摘要
以10-十一烯酸四氟丙酯(UATE)、聚醚(F-6)和苯基含氢硅油为原料,氯铂酸为催化剂,经硅氢加成反应合成了长链含氟烷基酯与聚醚共改性苯基含氢硅油(UAPFPS)。通过FT-IR和1H NMR对UAPFPS的结构进行了表征,采用单因素试验对反应中各影响因素进行考察得到其较佳工艺参数为:反应温度110 ℃,反应时间5.5 h,n(Si-H) ∶n(C=C)=1∶1.2,n(F-6) ∶ n(UATE)=1∶1,催化剂用量20 μg/g(相对于每克反应物)。在此条件下Si-H键转化率为95.30%。将UAPFPS、硅膏、乳化剂和增稠剂复配制得改性有机硅消泡剂,其性能测试结果表明,该消泡剂具有较好的消泡性、抑泡性与稳定性。
10-Undecenoic acid tetrafluoropropyl ester( UATE), allyl polyether( F-6) and phenyl hydrogencontaining silicone oil were used as raw materials. Chloroplatinic acid was used as catalyst. The phenyl hydrogencontaining silicone oil co-modified with polyether and fluorine-containing ester( UAPFPS) was synthesized via hydrosilylation. The structure of UAPFPS was characterized by FT-IR and 1H NMR. The optimum parameters were obtained by single factor experiment: the reaction temperature was 110 ℃;the reaction time was 5.5 h;n(Si-H)∶n(C=C)=1∶1.2;n(F-6)∶n(UATE)=1∶1;the amount of catalyst is 20 μg/g( relative to each gram of reactant). Under this condition, the conversion of Si-H bonds was 95.30%. A modified silicone defoamer was prepared by compounding UAPFPS, silicone paste, emulsifiers and thickener. The results of performance test show that the defoamer has good defoaming properties, foam inhibition and stability.
作者
郭睿
韩双
张瑶
王宁
高弯弯
GUO Rui;HAN Shuang;ZHANG Yao;WANG Ning;GAO Wan-wan(Key Laboratory of Auxiliary Chemistry & Technology for Chemical Engineering,Ministry of Education,Shaanxi University of Science &Technology,Xi’an,Shaanxi 710021,China)
出处
《日用化学工业》
CAS
CSCD
北大核心
2019年第3期150-155,共6页
China Surfactant Detergent & Cosmetics
基金
陕西省重点研发计划资助项目(2017ZDXM-GY-0872
2017GY-185)
关键词
长链含氟烷基酯
苯基含氢硅油
硅氢加成
消泡剂
long-chain fluorinated alkyl ester
phenyl hydrogen-containing silicone oil
hydrosilylation
defoamer
