纳米CaCO_3/PU弹性体复合材料力学性能研究  

Mechanical properties of Nano-CaCO_3/PU elastomer composites

作　　者：蔺文峰 Lin Wenfeng(Xi＇an Sansen Garden Landscape Construction Co.,Ltd.,Xi＇an 710043,Shaanxi,China)

机构地区：[1]西安三森园林景观建设有限公司,陕西西安710043

出　　处：《橡塑技术与装备》2018年第16期15-20,共6页China Rubber/Plastics Technology and Equipment

摘　　要：以甲苯-2、4-二异氰酸酯(TDI)、聚四氢呋喃醚二醇-1000(PTMG)以及3,3-二氯-4,4-二苯基甲烷二胺(MOCA)为合成原料,并采用预聚法合成浇注聚氨酯弹性体。选用纳米Ca CO_3粒子颗粒对聚氨酯弹性体改性研究,并且以微米级Si_3N_4粒子作为参照组,对两类复合材料试样进行了机械性能和磨损性能的测试。实验结果表明:纳米Ca CO_3粒子改性纯PU弹性体的复合材料力学性能有一定的提高,并且纳米Ca CO_3粒子质量分数达到1%时,其力学性能最佳;纳米Ca CO_3/PU弹性体复合材料综合力学性能和磨损性能要比微米Si_3N_4/PU弹性体复合材料好。In this paper,2,4-tolylene diisocyanate（TDI）,poly-tetramethylene-ether-glycol-1000（PTMG）and 4,4＇-methylenebis（2-chloroaniline）（MOCA）were synthesized and the polyurethane elastomer was synthesized by prepolymerization.The nano Ca CO_3 particle particles were used to modify the polyurethane elastomer,and the micrometer Si_3N_4 particles were used as the reference group to test the mechanical properties and wear properties of the two kinds of composite materials.The experimental results showed that：The mechanical properties of the composites of pure PU elastomer modifi ed by nano Ca CO_3 particles were improved,and the mechanical properties of nano Ca CO_3 particles were the best when the mass fraction of nano Ca CO_3 particles was up to 1%;The mechanical properties and wear properties of nano Ca CO_3/PU elastomer composites were better than those of micron Si_3N_4/PU elastomer composites.

关 键 词：聚氨酯 纳米碳酸钙 力学性能 分散性 表面改性 

分 类 号：TQ132.32[化学工程—无机化工] TQ334