碳纤维衬纬纬编针织物增强复合材料的拉伸性能  

TENSILE PROPERTIES OF CARBON FIBER WEFT INLAY KNITTED FABRIC REINFORCED COMPOSITES

作　　者：梁佳玉 秦志刚[1] LIANG Jia-yu;QIN Zhi-gang(College of Textile and Garments,Hebei University of Science and Technology,Shijiazhuang 050018,China)

机构地区：[1]河北科技大学纺织服装学院,石家庄050018

出　　处：《玻璃钢／复合材料》2018年第11期87-91,共5页Fiber Reinforced Plastics/Composites

基　　金：河北科技大学五大平台开放基金(2014PT03)

摘　　要：研究了以碳纤维纬编衬纬针织物增强环氧树脂复合材料的拉伸性能。试验中,增强体结构以双罗纹为地组织,改变衬纬组织的衬纱根数及弯纱深度,编织了4种不同组织和参数的纬编衬纬织物,通过液压成型工艺,制备了复合材料板。用电子万能试验机测试了碳纤维的拉伸强度及结节强度,测试了复合材料在0°、45°、90°三个方向的拉伸性能。结果显示:衬入纬纱后,复合材料90°方向强度及模量明显增强,且拉伸曲线呈线性; 0°、45°方向强度有所减少,但影响不大;并且对比衬入不同纬纱根数的复合材料强度,单位长度衬入纬纱根数越多,90°方向的强度越大;对比了不同弯纱深度对复合材料性能的影响,弯纱深度增加板材在45°和90°方向上的强度减少,在0°方向强度增加。The tensile properties of epoxy composites reinforced with carbon fiber weft inlay knitted fabrics were studied.In the experiment,the reinforcement ground structure is composed of double rib.By changing the number of lining yarn and the depth of the yarn in the weft lining,weft inlay knitted fabric with 4 different structures and parameters is knitted.Finally,the composite plate is prepared by hydraulic technology.The tensile strength and circle strength of carbon fiber were tested by universal strength testing machine.The tensile properties of composites at 0 degrees,45 degrees and 90 degrees were tested.The results show that the strength of the composite material and the tensile modulus of elasticity are obviously enhanced in the direction of 90 degree after being inserted into the weft yarn,and the tensile curve is linear.The strength of 0 and 45 directions is decreased slightly,but the effect is not obvious.Moreover,as compared to the strength of composite material with different weft lining yarn numbers,the more the number of weft yarns inserted per unit length,the greater the strength at the 90 degree direction.The influence of different sinking depth on the properties of the composite is compared.The strength of the plate in the direction of 45 and 90 degree is reduced,and the strength in the direction of 0 degree increases with the sinking depth depter.

关 键 词：碳纤维 纬编 衬纬 拉伸性能 

分 类 号：TB332[一般工业技术—材料科学与工程]