文献类型：期刊文献

英文题名：Study on the reinforced and toughened PP blends with the rigid nano-particles and the elastic rubber-particles

作者：Wu, W; Xu, ZD

机构：[1]E China Univ Sci & Technol, Inst Mat Engn, Shanghai 200237, Peoples R China;[2]Univ Erlangen Nurnberg, Inst Polymer Technol, D-91058 Erlangen, Germany

年份：2000

期号：1

起止页码：99

外文期刊名：ACTA POLYMERICA SINICA

收录：;WOS:【SCI-EXPANDED(收录号:WOS:000085450900021)】；

语种：英文

外文关键词：polypropylene; nano-particle; rigid-particle; elastic-particle; reinforcing; toughening

摘要：The reinforcing and toughening effects of PP blends were studied by the determination of the mechanical properties, dynamic mechanical analysis, DSC, as well as morphology and structures of the cross-sections, which were reinforced by nano-SiO2 rigid particles and toughened by EPDM elastic particles. It was shown that, the above two particles dispersed in PP matrix can increase not only the tougheness but also the strength and the modulus of PP at a great extent. As the blend ratio of PP/nano-SiO2/EPDM is 80/3/20, the two particles have the concerted toughening effect. Nano-SiO2 particles can also increase the crystallization temprature and crystallization rate of PP and decrease its size of spherulite. Nano-SiO2 particles are dispersed in the PP continuous phase in the form of conglomerates which are made up of 6 similar to 7 nano-SiO2 particles in average and have a good combination strength with PP matrix. The comprehensive properties of the PP/nano-SiO2/EPDM can match with the engineering plastics.