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silicone microemulsion
As naive as I may sound but I couldn’t really fathom the reason for 2 ethoxylated undecanols with 11 moles of PEG and 5 moles of PEG in a single product. The INCI description is Silicone quanternium-16 (and) undeceth-11 (and) butyloctanol (and) undeceth-5.
Could anyone please explain the presence of 2 undeceths with different degree of ethoxylation?????thanks -
3 Replies
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ha?
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The undeceth-11 and undeceth-5 are ethoxylated surfactants used to emulsify the silicones. They have different HLB values. The reason two undeceth surfactants are used is the same reason we use two different HLB emulsifers when making a cream or lotion.
Here is an article that might be of interest.
http://www.dowcorning.com/content/publishedlit/22-1746.pdf
Hope this helps
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@ ozgirl thanks a lot to highlight a pretty basic point that I missed out, shoulda known from the name MICROEMULSION itself and to produce it you would need surfactants and to do it in the best possible way a combo of ethoxylated alcohols was chosen I suppose.
tnx again
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