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J. Ryszkowska, M. Auguścik, M. Kurańska, R. Oliwa, J. Czech-Polak, A. Prociak

Preparation and characterization of poly(urea-urethane) elastomers
synthetized from rapeseed oil-based polyols. Part II. Thermal properties (in English)

Polimery 2017, No 2, 136


DOI: dx.doi.org/10.14314/polimery.2017.136

Summary

Fourier transform infrared spectroscopy (FT-IR) studies revealed that the content of urethane, urea, and allophanate groups in hard segments depends on the amount of biopolyol used for the synthesis of elastomers (Table 2). Replacement of polyol of petrochemical origin with a natural material can reduce greenhouse gas emissions, but it should not deteriorate heat resistance and fire resistance, which determine the suitability of obtained elastomers for technical applications (eg. in the mining industry). The thermogravimetric analysis (TGA) under atmosphere of nitrogen and air atmosphere as well as combined analysis TGA/FT-IR of the obtained PUUR samples in air (Tables 3–4, Figs. 1–3) have shown that use of a polyol rapeseed oil resulted in only a slight reduction in their heat resistance as compared to the sample prepared without biopolyol. Use of biopolyol slightly worsens the fire resistance (Tables 5–6, Figs. 4–6).
Keywords: poly(urea-urethane) elastomer, polyol from rapeseed oil, dicyandiamide, thermal degradation, flammability
e-mail: mauguscik@inmat.pw.edu.pl
J. Ryszkowska, M. Auguścik, M. Kurańska, R. Oliwa, J. Czech-Polak, A. Prociak (719.3 KB)
Preparation and characterization of poly(urea-urethane) elastomers synthetized from rapeseed oil-based polyols. Part II. Thermal properties (in English)