腈纶表面接枝大豆蛋白质的初步实验

 介绍了腈纶表面接枝大豆蛋白质的理论与实验效果。结果表明,腈纶经表面水解、酰氯化、接枝,可以制得蛋白质表面接枝改性纤维。接枝后纤维的拉伸断裂强度为1.9~2.1 cN/dtex,断裂伸长为25%~30%。SEM观察表明,在腈纶表面接枝大豆蛋白质,可以赋予纤维表面完整的蛋白质覆盖层,说明在腈纶表面接枝蛋白质可以制成表面覆盖蛋白质的改性腈纶。

Elementary experiment of grafting soybean protein onto the surface of PAN fiber

This paper introduced the theoretical and experimental aspects of grafting soybean protein onto the surface of PAN fiber.The results indicated that through surface hydrolysis,acidchloride reaction and grafting,the protein grafting modified polyacrylonitrile(PAN) fiber was obtained.The elongation breaking strength of the grafted fiber was 1.9～(2.1 cN/dtex,) and the breaking extension was 25%～30%.SEM photographs showed that the surface of PAN fiber was wholly covered by a protein layer after grafting.This demonstrated that the modified PAN fiber with its surface covered by protein could be obtained by grafting protein onto the surface of PAN fiber.