Paper Title:

Improving the Compression Strength after Impact of RTM Composites by Interlaminar Thermoplastic Nonwoven Fabric

Periodical Applied Mechanics and Materials (Volumes 182 - 183)
Main Theme Applied Mechanics and Mechatronics Automation
Edited by Huang Xianghong, Huang Xinyou, Mao Hongkui and Yin Zhixi
Pages 12-16
DOI 10.4028/www.scientific.net/AMM.182-183.12
Citation Peng Zhang et al., 2012, Applied Mechanics and Materials, 182-183, 12
Online since June, 2012
Authors Peng Zhang, Gang Liu, Xiao Lan Hu, Wen Ming Zhao, Xiao Su Yi
Keywords Composite, Interlaminar Properties, Interlaminar Toughen, Nonwoven Fabric, RTM
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Abstract

Based on the “ex-situ” toughening concept, thermoplastic nylon (PA) nonwoven fabric with high porosity was chosen as the toughening layer, and the interlaminar toughened composites were fabricated via RTM process. Compression strength after impact (CAI) properties were investigated as well as the toughening mechanism. The results indicated that there is no bicontinuous phase structures formed by reaction-induced phase decomposition and inversion. The PA nonwoven fabrics still kept the original structure in composites interlaminar, and formed a macroscopical bicontinuous structure with the matrix resin, which also showed remarkable toughening effect. The CAI value increased from 212MPa to 281MPa.