栲胶和有机膦结合鞣制山羊服装革工艺  

Combination Tannage of Goat Garment Leather by Vegetable Tannin Extract and Organic Phosphonium

作　　者：王学川[1,2] 赵宇[1,2] 袁绪政[1,2] 齐盼[1,2] 

机构地区：[1]陕西科技大学资源与环境学院,陕西西安710021 [2]教育部轻化工助剂化学与技术重点实验室,陕西科技大学,陕西西安710021

出　　处：《中国皮革》2009年第21期4-7,共4页China Leather

基　　金：科学技术部国家科技支撑计划项目(2006BAC02A09);国家自然科学基金项目(20876090);陕西科技大学研究生创新基金资助

摘　　要：采用栲胶BA与有机膦FCC结合鞣制山羊服装革,针对有机膦鞣剂在鞣制过程中易释放甲醛的特点,鞣制结束后增加氧化工序,并且加入一定量端氨基树枝状聚合物做为甲醛捕获剂。由单因素试验优化出了2种鞣剂的最佳用量:BA 5%、FCC 2%。所鞣革坯耐湿热稳定性Ts(收缩温度)≥90℃,抗张强度为18.1N/mm^2,撕裂强度为53.7N/mm,规定负荷伸长率28.6%,断裂伸长率68.8%。加入端氨基树枝状聚合物将游离甲醛含量从原来161.3mg/kg降低至34.3mg/kg,游离甲醛去除率达到78.7%。Combination tannage technology using vegetable tannin extract and organic phosphonium of goat garment leather was studied. In order to improve the conventional technology, formaldehyde capture agent and oxygening was added to decrease free formaldehyde in the latter part of procedure. The dosage of two tanning agent are optimized through single factor experiment： extract 5wt% , organic phosphonium 2wt% （based on the 150% weight of pickling pelt）. Heat- resistant stability and mechanical properties are excellent ：Ts ≥90℃, tensile strength is 18.1N/mm^2, tear strength is 53.7N/mm, given load extensibility is 28.6N/ mm ;breaking elongation is 68.8%. The levels of formaldehyde is 161.3mg/kg compared to 34.3mg/kg after adding formaldehyde capture agent.

关 键 词：山羊服装革 栲胶 有机膦 结合鞣 除醛 

分 类 号：TS54[轻工技术与工程—皮革化学与工程]