UV-Cured Coatings Prepared with Sulfhydryl-Terminated Branched Polyurethane and Allyl-Terminated Hyperbranched Polycarbosilane

The conventional polyurethane (PU) coatings have poor heat resistance, which will undergo severe pyrolysis when the temperature exceeds 200 °C. To overcome the shortcoming of conventional PU coatings, an ultraviolet (UV)-cured solvent-free hyperbranched polycarbosilane modified PU coatings was prepa...

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Main Authors:	Xiaojiao Jiao, Taixu Zhang, Fei Cheng, Yunxin Fan, Jiangling Liu, Guoqiao Lai, Yufei Wu, Xiongfa Yang
Format:	Article
Language:	English
Published:	MDPI AG 2020-04-01
Series:	Coatings
Subjects:	UV cured coating silicone modified polyurethane hyperbranched polycarbosilane thermal stability
Online Access:	https://www.mdpi.com/2079-6412/10/4/350

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record_format	Article
spelling	doaj-b856e2763f1d42608cf7ccb7908ebe842020-11-25T02:37:26ZengMDPI AGCoatings2079-64122020-04-011035035010.3390/coatings10040350UV-Cured Coatings Prepared with Sulfhydryl-Terminated Branched Polyurethane and Allyl-Terminated Hyperbranched PolycarbosilaneXiaojiao Jiao0Taixu Zhang1Fei Cheng2Yunxin Fan3Jiangling Liu4Guoqiao Lai5Yufei Wu6Xiongfa Yang7Key Laboratory of Organosilicon Chemistry and Material Technology of Education Ministry, Hangzhou Normal University, Hangzhou 311121, Zhejiang, ChinaXinyaqiang Silicone Chemical Co., Ltd, Suqian 223809, Jiangsu, ChinaKey Laboratory of Organosilicon Chemistry and Material Technology of Education Ministry, Hangzhou Normal University, Hangzhou 311121, Zhejiang, ChinaKey Laboratory of Organosilicon Chemistry and Material Technology of Education Ministry, Hangzhou Normal University, Hangzhou 311121, Zhejiang, ChinaKey Laboratory of Organosilicon Chemistry and Material Technology of Education Ministry, Hangzhou Normal University, Hangzhou 311121, Zhejiang, ChinaKey Laboratory of Organosilicon Chemistry and Material Technology of Education Ministry, Hangzhou Normal University, Hangzhou 311121, Zhejiang, ChinaKey Laboratory of Organosilicon Chemistry and Material Technology of Education Ministry, Hangzhou Normal University, Hangzhou 311121, Zhejiang, ChinaKey Laboratory of Organosilicon Chemistry and Material Technology of Education Ministry, Hangzhou Normal University, Hangzhou 311121, Zhejiang, ChinaThe conventional polyurethane (PU) coatings have poor heat resistance, which will undergo severe pyrolysis when the temperature exceeds 200 °C. To overcome the shortcoming of conventional PU coatings, an ultraviolet (UV)-cured solvent-free hyperbranched polycarbosilane modified PU coatings was prepared by sulfhydryl-terminated polyurethane and allyl-terminated hyperbranched polycarbosilane. The initial decomposition temperature (T<sub>d</sub>5%) of the UV-cured coating ranges from 258 to 268 °C, which is obviously higher than those of the conventional PU coatings reported. The coating shows fairly low water absorption in the range of 0.6–1.36 wt% and exhibits grade 1, grade 2 and grade 3 adhesion to glass, tin plate and aluminum sheet, respectively.https://www.mdpi.com/2079-6412/10/4/350UV cured coatingsilicone modified polyurethanehyperbranched polycarbosilanethermal stability
collection	DOAJ
language	English
format	Article
sources	DOAJ
author	Xiaojiao Jiao Taixu Zhang Fei Cheng Yunxin Fan Jiangling Liu Guoqiao Lai Yufei Wu Xiongfa Yang
spellingShingle	Xiaojiao Jiao Taixu Zhang Fei Cheng Yunxin Fan Jiangling Liu Guoqiao Lai Yufei Wu Xiongfa Yang UV-Cured Coatings Prepared with Sulfhydryl-Terminated Branched Polyurethane and Allyl-Terminated Hyperbranched Polycarbosilane Coatings UV cured coating silicone modified polyurethane hyperbranched polycarbosilane thermal stability
author_facet	Xiaojiao Jiao Taixu Zhang Fei Cheng Yunxin Fan Jiangling Liu Guoqiao Lai Yufei Wu Xiongfa Yang
author_sort	Xiaojiao Jiao
title	UV-Cured Coatings Prepared with Sulfhydryl-Terminated Branched Polyurethane and Allyl-Terminated Hyperbranched Polycarbosilane
title_short	UV-Cured Coatings Prepared with Sulfhydryl-Terminated Branched Polyurethane and Allyl-Terminated Hyperbranched Polycarbosilane
title_full	UV-Cured Coatings Prepared with Sulfhydryl-Terminated Branched Polyurethane and Allyl-Terminated Hyperbranched Polycarbosilane
title_fullStr	UV-Cured Coatings Prepared with Sulfhydryl-Terminated Branched Polyurethane and Allyl-Terminated Hyperbranched Polycarbosilane
title_full_unstemmed	UV-Cured Coatings Prepared with Sulfhydryl-Terminated Branched Polyurethane and Allyl-Terminated Hyperbranched Polycarbosilane
title_sort	uv-cured coatings prepared with sulfhydryl-terminated branched polyurethane and allyl-terminated hyperbranched polycarbosilane
publisher	MDPI AG
series	Coatings
issn	2079-6412
publishDate	2020-04-01
description	The conventional polyurethane (PU) coatings have poor heat resistance, which will undergo severe pyrolysis when the temperature exceeds 200 °C. To overcome the shortcoming of conventional PU coatings, an ultraviolet (UV)-cured solvent-free hyperbranched polycarbosilane modified PU coatings was prepared by sulfhydryl-terminated polyurethane and allyl-terminated hyperbranched polycarbosilane. The initial decomposition temperature (T<sub>d</sub>5%) of the UV-cured coating ranges from 258 to 268 °C, which is obviously higher than those of the conventional PU coatings reported. The coating shows fairly low water absorption in the range of 0.6–1.36 wt% and exhibits grade 1, grade 2 and grade 3 adhesion to glass, tin plate and aluminum sheet, respectively.
topic	UV cured coating silicone modified polyurethane hyperbranched polycarbosilane thermal stability
url	https://www.mdpi.com/2079-6412/10/4/350
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UV-Cured Coatings Prepared with Sulfhydryl-Terminated Branched Polyurethane and Allyl-Terminated Hyperbranched Polycarbosilane

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