热塑性醋酸酯淀粉改性聚丁二酸丁二醇酯制备生物降解高分子材料的研究  

Preparation of biodegradability plastics of poly(butylenes succinate) modified with thermoplastic acetate starch

作　　者：谢刚[1] 马浩翔[1] 张蕾[1] 王百合[1] 

机构地区：[1]黑龙江大学化学化工与材料学院功能高分子重点实验室,哈尔滨150080

出　　处：《黑龙江大学自然科学学报》2012年第2期229-234,共6页Journal of Natural Science of Heilongjiang University

基　　金：黑龙江省教育厅科学技术面上资助项目(12511378)

摘　　要：利用二甲基亚砜(DMSO)较强的分子缔合作用改善了醋酸酯淀粉的可塑性,形成了热塑性淀粉(TPS),然后应用TPS改性聚丁二酸丁二醇酯(PBS)制备一种新型的生物降解高分子材料。通过傅立叶红外光谱分析、扫描电子显微镜分析、力学性能测试和生物降解性能测试,考察了TPS对PBS的力学性能和降解性能的影响。实验表明:TPS质量百分含量为20%、DMSO含量为30%、偶联剂含量为1%时,降解材料的力学性能最好。TPS含量30%的降解材料经3个月的时间,降解失重率可达66.88%,达到了降解目的。Dimethyl sulfoxide（DMSO）,bem the thermoplastic starch（TPS）,and then TPS is applied to modify poly-1cause of its strong molecular associating cooperation,is used to improve acetate starch plasticity to for,4-butylene succinate（PBS） to prepare a new type of biodegradable polymer materials.The studied showed that how the TPS influences PBS on its mechanical property and degradability via infrared spectrum,SEM,mechanical property test and biodegradability test.The best mechanism performance of material was modified by 20% TPS with 30% of DMSO and 1% of coupling agent.The weight loss rate of degradable material with 30% content of TPS was 66.88% after three months.The purpose of degradation was realized.

关 键 词：聚丁二酸丁二醇酯 醋酸酯淀粉 二甲基亚砜 偶联剂 生物降解 

分 类 号：O636.12[理学—高分子化学]