Abstract
The dissolution time of rigid polyurethane foam (PUF) under various glycolysis conditions was examined in a detailed investigation of the glycolysis reactivity of PUF. PUF dissolution depended on the molecular weight of glycol. Dipropylene glycol and tetraethylene glycol dissolved PUF in the shortest time among polypropylene glycols and polyethylene glycols, respectively. PUF dissolution time was reduced to one-half for each 10 C rise in the range of 170–200 C. Also PUF dissolution time was inverselyproportional to KOH (catalyst) concentration. Dibutyltindilaurate concentration had less influence on PUF dissolution time than KOH concentration. Smaller PUF particles dissolved in a shorter time. Especially, the initial glycolysis conversion of PUF was proportional to the total surface area of PUF particles.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
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.