摘要
将经有机化处理的纳米钛合金粉体与聚丙烯通过熔融共混制得了聚丙烯/纳米钛合金复合材料;利用XRD对聚丙烯及其复合材料的结晶形态以及复合材料中钛合金粉体的粒径进行了分析;研究了钛合金粉体对复合材料拉伸模量、拉伸强度、断裂伸长率、冲击强度及屈服强度的影响。结果显示,纳米钛合金粉体的加入有利于聚丙烯基体形成具有良好冲击强度的β型晶体;在钛合金粉体用量适当时,复合材料的拉伸模量、拉伸强度、断裂伸长率和冲击强度均有所提高,其中冲击强度和断裂伸长率提高尤其显著。
PP/nano-meter Titanium （Ti）-alloy composite was prepared by means of melt blending of PP with organically modified nano-Ti-alloy. The crystallization behavior of PP and the composite, and the particle diameter of the Ti-alloy particles in the composites were charaterized by means of XRD. The effect of the nano-meter Ti-alloy particle on the tensile modulus, tensile strength, elongation at break, notched impact strength and yield strength of the compositie was also studied. The result indicated that the use of the nano-meter Ti-alloy promoted the formation of β-type crystal of PP, which led to an improvement of the impact strength of PP matrix; a very impressive increase of the notched impact strength and elongation at break was observed, while other mechanical properties, such as tensile modulus and tensile strength of the compositie were also significantly improved at a proper content of the nano-meter Ti-alloy.
出处
《塑料工业》
CAS
CSCD
北大核心
2006年第11期39-41,共3页
China Plastics Industry
基金
湖南师范大学潇湘学者重点支持项目(化050613)
