天然纤维复合聚乙烯醇缩甲醛可降解泡沫材料制备  

PREPARATION AND PROPERTIES OF THE DEGRADABLE CELLULAR FOAM WITH NATURAL FIBER AND POLYVINYL FORMAL

作　　者：闫冰[1] 曹德榕[1] 欧义芳[1] 

机构地区：[1]中科院广州化学研究所,广东广州510650

出　　处：《高分子材料科学与工程》2005年第4期295-299,共5页Polymer Materials Science & Engineering

基　　金：中国科学院知识创新工程重要方向项目(KJCXZ-SW-04)

摘　　要：通过正交实验法探讨了以天然纤维作为骨架材料,聚乙烯醇为泡体,用甲醛交联制备可降解泡沫材料的最佳反应条件,并研究了不同因素对于材料的缩醛化反应动力学的影响,着重探讨了天然纤维的存在对于材料缩醛化程度及其它性能的影响。土壤实验表明,材料在9周内质量损失近50%,具有良好的生物可降解性。A degradable cellular foam, the composite with polyvinyl alcohol (PVA) as main body, natural fiber as framework, and formaldehyde as coherent agent has been prepared. The optimal process for the preparation of degradable cellular foam with natural fiber and polyvinyl formal has been investigated. The relationship between the mechanical properties of degradable cellular foam and the influence factors, such as reaction time, ratio of starting materials, were studied. The result of burying test in soil shows that this material is nearly half degraded in 9 weeks.

关 键 词：天然纤维 聚乙烯醇缩甲醛 泡沫材料 

分 类 号：TB332[一般工业技术—材料科学与工程]