Reduction of void content of vacuum-assisted resin transfer molded composites by infusion pressure control

Dingding Chen, Kazuo Arakawa, Changheng Xu

研究成果: Contribution to journalArticle査読

16 被引用数 (Scopus)

抄録

Vacuum-assisted resin transfer molding is a promising technique for making large and complex composite structures. However, void formation remains a problem. Two primary contributors to void formation, non-uniform resin flow and continuous evaporation of resin under low pressure, were experimentally studied. Improved pressure control at the vent is proposed to reduce the void content of the manufactured composite material: at the start of the resin infusion, the pressure at the vent is set to the full vacuum of the equipment, while after the resin has saturated all of the reinforcements, the pressure at the vent is increased slightly. The full vacuum at the start of infusion avoids air entrapment, and the slightly higher pressure later in the process restrains the resin evaporation. A lower void content is obtained.

本文言語英語
ページ(範囲)1629-1637
ページ数9
ジャーナルPolymer Composites
36
9
DOI
出版ステータス出版済み - 9 1 2015

All Science Journal Classification (ASJC) codes

  • Ceramics and Composites
  • Chemistry(all)
  • Polymers and Plastics
  • Materials Chemistry

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