竹粉对微发泡聚丙烯发泡行为的影响  

Effect of Bamboo Flour on Foaming Behavior of Polypropylene Materials

作　　者：赵武学[1,2] 何力[2] 朱艳[2] 贾仕奎[2] 龚维[2,3] 

机构地区：[1]贵州大学化学与化工学院,贵州贵阳550003 [2]国家复合改性聚合物材料工程技术研究中心,贵州贵阳550014 [3]贵州师范大学材料与建筑工程学院,贵州贵阳550014

出　　处：《现代塑料加工应用》2010年第4期49-51,共3页Modern Plastics Processing and Applications

基　　金：国家重点基础研究发展计划(973)资助项目(2007CB616912)

摘　　要：通过改性的竹粉,以不同含量加入到聚丙烯中,在二次开模条件下制备微发泡PP/竹粉复合材料,分析了不同含量的竹粉对微发泡复合材料发泡行为的影响规律。结果表明:随竹粉含量的增加,泡孔平均直径逐渐减小,泡孔密度逐渐增加,竹粉质量分数为7%时泡孔平均直径最小为22.3μm,泡孔密度达到2.92×107个/cm3,具有理想的发泡效果。The modified basic bamboo flour was added into polypropylene with different content. The microcellular foam PP/bamboo flour composites was made under the condition of twiceopen mold. The effect rule of the content of bamboo flour on foaming behavior of microcellular foam composites was analyzed. The results show that with the increase of bamboo flour content, cell diameter decreases gradually, cell density increases gradually. The minimum of average cell diameter is 22.3 μm and cell density is 2.92×10^7 months/cm^3/ when the content of bamboo flour is 7%. There is an ideal foaming effects in microcellular foam composites.

关 键 词：聚丙烯 竹粉 微发泡 发泡行为 

分 类 号：TQ328[化学工程—合成树脂塑料工业]