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碳纤维和玻璃纤维混合增强树脂基复合材料目前都用单丝铺放工艺。为了改善单向预浸料的工艺性能,开发了碳纤维和玻璃纤维混织布。用它们制备复合材料,操作方便,可用手糊或模压工艺。根据设计需要,可调整混织布的经纬比例和布的构造,以获最佳性能/价格比。 本文通过六种混织布/环氧复合材料的力学性能测定和估算,表明其拉伸和弯曲的强度和弹性模量符合“混合律”。在碳纤维占总纤维的体积分量为26％时出现最低的复合材料强度,而碳纤维的体积分量超过53％时才对复合材料的强度和弹性模量部有提高。
Carbon fiber and fiberglass hybrid reinforced resin-based composites are currently monofilament laying process. In order to improve the process performance of unidirectional prepregs, a carbon fiber and glass fiber hybrid fabric was developed. Use them to prepare composite materials, easy to operate, hand lay-up or molding process available. According to the needs of the design, we can adjust the ratio of weft and weft fabric and fabric structure, in order to obtain the best performance / price ratio. In this paper, the mechanical properties of six kinds of mixed fabric / epoxy composites were measured and evaluated, which showed that the strength and elastic modulus of tensile and bending were in accordance with “mixed law”. The lowest composite strength occurred when the volume fraction of carbon fibers in the total fibers was 26%, while the strength and elastic modulus portions of the composite materials were increased only when the volume fraction of carbon fibers exceeded 53%.