运动器材用水性聚氨酯合成革胶膜制备及其性能研究  

Preparation and Performance Study of Waterborne Polyu⁃rethane Synthetic Leather Film for Sports Equipment

作　　者：卢瑛[1] LU Ying(Xi’an Siyuan University,Xi’an 710038,China)

机构地区：[1]西安思源学院,陕西西安710038

出　　处：《中国皮革》2024年第7期154-158,共5页China Leather

基　　金：2023年陕西省体育局常规课题(2023341)。

摘　　要：为改善运动器材用水性聚氨酯合成革综合性能,本文以聚丙二醇2000与二月桂酸二丁基锡为原料,以硅烷偶联剂为改性剂制备了水性聚氨酯合成革胶膜,并对其性能进行了测试表征。结果表明,随着硅烷偶联剂用量增加,合成革用水性聚氨酯乳液由透明变为白色,粒径逐渐增大,黏度逐步增大,离心稳定性较好;随着硅烷偶联剂用量增加,水性聚氨酯合成革胶膜拉伸强度与断裂伸长率均先增后减,杨氏模量先缓慢增大后迅速增大,剥离强度先增后减,当用量为6 g时胶膜力学性能整体表现最优;随着硅烷偶联剂用量增加,水性聚氨酯合成革胶膜吸水率先减后增,水接触角逐渐增大,当用量为6 g时胶膜耐水性能整体表现最佳。In order to improve the comprehensive performance of waterborne polyurethane synthetic leather for sports equipment,this paper prepared waterborne polyurethane synthetic leather adhesive film using polypropylene glycol 2000 and dibutyltin dilaurate as raw materials,and silane coupling agent as modifier,and tested and character⁃ized its properties.The results show that with the increase of silane coupling agent,the aqueous polyurethane emul⁃sion for synthetic leather changes from transparent to white,the particle size and viscosity increases gradually,and the centrifugal stability is good.With the increase of silane coupling agent dosage,the tensile strength and elongation at break of waterborne polyurethane synthetic leather film first increases sand then decreases,the Young.s modulus first slowly increases and then rapidly increases,and the peel strength first increases and then decreases,when the dosage is 6 g,the overall mechanical performance of the film is optimal.As the amount of silane coupling agent increases,the water absorption of waterborne polyurethane synthetic leather film first decreases and then increases,and the water contact angle gradually increases,when the amount is 6 g,the overall water resistance performance of the film is the best.

关 键 词：水性聚氨酯 合成革 胶膜 乳液 耐水性能 

分 类 号：TS56[轻工技术与工程—皮革化学与工程]