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Conditioner Viscosity Loss
Hey everyone. I hope you all are doing well. I am trying to make a simple conditioner with SPDMA but when I adjust the pH, I experience significant viscosity loss. I’ve tried adding lactic acid 90% in the heated water phase, as well as after adding phase B. The next day it builds a bit of viscosity. Is this normal? I’ve also tried an iteration with 2% cetyl alcohol, but still the same result. I’ve high sheared it briefly, as well as made iterations via low shear only. Any advice helps greatly. Thank you.
Phase A:
Water- QS
Phase B:
SPDMA- 3%
Cetearyl Alcohol 70/30- 6%
Babassu Oil- 2%
Phase C:
Euxyl PE 9010- 0.5% (Phenoxyethanol, Ethylhexylglycerin)
Euxyl K12- 0.75% (Sodium Benzoate, Potassium Sorbate, Aqua, Water)
Fragrance- 0.4%
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5 Replies
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This should work just fine. I think you may be applying too much mixing there. Slow cool while slow mix and this should build, assuming your starting temp is > 75C. Finally, adding NaCl solution while at 25 - 35 C can build viscosity here too. A little bit o’ salt goes a long way and most formulators don’t know this works with cationic systems not just anionics.
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Roger that. I actually was heating to 75C and then adding phase B. I will increase temperature and mix under low shear. Thank you so much.
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I second @chemicalmatt. Low shear mixing during cooling is very important in these type of elulsions. Just out of curiosity, what’s your final pH?
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Thank you so much! I’ve been shooting for a pH of 4.5. Pretty much replicating the aussie conditioner. I have some here as a benchmark and the pH is at 4.53. However, they utilized glutamic acid as their buffer based on the LOI
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I agree with you. How long do you spend on it, and I’ll start with wordle unlimited free
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