Effect of Borate Groups on the Properties of Rigid Polyurethane Foams Obtained with Using Hydroxypropyl Derivatives of Urea

Iwona Zarzyka
Affiliation: 
Department of Organic Chemistry, Faculty of Chemistry, Rzeszow University of Technology, 6, Powstancow Warszawy Al., 35-959 Rzeszow, Poland; izarzyka@prz.edu.pl
DOI: 
https://doi.org/10.23939/chcht07.02.147
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Abstract: 
By using hydroxypropyl derivatives of urea esterified with boric acid as polyol components and 4,4’-diphenylmethane diisocyanate the rigid polyurethane foams have been obtained. The influence of boron and nitrogen atoms on the properties of foams, inter alia compressive strength and flammability, has been discussed. The presence of borate groups enhances the compressive strength of polyurethane foams meaningfully. However, the flammability of foams is determined by the participation of carbamide groups mainly.
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