【摘要】 本文研究了用化学降解法降低本体聚合聚丙烯的分子量,以改进加工流动性;并用共混改性方法改善降解后的聚丙烯的低温抗冲性能,得到室温和低温力学性能好而加工流动性也好的改性聚丙烯树脂。更多还原

【Abstract】 The molecular weight of bulk polymer- ized PP was reduced by chemical degrada-tion to improve the melt flowability. Theimpact property of degraded PP had beenimproved by blending with a small amountof selected polymers. The mechanical pro-perty and flowability of the modified PPwere also improved.更多还原