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English
Published
: 2021-01-15
Preparation and characterization of poly(urea-urethane) elastomers synthetized from rapeseed oil-based polyols. Part II. Thermal properties
Abstract
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).
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Ryszkowska, J., Auguścik, M., Kurańska, M., Oliwa, R., Czech-Polak, J., & Prociak, A. (2021). Preparation and characterization of poly(urea-urethane) elastomers synthetized from rapeseed oil-based polyols. Part II. Thermal properties. Polimery, 62(2), 136-143. https://doi.org/10.14314/polimery.2017.136
