期刊
COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING
卷 55, 期 -, 页码 161-168出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.compositesa.2013.08.014
关键词
Particle-reinforcement; Polymer-matrix composites (PMCs); Mechanical properties; Thermal properties
资金
- Natural Science Foundation of Hubei Province, Hubei, China [2008CDB276]
Novel hyperbranched polyimides/attapulgite (HBPI/AT) nanocomposites were successfully synthesized by in situ polymerization. HBPI derived from novel 2,4,6-tri[3-(4-aminophenoxy)phenyl]pyridine (TAPP) and 2,2-bis[4-(3,4-dicarboxyphenoxy)phenyl]propane dianhydride (BPADA). 4,4'-diphenylmethane diisocyanate (MDI) modified AT copolymerized with HBPI and the nanocomposites formed multilinked network. Chemical structure, morphology, thermal behavior, and mechanical properties of nanocomposites were investigated by Fourier transform infrared spectroscopy (FTIR), scanning electron microscope (SEM), thermal gravimetric analysis (TGA), dynamic mechanical analysis (DMA), and tensile testing et.al. Results indicated that modified AT was homogeneously dispersed in matrix and resulted in an improvement of thermal stability, mechanical properties and water resistance of HBPI/AT nanocomposites. (C) 2013 Elsevier Ltd. All rights reserved.
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