摘要
稳定降解基料粉料质量,添加过氧化物,将聚丙烯熔体流动速率(MFR)由9～11 g/10 min提高到30～40 g/10 min,且弯曲模量在900 MPa以上,拉伸屈服强度在18 MPa以上,冲击强度在14 kJ/m2以上。调整挤压机工艺参数,满足了高MFR聚丙烯的造粒要求。
The polypropylene with melt flow rate of 30~36 g/10 min increased from 9-11 g/10 min,flexural modulus over 900 MPa,tensile strength at yield of above 18 MPa and impact strength higher than 14 kJ/m2 was prepared through stabilizing quality of the degradable base resin powder and augmenting the peroxide content.The requirements for pelleting of the polypropylene having high melt flow rate were satisfied by properly adjusting the parameters of the extruder.
出处
《合成树脂及塑料》
CAS
北大核心
2012年第4期51-54,共4页
China Synthetic Resin and Plastics
关键词
聚丙烯
乙丙共聚物
熔体流动速率
可控流变
弯曲模量
polypropylene
ethylene-propylene copolymer
melt flow rate
controllable rheology
flexural modulus
