1
|
Yu Q, Zhang Z, Tan P, Zhou J, Ma X, Shao Y, Wei S, Gao Z. Siloxane-Modified UV-Curable Castor-Oil-Based Waterborne Polyurethane Superhydrophobic Coatings. Polymers (Basel) 2023; 15:4588. [PMID: 38231972 PMCID: PMC10708309 DOI: 10.3390/polym15234588] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2023] [Revised: 11/27/2023] [Accepted: 11/29/2023] [Indexed: 01/19/2024] Open
Abstract
In recent years, superhydrophobic coatings with self-cleaning abilities have attracted considerable attention. In this study, we introduced hydroxyl-terminated polydimethylsiloxane (OH-PDMS) into castor-oil-based waterborne polyurethanes and synthesized silicone-modified castor-oil-based UV-curable waterborne polyurethanes (SCWPU). Further, we identified the optimal amount of OH-PDMS to be added and introduced different amounts of micro- and nanoscale heptadecafluorodecyltrimethoxysilane-modified SiO2 particles (FAS-SiO2) to prepare rough-surface SCWPU coatings with dense micro- and nanostructures, thus realizing waterborne superhydrophobic coatings. The results show that when the OH-PDMS content was 11 wt% and the total addition of FAS-SiO2 particles was 50% (with a 1:1:1 ratio of 100 nm, 1 µm, and 10 nm particles), the coatings exhibited a self-cleaning ability and superhydrophobicity with a contact angle of (152.36 ± 2.29)° and a roll-off angle of (4.9 ± 1.0)°. This castor-oil-based waterborne superhydrophobic coating has great potential for waterproofing, anti-fouling, anti-corrosion, and other applications.
Collapse
Affiliation(s)
- Qianhui Yu
- Engineering Research Center of Advanced Wooden Materials, Northeast Forestry University, Ministry of Education, Harbin 150040, China; (Q.Y.); (Z.Z.); (P.T.); (J.Z.); (X.M.); (Y.S.)
- College of Materials Science and Engineering, Northeast Forestry University, Harbin 150040, China
| | - Zengshuai Zhang
- Engineering Research Center of Advanced Wooden Materials, Northeast Forestry University, Ministry of Education, Harbin 150040, China; (Q.Y.); (Z.Z.); (P.T.); (J.Z.); (X.M.); (Y.S.)
- College of Materials Science and Engineering, Northeast Forestry University, Harbin 150040, China
| | - Pengyun Tan
- Engineering Research Center of Advanced Wooden Materials, Northeast Forestry University, Ministry of Education, Harbin 150040, China; (Q.Y.); (Z.Z.); (P.T.); (J.Z.); (X.M.); (Y.S.)
- College of Materials Science and Engineering, Northeast Forestry University, Harbin 150040, China
| | - Jiahao Zhou
- Engineering Research Center of Advanced Wooden Materials, Northeast Forestry University, Ministry of Education, Harbin 150040, China; (Q.Y.); (Z.Z.); (P.T.); (J.Z.); (X.M.); (Y.S.)
- College of Materials Science and Engineering, Northeast Forestry University, Harbin 150040, China
| | - Xiaojing Ma
- Engineering Research Center of Advanced Wooden Materials, Northeast Forestry University, Ministry of Education, Harbin 150040, China; (Q.Y.); (Z.Z.); (P.T.); (J.Z.); (X.M.); (Y.S.)
- College of Materials Science and Engineering, Northeast Forestry University, Harbin 150040, China
| | - Yingqing Shao
- Engineering Research Center of Advanced Wooden Materials, Northeast Forestry University, Ministry of Education, Harbin 150040, China; (Q.Y.); (Z.Z.); (P.T.); (J.Z.); (X.M.); (Y.S.)
- College of Materials Science and Engineering, Northeast Forestry University, Harbin 150040, China
| | - Shuangying Wei
- Engineering Research Center of Advanced Wooden Materials, Northeast Forestry University, Ministry of Education, Harbin 150040, China; (Q.Y.); (Z.Z.); (P.T.); (J.Z.); (X.M.); (Y.S.)
- College of Materials Science and Engineering, Northeast Forestry University, Harbin 150040, China
- Key Laboratory of Bio-based Material Science and Technology, Northeast Forestry University, Harbin 150040, China
| | - Zhenhua Gao
- Engineering Research Center of Advanced Wooden Materials, Northeast Forestry University, Ministry of Education, Harbin 150040, China; (Q.Y.); (Z.Z.); (P.T.); (J.Z.); (X.M.); (Y.S.)
- College of Materials Science and Engineering, Northeast Forestry University, Harbin 150040, China
- Key Laboratory of Bio-based Material Science and Technology, Northeast Forestry University, Harbin 150040, China
| |
Collapse
|
2
|
Wang H, Li X, Zhang E, Shi J, Xiong X, Kong C, Ren J, Li C, Wu K. Strong Thermo-tolerant Silicone-Modified Waterborne Polyurethane/Polyimide Pressure-Sensitive Adhesive. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2023. [PMID: 38015618 DOI: 10.1021/acs.langmuir.3c01564] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/30/2023]
Abstract
A waterborne polyurethane pressure-sensitive adhesive (WPUPSA) has the advantages of low pollution and good viscoelasticity. However, its poor thermo-tolerance limits its application in the field of high temperatures. Hence, a novel silicone-modified strong thermo-tolerant waterborne polyurethane/polyimide pressure-sensitive adhesive is developed as a way to remedy this problem. The single-chain structure of waterborne polyurethane (WPU) is transformed into a network structure by introducing the three-position network structure to increase the cohesive energy and heat resistance of the WPUPSA. Meanwhile, the primary chain of waterborne polyurethane (WPU) is modified by the reaction between pyromellitic dianhydride (PMDA) and isophorone diisocyanate (IPDI) to include an imide ring and a benzene ring with more stable structures and heat resistance. Characterization results of the prepared WPUPSA show that the thermo-tolerance index of the WPUPSA increases by 15.2% and the room temperature 180° peel strength and shear resistance of the WPUPSA increase by 80.9 and 231.8%, respectively. Meanwhile, the temperature corresponding to the maximum thermal decomposition rate of the samples is improved. More importantly, at 80 and 100 °C, the 180° peel strength and shear resistance of the modified samples are stronger than those of the unmodified samples. In addition, the energy storage modulus of WPUPSAs is also greater than the loss and increases with the increase of the frequency. Viscoelasticity dominates in the samples. This will provide new insight for the development of WPUPSAs in the field of high-temperature resistance.
Collapse
Affiliation(s)
- Hangzhou Wang
- Guangzhou Institute of Chemistry, Chinese Academy of Sciences, Guangzhou 510650, People's Republic of China
- University of Chinese Academy of Sciences, Beijing 100049, People's Republic of China
| | - Xiaobin Li
- Guangzhou Institute of Chemistry, Chinese Academy of Sciences, Guangzhou 510650, People's Republic of China
- University of Chinese Academy of Sciences, Beijing 100049, People's Republic of China
| | - Ending Zhang
- Guangzhou Institute of Chemistry, Chinese Academy of Sciences, Guangzhou 510650, People's Republic of China
- University of Chinese Academy of Sciences, Beijing 100049, People's Republic of China
| | - Jun Shi
- Guangzhou Institute of Chemistry, Chinese Academy of Sciences, Guangzhou 510650, People's Republic of China
- University of Chinese Academy of Sciences, Beijing 100049, People's Republic of China
- CASH GCC (Nanxiong) Research Institute of Advanced Materials Co., Ltd. Nanxiong 512400, People's Republic of China
- New Materials Research Institute of CASCHEM (Chongqing) Co., Ltd, Chongqing 400714, People's Republic of China
| | - Xiaoyan Xiong
- Guangzhou Institute of Chemistry, Chinese Academy of Sciences, Guangzhou 510650, People's Republic of China
- University of Chinese Academy of Sciences, Beijing 100049, People's Republic of China
- CAS Engineering Laboratory for Special Fine Chemicals, Guangzhou 510650, People's s Republic of China
| | - Chenguang Kong
- Guangzhou Institute of Chemistry, Chinese Academy of Sciences, Guangzhou 510650, People's Republic of China
- University of Chinese Academy of Sciences, Beijing 100049, People's Republic of China
| | - Jianrong Ren
- Guangzhou Institute of Chemistry, Chinese Academy of Sciences, Guangzhou 510650, People's Republic of China
- University of Chinese Academy of Sciences, Beijing 100049, People's Republic of China
| | - Cunzhi Li
- Guangzhou Institute of Chemistry, Chinese Academy of Sciences, Guangzhou 510650, People's Republic of China
- University of Chinese Academy of Sciences, Beijing 100049, People's Republic of China
| | - Kun Wu
- Guangzhou Institute of Chemistry, Chinese Academy of Sciences, Guangzhou 510650, People's Republic of China
- University of Chinese Academy of Sciences, Beijing 100049, People's Republic of China
- CASH GCC Shaoguan Research Institute of Advanced Materials, Nanxiong 512400, People's Republic of China
| |
Collapse
|
3
|
Zhou Y, Liu Y, Xin B, Qin Y, Kuang G. Preparation and Properties of a Novel Cross-Linked Network Waterborne Polyurethane for Wood Lacquer. Polymers (Basel) 2023; 15:polym15092193. [PMID: 37177339 PMCID: PMC10181243 DOI: 10.3390/polym15092193] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2023] [Revised: 04/18/2023] [Accepted: 04/29/2023] [Indexed: 05/15/2023] Open
Abstract
Waterborne polyurethane (WPU) is a waterborne coating with excellent physicochemical properties. Its deficiencies of water resistance, chemical resistance, staining, and hardness have limited the wide application of polyurethane in the wood lacquer market. In this study, polycarbonate diols (PCDL) were used as soft segments and WPCU was modified by cross-linking using Trimethylolpropane (TMP) to prepare polycarbonate type WPU (WPCU) with cross-linked network structure. The new wood lacquer was prepared by adding various additives and tested by applying it on wood board. The successful synthesis of WPCU was determined by FTIR testing, and the cross-linking degree of WPCU was probed by low-field NMR. The viscosity of the cross-linked WPCU emulsion showed a decreasing trend compared to the uncross-linked WPCU emulsion, and WPCU-2 had the smallest particle size. Compared with the uncrosslinked WPCU film, the crosslinked WPCU film had lower water absorption (2.2%), higher water contact angle (72.7°), excellent tensile strength (44.02 MPa), higher thermomechanical, and better water and alcohol resistance. The effect of crosslinker content on the microphase separation of WPCU chain segments on the surface roughness of the film was investigated by SEM. The wood paint prepared by WPCU emulsion has good dry heat resistance, chemical resistance, and adhesion, and the hardness of the wood paint when the TMP content is 3% reaches H. It also has good resistance to sticky stains, which can be used to develop new wood lacquer.
Collapse
Affiliation(s)
- Yuanyuan Zhou
- College of Chemistry and Chemical Engineering, Shanghai University of Engineering Science, Shanghai 201620, China
| | - Yan Liu
- College of Chemistry and Chemical Engineering, Shanghai University of Engineering Science, Shanghai 201620, China
| | - Binjie Xin
- College of Textile and Fashion Engineering, Shanghai University of Engineering Science, Shanghai 201620, China
| | - Ying Qin
- College of Chemistry and Chemical Engineering, Shanghai University of Engineering Science, Shanghai 201620, China
| | - Guankun Kuang
- College of Chemistry and Chemical Engineering, Shanghai University of Engineering Science, Shanghai 201620, China
| |
Collapse
|
4
|
Shu D, Tu S, Mai S, Xu J, Yang W. Preparation of cross-linked poly (methyl methacrylate) microspheres by post-crosslinking method and its application in light diffusers. Colloid Polym Sci 2023. [DOI: 10.1007/s00396-023-05091-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/05/2023]
|
5
|
Ma Y, Zhang M, Du W, Sun S, Zhao B, Cheng Y. Preparation and Properties of Hydrophobic Polyurethane Based on Silane Modification. Polymers (Basel) 2023; 15:polym15071759. [PMID: 37050373 PMCID: PMC10096977 DOI: 10.3390/polym15071759] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2023] [Revised: 03/24/2023] [Accepted: 03/28/2023] [Indexed: 04/05/2023] Open
Abstract
Waterborne coatings have obtained more and more attention from researchers with increasing concerns in environmental protection, and have the advantages of being green, environmentally friendly and safe. However, the introduction of hydrophilic groups leads to lower hydrophobicity and it is difficult to meet the requirements of complex application environments. Herein, we proposed an optimization approach of waterborne polyurethane (WPU) with vinyl tris(β-methoxyethoxy) silane (A172), and it was found that the surface roughness, mechanical properties, thermal stability and water resistance of WPU will be increased to a certain extent with the addition of A172. Moreover, the hydrophobicity of the coating film is best when the silicon content is 10% of the acrylic monomer mass and the water contact angle reaches 100°, which could exceed two-thirds of the research results in the last decade. Therefore, our study can provide some theoretical basis for the research of hydrophobic polyurethane coatings.
Collapse
Affiliation(s)
- Yuxian Ma
- School of Chemistry and Chemical Engineering, North University of China, Taiyuan 030051, China
- Dezhou Industrial Technology Research Institute, North University of China, Dezhou 253034, China
| | - Minghui Zhang
- School of Chemistry and Chemical Engineering, North University of China, Taiyuan 030051, China
- Dezhou Industrial Technology Research Institute, North University of China, Dezhou 253034, China
| | - Wenhao Du
- School of Chemistry and Chemical Engineering, North University of China, Taiyuan 030051, China
- Dezhou Industrial Technology Research Institute, North University of China, Dezhou 253034, China
| | - Shixiong Sun
- School of Chemistry and Chemical Engineering, North University of China, Taiyuan 030051, China
- Dezhou Industrial Technology Research Institute, North University of China, Dezhou 253034, China
| | - Benbo Zhao
- School of Chemistry and Chemical Engineering, North University of China, Taiyuan 030051, China
- Dezhou Industrial Technology Research Institute, North University of China, Dezhou 253034, China
| | - Yuan Cheng
- School of Chemistry and Chemical Engineering, North University of China, Taiyuan 030051, China
| |
Collapse
|
6
|
Qian Y, Dong F, Guo L, Lu S, Xu X, Liu H. Self-Healing and Reprocessable Terpene Polysiloxane-Based Poly(thiourethane-urethane) Material with Reversible Thiourethane Bonds. Biomacromolecules 2023; 24:1184-1193. [PMID: 36808988 DOI: 10.1021/acs.biomac.2c01230] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/23/2023]
Abstract
Polyurethane materials will come into contact with different solvents in daily life, and at the same time, they will be subject to different degrees of collision, wear and tear. Failure to take corresponding preventative or reparative measures will result in a waste of resources and an increase in costs. To this end, we prepared a novel polysiloxane with isobornyl acrylate and thiol groups as side groups, which was further used in the preparation of poly(thiourethane-urethane) materials. Thiourethane bonds generated by the click reaction of thiol groups with isocyanates endow poly(thiourethane-urethane) materials with the ability to heal and reprocess. Isobornyl acrylate with a large sterically hindered rigid ring promotes segment migration, accelerating the exchange of thiourethane bonds, which is beneficial to the recycling of materials. These results not only promote the development of terpene derivative-based polysiloxanes but also show the great potential of thiourethane as a dynamic covalent bond in the field of polymer reprocessing and healing.
Collapse
Affiliation(s)
- Yuehan Qian
- College of Chemical Engineering, Jiangsu Provincial Key Lab for the Chemistry and Utilization of Agro-Forest Biomass, Jiangsu Key Lab of Biomass-Based Green Fuels and Chemicals, Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, International Innovation Center for Forest Chemicals and Materials, Nanjing Forestry University, Nanjing, 210037 Jiangsu Province, China
| | - Fuhao Dong
- Institute of Chemical Industry of Forestry Products, Key Laboratory of Biomass Energy and Material, National Engineering Laboratory for Biomass Chemical Utilization, Key and Open Laboratory of Forest Chemical Engineering, State Forestry Administration, Chinese Academy of Forestry, Nanjing, 210042 Jiangsu Province, China
| | - Lizhen Guo
- Institute of Chemical Industry of Forestry Products, Key Laboratory of Biomass Energy and Material, National Engineering Laboratory for Biomass Chemical Utilization, Key and Open Laboratory of Forest Chemical Engineering, State Forestry Administration, Chinese Academy of Forestry, Nanjing, 210042 Jiangsu Province, China
| | - Shanling Lu
- College of Chemical Engineering, Jiangsu Provincial Key Lab for the Chemistry and Utilization of Agro-Forest Biomass, Jiangsu Key Lab of Biomass-Based Green Fuels and Chemicals, Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, International Innovation Center for Forest Chemicals and Materials, Nanjing Forestry University, Nanjing, 210037 Jiangsu Province, China
| | - Xu Xu
- College of Chemical Engineering, Jiangsu Provincial Key Lab for the Chemistry and Utilization of Agro-Forest Biomass, Jiangsu Key Lab of Biomass-Based Green Fuels and Chemicals, Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, International Innovation Center for Forest Chemicals and Materials, Nanjing Forestry University, Nanjing, 210037 Jiangsu Province, China
| | - He Liu
- Institute of Chemical Industry of Forestry Products, Key Laboratory of Biomass Energy and Material, National Engineering Laboratory for Biomass Chemical Utilization, Key and Open Laboratory of Forest Chemical Engineering, State Forestry Administration, Chinese Academy of Forestry, Nanjing, 210042 Jiangsu Province, China
| |
Collapse
|
7
|
Ma G, Wang Q, Ye J, He L, Guo L, Li X, Qiu T, Tuo X. The Multi-Step Chain Extension for Waterborne Polyurethane Binder of Para-Aramid Fabrics. Molecules 2022; 27:7588. [PMID: 36364417 PMCID: PMC9656495 DOI: 10.3390/molecules27217588] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2022] [Revised: 10/31/2022] [Accepted: 11/02/2022] [Indexed: 10/03/2023] Open
Abstract
The comprehensive balance of the mechanical, interfacial, and environmental requirements of waterborne polyurethane (WPU) has proved challenging, but crucial in the specific application as the binder for high-performance polymer fiber composites. In this work, a multi-step chain extension (MCE) method was demonstrated using three kinds of small extenders and one kind of macro-chain extender (CE) for different chain extension steps. One dihydroxyl blocked small molecular urea (1,3-dimethylolurea, DMU) was applied as one of the CEs and, through the hybrid macrodiol/diamine systems of polyether, polyester, and polysiloxane, the WPU was developed by the step-by-step optimization on each chain extending reaction via the characterization on the H-bonding association, microphase separation, and mechanical properties. The best performance was achieved when the ratio of polyether/polyester was controlled at 6:4, while 2% of DMU and 1% of polysiloxane diamine was incorporated in the third and fourth chain extension steps, respectively. Under the condition, the WPU exhibited not only excellent tensile strength of 30 MPa, elongation of break of about 1300%, and hydrophobicity indicated by the water contact angle of 98°, but also effective interfacial adhesion to para-aramid fabrics. The peeling strength of the joint based on the polysiloxane incorporated WPU after four steps of chain extension was 430% higher than that prepared through only two steps of chain extension. Moreover, about 44% of the peeling strength was sustained after the joint had been boiling for 40 min in water, suggesting the potential application for high-performance fabric composites.
Collapse
Affiliation(s)
- Ge Ma
- Key Laboratory of Carbon Fiber and Functional Polymers, Ministry of Education, Beijing University of Chemical Technology, Beijing 100029, China
- Beijing Engineering Research Center of Synthesis and Application of Waterborne Polymer, Beijing University of Chemical Technology, Beijing 100029, China
| | - Qianshu Wang
- Key Laboratory of Carbon Fiber and Functional Polymers, Ministry of Education, Beijing University of Chemical Technology, Beijing 100029, China
- Beijing Engineering Research Center of Synthesis and Application of Waterborne Polymer, Beijing University of Chemical Technology, Beijing 100029, China
| | - Jun Ye
- Key Laboratory of Carbon Fiber and Functional Polymers, Ministry of Education, Beijing University of Chemical Technology, Beijing 100029, China
- Beijing Engineering Research Center of Synthesis and Application of Waterborne Polymer, Beijing University of Chemical Technology, Beijing 100029, China
| | - Lifan He
- Key Laboratory of Carbon Fiber and Functional Polymers, Ministry of Education, Beijing University of Chemical Technology, Beijing 100029, China
- Beijing Engineering Research Center of Synthesis and Application of Waterborne Polymer, Beijing University of Chemical Technology, Beijing 100029, China
| | - Longhai Guo
- Key Laboratory of Carbon Fiber and Functional Polymers, Ministry of Education, Beijing University of Chemical Technology, Beijing 100029, China
- Beijing Engineering Research Center of Synthesis and Application of Waterborne Polymer, Beijing University of Chemical Technology, Beijing 100029, China
| | - Xiaoyu Li
- Key Laboratory of Carbon Fiber and Functional Polymers, Ministry of Education, Beijing University of Chemical Technology, Beijing 100029, China
- Beijing Engineering Research Center of Synthesis and Application of Waterborne Polymer, Beijing University of Chemical Technology, Beijing 100029, China
| | - Teng Qiu
- Key Laboratory of Carbon Fiber and Functional Polymers, Ministry of Education, Beijing University of Chemical Technology, Beijing 100029, China
- Beijing Engineering Research Center of Synthesis and Application of Waterborne Polymer, Beijing University of Chemical Technology, Beijing 100029, China
| | - Xinlin Tuo
- Key Laboratory of Advanced Materials (MOE), Department of Chemical Engineering, Tsinghua University, Beijing 100084, China
| |
Collapse
|
8
|
Preparation and Characterization of Water-borne Polyurethane Based on Benzotriazole as Pendant Group with Different N-Alkylated Chain Extenders and Its Application in Anticorrosion. Molecules 2022; 27:molecules27217581. [DOI: 10.3390/molecules27217581] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2022] [Revised: 11/01/2022] [Accepted: 11/02/2022] [Indexed: 11/09/2022] Open
Abstract
A series of novel anti-corrosive coatings were synthesized successfully. Water-borne polyurethane (WPU) was synthesized using polyethylene glycol and modified by grafting benzotriazole (BTA) as a pendant group (WPU-g-BTA) and N-alkylated amines (ethylene diamine (A), diethylene triamine (B), triethylene tetramine (C)) as side-chain extenders. Fourier-transform infrared spectroscopy, thermogravimetry, and dynamic mechanical analyses were used to characterize the structural and thermomechanical properties of the samples. A gas permeability analyzer (GPA) was used to evaluate molecular barrier properties. The corrosion inhibition performance of WPU-g-BTA-A, WPU-g-BTA-B, and WPU-g-BTA-C coatings in 3.5 wt% NaCl solution was determined by electrochemical measurements. WPU-g-BTA-C coating synthesized with a high cross-linking density showed superior anticorrosive performance. The as-prepared coatings exhibited a very low icorr value of 0.02 µA.cm−2, a high Ecorr value of −0.02 V, as well as excellent inhibition efficiency (99.972%) and impedance (6.33 Ω) after 30 min of exposure.
Collapse
|
9
|
Meng Y, Chen K, Yang Y, Jiang T, Hao T, Lu X, Zhang Q. Synthesis and Characterization of Crosslinked Castor Oil-Based Polyurethane Nanocomposites Based on Novel Silane-Modified Isocyanate and Their Potential Application in Heat Insulating Coating. Polymers (Basel) 2022; 14:polym14091880. [PMID: 35567049 PMCID: PMC9105965 DOI: 10.3390/polym14091880] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2022] [Revised: 04/27/2022] [Accepted: 04/29/2022] [Indexed: 02/05/2023] Open
Abstract
An isocyanate with trimethoxysilane groups at the side chains (IPDI-M) was synthesized via an addition between the mercaptopropyl trimethoxysilane groups (MPTMS) and IPDI tripolymer (IPDI-T). Then, silane grafted isocyanate as the functional hard segment, castor oil as the soft segment, poly (ethylene adipate) diol (PEA) as the chain extender, and MPTMS as an end-capping reagent were applied to form a series of organosilicon hybrid bio-based polyurethane (CPUSi). The effect of the IPDI-M contents on the thermal stability, mechanical properties, and surface properties of the resulting product was systematically investigated. Profit from the Si–O–Si crosslinked structures formed from MPTMS curing, the tensile strength, and Young’s modulus of the resulting products increased from 9.5 MPa to 22.3 Mpa and 4.05 Mpa to 81.59 Mpa, respectively, whereas the elongation at break decreased from 342% to 101%. The glass transition temperature, thermal stability, transparency, hydrophobicity, and chemical resistance were remarkably strengthened for the obtained organosilicon-modified polyurethane with the increasing MPTMS content. At the end of the work, the thermal insulation coating that was based on CPUSi and ATO can effectively block near-infrared rays, and the temperature difference between the inside and outside of the film reached 15.1 °C.
Collapse
Affiliation(s)
- Yuan Meng
- School of Materials Science and Engineering, Hubei University, Wuhan 430061, China; (Y.M.); (K.C.); (Y.Y.); (T.J.); (T.H.)
- School of Chemistry and Chemical Engineering, Hubei Polytechnic University, Huangshi 435005, China
| | - Ken Chen
- School of Materials Science and Engineering, Hubei University, Wuhan 430061, China; (Y.M.); (K.C.); (Y.Y.); (T.J.); (T.H.)
| | - Yuyin Yang
- School of Materials Science and Engineering, Hubei University, Wuhan 430061, China; (Y.M.); (K.C.); (Y.Y.); (T.J.); (T.H.)
| | - Tao Jiang
- School of Materials Science and Engineering, Hubei University, Wuhan 430061, China; (Y.M.); (K.C.); (Y.Y.); (T.J.); (T.H.)
| | - Tonghui Hao
- School of Materials Science and Engineering, Hubei University, Wuhan 430061, China; (Y.M.); (K.C.); (Y.Y.); (T.J.); (T.H.)
| | - Xiaoju Lu
- School of Chemistry and Chemical Engineering, Hubei Polytechnic University, Huangshi 435005, China
- Correspondence: (X.L.); (Q.Z.)
| | - Qunchao Zhang
- School of Materials Science and Engineering, Hubei University, Wuhan 430061, China; (Y.M.); (K.C.); (Y.Y.); (T.J.); (T.H.)
- Correspondence: (X.L.); (Q.Z.)
| |
Collapse
|
10
|
Environmentally friendly plant‐based waterborne polyurethane for hydrophobic and heat‐resistant films. J Appl Polym Sci 2022. [DOI: 10.1002/app.52437] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
|
11
|
Vaidya SM, Jadhav SM, Patil MJ, Mestry SU, Mahajan UR, Mhaske ST. Recent developments in waterborne polyurethane dispersions (WPUDs): a mini-review on thermal and mechanical properties improvement. Polym Bull (Berl) 2021. [DOI: 10.1007/s00289-021-03814-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
|
12
|
Ünügül T, Karaağaç B. Vulcanization of chlorinated polyethylene / chloroprene rubber compounds at lower temperatures in the presence of reactive silanes. J Appl Polym Sci 2021. [DOI: 10.1002/app.50544] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Affiliation(s)
- Tuba Ünügül
- Department of Chemical Engineering Kocaeli University, Umuttepe Campus Kocaeli Turkey
| | - Bağdagül Karaağaç
- Department of Chemical Engineering Kocaeli University, Umuttepe Campus Kocaeli Turkey
- Department of Polymer Science & Technology Kocaeli University, Umuttepe Campus Kocaeli Turkey
| |
Collapse
|
13
|
Wang R, Li C, Jiang Z, Wang Z. Self-Assembly of Amphiphilic Linear-Dendritic Carbosilane Block Surfactant for Waterborne Polyurethane Coating. Polymers (Basel) 2020; 12:polym12061318. [PMID: 32527026 PMCID: PMC7362264 DOI: 10.3390/polym12061318] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2020] [Revised: 06/03/2020] [Accepted: 06/05/2020] [Indexed: 11/16/2022] Open
Abstract
The traditional two-component waterborne polyurethane coating system cannot effectively inhibit the undesirable side reaction between polyisocyanate and water during curing hardening. It is difficult to avoid the microbubbles formed by this reaction during the film formation process, which severely degrades the appearance and decreases the performance of the film. Therefore, the addition of an amphiphilic Linear-Dendritic carbosilane Block Surfactant (LDBS) to the hardener can physically separate the polyisocyanate emulsion from water through self-assembly. The bubble-free film thickness (BFFT) of the two-component waterborne polyurethane coating in this study is approximately 1.5-fold greater than commercial waterborne polyurethane coatings in today’s coating industry. Fourier transform infrared spectroscopy (FT-IR) varied the effectiveness of LDBS for inhibition of the undesirable side reaction. The successful application of the waterborne polyurethane coating with LDBS on the 600 km/h high-speed maglev train provides a technical solution for large-scale industrialization of waterborne polyurethane coating and complete replacement of solvent polyurethane coating.
Collapse
|
14
|
Jia R, Hui Z, Huang Z, Liu X, Zhao C, Wang D, Wu D. Synthesis and antibacterial investigation of cationic waterborne polyurethane containing siloxane. NEW J CHEM 2020. [DOI: 10.1039/d0nj04625f] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Cationic waterborne polyurethane containing siloxane and quaternary ammonium salt in the side chain was synthesized, which showed an enhanced antibacterial property and hydrophobicity.
Collapse
Affiliation(s)
- Runping Jia
- School of Materials Science and Engineering
- Shanghai Institute of Technology
- Shanghai 201418
- P. R. China
| | - Zi Hui
- School of Materials Science and Engineering
- Shanghai Institute of Technology
- Shanghai 201418
- P. R. China
| | - Zhixiong Huang
- School of Materials Science and Engineering
- Shanghai Institute of Technology
- Shanghai 201418
- P. R. China
| | - Xin Liu
- School of Materials Science and Engineering
- Shanghai Institute of Technology
- Shanghai 201418
- P. R. China
| | - Cheng Zhao
- School of Materials Science and Engineering
- Shanghai Institute of Technology
- Shanghai 201418
- P. R. China
| | - Dayang Wang
- School of Materials Science and Engineering
- Shanghai Institute of Technology
- Shanghai 201418
- P. R. China
| | - Dandan Wu
- School of Materials Science and Engineering
- Shanghai Institute of Technology
- Shanghai 201418
- P. R. China
| |
Collapse
|
15
|
Synthesis and Characterization of Unsymmetrical Double-Decker Siloxane (Basket Cage). Molecules 2019; 24:molecules24234252. [PMID: 31766625 PMCID: PMC6930635 DOI: 10.3390/molecules24234252] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2019] [Revised: 11/19/2019] [Accepted: 11/20/2019] [Indexed: 01/27/2023] Open
Abstract
The one-pot synthesis of an unsymmetrical double-decker siloxane with a novel structure via the reaction of double-decker tetrasodiumsilanolate with 1 equiv. of dichlorotetraphenyldisiloxane in the presence of an acid is reported herein for the first time. The target compound bearing all phenyl substituents on the unsymmetrical siloxane structure was successfully obtained, as confirmed by 1H-NMR, 13C-NMR, 29Si-NMR, IR, MALDI-TOF, and X-ray crystallography analyses. Additionally, the thermal properties of the product were evaluated by TG/DTA and compared with those of other siloxane cage compounds.
Collapse
|