陈意,石欢欢,范浩军,袁继新,刘若望,张才,付善淼
Chen Yi~1,Shi Huanhuan~1,Fan Haojun~(1,2), Yuan Jixin~2,Liu Ruowang~2,Zhang Cai~3

• 1:四川大学制革清洁技术国家工程实验室
• 2:温州大学化学与材料科学学院
• 3:浙江五洲实业有限公司

摘要(Abstract)：

在聚氨酯溶液湿法成膜的过程中引发前驱体的原位水解缩聚反应,成功地将纳米级TiO_2颗粒均匀地引入聚氨酯合成革涂层中。低温氮吸附/脱附试验证明,在有机聚氨酯和无机纳米TiO_2颗粒间形成了相间孔隙,这使得本试验所制备的聚氨酯/纳米TiO_2原位杂化涂层具有明显提高的透气、透湿性。
As polyurethane solution coagulated in wet phase inversion process,in-situ hydrolysis and condensation reactions of nano precursor were triggered synchronously to introduce nano-TiO_2 into polyurethane synthetic leather coating.Water vapor and gas permeability of the hybrid coatings are found to increase with an increasing concentration of nano-TiO_2,which is explained as voids formed at organic polymer-inorganic nano particle interface.The existence of such voids was proved in nitrogen adsorption/desorption experiment,by the determination of extra mesopores and higher specific surface area than predicted values.

关键词(KeyWords)： 聚氨酯;纳米TiO_2;原位杂化;透气透湿;合成革
polyurethanes;nano-TiO_2;in-situ hybrid;water vapor/gas permeability;synthetic leather

Abstract:

Keywords:

基金项目(Foundation): 浙江省重大科技专项课题资助项目(2007C11100);; 国家863项目资助(2007AA03Z341)

作者(Author): 陈意,石欢欢,范浩军,袁继新,刘若望,张才,付善淼
Chen Yi~1,Shi Huanhuan~1,Fan Haojun~(1,2), Yuan Jixin~2,Liu Ruowang~2,Zhang Cai~3

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