The Resin Flow Character of Natural Fiber Reinforcement for Bio-Composites under Vacuum Assisted Resin Transfer Molding

The natural fiber composites are considered as bio-composite's for its easy recycle and eco-friendly. Natural fiber composites reinforced thermoset resin has been attract widely attention in order to explore the application of natural fiber composites. The resin flow character is an important factor which affects the final product property. This paper mainly investigates the flow character of biaxial weft knitted flax reinforcement for thermosetting composites. The results show that increasing of vacuum pressure and reinforcement layers lead to lower permeability values; the higher moisture regain lead to higher permeability; the sodium hydroxide treatment decreases the reinforcement permeability.