空心微珠填充聚丙烯复合材料的研究

研究了空心微珠含量、粒径以及改性剂对聚丙烯复合材料性能的影响。研究结果表明，当空心微珠填充量在0－30％（质量，下同）之间时，空心微珠／聚丙烯复合材料的常温和低温下的缺口冲击强度、拉伸性能、弯曲性能都显著提高，当加入改性剂时，提高得更加显著。当空心微珠含量为20％时材料的性能提高到实验中的最大值，弹性模量提高了83％。同时，通过材料的DSC轨迹分析研究了材料的热性能，并进行了扫描电镜分析。空心微珠填充聚丙烯不仅能提高聚丙烯材料的力学性能和热性能，而且可以降低聚丙烯复合材料的成本。

Research of Cenosphere Filled Polypropylene Composite

As the filler of polypropylene(PP), effect of the content, particle size of hollow beads and modifiers on mechanical properties of hollow beads/PP composite is studied. Results show that notch impact strength at atmospheric and low temperature, tensile and flexible strength of the system are increased obviously when the content is 0-30 %, and further increased with the addition of the coupling agent. When the content of the beads is 20 %,the property increase of the system reached the best value and the modulus of the system is increased by 83 %. Thermal performance of the system is analyzed by DSC and SEM. It is found that hollow beads not only increase the mechanical properties of PP,but also decrease the cost of the system.