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| 淀粉/PVA在自然土壤环境下的生物降解性能研究 | |
| 引用本文： | 周向阳,贾德民,戈明亮,谢东,严志云.淀粉/PVA在自然土壤环境下的生物降解性能研究[J].塑料科技,2011,39(4). |
| 作者姓名： | 周向阳 贾德民 戈明亮 谢东 严志云 |
| 作者单位： | 1. 仲恺农业工程学院化工学院,广东,广州,510225 2. 华南理工大学材料学与工程学院,广东,广州,510640 3. 华南理工大学机械与汽车工程学院,广东,广州,510640 |
| 基金项目： | 广东省高等学校科技创新重点项目 |
| 摘 要： | 将淀粉与聚乙烯(醇PVA进)行共混,研究了共混物在自然土埋环境中的生物降解过程。结果表明:淀粉的加入可促进PVA的微生物降解速度,使淀粉/PVA试样在120d后分解成小碎片,失重率达到67.8%;对降解不同时间的淀粉/PVA(60/40)片材进行DSC和TG测试发现,降解使材料结晶度和热稳定性提高,说明体系的降解是在无定形区开始的;淀粉/PVA试样的降解过程中,淀粉首先分解,然后是PVA的非晶部分,最后才是PVA的结晶部分。 |
| 关 键 词： | 淀粉 聚乙烯醇 生物降解 土埋 |
Research on Biodegradability of Starch/PVA Blend in Soil Burying |
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| Zhou Xiangyang,Jia Demin,Ge Mingliang,Xie Dong,Yan Zhiyun.Research on Biodegradability of Starch/PVA Blend in Soil Burying[J].Plastics Science and Technology,2011,39(4). | |
| Authors: | Zhou Xiangyang Jia Demin Ge Mingliang Xie Dong Yan Zhiyun |
| Affiliation: | Zhou Xiangyang1,Jia Demin2,Ge Mingliang3(1),Xie Dong2,Yan Zhiyun1 1 College of Chemistry and Chemical Engineering,Zhongkai University of Agriculture and Engineering,Guangzhou 510225,China 2 College of Material Science and Engineering,South China University of Technology,Guangzhou 510640,China 3 College of Mechanical and Automotive Engineering,China |
| Abstract: | The thermoplastic starch/polyvinyl alcohol (PVA) blends (60/40) were prepared and biodegradability of blends under natural soil burial environment was studied. The results show that the biodegradation rate of PVA is enhanced with the addition of starch, and the blends are biodegraded into pieces and the mass loss is 67.8% after 120 days. The starch/PVA blends been degraded different time were tested by DSC and TG. The crystallinity and thermal stability of PVA were increased after biodegradation. It implies... |
| Keywords: | Starch PVA Biodegradation Soil burying |
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