文献类型：期刊文献

中文题名：改性淀粉/PVA生物降解材料性能的研究

英文题名：Study on the Blends of Modified Starch/PVA

作者：张蒨[1];吴张永[1];陆冲[1];程树军[1];周达飞[1]

机构：[1]华东理工大学材料科学与工程学院,上海200237

年份：2004

卷号：17

期号：2

起止页码：272

中文期刊名：功能高分子学报

外文期刊名：Journal of Functional Polymers

收录：CSTPCD;;CSCD:【CSCD2011_2012】；

语种：中文

中文关键词：接枝淀粉;马来酸酐;聚乙烯醇;生物降解塑料;力学性能

外文关键词：graft-starch; maleic anhydride; PVA; biodegradation; mechnical-properties

摘要：以BPO为引发剂、正庚烷为溶剂在66℃下制得马来酸酐接枝淀粉。将其与聚乙烯醇(PVA)、增塑剂及加工助剂等于HAAKE密炼机中共混,制备了可生物降解热塑性淀粉塑料。研究了接枝改性淀粉/PVA共混物的力学性能、生物降解性能及热性能等,并用SEM研究了共混物的微观形态。结果表明接枝改性淀粉/PVA共混物拉伸强度为27.57Mpa。60d失重率达65.1％。
Maleic anhydride-g-starch copolymer was synthesized by graft copolymerization of starch with maleic anhydride using BPO as initiator and heptane as reaction medium. The blends of maleie anhydride-g-starch and PVA were prepared by the HAAKE. Using X-ray diffraction and SEM analyses , the changes in starch granular and crystal structure after internal mixing were studied. The biedegradation behavior of the blends was studied through solid burial . The results show that when the mass ratio of starch/graft starch/PVA is 10/15/25 ,the tensile strength of blends is 27.57 Mpa. After buried 2 months the mass loss of starch-g-maleic anhydride/PVA is 65.1%.