有机硅复配乳液消泡剂制备工艺的研究
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摘要
二甲基硅油和二氧化硅混合得到硅膏,然后与聚醚、聚醚改性硅油、乳化剂和增稠剂等进行复配,制得有机硅聚醚乳液消泡剂。以消泡剂稳定性和消泡性能为检测指标,分别研究了消泡主体硅膏与聚醚的比例、乳化剂的HLB值、混合乳化剂的种类及添加量、增稠剂的种类及添加量对消泡剂的影响。结果表明,乳液中硅膏与聚醚的含量为20%,且两者比例为2∶3时,乳化剂HLB值应在7.7左右;采用混合乳化剂70%的Span60和30%的Tween80,用量为6%;选用0.75%的HPMC为增稠剂时,乳化效果最佳。
Silicone polyether emulsion defoamer was prepared by compounding silicone paste,polyether,emulsifier and thickener.Silicone paste was obtained by mixing simethicone and silicon dioxide.The proportion of silicone paste to polyether,the effect of the HLB value,the compound emulsifier type and the amount,the thickener type and the amount on the stability and defoaming properties of the defoamer were studied.The results indicated that in the emulsion the content of the silicone paste and polyether is 20% as well as the ratio is 2∶ 3,the HLB value should be about 7.7,the amount of compound emulsifier 70% Span60 + 30% Tween80 is 6%.When using 0.75% HPMC as thickener,the emulsifying effect is the best.
Silicone polyether emulsion defoamer was prepared by compounding silicone paste,polyether,emulsifier and thickener.Silicone paste was obtained by mixing simethicone and silicon dioxide.The proportion of silicone paste to polyether,the effect of the HLB value,the compound emulsifier type and the amount,the thickener type and the amount on the stability and defoaming properties of the defoamer were studied.The results indicated that in the emulsion the content of the silicone paste and polyether is 20% as well as the ratio is 2∶ 3,the HLB value should be about 7.7,the amount of compound emulsifier 70% Span60 + 30% Tween80 is 6%.When using 0.75% HPMC as thickener,the emulsifying effect is the best.
引文
[1]黄文润.硅油及二次加工[M].北京:化学工业出版社,2004.
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[4]徐飞飞.聚醚改性有机硅乳化剂的合成及在消泡剂中的应用[D].南京:南京林业大学,2012.
[5]李小瑞,章慧敏,陈文霞.有机硅/聚醚复合乳液消泡剂的配制[J].有机硅材料,2004,18(6):18-20.
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[7]梁治齐,李金华.功能性乳化剂与乳状液[M].北京:中国轻工业出版社,2000.
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[9]Sawicki G C.Impact of surfactant composition and surfactant structure on foam control performance[J].Colloids&Surfaces A Physicochemical&Engineering Aspects,2005,263(1/2/3):226-232.
[10]陈朝毅,郭桦,蒋寅,等.界面张力法表征糖用消泡剂性能的研究[J].现代食品科技,2008,24(8):781-783.
[11]焦学瞬,贺明波.乳状液与乳化技术新应用[M].北京:化学工业出版社,2006.
[12]Jha B K,Christiano S P,Shah D O.Silicone antifoam performance:correlation with spreading and surfactant monolayer packing[J].Langmuir,2000,16(26):9947-9954.
[13]崔正刚,蒋建中.表面活性剂和界面现象[M].北京:化学工业出版社,2015.
[14]Chern C S,Chen Y C.Stability of the polymerizable surfactant stabilized latex particles during semibatch emulsion polymerization[J].Colloid&Polymer Sci,1997,275(2):124-130.
[15]王芸,吴飞,曹治平.粒径分布对有机硅消泡剂乳液性能的影响[J].化学工程师,2008,149(2):50-51.
[2]鲁亚青,张楠,王文宗,等.聚醚改性硅油消泡剂消泡机理研究[J].有机硅材料,2010,24(2):80-84.
[3]Abdolahi F,Moosavian M A,Vatani A.The mechanism of action of antifoams[J].Journal of Applied Sciences,2005,5(6):543-545.
[4]徐飞飞.聚醚改性有机硅乳化剂的合成及在消泡剂中的应用[D].南京:南京林业大学,2012.
[5]李小瑞,章慧敏,陈文霞.有机硅/聚醚复合乳液消泡剂的配制[J].有机硅材料,2004,18(6):18-20.
[6]Pelton R.A review of antifoam mechanisms in fermentation[J].Journal of Industrial Microbiology&Biotechnology,2002,29(4):149-154.
[7]梁治齐,李金华.功能性乳化剂与乳状液[M].北京:中国轻工业出版社,2000.
[8]暴军萍,李凤艳,赵天波.硅油乳液的制备及乳化条件的研究[J].日用化学工业,2009,39(6):395-398.
[9]Sawicki G C.Impact of surfactant composition and surfactant structure on foam control performance[J].Colloids&Surfaces A Physicochemical&Engineering Aspects,2005,263(1/2/3):226-232.
[10]陈朝毅,郭桦,蒋寅,等.界面张力法表征糖用消泡剂性能的研究[J].现代食品科技,2008,24(8):781-783.
[11]焦学瞬,贺明波.乳状液与乳化技术新应用[M].北京:化学工业出版社,2006.
[12]Jha B K,Christiano S P,Shah D O.Silicone antifoam performance:correlation with spreading and surfactant monolayer packing[J].Langmuir,2000,16(26):9947-9954.
[13]崔正刚,蒋建中.表面活性剂和界面现象[M].北京:化学工业出版社,2015.
[14]Chern C S,Chen Y C.Stability of the polymerizable surfactant stabilized latex particles during semibatch emulsion polymerization[J].Colloid&Polymer Sci,1997,275(2):124-130.
[15]王芸,吴飞,曹治平.粒径分布对有机硅消泡剂乳液性能的影响[J].化学工程师,2008,149(2):50-51.