聚氨酯-丙烯酸酯类无氟拒水剂的合成及应用  

Synthesis and application of polyurethane-acrylate fluorine-free water repellent agent

作　　者：姚安康 周攀飞 王少飞 许长海[2] 杜金梅[1,2] 李瀚宇 YAO An-kang;ZHOU Pan-fei;WANG Shao-fei;XU Chang-hai;DU Jin-mei;LI Han-yu(Key Laboratory of Eco-Textiles,Ministry of Education,Jiangnan University,Wuxi 214122,China;College of Texitles and Clothing,Qingdao University,Qingdao 266071,China;Beijing CTA-TE Chemicals Co.,Ltd.,Beijing 100176,China)

机构地区：[1]江南大学生态纺织教育部重点实验室,江苏无锡214122 [2]青岛大学纺织服装学院,山东青岛266071 [3]北京中纺化工股份有限公司,北京100176

出　　处：《应用化工》2021年第8期2051-2056,2061,共7页Applied Chemical Industry

基　　金：国家重点研发计划资助项目(2017YFB0309704);中央高校基本科研业务费专项资金(JUSRP21904)。

摘　　要：以异佛尔酮二异氰酸酯(IPDI)、聚四氢呋喃(PTMG)、N-甲基二乙醇胺(MDEA)、丙烯酸羟乙酯(HEA)、丙烯酸十八酯(SA)为主要原料,合成了阳离子型聚氨酯-丙烯酸酯无氟拒水剂,用于棉织物的整理。讨论了聚氨酯制备中单体所含—NCO与—OH基团的摩尔比R值、扩链剂用量、聚氨酯和丙烯酸酯配比等对拒水剂乳液的性能影响。以红外、热重分析了所合成聚合物,检测了乳液的离心稳定性、黏度、粒径。以静态接触角、扫描电镜等对整理后织物进行表征。结果表明,当R值为1.2~1.3,扩链剂用量为10%时制备的聚氨酯性能最优,聚氨酯和丙烯酸十八酯配比为4∶2时,制备的拒水剂效果最优。Cationicpolyurethane-acrylate fluorine-free water repellent agent was synthesized with isophoronediisocyanate(IPDI),polytetrahydrofuran(PTMG),N-methyldiethanolamine(MDEA),hydroxyethyl acrylate(HEA)and octadecyl acrylate(SA).The agent was used for water repellent finishing of cotton fabric.The effects of R value which is themole ratio of—NCO to—OH groups of monomers,the amount of chain extender,and the ratio of polyurethane to acrylate on the performance of water repellent emulsion was studied.The synthesized polymer was analyzed with FTIR and TG.The centrifugal stability,viscosity and particle size of emulsion were obtained.The finished fabric was characterized by static contact angle,scanning electron microscope and FTIR.The optimum synthetic conditions were that R value was 1.2~1.3 and the chain extender dosage was 10%.When the ratio of polyurethane to octadecyl acrylate was 4∶2,the agent had best water repellent property.

关 键 词：聚氨酯 阳离子型 丙烯酸十八酯 拒水整理 

分 类 号：TS192.5[轻工技术与工程—纺织化学与染整工程]