摘要
以植鞣废液的再生利用为目的,使用先亚硫酸化处理,后金属盐交联的方法,对常规重革鞣制工艺产生的植鞣废液进行了再生处理。利用高效液相色谱分析了再生植物鞣剂中酚类物质的组成,以成分分析标准方法、明胶数测试和皮粉法,研究了再生植物鞣剂的成分及其与皮胶原的结合能力,最后利用显微收缩温度仪对再生植物鞣剂鞣制皮粉热稳定性进行了考察。结果表明:植鞣废液经过再生处理,简单酚含量下降,同时杨梅植鞣废液、再生马占相思植鞣废液和落叶松植鞣废液中,鞣质含量分别提高了26.43%、20.98%和15.98%;与皮胶原的反应能力明显增大,具体体现在明胶数、结合鞣质和不可逆结合鞣质的增加;鞣制皮粉的收缩温度也发生了较大程度地上升。研究结果可为植鞣废液循环利用提供参考。
The vegetable tannin effluents were sulfonated and cross linked successively, then regenerated vegetable tannin a- gents were prepared with a view for recycling. A HPLC instrument was used for investigating the composition of phenolics in the regenerated vegetable tannin agents, the reaction ability between regenerated vegetable tannin agents and collagen were studied through a chrome - tanned hide powder adsorption ability test, a gelatin precipitation capacity test as well as a binding ability test and a irreversible binding ability test, then thermo stability of tanned hide powder was evaluated by using a MHT. The results showed that, after the regeneration process, content of simple phenols were decreased while the content of tannin in bayberry effluent, acacia mangium effluent and larch effluent increased 26.43% ,20. 98% and 15.98% respectively. Meanwhile, shrinkage temperatures of the tanned hide powder were all raised. The results could provide valuable references for development of vegetable tannin effluent recycling technology.
出处
《中国皮革》
CAS
北大核心
2015年第14期5-8,13,共5页
China Leather
基金
西藏自治区科技计划项目(Z2014D81G3-2)
教育部博士点基金(20130181130009)
关键词
制革
植物鞣革
植物鞣剂
植鞣废液
循环利用
leather makmg
vegetable tanned leather
vegetable tannin extract
tanning effluent
recycling
