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纳米刚性微粒与橡胶弹性微粒同时增强增韧聚丙烯的研究 预览 被引量:109

STUDY ON THE REINFORCED AND TOUGHENED PP BLENDS WITH THE RIGID NANO PARTICLES AND THE ELASTIC RUBBER\|PARTICLES
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摘要 通过力学性能测试、动态力学试验、DSC分析以及材料断面形貌与结构分析等手段,对以纳米二氧化硅(SiO2)为刚性微粒、以三元乙丙橡胶(EPDM)为弹性微粒组成的聚 丙烯(PP)/纳米SiO2/EPDM的同时增强增韧效果进行了研究。结果显示,上述两种微粒可同时大幅度提高PP的韧性、强度和模量,当PP/纳米SiO2/EPDM为 80/3/20时,两种微粒体现较明显的协同增韧效应。纳米SiO2可提高PP的结晶 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\|SiO\-2 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\|SiO\-2/EPDM is 80/3/20, the two particles have the concerted toughening effect. Nano\|SiO\-2 particles can also increase the crystallization temprature and crystallization rate of PP and decrease its size of spherulite. Nano\|SiO\-2 particles are dispersed in the PP continuous phase in the form of conglomerates which are made up of 6~7 nano\|SiO\-2 particles in average and have a good combination strength with PP matrix. The comprehensive properties of the PP/nano\|SiO\-2/EPDM can match with the engineering plastics.
作者 吴唯 徐种德 WU Wei\+\{1,2\}, XU Zhongde\+1 ( 1Institute of Material Engineering,East China University of Science and Technology,Shanghai\ 200237) ( 2Institute of Polymer Technology,University Erlangen\|Nürnberg,91058 Erlangen,Germany)
出处 《高分子学报》 SCIE CAS 北大核心 2000年第1期 99-104,共6页 Acta Polymerica Sinica
关键词 聚丙烯 橡胶 增强 增韧 纳米微粒 塑料改性 Polypropylene, Nano\|particle, Rigid\|particle, Elastic\|particle, Reinforcing, Toughening
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