酸法水解芦荟凝胶在噁唑烷鞣革中的应用  

Study on Acidic Hydrolysis of Aloe Gel and Its Application in Oxazolidine Tanning Leather

作　　者：任龙芳[1] 罗媛媛[1] 王学川[1] 

机构地区：[1]陕西科技大学轻化工助剂化学与技术省部共建教育部重点实验室,陕西西安710021

出　　处：《皮革科学与工程》2011年第5期13-17,共5页Leather Science and Engineering

基　　金：国家自然基金项目(20876090);陕西省教育厅科研计划项目(2010JK448);陕西科技大学科研启动基金项目(BJ09-16);陕西科技大学研究生创新基金

摘　　要：以库拉索芦荟凝胶为原料,采用酸法研究其水解工艺。单因素实验结果表明:当pH为2.0,反应温度为120℃,反应时间为8 h,底物质量分数为6%时,水解效果最好。FT-IR分析结果表明:水解后的羧酸盐的C=O伸缩振动吸收峰和氨基N-H伸缩振动吸收峰都明显增强。将其用于噁唑烷鞣革的甲醛去除中,结果表明,甲醛捕获率为30.68%。Aloe gel was hydrolyzed by various acids,and the effect of pH,temperature,time and the concentration of aloe gel were studied.The optimal conditions were pH 2.0,temperature 120 ℃,time 8h and the concentration of aloe gel was 6%.Under the conditions,the hydrolysis was the best.The FTIR analysis results showed that the peak of C=O and N-H obviously became stronger.It was used to remove formaldehyde in oxazolidine tanning leather,and the application results showed that the formaldehyde-removal rate was 30.68%.

关 键 词：芦荟凝胶 盐酸 甲醛捕获剂 

分 类 号：TS513[轻工技术与工程—皮革化学与工程]