碳纤维布增强聚丙烯板落锤试验研究OA

In order to study the impact resistance of carbon fiber sheet reinforced polypropylene sheet.The composite plates of single-layer carbon fiber cloth and double-layer carbon fiber cloth were prepared by external sticking of epoxy resin,and the control specimens without carbon fiber cloth were set up at the same time.The drop weight test was carried out with the energy of 4,8 and 12 J respectively by using INSTRON CEAST 9350 drop weight impact test system,and the impact load-displacement curve and the damage mode of the plate after the test were obtained.The test results show that the external application of carbon fiber sheet can not only significantly improve the impact resistance of polypropylene sheet,but also reduce the phenomenon of"stress whitening"of polypropylene sheet under impact load.At the same time,the impact resistance of the plate with double-layer carbon fiber sheet is better than that of single-layer carbon fiber sheet.