杨梅栲胶的改性及其对六价铬防治作用的研究  

Study on Modification of Waxberry Extract and Application for Preventing Chromium (VI)

作　　者：马兴元[1] 易宗俊[1] 俞从正[1] 王俊君[1] 李士军[1] 

机构地区：[1]陕西科技大学资源与环境学院,陕西西安710021

出　　处：《皮革化工》2007年第6期1-4,15,共5页Leather Chemicals

基　　金：陕西省陕西省教育厅产业化项目"皮革中六价铬防治助剂的生产技术"陕西科技大学校自然科学基金(ZX05-12);咸阳市科技局项目(K0410-1)基金资助

摘　　要：以栲胶对六价铬的防治原理为基础,通过磺化以及Mannich反应对杨梅栲胶进行两性改性。研究了体系中反应温度、时间、pH值对反应过程的影响。将改性后栲胶应用于实际皮革生产中,检测皮革中六价铬的含量。结果表明改性栲胶对六价铬的防治效果非常明显。Based on the prevention and cure principium of extract for Cr（Ⅵ）, the amphoteric modification was carried out to the waxberry extract through the treatments of sulphonation and Mannich reaction. The effects of the different temperature, time and pH on the reaction courses were investigated. Results showed that the obvious effect could be found due to the fact that the Cr（Ⅵ） content in finished leather was small when the modified extract was used in the prevention and cure of Cr（Ⅵ） in leather making.

关 键 词：杨梅栲胶 六价铬 MANNICH反应 两性改性 

分 类 号：TS51[轻工技术与工程—皮革化学与工程]