Water based polyurethanes- flexible film former - emulsifier? - additives?
I am a student doing a project on water based polyurethanes for top coats on leather. My aim to make a PU that is a flexible film former with a molecular weight of 10,000 to 1,00,000. could any one suggest a suitable emulsifier and what HLB value is needed? what additives and cross linkers are recommended to make the resultant film water resistant? I would be grateful to anyone who could help me out on this.
Javed S.A. Student - India 2000
(No "dead threads" here! If this page isn't currently on the Hotline your Q, A, or Comment will restore it)
Disclaimer: It's not possible to fully diagnose a finishing problem or the hazards of an operation via these pages. All information presented is for general reference and does not represent a professional opinion nor the policy of an author's employer. The internet is largely anonymous & unvetted; some names may be fictitious and some recommendations might be harmful.
If you are seeking a product or service related to metal finishing, please check these Directories: