Preparation and properties of nano SiO2 core-shell structured additives and their nanocomposite with polypropylene

KE Yangchuan; SUN Mingzhuo; SONG Yanxin; YANG GuangFu

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Preparation and properties of nano SiO2 core-shell structured additives and their nanocomposite with polypropylene

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To improve the performance of traditional nucleation additives and their compatibility with other additives,as well as to solve complex problems in practical applications,SiO2 precursors were reactively grafted in situ with the symmetrical hydroxyl groups of the nucleation agents.With this approach,the dissymmetrical part of the nucleation agents plays an important role.As a result,the prepared composite additive-thenanoparticle precursor (NPP0)-producesexcellent results.The NPP0-PP composite has a transparency of over 93%,haze lower than 15%,and a heat distortion temperature (HDT) of 142℃,which is more than the 110℃ of the pure PP matrix.In addition,it maintains over 90% of the mechanical properties with a deformation coefficient less than 1%.This indicates a strong nanoeffect.

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来源
《中国高等学校学术文摘·化学工程》 |2007年第1期|76-80|共5页
作者
KE Yangchuan; SUN Mingzhuo; SONG Yanxin; YANG GuangFu;
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作者单位

State Key Lab of Heavy Oil Processing,University of Petroleum,Beijing 102249,China;

State Key Lab of Heavy Oil Processing,University of Petroleum,Beijing 102249,China;

State Key Lab of Heavy Oil Processing,University of Petroleum,Beijing 102249,China;

State Key Lab of Heavy Oil Processing,University of Petroleum,Beijing 102249,China;

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原文格式 PDF
正文语种 chi
中图分类化学;
关键词
core-shell nano particles; additives; polypropylene;

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Preparation and properties of nano SiO2 core-shell structured additives and their nanocomposite with polypropylene

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