摘要
本文采用了阳离子交换色谱，可见光谱及沉淀法等方法研究了ＹＬ聚丙烯酸类助鞣剂与三价铬盐的配位作用和ｐＨ值、ＹＬ与络盐的比例和蒙囿剂等因素对配位过程的影响：在此基础上进行了ＹＬ助鞣剂在铬鞣中的应用研究。研究结果表明：１．ＹＬ参与了铬配合物的配位：２．ＹＬ易与高电荷的铬配合物发生作用，而与中、阴性及低电荷铬配合物不发生作用或作用很小：３．上述因素对ＹＬ与铬的配位过程有很大的影响：４．铬鞣中应用ＹＬ助鞣剂可以促进铬的吸收和固定，增加革中铬含量，减少废液中铬含量；５．成革的丰满性，弹性以及边腹部位的填充性得到了很大的改善。
The process of YL polyacrylate auxiliary tanning agent coordinating with trivalent chromium was researched by the means of cationic exchange chromatography,visible spectrum analysis,percipitation and so on in this paper.The influences that initial pH ,the proportion of YL to chromium,masking agents and other factors excercised on the process also were discussed.On the basis of above,YL was used in chromium tanning process.The research results showed that YL could easily coordinate with trivalent chromium,but the coordination mainly took place between YL and high-charged chromium complex cations,and there was almost no action between YL and low-charged positive or netural or negetive chromium complex compounds.The actors of above,especially initial pH,had great influence on the coordinating process.It could improve the absorption and fixation of chromium,increase the chromium content of leather and decrease that of tanning waste liquor that YL was used in chromium tanning process.At the same time,the fullness and elasticity of leather and filling property of belly also had great progress.
出处
《皮革科学与工程》
CAS
1996年第1期1-14,共14页
Leather Science and Engineering
关键词
配位
铬鞣
丙烯酸类助鞣剂
三价铬盐
制革
polyacrylate auxiliary tanning agent,trivalent chromium,coordination,chromium tannage,exhaustion absorption
