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《Engineering Plastics Application》 2018-11
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Preparation and Properties of Polyimide/Carbon Nanotubes Composites

Xing Liangchen;Chen Xiaoqi;Zhou Haijun;Zhou Mengmeng;Xiao Jijun;Li Yantao;Hebei University of Science and Technology;Hebei Research Institute of Energy Sources;  
Four kinds of multi-walled carbon nanotubes(MWNTs),such as carboxyl multi-walled carbon nanotubes and multi-walled carbon nanotubes were selected as reinforced materials,the MWNTs were dispersed in the solvent by ultrasonic dispersion,and then 3,3′4,4′-biphenyltetracarboxylic dianhydride(BPDA),pyromellitic dianhydride(PMDA) and 4,4′-diaminodiphenyl ether(ODA) were added to obtain a carbon nanotube/polyimide(PI/MWNTs) molding powder via in-situ polymerization,and variouscarbon nanotubes/polyimides(PI/MWNTs) were prepared via a hot-press technology. The molecular structure,thermal stabil-ity and mechanical properties of the composites were characterized by Fourier transform infrared spectrometer,thermogravimetricanalyzer,universal tensile testing machine,and sliding friction tester. The results show that the tensile strength,elongation at breakand friction coef?cient of MWNTs/PI composites reinforcied by carboxylated carbon nanotubes with the length of 10–30 μm are108.85 MPa and 4.5%,respectively,and compared with pure PI,those of MWNTs/PI composites are increased by 26%,23.6%and the friction coef?cient is 0.24 and is decreased by 25%,respectively. The mechanical properties and the friction coef?cient aresigni?cantly increased.
【CateGory Index】: TB332
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【Citations】
Chinese Journal Full-text Database 2 Hits
1 ZHANG Ming-yan;CUI Yu;WU Qiong;LIU Chang;ZHANG Xian-fang;GUO Chang;Harbin University of Science and Technology,Department of Material Science and Technology;Heilongjiang Province Dielectric Engineering State Key Laboratory;Bei Hua University;;Mechanical properties of polyimide/multi-walled carbon nanotubes hybrid film[J];功能材料;2014-24
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【Co-citations】
Chinese Journal Full-text Database 1 Hits
1 YANG Maosheng,LIU Xiubo,HE Xiangming,WANG Mingdi (School of Mechanical and Electric Engineering,Soochow University,Suzhou 215021);Research Development of Solid Self-lubricant Coatings[J];材料导报;2011-S1
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