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Effect of different polymers on foam stabilization of surfactants
For a cleansing product, Innospec suggests 0.05-0.1% guar gum as a foam stabilizer.
I am using 0.1% xanthan gum for this purpose.
This data from Ashland shows 0.2% HPMC has almost no effect but 0.4% stabilizes foam and 0.6% increases the stability.
My questions are:
1. Is there any general rule that how much polymer or what ratio of polymer/surfactant is best to stabilize foam?2. Does all polymers specially these three (xanthan gum, HPMC, guar gum) have same effect on foam stabilizing or some are more effective than others?
0.05- 0.1% guar gum vs 0.4-0.6% HPMC suggested by suppliers for this purpose.3. What is the best or most effective polymer for surfactant foam stabilization?
4. which property or i can say, what in a polymer causes foam stabilization so i can use a polymer that has more of that?
5. Should polymer be use in a ratio with surfactants like more surfactant, more polymer or less polymer and vice versa, or surfactant % doesn’t have any relation with amount of polymer needed for foam stabilization?
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