1
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The mechanical and thermal properties of natural rubber/zinc methacrylate composites by latex compounding techniques. POLYM ENG SCI 2023. [DOI: 10.1002/pen.26291] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/17/2023]
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2
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Dynamic Chemistry: The Next Generation Platform for Various Elastomers and Their Mechanical Properties with Self-Healing Performance. Eur Polym J 2023. [DOI: 10.1016/j.eurpolymj.2023.111844] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
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3
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Gao T, Yu B, Hui Y, Chen J, Chung K, Wang S, Luo Y. Fabricated coordinate and ionic bonds in chemically cross‐linked ethylene acrylic elastomer for high‐performing elastomers. POLYM ENG SCI 2022. [DOI: 10.1002/pen.26230] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Affiliation(s)
- Tianming Gao
- School of Chemistry and Chemical Engineering, Key laboratory of Clean Energy Materials Chemistry of Guangdong Higher Education Institutes Lingnan Normal University Zhanjiang People's Republic of China
| | - Biao Yu
- School of Chemistry and Chemical Engineering, Key laboratory of Clean Energy Materials Chemistry of Guangdong Higher Education Institutes Lingnan Normal University Zhanjiang People's Republic of China
| | - Yonghai Hui
- School of Chemistry and Chemical Engineering, Key laboratory of Clean Energy Materials Chemistry of Guangdong Higher Education Institutes Lingnan Normal University Zhanjiang People's Republic of China
| | - Jing Chen
- School of Chemistry and Chemical Engineering, Key laboratory of Clean Energy Materials Chemistry of Guangdong Higher Education Institutes Lingnan Normal University Zhanjiang People's Republic of China
| | - Kyungho Chung
- Department of Polymer Engineering The University of Suwon Hwaseong‐Si Gyeonggi‐Do Republic of Korea
| | - Sheng Wang
- School of Chemistry and Chemical Engineering, Key laboratory of Clean Energy Materials Chemistry of Guangdong Higher Education Institutes Lingnan Normal University Zhanjiang People's Republic of China
| | - Yongyue Luo
- Agriculture Products Processing Research Institute Chinese Academy of Tropical Agriculture Science Zhanjiang People's Republic of China
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4
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Mohd Sani NF, Yee HJ, Othman N, Talib AA, Shuib RK. Intrinsic self-healing rubber: A review and perspective of material and reinforcement. POLYMER TESTING 2022; 111:107598. [DOI: 10.1016/j.polymertesting.2022.107598] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/02/2023]
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5
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Construction Method of Industrial College in Vocational Colleges Based on Cluster Analysis Algorithm. COMPUTATIONAL AND MATHEMATICAL METHODS IN MEDICINE 2022; 2022:3278395. [PMID: 35734772 PMCID: PMC9208966 DOI: 10.1155/2022/3278395] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/18/2022] [Revised: 05/14/2022] [Accepted: 05/18/2022] [Indexed: 12/02/2022]
Abstract
In the context of the combination of industry and education, the construction of industrial colleges in vocational colleges can drive the scientific development of specialty settings in colleges and universities, and promote the way for colleges to expand students' practical teaching under the teaching of theoretical knowledge, and it is also an effective way for students to stimulate their learning enthusiasm and innovation enthusiasm. Colleges and universities can increase the direction and characteristics of specialist settings in colleges while enhancing instructors' professional level through school-business collaboration, and growing measures of talent training in colleges and universities plays a significant guiding role. The way to set up industrial colleges in vocational colleges reflects the development characteristics of talent training mode in the new era, and it is also an effective way to meet the practical training of students and the actual needs of society. It is a new school running mode of transforming productivity, cooperation, and mutual benefit, which is very worthy of promotion and development. This paper analyzes the problems existing in the construction of industrial colleges in vocational colleges in China and finds out the corresponding solutions. A path method of industrial college construction in vocational colleges based on the cluster analysis algorithm is proposed. The validity of this model is verified by experiments, which lays a foundation for the construction of industrial colleges in vocational colleges.
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Chen J, Liao L, Zhang F, Gao T, Gao L, Ma L, Ma X. Improving reinforcement of natural rubber latex by introducing poly‐zinc dimethacrylate and sulfur vulcanizing system. POLYM ENG SCI 2022. [DOI: 10.1002/pen.25943] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Affiliation(s)
- Jing Chen
- School of Chemistry and Chemical Engineering, Key Laboratory of Clean Energy Materials Chemistry of Guangdong Higher Education Institutes Lingnan Normal University Zhanjiang People's Republic of China
| | - Lusheng Liao
- Guangdong Provincial Key Laboratory of Natural Rubber Processing Agricultural Products Processing Research Institute of Chinese Academy of Tropical Agricultural Sciences Zhanjiang Guangdong People's Republic of China
| | - Fuquan Zhang
- Guangdong Provincial Key Laboratory of Natural Rubber Processing Agricultural Products Processing Research Institute of Chinese Academy of Tropical Agricultural Sciences Zhanjiang Guangdong People's Republic of China
| | - Tiaoming Gao
- School of Chemistry and Chemical Engineering, Key Laboratory of Clean Energy Materials Chemistry of Guangdong Higher Education Institutes Lingnan Normal University Zhanjiang People's Republic of China
| | - Lijun Gao
- School of Chemistry and Chemical Engineering, Key Laboratory of Clean Energy Materials Chemistry of Guangdong Higher Education Institutes Lingnan Normal University Zhanjiang People's Republic of China
| | - Lin Ma
- School of Chemistry and Chemical Engineering, Key Laboratory of Clean Energy Materials Chemistry of Guangdong Higher Education Institutes Lingnan Normal University Zhanjiang People's Republic of China
| | - Xiaocong Ma
- School of Chemistry and Chemical Engineering, Key Laboratory of Clean Energy Materials Chemistry of Guangdong Higher Education Institutes Lingnan Normal University Zhanjiang People's Republic of China
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Utrera-Barrios S, Verdejo R, López-Manchado MÁ, Santana MH. The Final Frontier of Sustainable Materials: Current Developments in Self-Healing Elastomers. Int J Mol Sci 2022; 23:ijms23094757. [PMID: 35563147 PMCID: PMC9101787 DOI: 10.3390/ijms23094757] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2022] [Accepted: 04/24/2022] [Indexed: 02/01/2023] Open
Abstract
It is impossible to describe the recent progress of our society without considering the role of polymers; however, for a broad audience, "polymer" is usually related to environmental pollution. The poor disposal and management of polymeric waste has led to an important environmental crisis, and, within polymers, plastics have attracted bad press despite being easily reprocessable. Nonetheless, there is a group of polymeric materials that is particularly more complex to reprocess, rubbers. These macromolecules are formed by irreversible crosslinked networks that give them their characteristic elastic behavior, but at the same time avoid their reprocessing. Conferring them a self-healing capacity stands out as a decisive approach for overcoming this limitation. By this mean, rubbers would be able to repair or restore their damage automatically, autonomously, or by applying an external stimulus, increasing their lifetime, and making them compatible with the circular economy model. Spain is a reference country in the implementation of this strategy in rubbery materials, achieving successful self-healable elastomers with high healing efficiency and outstanding mechanical performance. This article presents an exhaustive summary of the developments reported in the previous 10 years, which demonstrates that this property is the last frontier in search of truly sustainable materials.
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8
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Huang J, Gong Z, Chen Y. A stretchable elastomer with recyclability and shape memory assisted self-healing capabilities based on dynamic disulfide bonds. POLYMER 2022. [DOI: 10.1016/j.polymer.2022.124569] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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9
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Preparation and Characterization of Self-Healing Polyurethane Powder Coating Using Diels-Alder Reaction. Polymers (Basel) 2021; 13:polym13213803. [PMID: 34771360 PMCID: PMC8586937 DOI: 10.3390/polym13213803] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2021] [Revised: 10/29/2021] [Accepted: 11/01/2021] [Indexed: 11/17/2022] Open
Abstract
Although powder coating systems offer many environmental, ecological and energy related benefits over liquid based coatings, in the case of uretdione based polyurethane systems, high curing temperature is still an issue. On the other hand, powder coating systems make it possible to reduce the costs and enhance the process of forming complex 3D structures using the deep drawing method by pre-coated metal substrates. During this processing method, there is a probability of micro crack formation in the coated film due to strain impact on the coating layer. A powder coating with self-healing ability is an ultimate solution to face not only this kind of fraction but also any other possible ones (such as defects caused by any impact on film surface during processing, transporting or even service). Here, a single molecule that is prepared via Diels–Alder cycloaddition reaction and retro Diels–Alder cleavage reaction was utilized as a self-healing additive to achieve self-healing ability in the powder coating system that is based on a commercially available uretdione cross-linker and OH-polyester resin. Coatings were prepared through melt mixing of components in a lab mixer, milling, sieving, and then application on the metal substrate through the electrostatic spraying method. To illustrate the role of self-healing additive, various concentrations (4 and 9% wt.) in combination with different curing temperatures (80 °C to 200 °C) were investigated. Both samples containing HA showed self-healing ability at elevated temperature around 120 °C for about 30 min with acceptable roughness and surface properties. Hardness measurement of cured film as well as thermal investigation indicate the chemical reaction of HA in a cross-linked network of cross-linker and resin. In addition, using HA leads to a 40 K drop in curing temperature of the system without using any catalyst. A 2.58% improvement in hardness values at a lower curing temperature and healing time of around 12.5 min at 120 °C to recover 100% of initial scratch (more than 10 cycles) in the sample containing 9% wt. HA was observed.
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10
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Scalet JM, Suekama TC, Jeong J, Gehrke SH. Enhanced Mechanical Properties by Ionomeric Complexation in Interpenetrating Network Hydrogels of Hydrolyzed Poly (N-vinyl Formamide) and Polyacrylamide. Gels 2021; 7:80. [PMID: 34209543 PMCID: PMC8293209 DOI: 10.3390/gels7030080] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2021] [Revised: 06/18/2021] [Accepted: 06/20/2021] [Indexed: 02/02/2023] Open
Abstract
Tough hydrogels were made by hydrolysis of a neutral interpenetrating network (IPN) of poly (N-vinyl formamide) PNVF and polyacrylamide (PAAm) networks to form an IPN of polyvinylamine (PVAm) and poly (acrylic acid) (PAAc) capable of intermolecular ionic complexation. Single network (SN) PAAm and SN PNVF have similar chemical structures, parameters and physical properties. The hypothesis was that starting with neutral IPN networks of isomeric monomers that hydrolyze to comparable extents under similar conditions would lead to formation of networks with minimal phase separation and maximize potential for charge-charge interactions of the networks. Sequential IPNs of both PNVF/PAAm and PAAm/PNVF were synthesized and were optically transparent, an indication of homogeneity at submicron length scales. Both IPNs were hydrolyzed in base to form PVAm/PAAc and PAAc/PVAm IPNs. These underwent ~5-fold or greater decrease in swelling at intermediate pH values (3-6), consistent with the hypothesis of intermolecular charge complexation, and as hypothesized, the globally neutral, charge-complexed gel states showed substantial increases in failure properties upon compression, including an order of magnitude increases in toughness when compared to their unhydrolyzed states or the swollen states at high or low pH values. There was no loss of mechanical performance upon repeated compression over 95% strain.
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Affiliation(s)
| | | | | | - Stevin H. Gehrke
- Department of Chemical and Petroleum Engineering, University of Kansas, Lawrence, KS 66045, USA; (J.M.S.); (T.C.S.); (J.J.)
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11
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Wang Y, Pei X, Xia L, Zhang Z, Wang Q, Wang T. Bio‐based
Eucommia ulmoides
gum/low density polyethylene shape memory composites reinforced by zinc methacrylate. POLYM INT 2021. [DOI: 10.1002/pi.6262] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Yan Wang
- State Key Laboratory of Solid Lubrication, Lanzhou Institute of Chemical Physics Chinese Academy of Sciences Lanzhou P.R. China
| | - Xianqiang Pei
- State Key Laboratory of Solid Lubrication, Lanzhou Institute of Chemical Physics Chinese Academy of Sciences Lanzhou P.R. China
- Qingdao Center of Resource Chemistry and New Materials Qingdao Center of Resource Chemistry and New Materials Jinshui Road, 36# Qingdao P.R. China
| | - Lin Xia
- Key Laboratory of Rubber‐Plastics, Ministry of Education/Shandong Provincial Key Laboratory of Rubber‐Plastics, School of Polymer Science and Engineering Qingdao University of Science and Technology Qingdao P.R. China
| | - Zhancheng Zhang
- State Key Laboratory of Solid Lubrication, Lanzhou Institute of Chemical Physics Chinese Academy of Sciences Lanzhou P.R. China
| | - Qihua Wang
- State Key Laboratory of Solid Lubrication, Lanzhou Institute of Chemical Physics Chinese Academy of Sciences Lanzhou P.R. China
| | - Tingmei Wang
- State Key Laboratory of Solid Lubrication, Lanzhou Institute of Chemical Physics Chinese Academy of Sciences Lanzhou P.R. China
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12
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Xiong J, Gong Z, Ding J, Chen Y. A conductive rubber with self‐healing ability enabled by metal‐ligand coordination. POLYM ADVAN TECHNOL 2021. [DOI: 10.1002/pat.5283] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Jianxiang Xiong
- Lab of Advanced Elastomer South China University of Technology Guangzhou China
| | - Zhou Gong
- Lab of Advanced Elastomer South China University of Technology Guangzhou China
| | - Jianping Ding
- College of Material Science and Engineering South China University of Technology Guangzhou China
| | - Yukun Chen
- Lab of Advanced Elastomer South China University of Technology Guangzhou China
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13
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Tang J, Xie T, Yuan Y, Hua J, Zhuang T, Luo Y, Geng J. Degradation of Polydienes Induced by Alkyllithium: Characterization and Reaction Mechanism. Macromolecules 2021. [DOI: 10.1021/acs.macromol.0c01934] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Jian Tang
- Key Laboratory of Rubber-Plastics, Ministry of Education/Shandong Provincial Key Laboratory of Rubber-plastics, Qingdao University of Science and Technology, Qingdao 266042, P.R. China
| | - Tinghao Xie
- Key Laboratory of Rubber-Plastics, Ministry of Education/Shandong Provincial Key Laboratory of Rubber-plastics, Qingdao University of Science and Technology, Qingdao 266042, P.R. China
| | - Yuka Yuan
- Key Laboratory of Rubber-Plastics, Ministry of Education/Shandong Provincial Key Laboratory of Rubber-plastics, Qingdao University of Science and Technology, Qingdao 266042, P.R. China
| | - Jing Hua
- Key Laboratory of Rubber-Plastics, Ministry of Education/Shandong Provincial Key Laboratory of Rubber-plastics, Qingdao University of Science and Technology, Qingdao 266042, P.R. China
| | - Tao Zhuang
- Key Laboratory of Rubber-Plastics, Ministry of Education/Shandong Provincial Key Laboratory of Rubber-plastics, Qingdao University of Science and Technology, Qingdao 266042, P.R. China
| | - Yi Luo
- School of Chemical Engineering, Dalian University of Technology, Dalian, Liaoning 116024, P.R. China
| | - Jieting Geng
- Key Laboratory of Rubber-Plastics, Ministry of Education/Shandong Provincial Key Laboratory of Rubber-plastics, Qingdao University of Science and Technology, Qingdao 266042, P.R. China
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14
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Behera PK, Mohanty S, Gupta VK. Self-healing elastomers based on conjugated diolefins: a review. Polym Chem 2021. [DOI: 10.1039/d0py01458c] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
The introduction of dynamic covalent and physical crosslinks into diolefin-based elastomers improves mechanical and self-healing properties. The presence of dynamic crosslinks also helps in the reprocessing of elastomers.
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Affiliation(s)
- Prasanta Kumar Behera
- Polymer Synthesis & Catalysis Group
- Reliance Research and Development Center
- Reliance Industries Limited
- Navi Mumbai 400701
- India
| | - Subhra Mohanty
- Polymer Synthesis & Catalysis Group
- Reliance Research and Development Center
- Reliance Industries Limited
- Navi Mumbai 400701
- India
| | - Virendra Kumar Gupta
- Polymer Synthesis & Catalysis Group
- Reliance Research and Development Center
- Reliance Industries Limited
- Navi Mumbai 400701
- India
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15
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Dzhardimalieva GI, Yadav BC, Kudaibergenov SE, Uflyand IE. Basic Approaches to the Design of Intrinsic Self-Healing Polymers for Triboelectric Nanogenerators. Polymers (Basel) 2020; 12:E2594. [PMID: 33158271 PMCID: PMC7694280 DOI: 10.3390/polym12112594] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2020] [Revised: 10/26/2020] [Accepted: 11/02/2020] [Indexed: 12/13/2022] Open
Abstract
Triboelectric nanogenerators (TENGs) as a revolutionary system for harvesting mechanical energy have demonstrated high vitality and great advantage, which open up great prospects for their application in various areas of the society of the future. The past few years have seen exponential growth in many new classes of self-healing polymers (SHPs) for TENGs. This review presents and evaluates the SHP range for TENGs, and also attempts to assess the impact of modern polymer chemistry on the development of advanced materials for TENGs. Among the most widely used SHPs for TENGs, the analysis of non-covalent (hydrogen bond, metal-ligand bond), covalent (imine bond, disulfide bond, borate bond) and multiple bond-based SHPs in TENGs has been performed. Particular attention is paid to the use of SHPs with shape memory as components of TENGs. Finally, the problems and prospects for the development of SHPs for TENGs are outlined.
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Affiliation(s)
- Gulzhian I. Dzhardimalieva
- Laboratory of Metallopolymers, The Institute of Problems of Chemical Physics RAS, 142432 Chernogolovka, Moscow Region, Russia;
- Moscow Aviation Institute (National Research University), 125993 Moscow, Russia
| | - Bal C. Yadav
- Nanomaterials and Sensors Research Laboratory, Department of Physics, Babasaheb Bhimrao Ambedkar University, Lucknow 226025, India;
| | - Sarkyt E. Kudaibergenov
- Institute of Polymer Materials and Technology, Almaty 050019, Kazakhstan;
- Laboratory of Engineering Profile, Satbayev University, Almaty 050013, Kazakhstan
| | - Igor E. Uflyand
- Department of Chemistry, Southern Federal University, 344006 Rostov-on-Don, Russia
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