• Formulating

  Copolymers

  Posted by mshariq84 on March 2, 2020 at 6:34 pm

  Hi

  Is 5% PVP K90 alone, sufficient for holding/fixation or is it necessary to add PVP/VA copolymers with PVP K 90?

  Can i use polyquaternium-4 with pvp k90?

  Thanks

  mshariq84 replied 5 years ago 4 Members · 8 Replies
• 8 Replies

• 

  OldPerry

  Professional Chemist / Formulator

  March 2, 2020 at 8:34 pm

  PVP K90 will work alone. But it might be sticky in humid weather.

• 

  mshariq84

  Member

  March 2, 2020 at 8:36 pm

  Can i use polyquaternium-4 with pvp k90?

• 

  OldPerry

  Professional Chemist / Formulator

  March 2, 2020 at 9:38 pm

  Yes

• 

  mshariq84

  Member

  March 2, 2020 at 11:23 pm

  Solution A

  Water 71.3%
  Carbomer 0.5%
  Disodium EDTA 0.2%
  Glycerin 0.5%
  Germall Plus 1%

  Solution B

  Water 20%
  PVP K90 3%
  Polyquaternium-4 2%

  Solution C

  PEG40 Hydrogenised Castor Oil 0.8%
  Fragrance 0.2%

  Solution D

  Solution C + Solution B
  Triethanolamine TEA 0.5

  When mixing solution D in Solution A, creates cloudy, bubbly watery liquid not gel.

  What could be a problem here?

  Thanks in advance.

• 

  Chemist77

  Member

  March 3, 2020 at 1:00 am

  Neutralize the carbomer first and then add the PVP solution.
  Polyquaternium -4 is a cationic, try with and without as carbomer is anionic. 

• 

  bil7

  Member

  March 5, 2020 at 3:46 pm

  I think you can also try out by polyquaternium 11 work very fine .

• 

  mshariq84

  Member

  March 12, 2020 at 5:08 pm

  I neutrilize the carbomer first, got a good gel but as soon as i introduced PVP solution, lost gel consistency.

  Should I use PVP carbomer in 1:1?

  @Perry @Chemist77 

• 

  mshariq84

  Member

  March 12, 2020 at 5:09 pm

  Same issue when I tried HEC instead of Carbomer.

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