The effect of molding process on thermomechanical properties of feather nonwoven reinforced polyester composites

Abstract

Composites reinforced with feather fibers have attracted the attention of scientists due to their low cost, availability, renewable character and low density. This experimental study emphasizes the effect of molding techniques on the mechanical, thermal and biodegradability properties of feathers nonwoven reinforced polyester composite (FP). The composites were prepared by three methods: resin transfer molding (RTM), infusion and vacuum molding techniques. The morphological analysis revealed excellent compatibility of feather fiber in the matrix. The FP composites made by the three methods showed good insulation performance with thermal conductivity values ranging from 37 mW/(m.K) to 39 mW/(m.K) at 10 °C and the lowest value was observed for the sample developed by the RTM technique. Moisture absorption and the effect of void content on the moisture absorption depend on a number of factors: type of reinforcement, matrix material, molding process and fiber content .The FP composites developed by the vacuum molding technique have shown higher water absorption due to the presence of a high void content. The tensile strength and young's modulus of the FP composites were also examined in this research; the mechanical results showed that the molding techniques clearly affected the performance of the composites. The results obtained in this study have potential applications where high environmental resistance, low cost and durable materials are required.