石油化工2011，Vol.40Issue(6)：608-613,6.
基于α/β复合成核剂调控等规聚丙烯刚性及韧性规律的研究
Adjustment of Stiffness and Toughness of Isotactic Polypropylene Based on α/β Compound Nucleating Agents
摘要
Abstract
Effects of NA40/NABW compounded nucleating agents(addition amount(w) 0. 2% ) with different compounded ratios on the mechanical properties of isotactic polypropylene (iPP) were investigated with NA40 as a nucleating agent and NABW as βnucleating agent. It was found that stiffness and toughness of iPP could be adjusted and enhanced simultaneously by changing the ratio of α and β nucleating agents. Compared to the others, the absolute value of difference of crystallizationpeak temperature between two type nucleating agents (△TCp αβ) at the optimal compounded ratio was the smallest. According to this, a new method to determine the optimal compounded ratio of the compounded nucleating agents was developed, which was to choose the compounded ratio with minimized △TCp αβ absolute value as the optimal one. NA40/HHPA-Ba, NA40/PA-03 compounded nucleating agents were chosen to prove that the method was also applicable to other compounded nucleating agents.关键词
等规聚丙烯/成核剂/α/β复合/结晶峰值温度Key words
isotactic polypropylene/nucleating agent/α/β compound/crystallization peak temperature分类
化学工程引用本文复制引用
石尧麒,辛忠..基于α/β复合成核剂调控等规聚丙烯刚性及韧性规律的研究[J].石油化工,2011,40(6):608-613,6.基金项目
国家自然科学基金项目(20876042) （20876042）
上海市优秀学科带头人计划项目(XD1401500). （XD1401500）
