| 改性淀粉/PVA生物降解材料性能的研究 |
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| 引用本文： | 张蒨,吴张永,陆冲,程树军,周达飞.改性淀粉/PVA生物降解材料性能的研究[J].功能高分子学报,2004,17(2):272-276. |
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| 作者姓名： | 张蒨 吴张永 陆冲 程树军 周达飞 |
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| 作者单位： | 华东理工大学材料科学与工程学院,上海,200237;华东理工大学材料科学与工程学院,上海,200237;华东理工大学材料科学与工程学院,上海,200237;华东理工大学材料科学与工程学院,上海,200237;华东理工大学材料科学与工程学院,上海,200237 |
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| 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％。
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| 关 键 词： | 接枝淀粉 马来酸酐 聚乙烯醇 生物降解 力学性能 |
| 文章编号： | 1008-9357(2004)02-0272-05 |
| 修稿时间： | 2003年9月22日 |
Study on the Blends of Modified Starch/PVA |
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| ZHANG Qian,WU Zhang-yong,LU Chong,CHENG Shn-jun,ZHOU Da-fei.Study on the Blends of Modified Starch/PVA[J].Journal of Functional Polymers,2004,17(2):272-276. |
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| Authors: | ZHANG Qian WU Zhang-yong LU Chong CHENG Shn-jun ZHOU Da-fei |
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| Abstract: | 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%. |
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| Keywords: | graft-starch maleic anhydride PVA biodegradation mechnical-properties |
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