低代PAMAM改性对超细纤维合成革透水汽性影响的研究  

Study on the Effect of Low Generation PAMAM on Water Vapor Permeability of Microfiber Synthetic Leather

作　　者：任龙芳[1,2] 孙森[1] 强涛涛[1] 王学川[1] 陈小珂[1] 

机构地区：[1]教育部轻化工助剂化学与技术重点实验室,陕西科技大学,陕西西安710021 [2]江南大学生态纺织教育部重点实验室,江苏无锡214122

出　　处：《皮革科学与工程》2013年第3期5-9,39,共6页Leather Science and Engineering

基　　金：国家青年基金(51103082);教育部博士点专项科研基金项目(20116125120002);陕西省科技计划项目(2011JQ2012);生态纺织教育部重点实验室(江南大学)开放课题资助课题(KLET1001);陕西科技大学研究生创新基金

摘　　要：以戊二醛作为交联剂,将低代聚酰胺-胺型树枝状大分子（PAMAM）交联到经过适当水解的超细纤维合成革基材上,采用单因素实验研究了体系pH、交联剂用量、PAMAM用量、作用温度以及作用时间对超细纤维合成革基材透水汽性的影响。研究结果表明：最佳改性条件为：体系pH：6~8,戊二醛用量为15%（以基布的质量计）,n（戊二醛）∶n（PAMAM）=1∶1.2,戊二醛作用时间为2 h,PAMAM反应时间为2 h,反应温度为35℃。在此条件下改性基布的透水汽性较未处理前提高了96.72%。With glutaraldehyde as cross-linking agent, low generation of polyamidoamine dendrimers were cross-linked to the microfiber synthetic leather base which was appropriate hydrolyzed. By the method of one-factor experimental design, some correlative factors such as pH, the dosage of crosslinking agent and PAMAM, reaction temperature and time which influenced the water vapor permeability of microfiber synthetic leather base were investigated. The results indicated that the best modified condition was： pH： 6-8, the dosage of glutaraldehyde 15% （according to base weight）, the mole ratio of glutaraldehyde and PAMAM 1：1.2, reaction time of glutaraldehyde 2h, reaction time of PAMAM 2h, reaction temperature 35~C. Under the optimal condition of modified microfiber synthetic leather, the water vapor permeability was improved by 96.72% than untreated base.

关 键 词：超细纤维合成革基布 PAMAM 透水汽性 戊二醛交联 

分 类 号：TS565[轻工技术与工程—皮革化学与工程]