用甲基丙烯酰氧乙基三甲基氯化铵接枝真丝的研究

为提高真丝纤维织物的抗菌防皱性能,根据真丝纤维蛋白质主体的结构,研究了以硝酸铈铵(CAN)为引发剂,甲基丙烯酰氧乙基三甲基氯化铵(DMC)单体接枝真丝的影响因素,并对DMC接枝真丝后的回潮率、单丝强力和泛黄指数进行了研究,用红外光谱分析了接枝真丝的化学结构。当DMC浓度为06mol/L,CAN的质量分数为10%,pH=3,温度60℃保温120min时,接枝效果较好。接枝后回潮率改善,但泛黄指数有上升趋向,单丝强力也有所下降。红外光谱分析表明单体已接枝到真丝纤维上。

Study of Methacryloyloxyethyl Trimethylammonium Chori-bc Grafting on Silk Fiber

In this paper,according to silk fiber’s structure,the factors affecting grafting reaction were studied for the purpose of improving silk fiber’s antibacterial property,in which ceric ammonium nitrate(CAN) and methacryloyloxyethyl trimethylammonium chori-be(DMC)were used as initiator and monomer respectively.It can be concluded from the experiment that grafting was well performed when DMC’s concentration was 0.6 mol/L,mass fraction of CAN was 10%,pH=3,reaction time was 120 minutes and reaction temperature was 60 ℃.Moisture regain was increased,single yarn strength was decreased and yellowness index was improved after grafting.It was shown by infrared spectra that DMC was grafted on silk fiber.