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I. Zarzyka

Preparation and properties of polyurethane foams obtained with hydroxyethyl derivatives

of oxamide modified with boric acid (Eng.)

Polimery 2013, No 3, 195


DOI: dx.doi.org/10.14314/polimery.2013.195

Summary

The homogeneous mixture of N,N'-bis(2-hydroxyethyl)oxamide (BHEOD) and boric acid reacted with an excess of ethylene carbonate (EC). Obtained hydroxyethyl derivatives of oxamide (OD) modified with boric acid are characterized by high thermal stability and exhibit physical properties of typical polyols used in the preparation of foamed polyurethane materials. The rigid polyurethane foams obtained with the use of these derivatives and 4,4'-diphenylmethane diisocyanate exhibited higher thermal stability and compressive strength compared to the foams obtained from hydroxyethyl derivatives of oxamide without boric acid.


Key words: N,N'-bis(2-hydroxyethyl)oxamide, boric acid, ethylene carbonate, product structure, rigid polyurethane foams, thermal stability and compressive strength.

e-mail: izarzyka@prz.edu.pl

I. Zarzyka (783.6 KB)
Preparation and properties of polyurethane foams obtained with hydroxyethyl derivatives of oxamide modified with boric acid (Eng.)