玻璃微珠含量及粒径对填充聚丙烯复合材料动态力学性能的影响

应用动态力学分析仪，在－１５０￣１０１０℃的温度范围内，考察了玻璃微珠填充聚丙烯中微珠的含量及其粒径对复合材料动态力学性能的影响。结果表明，室浊下的贮能模量和 损耗模量随着微珠体积分数Φｆ的增加而呈非线性形式增大；在相同条件下，最大粒径微珠填充体系的动态模量高于较小粒径微珠填充体系；微珠含量和粒径对复合材料的阻尼的影响不明显；在Φｆ５％￣１５％范围内，玻璃化转变温度随着Φｆ的增加而增大，然后随之下

Effects of Glass Bead Content and Diameter on the Dynamic Mechanical Properties of Filled Polypropylene Composites

The effects of the filler content and diameter on the dynamic mechanical properties of glass bead filled polypropylene (PP) composites have been investigated in a temperature range from -150 to 100,by using a dynamic mechanical analyzerThe results show that the storage and loss moduli at room temperature increase nonlinearly with increasing the volume fraction of glass beads, WT5BZf,at the same conditions the dynamic moduli of the PP filled with big glass beads are higher than those of smaller glass bead filled systems;influence of glass bead content and diameter on the mechanical damping of the composite is insignificant;at BX f=5%15% glass transition temperature increases with increase in f,then decreases;dynamic complex viscosity linearly increases with increasing f