T700碳/EW100A玻璃纤维预浸料制备及其力学性能研究
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摘要
分别使用T700碳纤维、EW100A玻璃纤维和环氧树脂系复合制成预浸料,按照特定铺层固化成复合材料层合板,对其拉伸、压缩和层间剪切性能进行测试,并观察了断口的微观形貌,优选性能较好的作为复合材料挖补用预浸料,结果表明,T700碳纤维增强的环氧树脂复合材料力学性能较好,平均拉伸强度和模量分别为1185MPa和65.2GPa,平均压缩强度和压缩模量分别为580MPa和58.6GPa。EW100A玻璃碳纤维增强环氧树脂复合材料层间剪切性能较好,平均层间剪切强度为66.4MPa,T700碳纤维增强复合材料的平均剪切强度为65.8MPa,通过微观形貌观察分析,可以得出T700碳纤维的力学性能优于EW100A玻璃纤维,二者与树脂的结合能力相差不大。
The prepreg was made by T700 carbon fiber, EW100A glass fiber and epoxy resin composite respectively, and the composite laminate was cured according to the specific laminate, and the tensile, compression and interlaminar shear properties were tested, and the fracture was observed. The prepreg with better performance as composite material was selected. The results show that the T700 carbon fiber reinforced epoxy resin composite has good mechanical properties, and the average tensile strength and modulus are 1185 MPa and 65.2 GPa, respectively. The average compressive strength and compressive modulus were 580 MPa and 58.6 GPa, respectively. EW100A glass carbon fiber reinforced epoxy resin composite has good interlaminar shear performance, the average interlaminar shear strength is 66.4 MPa, and the average shear strength of T700 carbon fiber reinforced composite is 65.8 MPa. The mechanical properties of T700 carbon fiber are better than those of EW100A glass fiber, and the binding ability of the two is not much different from that of the resin.
The prepreg was made by T700 carbon fiber, EW100A glass fiber and epoxy resin composite respectively, and the composite laminate was cured according to the specific laminate, and the tensile, compression and interlaminar shear properties were tested, and the fracture was observed. The prepreg with better performance as composite material was selected. The results show that the T700 carbon fiber reinforced epoxy resin composite has good mechanical properties, and the average tensile strength and modulus are 1185 MPa and 65.2 GPa, respectively. The average compressive strength and compressive modulus were 580 MPa and 58.6 GPa, respectively. EW100A glass carbon fiber reinforced epoxy resin composite has good interlaminar shear performance, the average interlaminar shear strength is 66.4 MPa, and the average shear strength of T700 carbon fiber reinforced composite is 65.8 MPa. The mechanical properties of T700 carbon fiber are better than those of EW100A glass fiber, and the binding ability of the two is not much different from that of the resin.
引文
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[7]苗春卉,翟全胜,叶宏军,赵艳文.酚醛改性聚芳基乙炔树脂基复合材料性能研究[J].玻璃钢/复合材料,2018(12):82-88.
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