Back to Search
Start Over
Two-component UV-curable waterborne CO2-based polyurethane dispersion with outstanding flexibility.
- Source :
- Journal of Coatings Technology & Research; Sep2023, Vol. 20 Issue 5, p1569-1578, 10p
- Publication Year :
- 2023
-
Abstract
- A series of two-component UV-curable waterborne CO<subscript>2</subscript>-based polyurethane dispersions (UV-PUDs) with excellent flexibility and mechanical strength were synthesized from poly(propylene carbonate) diol (PPCD), isophorone diisocyanate (IPDI), 2,2-bis(hydroxymethyl) propionic acid (DMPA), 2-hydroxyethyl acrylate (HEA), pentaerythritol triacrylate (PETA) and 1,4-butanediol (BDO). One component was UV-curable waterborne polyurethane terminated by HEA and PETA (molar ratio 1:1), and the other component was linear waterborne polyurethane. The content of the UV-curable component in UV-PUD was 15%, 30%, 45%, 60%, and 100% (weight content). The obtained cured films exhibited superior flexibility without loss of tensile strength, accompanied by excellent acid and alkali resistance. In particular, the dried UV-PUD films without curing showed good mechanical properties. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 19459645
- Volume :
- 20
- Issue :
- 5
- Database :
- Complementary Index
- Journal :
- Journal of Coatings Technology & Research
- Publication Type :
- Academic Journal
- Accession number :
- 173493028
- Full Text :
- https://doi.org/10.1007/s11998-023-00763-w