Promoters for Improved Adhesion Strength between Addition-Cured Liquid Silicone Rubber and Low-Melting-Point Thermoplastic Polyurethanes
A polydimethylsiloxane armed with epoxy, alkoxy and acrylate groups was synthesized from silanol terminated-PDMS and epoxy and acrylate groups functionalized silane coupling agents, and utilized as the adhesion promoter (AP) to prepare addition-cured liquid silicone rubber that exhibited self-adhesi...
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MDPI AG
2022-01-01
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| Online Access: | https://www.mdpi.com/1996-1944/15/3/991 |
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| author | Jia-Kai Wu Kai-Wen Zheng Xing-Cheng Nie Huang-Rong Ge Qiong-Yan Wang Jun-Ting Xu |
| author_facet | Jia-Kai Wu Kai-Wen Zheng Xing-Cheng Nie Huang-Rong Ge Qiong-Yan Wang Jun-Ting Xu |
| author_sort | Jia-Kai Wu |
| collection | DOAJ |
| description | A polydimethylsiloxane armed with epoxy, alkoxy and acrylate groups was synthesized from silanol terminated-PDMS and epoxy and acrylate groups functionalized silane coupling agents, and utilized as the adhesion promoter (AP) to prepare addition-cured liquid silicone rubber that exhibited self-adhesion ability (SA-LSR) with biocompatible thermoplastic polyurethanes (TPU) sheets. The structural characteristics of AP were characterized by Fourier transform infrared (FTIR) spectroscopy, which demonstrated the strong adhesion to polyester-based TPU sheets due to a sufficient amount of acrylate groups, epoxy groups and silanol groups obtained by the hydrolysis of alkoxy groups. In detail, the peel-off strength of SA-LSR and TPU joints reached up to 7.63 N mm<sup>−1</sup> after the optimization of adhesion promoter including type and content, and curing condition including time and temperature. The cohesive failure was achieved during the sample breakage process. Moreover, the SA-LSR showed a good storage stability under proper storage conditions. This design strategy provided the feasibility to combine the advantages of addition-cured liquid silicone rubber and plastics with low melting points, promoting the potential application range of those silicone-based materials. |
| first_indexed | 2024-03-09T23:36:02Z |
| format | Article |
| id | doaj.art-65da1506fd044053b04716d820310de3 |
| institution | Directory Open Access Journal |
| issn | 1996-1944 |
| language | English |
| last_indexed | 2024-03-09T23:36:02Z |
| publishDate | 2022-01-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Materials |
| spelling | doaj.art-65da1506fd044053b04716d820310de32023-11-23T17:00:28ZengMDPI AGMaterials1996-19442022-01-0115399110.3390/ma15030991Promoters for Improved Adhesion Strength between Addition-Cured Liquid Silicone Rubber and Low-Melting-Point Thermoplastic PolyurethanesJia-Kai Wu0Kai-Wen Zheng1Xing-Cheng Nie2Huang-Rong Ge3Qiong-Yan Wang4Jun-Ting Xu5MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science & Engineering, Zhejiang University, Hangzhou 310027, ChinaMOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science & Engineering, Zhejiang University, Hangzhou 310027, ChinaResearch and Development Center, Zhejiang Sucon Silicone Co., Ltd., Shaoxing 312088, ChinaResearch and Development Center, Zhejiang Sucon Silicone Co., Ltd., Shaoxing 312088, ChinaResearch and Development Center, Zhejiang Sucon Silicone Co., Ltd., Shaoxing 312088, ChinaMOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science & Engineering, Zhejiang University, Hangzhou 310027, ChinaA polydimethylsiloxane armed with epoxy, alkoxy and acrylate groups was synthesized from silanol terminated-PDMS and epoxy and acrylate groups functionalized silane coupling agents, and utilized as the adhesion promoter (AP) to prepare addition-cured liquid silicone rubber that exhibited self-adhesion ability (SA-LSR) with biocompatible thermoplastic polyurethanes (TPU) sheets. The structural characteristics of AP were characterized by Fourier transform infrared (FTIR) spectroscopy, which demonstrated the strong adhesion to polyester-based TPU sheets due to a sufficient amount of acrylate groups, epoxy groups and silanol groups obtained by the hydrolysis of alkoxy groups. In detail, the peel-off strength of SA-LSR and TPU joints reached up to 7.63 N mm<sup>−1</sup> after the optimization of adhesion promoter including type and content, and curing condition including time and temperature. The cohesive failure was achieved during the sample breakage process. Moreover, the SA-LSR showed a good storage stability under proper storage conditions. This design strategy provided the feasibility to combine the advantages of addition-cured liquid silicone rubber and plastics with low melting points, promoting the potential application range of those silicone-based materials.https://www.mdpi.com/1996-1944/15/3/991self-adhesionliquid silicone rubberthermoplastic polyurethanescohesive failure |
| spellingShingle | Jia-Kai Wu Kai-Wen Zheng Xing-Cheng Nie Huang-Rong Ge Qiong-Yan Wang Jun-Ting Xu Promoters for Improved Adhesion Strength between Addition-Cured Liquid Silicone Rubber and Low-Melting-Point Thermoplastic Polyurethanes Materials self-adhesion liquid silicone rubber thermoplastic polyurethanes cohesive failure |
| title | Promoters for Improved Adhesion Strength between Addition-Cured Liquid Silicone Rubber and Low-Melting-Point Thermoplastic Polyurethanes |
| title_full | Promoters for Improved Adhesion Strength between Addition-Cured Liquid Silicone Rubber and Low-Melting-Point Thermoplastic Polyurethanes |
| title_fullStr | Promoters for Improved Adhesion Strength between Addition-Cured Liquid Silicone Rubber and Low-Melting-Point Thermoplastic Polyurethanes |
| title_full_unstemmed | Promoters for Improved Adhesion Strength between Addition-Cured Liquid Silicone Rubber and Low-Melting-Point Thermoplastic Polyurethanes |
| title_short | Promoters for Improved Adhesion Strength between Addition-Cured Liquid Silicone Rubber and Low-Melting-Point Thermoplastic Polyurethanes |
| title_sort | promoters for improved adhesion strength between addition cured liquid silicone rubber and low melting point thermoplastic polyurethanes |
| topic | self-adhesion liquid silicone rubber thermoplastic polyurethanes cohesive failure |
| url | https://www.mdpi.com/1996-1944/15/3/991 |
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