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Silicone in Water Emulsifier
Hello,
I have a high load of Silicones, say 35-40%…..what would be a good SI-W Emulsifier for a thick lotion?
Thanks
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8 Replies
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I emulsified 30% silicone in water with 2.5% of Momentive’s Silsoft SF1540 (Cyclopentasiloxane (and) PEG/PPG-20/15 Dimethicone). At the end I got a very nice thick lotion that is easily spreadable.
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Great!
Was that your sole emulsifier? What % of Silsoft do you recommend?
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DC 5225C from Dow Corning, can start with 3% level.
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Will try! Thanks Ruben and Milliachemist!
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what would you recommend to use for high silicone and oils in an anhydrous system to prevent the oils from kicking out? A palmade product
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You need organo-silicones to couple the synthetic silicones to the organic oils (organic as in chemistry, not agriculture) Phenyl Trimethicone is a good starting point.
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Just a very naive and stupid idea but maybe you have to be close on the densities as well for both the silicon and organic oils or else you would have two phase product on hand
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When I’ve worked on similar products, I’ve started with the organic oil, and then determined which organo-silicone it was soluble (not dispersible) in. Then, I would use that mixture to see if it was soluble in silicone. If not, I would add either more of the first or another organo-silicone and try the solubility tests in silicone again. Sometimes it took combinations of three or four solubilizers before I got a stable mixture.
I don’t know of any way of calculating this - I’ve always done it by trial and error.
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