基于地沟油的Gemini型阳离子表面活性剂及对纸张的柔软效果  

Gemini Cationic Surfactant Based on Waste Oil and Softening Effect to Paper

作　　者：苗宗成[1] 王浩[1] 

机构地区：[1]西京学院,陕西西安710123

出　　处：《纤维素科学与技术》2016年第1期61-65,共5页Journal of Cellulose Science and Technology

基　　金：陕西省自然科学基础研究计划项目(2013JQ8043);西京学院科研基金项目(XJ13B01)

摘　　要：将废弃地沟油进行酸解获得混合脂肪酸。以混合脂肪酸、二甲基乙醇胺、环氧氯丙烷等为基本原料制备了一种新型的基于地沟油的Gemini阳离子表面活性剂。使用傅里叶变换红外光谱对制备化合物的特征基团进行表征。利用表面张力法测定制备表面活性剂的临界胶束浓度为5.07×10^(-3)mol/L,利用电导率法测定临界胶束浓度为5.02×10^(-3)mol/L,此时对应的表面张力y_(cmc)为35.26 mN/m。最后,使用手感式柔软度测试仪测试制备表面活性剂对纸张的柔软效果,结果表明当表面活性剂浓度达到9.1×10-4 mol/L时,即可以取得较好的柔软效果。Mixed fatty acid which was from hydrolysis of waste oil was used as raw mateial together with dimethylethanolamine and epichlorohydrin to synthesize a novel Gemini cationic surfactant. And then FT-IR was used to characterized the prepared compound. CMC was 5.07× 10^-3 mol/L and 5.02× 10^-3 mol/L, respectively determined by surface tension method and electrical conductivity method, at this point, γcmc was 35.26 mN/m. Moreover, the softening effect to paper of the surfactant was tested by soft degree test instrument, the results showed that the paper was endowed with better soft properties when the concentration of the surfactant was 9.1 × 10^-4 mol/L.

关 键 词：地沟油 季铵盐 表面活性剂 纸张柔软剂 

分 类 号：TQ645.9[化学工程—精细化工]