玻纤增强尼龙材料熔接痕强度初探

摘要

制备了不同黏度的尼龙6或尼龙66与不同直径的玻纤的共混物,对玻纤增强尼龙材料的熔接痕强度进行了研究.结果表明:使用相对黏度为2.4的尼龙6或2.4的尼龙66,其熔接痕都要比相埘黏度为2.7的尼龙6或2.7的尼龙66高；在相同黏度尼龙6或尼龙66体系中,使用10 μm直径玻纤要比使用13μm直径玻纤的熔接痕强度高.同时从扫描电镜可知:尼龙树脂对直径为10 μm玻纤的包覆,要优于对直径为13μm玻纤的包覆.%The weld line strength was researched of the fiber-reinforced nylon materials, with different viscosity nylon 6 or nylon 66 and different diameter glass fibers. The results showed that using the 2. 4 viscosity nylon 6 or nylon 66 had better weld line strength than the 2. 7 viscosity nylon 6 or nylon 66; and using the same viscosity nylon 6 or nylon 66, the 10 jxm diameter glass fiber had better weld line strength than the 13 μm diameter glass fiber. With the SEM, nylon coated better on the 10 |xm diameter glass fiber.