玻璃纤维增强MC尼龙复合材料的力学性能

THE MECHANICAL PROPERTIES OF GLASS-FIBER REINFORCED MONOMER CASTING NYLON (GFRMCN)

考察了玻璃纤维增强ＭＣ尼龙（ＧＦＲＭＣＮ）中玻璃纤维的表面处理及加入量对力学性能的影响。并用ＳＥＭ对ＧＦＲＭＣＮ材料界面及其对力学性能的影响进行了研究。结果表明：使用ＫＨ５５０作偶联剂对ＧＦＲＭＣＮ复合材料是很有效的。当农纤加入４０％时，拉伸强度比基体提高３２．２％，拉伸弹性模量提高１５２％，弯曲强度提高７４．３％，弯曲弹性模量提高了１１７％，而缺口冲击韧性提高了１６２％。根据材料的制备工艺特点，玻纤的加入量以３０％～４０％为宜，既保证有良好的综合力学性能，又具有很好的工艺操作性。

The effects of surface treatment and additional content of glass-fiber on mechanicalproperties of fiber reinforced MC nylon composite (GFRMCN) are studied. The GF/MCNYLON interface and its effect on the properties of GFRMCN are also analysed by usingSEM. The results show that KH550 as coupling agent is efficeint to the GFRMCN; the tensile strength, tensile modulus, fie-cure strength, fie-cure modulus and impact toughness ofGFRMCN composite(40wt% of G. F. ) are respectively increased by 32. 2%, 152%, 74. 3%,117% and 162%,compared with MC nylon. According to the characteristics of material processing, 30% ~ 40% additional content of glass-fiber is suitable, which guarantees materialhaving comprehensive mechanical properties and good processing property.