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Carbomer gel in Polyethylene glycol
Hello everyone!
I am working on a non-aqueous PEG 400-based carbomer gel, and struggling with how to make it quickly. I’m using Carbopol 974P and it swells very slowly in PEG-400.
Here is what I did:
- Dispersed Carbopol 974P in PEG-400 using a homogenizer speed 7000 rpm x 10 minutes.
- Heat the mixture to 70 degrees celsius and kept it there for nearly one hour.
- Then I left the mixture overnight at room temperature.
The next morning it hadn’t completely swollen and formed a gel.
If you guys have any recommendations, please let me know.
Thank you so much!
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2 Replies
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Is it really possible to make a gel without water? My assumption is your mixture just attracts water from the air and that’s why it is so slow.
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@JoongRi I am with @fareloz here: acrylics require some water to hydrate and gel, even if just a little. Rapidgel EZ1 from 3V Sigma will thicken a system like that quickly (it’s a PEG-6 solution already) but only if there is 3.0% water inside. Why not switch to a higher mw PEG? Viscosity increases with the polymer length.
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