文献类型：期刊文献

英文题名：Influence of natural ageing on the flame retardancy and thermal properties of intumescent flame retardant long glass fibre reinforced polypropylene composites

作者：He, Weidi Li, Lingtong Zhou, Dengfeng Chen, Xiaolang Guo, Jianbing

第一作者：He, Weidi

通信作者：Chen, XL[1];Guo, JB[1];Chen, XL[2]

机构：[1]Natl Engn Res Ctr Compounding & Modificat Polymer, Guiyang 550014, Guizhou, Peoples R China;[2]Southwest Jiaotong Univ, Sch Mat Sci & Engn, Key Lab Adv Mat Technol, Minist Educ, Chengdu 610031, Sichuan, Peoples R China;[3]Guizhou Inst Technol, Sch Mat & Met Engn, Guiyang 550003, Peoples R China

第一机构：Natl Engn Res Ctr Compounding & Modificat Polymer, Guiyang 550014, Guizhou, Peoples R China

通信机构：corresponding author), Natl Engn Res Ctr Compounding & Modificat Polymer, Guiyang 550014, Guizhou, Peoples R China;corresponding author), Southwest Jiaotong Univ, Sch Mat Sci & Engn, Key Lab Adv Mat Technol, Minist Educ, Chengdu 610031, Sichuan, Peoples R China.

年份：2018

卷号：58

期号：11

起止页码：2098-2105

外文期刊名：POLYMER ENGINEERING AND SCIENCE

收录：;EI(收录号：20180604751724);Scopus(收录号：2-s2.0-85041350602);WOS:【SCI-EXPANDED(收录号:WOS:000449949600022)】；

基金：Contract grant sponsor: National Natural Science Foundation of China; contract grant numbers: 51602067; 51763002; contract grant sponsor: Guizhou Province Science and Technology; contract grant sponsor: Special Funds of Guizhou Province Outstanding Young Scientists; contract grant number: 2015/26; contract grant sponsor: Program of Application and Industrialization of Scientific and Technological Achievements of Guizhou Province; contract grant number: 2016-4538; contract grant sponsor: High-level Innovative Talents Training Project of Guizhou Province; contract grant numbers: 2015/4039; 2016/5667.

语种：英文

外文关键词：Blending - Degradation - Energy dispersive X ray analysis - Glass fibers - Gravimetric analysis - Mechanical properties - Plastic products - Polymer blends - Reinforced plastics - Reinforcement - Thermodynamic properties - Thermogravimetric analysis - X ray diffraction analysis

摘要：In this work, the composites based on long glass fiber reinforced polypropylene/intumescent flame retardant (LGFPP/IFR) were prepared by melt blending. This article presented an experimental research on the influence of combined environment elements in natural condition on the properties of LGFPP/IFR composites with 0-12 months ageing. The flammability and thermal properties of the composites were investigated by limiting oxygen index (LOI), UL-94 test, cone calorimeter test (CCT), thermal gravimetric analysis (TGA), mechanical properties test and energy dispersive X-ray analysis (EDAX). The LOI values increased from 27.5 to 28.3 in 0-6 months ageing, and then decreased back, however, the TGA curves shift to the lower temperature. The thermal degradation kinetics were analyzed and the apparent active energy (E) of aged and unaged samples were calculated by Flynn-Wall-Ozawa method. The results indicated that much lower E values were obtained after 3-12 months ageing. EDAX data proved that the IFR particles gathered on the surface of samples in natural exposing, by which had some effect on the thermal stability and flame retardancy of the composites. The mechanical properties showed a global decrease in the whole ageing period by matrix degradation and interface debonding under the influence of combined environment elements. POLYM. ENG. SCI., 58:2098-2105, 2018. (c) 2018 Society of Plastics Engineers