原位聚合改性二层革中胶原纤维-聚合物的作用方式研究  

Interactive pattern of collagen fiber-polymer in leather split modified by in-situ polymerization

作　　者：曾慧 舒信 苏寒雨 许维星[2] 周建飞[3] 石碧[2,3] 

机构地区：[1]四川大学轻纺与食品学院,四川成都610065 [2]四川大学制革清洁技术国家工程实验室.四川成都610065 [3]四川大学皮革化学与工程教育部重点实验室,四川成都610065

出　　处：《中国皮革》2018年第2期1-8,共8页China Leather

基　　金：国家自然科学基金(21476149)

摘　　要：采用甲基丙烯酸正丁酯（nBMA）的原位溶液聚合、原位乳液聚合和原位乳化聚合来改性二层革，并利用索氏提取、差示扫描量热（DSC）、动态热机械分析（DMA）及热重分析（TGA）等方法对改性二层革进行表征。结果表明：3种原位聚合技术均能显著提高二层革的力学性能；nBMA在二层革中发生聚合后与胶原纤维网络形成了互穿网络（IPN）结构，而这种IPN结构的形成是改性二层革力学性能显著增强的主要原因。The leather split was modified by in-situ solution polymerization, in-situ emulsion polymerization and the polymerization after in-situ emulsification of n-butyl methacrylate （nBMA）. Structure and performance of modified leather split were characterized by Soxhlet extraction, differential scanning calorimetry（ DSC）, dynamic thermomechanical analysis（DMA）, thermogravimetric analysis （TGA） and other methods. The results show that the mechanical properties of leather splits are improved remarkably through these three kinds of in-situ polymerization. The interpenetrating network （IPN） structure is formed between nBMA after polymerization and collagen fibers in leather split, which is the main reason for the reinforcement of leather split mechanical properties.

关 键 词：制革 二层革 甲基丙烯酸正丁酯 原位聚合 互穿网络结构 

分 类 号：TQ31[化学工程—高聚物工业]