文献类型：期刊文献

英文题名：Mechanical performance and flame retardancy of polypropylene composites containing zeolite and multiwalled carbon nanotubes

作者：Zhao, Qing[1];Hu, Yanhong[2];Wang, Xingyi[1]

机构：[1]E China Univ Sci & Technol, Res Inst Ind Catalysis, Adv Mat Lab, Shanghai 200237, Peoples R China;[2]E China Univ Sci & Technol, Sch Mat Sci & Engn, Key Lab Specially Funct Polymers & Related Techno, Minist Educ, Shanghai 200237, Peoples R China

年份：2016

卷号：133

期号：3

外文期刊名：JOURNAL OF APPLIED POLYMER SCIENCE

收录：;EI(收录号：20154301449095);WOS:【SCI-EXPANDED(收录号:WOS:000363676200009)】；

基金：This research was supported by the Development Program for the National Natural Science Foundation of China (contract grant numbers 21277047 and 21307033).

语种：英文

外文关键词：flame retardance; mechanical properties; thermal properties

摘要：Intumescent-flame-retarded polypropylene (PP-IFR) composites were prepared by the incorporation of methyl hydrogen siloxane treated ammonium polyphosphate and dipentaerythritol in a twin-screw extruder. The effects of zeolite (Z), multiwalled carbon nanotubes (CNTs), and maleic anhydride grafted polypropylene on the flame retardancy, mechanical properties, and thermal stability of PP-IFR were investigated. The addition of Z and CNT promoted the flame retardancy of PP-IFR, and the highest limited oxygen index was 35.6%, obtained on PP-M-IFR-2-Z, for which the heat-release rate, total heat release, and smoke production rate based on cone calorimetry analyses decreased by 45.0, 51.0, and 66.3%, respectively, in comparison with those values of the PP-IFR composites. Additionally, scanning electron microscopy analyses showed that there was a good interface interaction between the polypropylene matrix and additives. The flexural, tensile, and impact strengths of the PP-IFR composites were improved significantly with the incorporation of CNT. (C) 2015 Wiley Periodicals, Inc.