Contrast joints of glass-fibre with carbon-fibre reinforced polystyrene composite bonded by microwave irradiation

摘要

This paper contrasts the loss tangent, durability of reinforcement and the lap shear strengths of 33 percent by weight random glass fibre reinforced polystyrene matrix composite [PS/GF (33%)] with 33 percent by weight random carbon fibre reinforced polystyrene matrix composite [PS/CF (33%)] bonded using microwave irradiation. Fixed (2.45 GHz) and variable (2 - 18 GHz) frequency microwave (VFM) facilities are used to bond the two composites. With a given power level, the composites were exposed to various exposure times to microwave irradiation. The primer or coupling agent used for joining the glass fibre-reinforced composite was 5-minute two-part adhesive, Araldite. No filler was used in joining the carbon-fibre-reinforced composite. The lap shear strengths of PS/GF (33%) obtained by FFM facility and VFMF are higher than those of PS/CF (33%). In all cases, the PS/CF (33%) absorbed too much microwave irradiation and this damaged the material (Ku et al., 2000c).