有机硅季铵盐的合成及其在洗护领域中的应用  

Study on the synthesis of silicone quaternary ammonium salt and its application in the detergent and softener

作　　者：蔡国强 王琳 张艳 何美林 张蕾 何一波 Guoqiang Cai;Lin Wang;Yan Zhang;Meilin He;Lei Zhang;Yibo He(Key Laboratory of Green Cleaning Technology&Detergent of Zhejiang Province,Lishui,Zhejiang 323000,China;NICE Zhejiang Technology Co.,Ltd.,Hangzhou,Zhejiang 310051,China;Key Laboratory of Advanced Textile Materials and Manufacturing Technology,Ministry of Education,Zhejiang Sci-Tech University,Hangzhou,Zhejiang 310018,China)

机构地区：[1]浙江省绿色清洁技术及洗涤用品重点实验室,浙江丽水323000 [2]纳爱斯浙江科技有限公司,浙江杭州310051 [3]浙江理工大学先进纺织材料与制备技术教育部重点实验室,浙江杭州310018

出　　处：《日用化学工业（中英文）》2024年第7期812-820,共9页China Surfactant Detergent & Cosmetics

基　　金：浙江省“领雁”研发攻关计划项目(2022C01174)。

摘　　要：利用N,N-二甲基十二烷基胺与不同分子量的端环氧聚醚硅油进行端环氧基开环反应,合成出不同硅氧链长的二甲基十二烷基有机硅季铵盐。通过FT-IR确定了有机硅季铵盐产物的合成结构;考察了不同分子量有机硅季铵盐与市场样以及纯棉织物经样品处理后的抑菌效果;考察了不同分子量有机硅季铵盐及其在柔顺剂体系中对织物表面Zeta电位的影响;考察了有机硅季铵盐在柔顺剂体系中的柔顺效果、在多元表面活性剂体系中的抗再沉积性能。结果表明,研制的有机硅季铵盐具有优良的抑菌效果,在低质量分数(0.1%)下即可达到大于99.9%的抑菌率。同时有机硅季铵盐能吸附到织物表面,改变织物表面Zeta电位,仅1%有机硅季铵盐即可使织物表面Zeta电位从负电位提升至正电位,提升效果明显优于市场样。所研制的有机硅季铵盐不仅能提升柔顺剂对织物的柔顺效果,还能在洗涤剂体系中提高织物对炭黑和黄泥土的抗再沉积作用。相比于聚酯纤维,有机硅季铵盐在纤维素纤维上具有更好的抗再沉积效果。Silicone quaternary ammonium salts were synthesized by the ring-opening reaction between N,N-dimethyl-dodecyl amine and epoxy polyether modified silicone oils of different molecular weights.The molecular structure of products of silicone quaternary ammonium salts were characterized by FT-IR.The bacteriostatic effects of these silicone quaternarya mmonium salts with different molecular weights,as well as some commercial samples and the cotton fabrics treated by them,were investigated.The Zeta potential of fabric surface treated by the single solution and the softener containing quaternary ammonium salt was also studied.The fabric-softening effect in softener and the anti-redeposition effect in detergent were studied for silicone quaternary ammonium salt.The results showed that the synthesized silicone quaternary ammonium salt had excellent bacteriostatic effect with antibacterial rate above 99.9%at a dosage as low as 0.1%(w/%).The Zeta potential of treated fabric was increased due to the adsorption of silicone quaternary ammonium salt.A solution of merely 1%silicone quaternary ammonium salt(MW 5000)was able to change the surface of cotton fabric from negatively charged to positively charged,which was much better than that of the commercial samples.Moreover,the synthesized silicone quaternary ammonium salt showed significant softening effect in softener system and good anti-redeposition effects against carbon black and yellow soil in the detergent system.The anti-redeposition effect on cellulose fabric was better than that on polyester fabric.

关 键 词：有机硅季铵盐 抑菌 柔顺 抗再沉积 

分 类 号：TQ649[化学工程—精细化工]