Maria Kurańska
Czasopismo Techniczne, Budownictwo Zeszyt 5-B (19) 2014 , 2014, s. 149-152
https://doi.org/10.4467/2353737XCT.14.351.3662In this paper, the influence of raw materials from renewable sources in the form of rapeseed oil-based polyols on thermal conductivity and the cell structure of rigid polyurethane- -polyisocyanurate foams was presented. Bio-polyols were prepared by the following methods: transesterification, transamidization and two-steps method of epoxidation and oxirane rings opening.
Maria Kurańska
Czasopismo Techniczne, Chemia Zeszyt 1 Ch (17) 2015, 2015, s. 47-54
https://doi.org/10.4467/2353737XCT.15.104.4052The influence of flax fibers on the physical and mechanical properties and the flammability of rigid polyurethane-polyisocyanurate foams obtained from rapeseed oil-based polyol was analyzed. The rigid polyurethane-polyisocyanurate foams with apparent density of 40−48 kg/m3 were prepared. It has been found that the introduction of flax fiber has a beneficial effect on selected properties of obtained foams.