{"title":"Transparent, Impact-Resistant Urethane-Siloxane Hybrid Coating with High Hardness and Exceptional Flexibility for Flexible Cover Windows","authors":"Zhu Wu, and , Jianhui Xia*, ","doi":"10.1021/acsapm.5c00281","DOIUrl":null,"url":null,"abstract":"<p >Highly impact-resistant transparent coatings, with a pencil hardness of 9H and an extremely small bending radius (<i>r</i> ≤ 1.5 mm), demonstrate significant potential as surface protection materials for ultrathin glass (UTG) cover windows in foldable displays. However, the inherent trade-offs between hardness and flexibility, as well as between hardness and impact resistance, pose a significant challenge in the development of such materials. To overcome these inherent conflicts, this study proposes a simple yet effective synergistic strategy for preparing urethane-siloxane hybrid coatings with the desired properties. The coating is a nanohybrid composite, prepared via photopolymerization, using methacrylate-functionalized polysilsesquioxane (MA-PSQ), 3-mercaptopropyl-functionalized polysilsesquioxane (MP-PSQ), and hexafunctional low-molecular-weight urethane acrylate (Hexa-UA).</p>","PeriodicalId":7,"journal":{"name":"ACS Applied Polymer Materials","volume":"7 8","pages":"5034–5046 5034–5046"},"PeriodicalIF":4.7000,"publicationDate":"2025-04-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"ACS Applied Polymer Materials","FirstCategoryId":"92","ListUrlMain":"https://pubs.acs.org/doi/10.1021/acsapm.5c00281","RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"MATERIALS SCIENCE, MULTIDISCIPLINARY","Score":null,"Total":0}
引用次数: 0
Abstract
Highly impact-resistant transparent coatings, with a pencil hardness of 9H and an extremely small bending radius (r ≤ 1.5 mm), demonstrate significant potential as surface protection materials for ultrathin glass (UTG) cover windows in foldable displays. However, the inherent trade-offs between hardness and flexibility, as well as between hardness and impact resistance, pose a significant challenge in the development of such materials. To overcome these inherent conflicts, this study proposes a simple yet effective synergistic strategy for preparing urethane-siloxane hybrid coatings with the desired properties. The coating is a nanohybrid composite, prepared via photopolymerization, using methacrylate-functionalized polysilsesquioxane (MA-PSQ), 3-mercaptopropyl-functionalized polysilsesquioxane (MP-PSQ), and hexafunctional low-molecular-weight urethane acrylate (Hexa-UA).
期刊介绍：
ACS Applied Polymer Materials is an interdisciplinary journal publishing original research covering all aspects of engineering, chemistry, physics, and biology relevant to applications of polymers.
The journal is devoted to reports of new and original experimental and theoretical research of an applied nature that integrates fundamental knowledge in the areas of materials, engineering, physics, bioscience, polymer science and chemistry into important polymer applications. The journal is specifically interested in work that addresses relationships among structure, processing, morphology, chemistry, properties, and function as well as work that provide insights into mechanisms critical to the performance of the polymer for applications.
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