Influence of hot pressing process parameters on bending properties of TA2/CF/PEEK laminates
Based on the material systems of TA2 foil,carbon fiber and PEEK,the preparation process of titanium foil-carbon fiber cloth-PEEK sheet directly composited by hot pressing method was investigated.After pre-treatment of ultrasonic cleaning degreasing and sandpa-per polishing for the initial materials,the layers were manually laid and put into self-designed hot pressing moulds,and the TA2/CF/PEEK laminates were prepared by hot pressing method based on different temperatures(370 and 390 ℃),pressures(0.8,1.6 and 2.5 MPa)and holding time(20 and 40 min).The influence of hot pressing process parameters on the bending properties of laminates was investigated using the three-point bending experiment method.The results show that the better hot pressing process is:deformation temperature of 390 ℃,hot pressing pressure of 1.6 MPa,holding time of 40 min and laying two resin films on each side.The TA2/CF/PEEK laminates prepared under this process have bending strength of 681.68 MPa and bending modulus of 69.5 GPa.
fibre metal laminatestitanium alloythermoplastic compositesbending propertyhot pressing process
万方数据
维普
