【摘要】 采用双螺杆共混方法研究CaCO₃（碳酸钙）改性PP-SEBS（苯乙烯-乙烯/丁烯-苯乙烯共聚物）复合材料的力学性能.并研究了相容剂对PP-SEBS/CaCO₃的结构与性能的影响。结果表明,当PP-SEBS 65份、相容刑5份、CaCO₃30份时,弹性体的力学性能最佳。扫描电镜（SEM）分析显示,加入相容剂后,CaCO₃的粒子被PP-SEBS基体包覆,两相间粘合力增强,CaCO₃与SEBS之间的浸澜有效改善,共混物的力学性能提高。更多还原

【Abstract】 The mechanical properties of composite of PP-SEBS（styrene-ethylene/butyl- ene-styrene）compounds after CaCO₃ modification were studied via using twin-screw extru- der. The effects of compatibilizer agent on the structure and properties of the PP-SEBS/Ca- CO₃ were investigated. The results indicate that when 65 phr of PP-SEBS, 5 phr of compati- bilizer, 30 phr of CaCO₃ are selected, the mechanical properties of the compounds are the most excellent. The results of SEM demonstrate that after adding the compatibilizer, the particles of CaCO₃ are wrapped by PP-SEBS matrix and the adhesion between the two phases is improved obviously, and the adhesion between CaCO₃ and SEBS is effectively improved, and mechanical properties of blend are improved.更多还原