Faculty of Chemical Engineering
- Iran University of Science and Technology (IUST)
- Tehran
- Iran
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32
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Affiliation(s)
- Christoph Rücker
- Institute for Sustainable and Environmental Chemistry, Leuphana University Lüneburg , Scharnhorststrasse 1, D-21335 Lüneburg, Germany
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33
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Zhang D, Shi Y, Liu Y, Huang G. Influences of polyhedral oligomeric silsesquioxanes (POSSs) containing different functional groups on crystallization and melting behaviors of POSS/polydimethylsiloxane rubber composites. RSC Adv 2014. [DOI: 10.1039/c4ra07242a] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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34
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Shi Y, Gao X, Zhang D, Liu Y, Huang G. Synthesis and thermal properties of modified room temperature vulcanized (RTV) silicone rubber using polyhedral oligomeric silsesquioxane (POSS) as a cross linking agent. RSC Adv 2014. [DOI: 10.1039/c4ra06706a] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Incompletely condensed tetra-silanol-phenyl-polyhedral oligomeric silsesquioxane (TOPO) was synthesized first and then copolymerized with hydroxy terminated polydimethylsiloxane (HPDMS) as a cross linking agent to prepare room temperature vulcanized (RTV) silicone rubber (TOPO–PDMS).
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Affiliation(s)
- Yunhui Shi
- College of Polymer Science and Engineering
- State Key Laboratory of Polymer Materials Engineering
- Sichuan University
- Chengdu 610065, People's Republic of China
| | - Xiaoxiao Gao
- College of Polymer Science and Engineering
- State Key Laboratory of Polymer Materials Engineering
- Sichuan University
- Chengdu 610065, People's Republic of China
| | - Dian Zhang
- College of Polymer Science and Engineering
- State Key Laboratory of Polymer Materials Engineering
- Sichuan University
- Chengdu 610065, People's Republic of China
| | - Yufeng Liu
- College of Polymer Science and Engineering
- State Key Laboratory of Polymer Materials Engineering
- Sichuan University
- Chengdu 610065, People's Republic of China
| | - Guangsu Huang
- College of Polymer Science and Engineering
- State Key Laboratory of Polymer Materials Engineering
- Sichuan University
- Chengdu 610065, People's Republic of China
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