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

被引：9

作者：

Jiao, Xiaojiao ^{[1
]}

Zhang, Taixu ^{[2
]}

Cheng, Fei ^{[1
]}

Fan, Yunxin ^{[1
]}

Liu, Jiangling ^{[1
]}

Lai, Guoqiao ^{[1
]}

Wu, Yufei ^{[1
]}

Yang, Xiongfa ^{[1
]}

机构：

[1] Hangzhou Normal Univ, Key Lab Organosilicon Chem & Mat Technol, Educ Minist, Hangzhou 311121, Zhejiang, Peoples R China

[2] Xinyaqiang Silicone Chem Co Ltd, Suqian 223809, Jiangsu, Peoples R China

来源：

COATINGS | 2020年 / 10卷 / 04期

关键词：

UV cured coating; silicone modified polyurethane; hyperbranched polycarbosilane; thermal stability; ACID; PERFORMANCE; ACRYLATES;

D O I：

10.3390/coatings10040350

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The conventional polyurethane (PU) coatings have poor heat resistance, which will undergo severe pyrolysis when the temperature exceeds 200 degrees 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(d)5%) of the UV-cured coating ranges from 258 to 268 degrees 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.

引用

页数：10

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