Thermal and Mechanical Properties of Microporous Polyurethanes Modified with Reduced Graphene Oxide

Autor: Michał Strankowski, Damian Włodarczyk, Łukasz Piszczyk, Justyna Strankowska
Jazyk: angličtina
Rok vydání: 2016
Předmět:
Zdroj: International Journal of Polymer Science, Vol 2016 (2016)
Druh dokumentu: article
ISSN: 1687-9422
1687-9430
DOI: 10.1155/2016/8070327
Popis: Microporous polyurethanes (MPU) were modified by adding 0.25%–1.25 wt% of reduced graphene oxide (RGO). The materials were prepared without solvent via in situ polymerization. From a technological point of view, it is very important to obtain functional materials by using reacting compounds only. The thermal characteristics of obtained MPU were investigated using TGA, DSC, and DMA techniques. In comparison to nonmodified microporous polyurethane, the thermal stability and mechanical properties of the modified systems have significantly improved. The temperature corresponding to the maximum degradation rate (Tmax) for nanocomposites containing 1% and 1.25 wt% of RGO was 51°C higher than that observed for pure microporous PU system. The increase of tensile strength was also observed for matrix with the addition of 0.5 wt% RGO nanofiller.
Databáze: Directory of Open Access Journals
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