Aleksander Prociak
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.
Aleksander Prociak
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.
Aleksander Prociak
Czasopismo Techniczne, Chemia Zeszyt 1 Ch (17) 2015, 2015, s. 77-87
https://doi.org/10.4467/2353737XCT.15.107.4055This paper presents the effect of modification of expandable polystyrene beads (PSB) with an additional amount of physical blowing agent and the addition of ethylene wax on their properties. Three different sizes of PSB beads were analyzed. The bulk density and thermal properties – thermogravimetric and differential scanning calorimetry were evaluated.