腈纶接枝蛋白质水解条件对吸水率和接枝率的影响

研究了腈纶表面接枝蛋白质水解工艺条件对吸水率和接枝率的影响关系。通过红外光谱分析结果证实了腈纶纤维已接枝上大豆蛋白。实验结果还表明,水解时间、水解温度及NaOH浓度都对腈纶纤维的吸水率和接枝率有很大的影响。在一定的水解强度范围内,腈纶的吸水率及接枝率均随水解强度的增加而不断提高;当水解强度过高时,接枝率反而会下降。腈纶表面接枝蛋白质的最佳水解工艺条件为:水解时间15 min、水解温度为90℃、NaOH浓度为10%。X-射线衍射分析表明,腈纶经过水解、接枝后,纤维的聚集态结构没有明显变化。

Effect of hydrolization condition on grafting efficiency and water-absorbing efficiency of protein grafting onto acrylic fiber

effects of hydrolization condition on grafting efficiency and water-absorbing efficiency when the soy- bean-Protein is grafted onto acrylic fiber,has been studied in this paper.Including the test of IR curve was proved that the soybean-Protein has been grafted into the surface of acrylic fiber.As is showed in the experiment,the hydrolization time; hydrolization temperature and the NaOH Concentration is effect to water-absorbing efficiency and grafting efficiency of the acrylic fiber.At a certain extent hydrolization level,the water-absorbing efficiency and the grafting efficiency increases with the improvement of hydrolization level either;when the hydrolization become a high level,the grafting efficiency will be de- crease.The optimal hydrolization conditions are:hydrolization time 15 mins;hydrolization temperature 90℃C;NaOH Con- centration 10%.The X-ray diffraction shows that is inconspicuous change of aggregate states of grafted fiber.