改性淀粉与改性戊二醛配伍复鞣的工艺研究  

Combination Retannage with Modified Starch and Modified Glutaraldehyde

作　　者：吕斌[1] 马建中[1] 高党鸽[1] 关忍[1] 

机构地区：[1]陕西科技大学资源与环境学院,陕西西安710021

出　　处：《中国皮革》2009年第21期16-20,共5页China Leather

基　　金：西安市科技计划项目(CXY09023(3));国家自然科学基金(50573047);陕西科技大学科研创新团队建设项目(TD09-03);国家高技术研究发展(863)计划项目(2008AA03Z311)联合资助

摘　　要：采用正交试验设计法,对改性淀粉与改性戊二醛配伍复鞣蓝湿革工艺进行了优化,并对复鞣后坯革的耐湿热稳定性、增厚率及其物理机械性能进行了检测。研究结果表明最优工艺为:EST改性淀粉用量为2.0%,改性戊二醛鞣制起始pH值为4.0,改性戊二醛鞣制结束pH值为5.0,改性戊二醛用量为3.5%,鞣制时间为2h。复鞣后坯革的检测结果表明:采用EST改性淀粉与改性戊二醛配伍复鞣后,坯革的强度、韧性和柔软性等综合性能,优于铬复鞣、改性戊二醛复鞣及EST改性淀粉复鞣后的坯革。The retannage application process of modified starch associated with modified glutaraldehyde was optimized by orthogonal design method. The hydrothermal stability, increasation and physical mechanism capability of leather was measured. The optimized retannage application process is that the dosage of modified starch is 2.0%, the original pH of modified glutaraldehyde retannage is 4.0, the final pH of glutaraldehyde retannage is 5.0, the dosage of modified glutaraldehyde is 3.5%, retanage time is 2hrs. The softness, intensity and toughness of leather retanned by modified starch associated with modified glutaraldehyde is better than that of chrome retanned or modified glutaraldehyde retanned leather.

关 键 词：淀粉 复鞣 工艺 戊二醛 

分 类 号：TS54[轻工技术与工程—皮革化学与工程]