植-醛结合鞣法刚性模块耐老化性研究  

Research on Ageing Resistant of Rigid Matrix in Vegetable Tannin-aldehyde Combination Tannage

作　　者：李冬灵[1] 单志华[1] 杨萌[2] 朱洪亮[2] 

机构地区：[1]四川大学皮革化学与工程教育部重点实验室,四川成都610065 [2]北京市纺织纤维检验所,北京100024

出　　处：《中国皮革》2014年第13期27-30,33,共5页China Leather

基　　金：国家公益专项:无铬皮革及其制品质量标准体系的建立(201410110)

摘　　要：将儿茶素与戊二醛形成的刚性模块、先植后醛鞣皮粉、先醛后植鞣皮粉分别进行紫外老化和热老化试验,再从颜色变化、水分含量、耐湿热稳定性、Td、单宁耐水洗耐汗渍能力等方面,分析三者的耐紫外老化和耐热老化的程度。结果表明:(1)3个试验组中,儿茶素与戊二醛形成的刚性模块,具有最强的耐紫外老化和耐热老化能力;(2)由于先植后醛的方法能够有利于该刚性模块的形成,因此,先植后醛的鞣法较先醛后植的鞣法有着更好的耐紫外老化和耐热老化能力。The ultraviolet aging resistance and thermal aging resistance of rigid matrix formed by catechin and glutaraldehyde, hide powers tanned by vegetable tannin - aldehyde combination tannage and aldehyde tannin - vegetable combination tannage were tested respectively. Then the degree of ultraviolet aging and thermal aging were analyzed in terms of color change, moisture content, hydrothermal stability, Td, water and perspiration resistance of tannins et al. The results indicate that the ultraviolet aging resistance and thermal aging resistance of rigid matrix are strongest. Compared with tannin - vegetable combination tannage, the ultraviolet aging resistance and thermal aging resistance of vegetable tannin - aldehyde combination tannage are better due to it is conducive to the formation of the rigid matrix, and the ultraviolet aging resistance is higher than thermal aging resistance.

关 键 词：植-醛结合鞣 刚性模块 耐老化性 DSC TG 

分 类 号：TS543[轻工技术与工程—皮革化学与工程]