摘要
本文以异佛尔酮二异氰酸酯(IPDI)、磺酸型水性聚酯多元醇、1,4-丁二醇(BDO)为主要原料,制备了磺酸型水性聚氨酯压敏胶,讨论了n(-NCO)/n(-OH)比值(R值)、小分子扩链剂/聚酯多元醇比值(C/A值)、磺酸型水性聚酯多元醇的分子量大小对压敏胶性能的影响。研究结果表明,当R值为1.20,C/A值为3.0,磺酸型水性聚酯多元醇的分子量为3000时,水性聚氨酯压敏胶的性能优异,初粘力达到滚动27.3cm(13#钢球),持粘力达到25.5h。
In this paper, the water-based polyurethane pressure-sensitive adhesive was synthesized by using the main materialsof sulfonated waterborne polyester polyol, IPDI and BDO. The ratio of n （-NCO） to n （-OH）, the ratio of small chain extender topolyester polyol and the molecular weight of polyester polyol on the disturbance of polyurethane pressure-sensitive adhesive werefurther discussed. As the results, when the R value was 1.20, C/A value was 3 and the molecular weight of the polyol polyester was3000, the waterborne polyurethane pressure-sensitive adhesive showed the good performance, in which its initial viscosity, holdingpower and peeling strength could reach up to 27.3cm with No.13 steel ball, 25.5h, respectively.
作者
张贤龙
晁国库
赵亚娟
钱乐旦
任宝东
ZHANG Xianlong CHAO guoku ZHAO Yajuan REN baodong(College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou 325035, Chin)
出处
《化工技术与开发》
CAS
2016年第11期5-7,共3页
Technology & Development of Chemical Industry
基金
浙江省教育厅科学研究项目(Y201327503)
关键词
水性聚氨酯
压敏胶
初粘性
持粘性
water-based polyurethane
pressure-sensitive adhesive
initial tack
hold tack
