Influence of isocyanate index on selected properties of flexible polyurethane foams modified with various bio-components / Aleksander Prociak, Elżbieta Malewska, Szymon Bąk // Journal of Renewable Materials ... więcej

Influence of isocyanate index on selected properties of flexible polyurethane foams modified with various bio-components / Aleksander Prociak, Elżbieta Malewska, Szymon Bąk // Journal of Renewable Materials [Dokument elektorniczny]. – 2016, Vol. 4, No. 1, spec. iss., s. 78-85 : fot., tab., wykr. – Tryb dostępu: http://www.ingentaconnect.com/contentone/scrivener/jrm/2016/00000004/00000001/art00012. – Bibliogr. 19 poz., Abstr. – Mat. konf.: 6th Workshop on Green Chemistry and Nanotechnologies in Polymer Chemistry (GCNPC), Bragança, Portugal, 15-17.07.2015. – doi: 10.7569/JRM.2015.634129. – ISSN 2164-6341

In this article, the results of the foaming process analysis of flexible polyurethane with different isocyanate indexes are presented. Two types of flexible polyurethane foams (FPURF) were obtained: (1) ... więcej

In this article, the results of the foaming process analysis of flexible polyurethane with different isocyanate indexes are presented. Two types of flexible polyurethane foams (FPURF) were obtained: (1) by using petrochemical components and a rapeseed-oil-based polyol (used in the amount of 20 wt%), (2) by using petrochemical components and cellulose as a natural filler in the amount of 3 php (per hundred parts of polyol). The characteristic parameters of the foaming process, such as the foam's growth velocity, the core temperature and dielectric polarization, were measured using a Foamat device. Moreover, the following properties of flexible polyurethane foams were determined: apparent density, resilience, compressive strength, hardness, hysteresis and support factor, in order to determine the influence of isocyanate index on selected properties of the foams modified with bio-polyol and bio-filler.