淀粉填充硬质聚氨酯泡沫塑料的制备及生物降解性  

Preparation and Biodegradable Properties of Starch Filled Polyurethane Foams

作　　者：赵婷婷[1,2] 王建华[1,2] 梁书恩[2] 田春蓉[2] 贺传兰[2] 

机构地区：[1]西南科技大学材料科学与工程学院,四川绵阳621010 [2]中国工程物理研究院化工材料研究所,四川绵阳621900

出　　处：《塑料》2009年第5期47-49,57,共4页Plastics

基　　金：中国工程物理研究院"双百人才工程"人选自选课题(ZX030703);四川省学术和技术带头人培养资金资助项目

摘　　要：利用模塑成型方法,在聚氨酯泡沫塑料中引入天然高分子淀粉,制备不同淀粉填充量的外观和力学性能良好的聚氨酯泡沫塑料,最大填充量达23.3%,并研究填料用量对聚氨酯泡沫塑料力学性能的影响。研究表明:填料的加入使泡沫压缩性能有一定提高,而冲击性能大幅度下降;土壤掩埋实验表明:填料含量越大,降解时间越长,样品的降解性越好,最大填充量试样降解120d后失重率可达16.09%。Different contents of natural polymer starch were filled in polyurethane foam through molding process. These synthesized polyurethane foams had good appearance and mechanical properties,the largest content of filler reached 23.3 %. Effects of the content of filler on the mechanical properties of polyurethane foams were studied. It was found that the compressive property of foams increased at certain contents of filler, but the impact property sharply decreased with addition of starch filler. The degradability of polyurethane foams was tested with outdoor soil burial and the results showed that the higher content of filler and the longer degradation time, the better degradability of samples was. With the largest filling content, the weight loss of foam sample degraded,reached 16.09 % after 120 days.

关 键 词：聚氨酯泡沫 生物降解 填充 土壤掩埋 淀粉 

分 类 号：TQ328.3[化学工程—合成树脂塑料工业]