剑麻纤维表面处理对热塑性木薯淀粉结构与性能的影响  

Effect of Surface Treatment of Sisal Fiber on Structure and Properties of Thermoplastic Tapioca Starch

作　　者：熊君妹 刘钰馨 莫羡忠 杨芳 庞锦英 李建鸣 XIONG Jun-mei;LIU Yu-xin;MO Xian-zhong;YANG Fang;PANG Jin- ying;LI Jian-ming(Guangxi Key Laboratory of Natural Polymer Chemistry and Physics,College of Chemistry and Materials,Nanning Normal University,Nanning 530001,China)

机构地区：[1]南宁师范大学化学与材料学院广西天然高分子化学与物理重点实验室

出　　处：《塑料工业》2019年第5期58-61,共4页China Plastics Industry

基　　金：国家自然科学基金项目(51663002);广西自然科学基金项目(2017GXNSFAA198083);广西高校中青年教师基础能力提升项目(KY2016YB277)

摘　　要：以甘油为增塑剂,采用熔融共混法制备热塑性木薯淀粉/剑麻纤维(TPS/SF)复合材料,研究碱处理和3-氨丙基三乙氧基硅烷(KH550)两种不同表面处理方法处理剑麻纤维对TPS结构与性能的影响。结果表明,添加碱处理剑麻的TPS/SF复合材料塑化性能较好,更容易进行加工;在力学性能、回生行为、热性能和结构方面,添加KH550处理的剑麻纤维TPS/SF复合材料拉伸强度和弹性模量较高,能更好抑制TPS回生,且热稳定性能更好,结构更稳定、更疏水。Thermoplastic tapioca starch/sisal fiber( TPS/SF) composites were prepared by melt blending with glycerol as plasticizer. The effects of two different surface treatments methods,which are alkali and KH550,on the structure and properties of TPS were studied. The results show that the TPS/SF composite containing alkali treated surface has better plasticizing performance and is easier to be processed. However,for the mechanical properties, retrogradation, thermal properties and structure, the tensile strength and elastic modulus of TPS containing surface treatment by KH550 are higher than that of alkali,which could better inhibit the retrogradation of TPS,and has better thermal stability,more stable structure and more hydrophobic property.

关 键 词：热塑性木薯淀粉 剑麻纤维 表面处理 结构 性能 

分 类 号：TQ321.5[化学工程—合成树脂塑料工业]