EVA乳胶液对纤维增强氯氧镁水泥界面性能的影响

EFFECT OF EVA EMULSOID ON THE INTERFACIAL STRENGTH OF THE GLASS FIBER REINFORC ED MAGNESIAN OXYCHLORIDE CEMENT COMPOSITES

通过采用聚合物乳胶液EVA对氯氧镁水泥改性以及用EVA对玻纤进行表面处理两种不同的工艺,制备氯氧镁复合材料试样并进行宏观和微观性能测试,研究了EVA乳胶液对纤维增强氯氧镁水泥界面性能的影响趋势,并探讨了其作用机理。实验结果表明:EVA作为添加剂加入水泥中能明显改善纤维增强氯氧镁水泥的界面粘结性能;而用EVA作表面处理剂处理纤维对界面粘结性能没有明显的影响。

By adding EVA to magnesian oxychloride cement in different amounts and adopting different EVA for the glass fiber treatment, mechanical and microscopic tests for the composite samples were carried out to research the effect of EVA emulsoid on the interfacial adhesion strength and discuss its mechanism. The results indicate that EVA added to cement as an additive can improve the interfacial adhesion strength of the glass fiber reinforced magnesian oxychloride cement composites obviously; while using EVA as a surface active agent to deal with glass fibers has no evident influence on the interfacial adhesion strength of the composites.