碳/玻璃混杂纤维增强环氧树脂复合材料线芯的性能  

Performances of Carbon/Glass Hybrid Fibers Reinforced Epoxy Resin Composite Core

作　　者：李哲曌[1] 曾竟成[1] 邢素丽[1] 杜刚[1] 

机构地区：[1]国防科技大学航天与材料工程学院,湖南长沙410073

出　　处：《机械工程材料》2007年第10期29-31,共3页Materials For Mechanical Engineering

摘　　要：采用拉挤成型工艺制备了碳／玻璃混杂纤维增强环氧树脂复合材料线芯，并对其密度、力学性能、热膨胀性能、动态力学性能和耐湿热老化性能进行了研究。结果表明：线芯密度仅为1．76g／cm^3，相对直径相同的钢芯外层可缠绕更多铝导线；抗弯强度大于1600MPa，抗拉强度大于2000MPa；在25-310℃内的线膨胀系数为零，可很大程度地降低导线弧垂；玻璃化温度高达171℃，可在140℃下长期使用；线芯的耐湿热老化性能良好，可较好地用于钢芯替换。A carbon/glass hybrid fibers reinforced epoxy resin composite core was made by pultrusion, and its density, mechanics, thermal expansion, dynamic mechanical and durable properties were studied. The bend strength of the composite is more than 1 600 MPa, the tensile strength is more than 2 000 MPa, and the density is only 1.76 g/cm3, The coefficient of thermal expansion （CTE） is 0/~C in the range of 25- 310 ℃, The glass transition temperature of the composite is up to 171℃, and it can be used at 140 ℃, Accelerated aging test shows that the composite has a good durability.

关 键 词：混杂纤维 复合材料 环氧树脂 线芯 

分 类 号：TB332[一般工业技术—材料科学与工程] TM244[电气工程—电工理论与新技术]