Abstract

The coatings containing semi-interpenetrating polymer networks (semi-IPNs) were prepared from castor oil based polyurethane (PU) and nitrocellulose (NC) under different NCO/OH molar ratios of PU and PU/NC compositions. The results from TGA, TMA, DMA, FT-IR and SEM revealed improved thermal properties for semi-IPNs as compared to those of PU and the decomposition temperature of NC would be shifted from 200 °C to 220 °C. In this study, the formulation of NCO/OR = 1.2 and PU/NC = 70/30 had a best compatible system and ideal interpenetrating and got excellent and most balance on properties of coatings and films. In conclusion, the PU-NC semi-IPNs can be readily prepared and used for wooden coatings.

Talk to us

Join us for a 30 min session where you can share your feedback and ask us any queries you have

Schedule a call

Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.