COMPRESSION MOULDING OF A RECYCLED CARBONFIBRE REINFORCED EPOXY COMPOSITE

摘要

High strength carbon fibre was recycled from aerospace epoxy composite scrap using a pyrolysisrnprocess. The feasibility of using the recycled fibre in a non-woven form for a flame-retardantrnepoxy was investigated. Single fibre tensile tests and SEM analysis were used to determine thernquality of the recycled fibre. No significant change in the tensile properties of the fibre was seenrnand the fibres generally had a clean surface. The recycled fibre was converted into a non-wovenrnmat using a wet process. The mat was then compression moulded with resin film into a plaque torngive fibre volume fractions ranging from 20 to 40%. The mechanical performance of the plaquesrnwas then analysed. A positive linear relation between stiffness and fibre volume content wasrnobserved. However, the contribution to composite strength with increasing fibre volume contentrnwas less significant due to the degradation in fibre length during the high-pressure compressionrnmoulding process.