双端丙烯酰氧基聚醚硅油的制备及其改性聚丙烯酸酯性能

纺织学报 ›› 2012, Vol. 33 ›› Issue (10): 72-78.

双端丙烯酰氧基聚醚硅油的制备及其改性聚丙烯酸酯性能

李强¹,吴明华^1，2，孙晓芳¹,高笑飞¹

1. 浙江理工大学先进纺织材料与制备技术教育部重点实验室
2. 浙江理工大学生态染整技术教育部工程研究中心

收稿日期:2011-11-09 修回日期:2012-05-07 出版日期:2012-10-15 发布日期:2012-10-17
通讯作者: 吴明华 E-mail:wumh001@126.com

Synthesis of double terminated acryloyl-polyether silicon oil and property of its modified polyacrylate latex

Received:2011-11-09 Revised:2012-05-07 Online:2012-10-15 Published:2012-10-17

摘要/Abstract

摘要： 采用丙烯酸和双端羟基聚醚硅油为原料，通过酯化反应制备了双端丙烯酰氧基聚醚硅油，研究了催化剂用量、反应温度和时间、溶剂和阻聚剂用量等因素对酯化率影响，用FTIR和1H-NMR对产物结构进行了表征；并将其应用于聚丙烯酸酯乳液制备，测定了改性乳液及其涂料印花性能。结果表明：酯化反应最佳条件为：催化剂和溶剂用量分别为反应物总质量的5%、70%，阻聚剂用量为丙烯酸质量的0.75%，反应温度为110℃，反应时间为4h；FTIR和1H-NMR谱图表明酯化产物结构为丙烯酰氧基聚醚改性硅油；改性乳液胶膜的疏水性变大，断裂强度略有下降，断裂延伸率明显变大，断裂功略有增加；改性乳液应用于涂料印花，印花织物干、湿摩可达4级及以上，手感柔软。

关键词: 聚丙烯酸酯, 酯化反应, 丙烯酰氧基聚醚硅油, 涂料印花

Abstract: A double terminated acryloyloxy-polyether silicon oil was prepared by esterification reaction with acrylic acid and polyether modified silicon oil terminated by double hydroxyl as raw materials. The influences of reaction factors such as amount of catalyst，reaction temperature and time，dosage of solvent and inhibitor on esterification rate were investigated，the structure of product was characterized by FTIR and 1H-NMR, double terminated acryloyloxy-polyether silicon oil was applied in the preparation of silicon-modified polyacrylate latex, and the properties of silicon-modified polyacrylate latex and its pigment printing were measured. The results showed that the optimal esterification condition was that the amounts of catalyst and solvent were 5% and 70% of total reactant mass respectively, the dosage of inhibitor were 0.75% of the amounts of acrylic acid, reaction temperature was 110℃ and reaction time was 4h. The analysis of FTIR and 1H-NMR indicated that the structure of esterification product was acryloyloxy-polyether silicon oil. Hydrophoblicity of the modified polyacrylate latex film was enhanced obviously, its breaking tenacity was decreased slightly, its breaking extension was increased significantly and its work of break was increased some, the dry and wet rubbing fastness of pigment printing fabric reached 4 grades and above, and its handle became softer.

Key words: polyacrylate latex, esterification reaction, acryloyloxy-polyether silicone oil, pigment printing

中图分类号:

TQ316.33+4

李强吴明华孙晓芳高笑飞. 双端丙烯酰氧基聚醚硅油的制备及其改性聚丙烯酸酯性能[J]. 纺织学报, 2012, 33(10): 72-78.

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