The Processing Characteristics and Mechanical Properties of Semi-Prepreg RTM Composites

Abstract:

A novel semi-prepreg resin transfer molding (RTM) process was developed to address difficulties associated with RTM process and to improve the mechanical properties of the resulting composites. Unidirectional semi-prepregs exhibiting relatively good overlay characteristics were prepared via prepolymerization of bismaleimide resin followed by wet winding. The processing characteristics and mechanical properties of composites fabricated via semi-prepreg RTM technology were compared with those of composites produced using a normal-prepreg compression molding process. Experimental results showed that the laminates fabricated by the semi-prepreg RTM process were of better internal quality and had superior mechanical properties as compared with laminates fabricated by the normal-prepreg compression molding process.

• Periodical: Advanced Materials Research (Volume 721)
• Pages: 153-158
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.721.153
• Online since: July 2013
• Authors: Wei Dong Li, Gang Liu, Xiao Lan Hu, Xue Feng An, Xiang Yu Zhong, Ye Li, Xiao Su Yi
• Keywords: Mechanical Property, Preforming, Prepreg, RTM

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