聚丙烯的高性能化研究

研究了玻璃纤维、线型低密度聚乙烯(LLDPE)、三元乙丙橡胶(EPDM)对聚丙烯(PP)流变性能、力学性能、热性能和硬度的影响。结果表明:玻璃纤维的加入使PP的硬度及拉伸强度增大,热变形温度提高;LLDPE与EPDM使PP的冲击强度提高;玻璃纤维、LLDPE、EPDM复配可综合提高PP的力学性能、硬度及热变形温度。

Study on Improving the Properties of Polypropylene

The effects of glass fiber (GF), linear low density polyethylene (LLDPE) and ethylene-propylene-diene mischpolymer (EPDM) on the rheological property, mechanical property, thermal property and hardness of polypropylene (PP) were studied. The results show that: with the addition of GF, the tensile strength, hardness and thermal deformation temperature increase; with the addition of LLDPE and EPDM, the impact strength of PP increases; the mechanical property, hardness and thermal deformation temperature of PP increase after adding the compound of GF, LLDPE and EPDM.