【摘要】 从废皮屑中提取胶原蛋白,与羧甲基纤维素(CMC)和甘油共混制成复合膜,并对复合膜力学性能的影响因素进行了研究。结果表明:在共混体系中加入一定的羧甲基纤维素,有利于提高膜的强度;将羧甲基纤维素加入膜体系后,膜的力学性能有了显著提高。在羧甲基纤维素与胶原蛋白质量比1∶2,羧甲基纤维素质量分数4%,胶原蛋白质量分数12%,膜液pH值为3.5,溶液温度60℃,溶液共混时间60min,甘油质量分数3%条件下,制得的共混膜力学性能最佳。更多还原

【Abstract】 Collagen/ sodium carboxyl methyl cellulose blend film was prepared by the blending of collagen extracted from waste chrome-shavings,CMC and glycerin. The factors which had influences on the mechanical properties of the blend film were discussed.It shows that the use of a small amount of CMC could improve the mechanical properties of the blend film.When the mass ration of CMC/collagen is 1∶2,CMC mass fraction is 4%,collagen mass fraction is 12%,pH value of blending solution is 3.5,temperature of blending solution is 60℃,time of agitating is 60min,glycerin mass fraction is 3.0%,the optimum mechanical properties of the film are obtained.更多还原