凹凸棒土改性MC尼龙的研制

A study on MC nylon modified by attapulgite

为提高MC尼龙的综合性能,通过碱催化阴离子聚合反应制备凹土填充尼龙复合材料。采用扫描电镜对复合材料的微观形貌进行观察,研究改变凹土添加量对聚合反应的影响,并利用DSC测试其热性能。结果表明,经活化偶联处理的凹土与尼龙基体的界面结合良好,凹土的加入提高了复合材料的耐热性能,凹土的最佳投加量为0.5 g,这样制得的复合材料耐热性能最好。

In order to improve the comprehensive properties of MC nylon,MC nylon composites modified by attapulgite has been successfully prepared by anionic polymerization.Microstructure of are composites has been observed by using a scanning electron microscope and effects of attapulgite on polymerization were researched.Thermal properties of composites are tested by DSC.The results show that the interfaces between nylon matrix and attapulgite pretreated with activation and coupling agents bond well.The addition of pretreated attapulgite into the nylon composite can obviously improve its heat-resistant property,and the optimum heat-resistant property can be achieved for the best additive quantity of 0.5g attapulgite.