儿茶素对胶原膜的染色性能研究

发布时间：2018-07-08 11:20

  本文选题：儿茶素 + 胶原膜　； 参考：《中国皮革》2014年15期

【摘要】：研究了儿茶素作为一种天然植物染料对胶原膜的染色性能。采用正交试验考察了儿茶素染色反应条件对胶原膜染色效果的影响,结果表明,儿茶素浓度是染色反应的主要影响因素。最优染色工艺为:在儿茶素浓度2%、温度40℃及pH值为4的染浴液中反应3h。研究了儿茶素染色后胶原膜的天然结构、耐热性能和机械强度。红外光谱分析表明:儿茶素分子中的酚羟基与胶原分子发生了氢键结合,但胶原的三股螺旋结构没有发生变化。电镜分析结果证明胶原纤维的结构没有发生明显变化,且排布更加有序。染色后胶原膜的热变性温度提高了18℃,耐热性得到了较大的改善,机械强度有所提高。
[Abstract]:The dyeing properties of catechin as a natural vegetable dye on collagen membrane were studied. The effects of the reaction conditions of catechin on the dyeing effect of collagen membrane were investigated by orthogonal test. The results showed that the concentration of catechin was the main factor affecting the dyeing reaction. The optimum dyeing process was as follows: the reaction time was 3 h in the dye bath solution with catechin concentration 2, temperature 40 鈩，

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