碳酸钙增强聚氨酯泡沫塑料的形态与性能  

Morphology and Properties of CaCO_3 Reinforced Polyurethane Foam

作　　者：芦艾[1] 黄锐[1] 王建华[2] 周秋明[2] 徐涛[2] 

机构地区：[1]四川大学高分子材料科学与工程系,四川成都610065 [2]中国工程物理研究院化工材料研究所,四川绵阳621900

出　　处：《中国塑料》2001年第4期32-35,共4页China Plastics

基　　金：国家自然科学基金!重点项目 ( 2 943 4 0 10 );中国工程物理研究院科学基金! ( 2 0 0 0 3 2 4)联合资助

摘　　要：采用超声辐照的方法 ,在聚氨酯反应原液体系中对微米级碳酸钙粉体进行了分散 ,然后反应成型得到增强聚氨酯泡沫塑料。用激光共聚焦扫描显微镜对其结构进行了研究。力学性能测试结果表明 ,在微米碳酸钙含量适当时 ,可以提高硬质聚氨酯泡沫塑料的压缩强度和模量 ,而不会显著降低材料的冲击强度。Reinforced polyurethane foam with micron CaCO 3 particles which were dispersed directly in reactants (PAPI or polyol) by ultrasonic radiation was prepared. Laser confocus scanning microscope was employed to observe structures of CaCO 3 filled polyurethane foam. Results of mechanical test show that micron CaCO 3 particles in proper content can effectively enhance the compress strength and modulus of rigid polyurethane foam while do not distinctly reduce its impact strength.

关 键 词：增强聚氨酯泡沫塑料 碳酸钙 超声辐照 激光共聚焦扫描显微镜 

分 类 号：TQ328[化学工程—合成树脂塑料工业]