【摘要】 研究了注射压力和模温对聚丙烯平板微结构、拉伸强度和断面形态的影响．结果表明：注射压力和模温对聚丙烯平板的密度、结晶度、取向程度、取向分布、皮层厚度和拉伸强度等均有影响，对拉伸断面形态影响较小．更多还原

【Abstract】 The effects or the mold temperature and the injection pressure on the microstructure, the tensile strength and fracture morphology or polypropylene plaques have beenstudied. It is shown that the effects of the mold temperature and the injection pressure onthe density. Crystallinity, skin thickness, the degree or orientation and tensile strength arelarger than the effects an the tensile fracture morphology.更多还原