Fabrication and characterization of UV-curable thiol-functionalized siloxane elastomers with enhanced adhesion for flexible substrates
The rapid advancement of flexible and wearable devices has increased the demand for substrate materials with excellent elasticity, biocompatibility, and transparency. Polydimethylsiloxane (PDMS) is widely used in these applications due to its advantageous properties. However, its inherently low surf...
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Elsevier
2024-11-01
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| Series: | Chemical Engineering Journal Advances |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2666821124000966 |
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| author | Young-Hun Kim Jongwon Kim Jeong Ju Baek Ki Cheol Chang Baek Soo Park Geun Yeol Bae Won-Gun Koh Gyojic Shin |
| author_facet | Young-Hun Kim Jongwon Kim Jeong Ju Baek Ki Cheol Chang Baek Soo Park Geun Yeol Bae Won-Gun Koh Gyojic Shin |
| author_sort | Young-Hun Kim |
| collection | DOAJ |
| description | The rapid advancement of flexible and wearable devices has increased the demand for substrate materials with excellent elasticity, biocompatibility, and transparency. Polydimethylsiloxane (PDMS) is widely used in these applications due to its advantageous properties. However, its inherently low surface energy limits its adhesion in high-stretchability contexts. To address this issue, various surface modification techniques have been developed, but these methods often alter the intrinsic properties of PDMS or introduce complexities in the manufacturing process. This study proposes elastomers based on ultraviolet (UV)-curable siloxane resins, which retain outstanding flexibility and transparency while significantly enhancing adhesion properties. UV-curable siloxanes were synthesized to prepare elastomers that were evaluated for their mechanical, thermal, and surface properties in comparison with PDMS. Results indicate that the prepared elastomers can be rapidly cured under UV exposure, achieving storage moduli 6 and 37 times higher than those of PDMS at 25 °C and 100 °C, respectively. Furthermore, thermal conductivity improved by 60 %, and the coefficient of thermal expansion was reduced by 26 %, demonstrating superior mechanical stability across diverse conditions. Adhesion properties were also markedly enhanced, as shown by peel-test adhesion strength that was 7 times greater than that of conventional PDMS. |
| format | Article |
| id | doaj-art-044c266957f94573b760d6e35f2d67ef |
| institution | OA Journals |
| issn | 2666-8211 |
| language | English |
| publishDate | 2024-11-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Chemical Engineering Journal Advances |
| spelling | doaj-art-044c266957f94573b760d6e35f2d67ef2025-08-20T02:38:32ZengElsevierChemical Engineering Journal Advances2666-82112024-11-012010067910.1016/j.ceja.2024.100679Fabrication and characterization of UV-curable thiol-functionalized siloxane elastomers with enhanced adhesion for flexible substratesYoung-Hun Kim0Jongwon Kim1Jeong Ju Baek2Ki Cheol Chang3Baek Soo Park4Geun Yeol Bae5Won-Gun Koh6Gyojic Shin7Green and Sustainable Materials R&D Department Research Institute of Clean Manufacturing System, Korea Institute of Industrials Technology (KITECH), Yangdaegiro-gil 89, Ipjang-myeon, Cheonan-si 31056, South Korea; Department of Chemical and Biomolecular Engineering, Yonsei University, Yonsei-ro 50, Seodaemun-gu, Seoul 03722, South KoreaThreeZeroE Co., Ltd. 362, Ori-ro, Gwangmyeong-si, Gyeonggi-do 14327, South KoreaGreen and Sustainable Materials R&D Department Research Institute of Clean Manufacturing System, Korea Institute of Industrials Technology (KITECH), Yangdaegiro-gil 89, Ipjang-myeon, Cheonan-si 31056, South KoreaGreen and Sustainable Materials R&D Department Research Institute of Clean Manufacturing System, Korea Institute of Industrials Technology (KITECH), Yangdaegiro-gil 89, Ipjang-myeon, Cheonan-si 31056, South KoreaGreen and Sustainable Materials R&D Department Research Institute of Clean Manufacturing System, Korea Institute of Industrials Technology (KITECH), Yangdaegiro-gil 89, Ipjang-myeon, Cheonan-si 31056, South KoreaDepartment of Materials Design Engineering, Kumoh National Institute of Technology, Gumi 39177, South KoreaDepartment of Chemical and Biomolecular Engineering, Yonsei University, Yonsei-ro 50, Seodaemun-gu, Seoul 03722, South Korea; Corresponding authors.Green and Sustainable Materials R&D Department Research Institute of Clean Manufacturing System, Korea Institute of Industrials Technology (KITECH), Yangdaegiro-gil 89, Ipjang-myeon, Cheonan-si 31056, South Korea; Corresponding authors.The rapid advancement of flexible and wearable devices has increased the demand for substrate materials with excellent elasticity, biocompatibility, and transparency. Polydimethylsiloxane (PDMS) is widely used in these applications due to its advantageous properties. However, its inherently low surface energy limits its adhesion in high-stretchability contexts. To address this issue, various surface modification techniques have been developed, but these methods often alter the intrinsic properties of PDMS or introduce complexities in the manufacturing process. This study proposes elastomers based on ultraviolet (UV)-curable siloxane resins, which retain outstanding flexibility and transparency while significantly enhancing adhesion properties. UV-curable siloxanes were synthesized to prepare elastomers that were evaluated for their mechanical, thermal, and surface properties in comparison with PDMS. Results indicate that the prepared elastomers can be rapidly cured under UV exposure, achieving storage moduli 6 and 37 times higher than those of PDMS at 25 °C and 100 °C, respectively. Furthermore, thermal conductivity improved by 60 %, and the coefficient of thermal expansion was reduced by 26 %, demonstrating superior mechanical stability across diverse conditions. Adhesion properties were also markedly enhanced, as shown by peel-test adhesion strength that was 7 times greater than that of conventional PDMS.http://www.sciencedirect.com/science/article/pii/S2666821124000966PDMSPhotocurable siloxaneSubstrate adhesionElastomersFlexible substrate |
| spellingShingle | Young-Hun Kim Jongwon Kim Jeong Ju Baek Ki Cheol Chang Baek Soo Park Geun Yeol Bae Won-Gun Koh Gyojic Shin Fabrication and characterization of UV-curable thiol-functionalized siloxane elastomers with enhanced adhesion for flexible substrates Chemical Engineering Journal Advances PDMS Photocurable siloxane Substrate adhesion Elastomers Flexible substrate |
| title | Fabrication and characterization of UV-curable thiol-functionalized siloxane elastomers with enhanced adhesion for flexible substrates |
| title_full | Fabrication and characterization of UV-curable thiol-functionalized siloxane elastomers with enhanced adhesion for flexible substrates |
| title_fullStr | Fabrication and characterization of UV-curable thiol-functionalized siloxane elastomers with enhanced adhesion for flexible substrates |
| title_full_unstemmed | Fabrication and characterization of UV-curable thiol-functionalized siloxane elastomers with enhanced adhesion for flexible substrates |
| title_short | Fabrication and characterization of UV-curable thiol-functionalized siloxane elastomers with enhanced adhesion for flexible substrates |
| title_sort | fabrication and characterization of uv curable thiol functionalized siloxane elastomers with enhanced adhesion for flexible substrates |
| topic | PDMS Photocurable siloxane Substrate adhesion Elastomers Flexible substrate |
| url | http://www.sciencedirect.com/science/article/pii/S2666821124000966 |
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