DC Field | Value | Language |
---|---|---|
dc.contributor.author | Lee, Hyunhwan | ko |
dc.contributor.author | Lee, Yung | ko |
dc.contributor.author | Lee, Sun Woo | ko |
dc.contributor.author | Kang, Seung-Mo | ko |
dc.contributor.author | Kim, Yun Hyeok | ko |
dc.contributor.author | Jo, Woosung | ko |
dc.contributor.author | Kim, Taek-Soo | ko |
dc.contributor.author | Jang, Junho | ko |
dc.contributor.author | Bae, Byeong-Soo | ko |
dc.date.accessioned | 2021-10-18T06:10:30Z | - |
dc.date.available | 2021-10-18T06:10:30Z | - |
dc.date.created | 2021-10-18 | - |
dc.date.created | 2021-10-18 | - |
dc.date.created | 2021-10-18 | - |
dc.date.issued | 2021-11 | - |
dc.identifier.citation | COMPOSITES PART B-ENGINEERING, v.225 | - |
dc.identifier.issn | 1359-8368 | - |
dc.identifier.uri | http://hdl.handle.net/10203/288222 | - |
dc.description.abstract | Flexible surface protective coating in out-foldable devices should possess high elongation with high surface hardness. However, the two characteristics in conventional protecting materials are mutually exclusive. Here, we report a simple and effective composite design strategy to realize high elastic, yet still hard out-foldable and transparent surface protective coating material using molecular hybridization between polydimethylsiloxane (PDMS) and epoxy-functionalized siloxane matrix (ESH) via an in situ sol-gel reaction, forming siloxane linkages. Chemically crosslinked PDMS with ESH (P-ESH) makes optical transparency and greatly improves the elongation property while retaining the surface hardness of ESH due to the flexible and long-siloxane backbone of PDMS. As a result, we obtain the high-performance surface protective coating with greatly improved elongation (2.05% of fracture strain, 60% increase of bare ESH) and high surface hardness (pencil hardness: 4H @ 20 mu m thickness). We thoroughly characterize the mechanical behavior of P-ESH combined with microscopic (nano-scratch and nanoindentation tests) and macroscopic views (tensile test with digital image correlation methods). Enhanced elongation property with high surface hardness is induced by fully-recovery characteristics of P-ESH from external force. In addition, the fabricated P-ESH shows excellent reliability under repeated out-folding (5 mm of folding radius), continuous abrasion (steel wool test: 5,000 cycles), acid or base solutions, and ultraviolet irradiation. Our extensible transparent surface protective coating composite provides a great potential for application to next-generation out-foldable devices. | - |
dc.language | English | - |
dc.publisher | ELSEVIER SCI LTD | - |
dc.title | Elongation improvement of transparent and flexible surface protective coating using polydimethylsiloxane-anchored epoxy-functionalized siloxane hybrid composite for reliable out-foldable displays | - |
dc.type | Article | - |
dc.identifier.wosid | 000703581500005 | - |
dc.identifier.scopusid | 2-s2.0-85114992069 | - |
dc.type.rims | ART | - |
dc.citation.volume | 225 | - |
dc.citation.publicationname | COMPOSITES PART B-ENGINEERING | - |
dc.identifier.doi | 10.1016/j.compositesb.2021.109313 | - |
dc.embargo.liftdate | 9999-12-31 | - |
dc.embargo.terms | 9999-12-31 | - |
dc.contributor.localauthor | Kim, Taek-Soo | - |
dc.contributor.localauthor | Bae, Byeong-Soo | - |
dc.contributor.nonIdAuthor | Lee, Sun Woo | - |
dc.contributor.nonIdAuthor | Kang, Seung-Mo | - |
dc.description.isOpenAccess | N | - |
dc.type.journalArticle | Article | - |
dc.subject.keywordAuthor | Flexible surface protective coating | - |
dc.subject.keywordAuthor | Sol-gel siloxane hybrid composite | - |
dc.subject.keywordAuthor | Elongation | - |
dc.subject.keywordAuthor | Hardness | - |
dc.subject.keywordAuthor | Reliability | - |
dc.subject.keywordPlus | ANTI-FINGERPRINT PROPERTIES | - |
dc.subject.keywordPlus | OPTICALLY TRANSPARENT | - |
dc.subject.keywordPlus | ELASTIC-MODULUS | - |
dc.subject.keywordPlus | CROSS-LINKING | - |
dc.subject.keywordPlus | FILMS | - |
dc.subject.keywordPlus | SILICA | - |
dc.subject.keywordPlus | HARD | - |
dc.subject.keywordPlus | COLORLESS | - |
dc.subject.keywordPlus | ROBUST | - |
dc.subject.keywordPlus | GLASS | - |
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