摘要
以铬、铝、铁、坚木为鞣剂对浸酸牛皮进行无机及有机-无机结合鞣,并使用蒸馏水、脲、十二烷基硫酸钠、甘油、菜油、机油等溶剂,分别对坯革进行处理,通过测定皮革收缩温度(Ts)的变化,据此探讨无机溶剂、有机溶剂、表面活性剂对皮革耐湿热稳定性的影响及皮革退鞣的相关原理。研究结果表明:甘油对无机鞣革的耐湿热稳定性影响最大,可使Ts下降15.58℃;铝鞣革、铁鞣革不耐水和机油的浸泡;0.5mol/L的脲溶液和菜油对铁鞣革有很强的退鞣作用;结合鞣革均不耐水和甘油浸洗,Ts平均下降4.82℃,机油对结合鞣革耐湿热稳定性的降幅超过菜油;脲溶液使植-铬鞣的鞣制效应略加增强,但对植-铁鞣的退鞣效果明显,△Ts达-6.5℃;栲胶-无机结合鞣革的耐溶剂性要优于配合物单独鞣革。
With chromium, aluminum,ferrum and quebracho extract, the pickled hides were tanned individually or combina- tionally. Then the crust leather was Chemically treated with some kinds of solvents, such as distilled water, urea, sodium dodecyl sulfate, glycerol, rapeseed oil ,engine oil and so on. The variation of leather＇ s hydrothermal stability （＇Is） was measured one by one in order to find out the influence of solvents and reasons of fading on tanned leather. The result shows that glycerol has the most seriously effect to Ts with a decreasing amplitude of 15.58~C ;the leather tanned by aluminum and ferrum has a poor resistibility to water and engine oil ; urea solution with concentration of 0. 5mol/L and rapeseed oil can make a great impact to ferrum tanned leather. All combination tanned leather has a inferior resist to washings of water and glycerol, the Ts decreases 4. 82℃ on aver- age. After treatment with engine oil, the hydrothermal stability of combination tanned leather declines more than, compared with rapeseed oil. Urea solution can make a little contribution to hydrothermal stability of leather tanned by quebracho extract and chro- mium, whereas the vegetable - ferrum leather doesn＇ t suitable for this point and A T is - 6. 5 ℃. The combination tannage leath- er has a better resistivity to solvent than solo mineral - tanned leather.
出处
《中国皮革》
CAS
北大核心
2013年第3期13-16,19,共5页
China Leather
关键词
配合物
溶剂
耐湿热稳定性
complex
solvent
hydrothermal stability
作者简介
第一作者简介：杨永伟，男，1987年生，在读硕士
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