Rapeseed oil-based polyurethane foams modified with glycerol and cellulose micro/nanocrystals

2014 ◽  
Vol 132 (10) ◽  
pp. n/a-n/a ◽  
Author(s):  
Mirna A. Mosiewicki ◽  
Piotr Rojek ◽  
Sławomir Michałowski ◽  
Mirta I. Aranguren ◽  
Aleksander Prociak
Keyword(s):  
Rapeseed Oil ◽  
Polyurethane Foams

Cooperative effect of rapeseed oil-based polyol and egg shells on the structure and properties of rigid polyurethane foams

2020 ◽  
Vol 90 ◽  
pp. 106696 ◽  
Author(s):  
Milena Leszczyńska ◽  
Joanna Ryszkowska ◽  
Leonard Szczepkowski ◽  
Maria Kurańska ◽  
Aleksander Prociak ◽  
...  
Keyword(s):  
Rapeseed Oil ◽  
Cooperative Effect ◽  
Polyurethane Foams ◽  
Structure And Properties ◽  
Rigid Polyurethane Foams ◽  
Egg Shells

Polyols from recycled poly(ethylene terephthalate) flakes and rapeseed oil for polyurethane foams

Polimery ◽  
2015 ◽  
Vol 60 (09) ◽  
pp. 572-578 ◽  
Author(s):  
Aiga Paberza ◽  
Anda Fridrihsone-Girone ◽  
Arnis Abolins ◽  
Ugis Cabulis
Keyword(s):  
Rapeseed Oil ◽  
Ethylene Terephthalate ◽  
Polyurethane Foams ◽  
Poly Ethylene Terephthalate ◽  
Poly Ethylene

scholarly journals Rigid Polyurethane Foams with Various Isocyanate Indices Based on Polyols from Rapeseed Oil and Waste PET

Polymers ◽  
2020 ◽  
Vol 12 (4) ◽  
pp. 738 ◽  
Author(s):  
Aiga Ivdre ◽  
Arnis Abolins ◽  
Irina Sevastyanova ◽  
Mikelis Kirpluks ◽  
Ugis Cabulis ◽  
...  
Keyword(s):  
Thermal Conductivity ◽  
Rapeseed Oil ◽  
Crosslink Density ◽  
Polyurethane Foams ◽  
Insulation Material ◽  
Cell Content ◽  
Natural Sources ◽  
Isocyanate Index ◽  
Closed Cell

Developing polyols derived from natural sources and recycling materials attracts great interest for use in replacing petroleum-based polyols in polyurethane production. In this study, rigid polyurethane (PUR) foams with various isocyanate indices were obtained from polyols based on rapeseed oil and polyethylene terephthalate (RO/PET). The various properties of the prepared PUR foams were investigated, and the effect of the isocyanate index was evaluated. The closed-cell content and water absorption were not impacted by the change of the isocyanate index. The most significant effect of increasing the isocyanate index was on the dimensional stability of the resulting foams. This is due to the increased crosslink density, as evidenced by the increased formation of isocyanurate and increase of the glass transition temperature. Additionally, the influence on compression strength, modulus, and long-term thermal conductivity were evaluated and compared with reference PUR foams from commercially available polyols. Rigid PUR foams from RO/PET polyol were found to be competitive with reference materials and could be used as thermal insulation material.

scholarly journals Bio-Based Rigid Polyurethane Foams Modified with Phosphorus Flame Retardants

Polymers ◽  
2021 ◽  
Vol 14 (1) ◽  
pp. 102
Author(s):  
Marcin Zemła ◽  
Aleksander Prociak ◽  
Sławomir Michałowski
Keyword(s):  
Rapeseed Oil ◽  
Flame Retardants ◽  
Thermal Conductivity Coefficient ◽  
Oxygen Index ◽  
Cell Structure ◽  
Polyurethane Foams ◽  
Triethyl Phosphate ◽  
Rigid Polyurethane Foams ◽  
Foaming Process ◽  
Cone Calorimeter Test

Rigid polyurethane foams (RPURF) containing a bio-polyol from rapeseed oil and different phosphorus-based flame retardants were obtained. Triethyl phosphate (TEP), dimethyl propane phosphonate (DMPP) and cyclic phosphonates Addforce CT 901 (20 parts per hundred polyol by weight) were used in the synthesis of RPURF. The influence of used flame retardants on foaming process, cell structure, and physical–mechanical properties as well as flammability of RPURF were examined. The addition of flame retardants influenced the parameters of the cellular structure and decreased compressive strength. All obtained foam materials had a low thermal conductivity coefficient, which allows them to be used as thermal insulation. The research results of bio-based RPURF were compared with foams obtained without bio-polyol. All modified materials had an oxygen index above 21 vol%; therefore, they can be classified as self-extinguishing materials. The analysis of parameters obtained after the cone calorimeter test showed that the modified RPURF have a lower tendency to fire development compared to the reference foams, which was particularly noticeable for the materials with the addition of DMPP.

Microcellulose as a natural filler in polyurethane foams based on the biopolyol from rapeseed oil

Polimery ◽  
2016 ◽  
Vol 61 (09) ◽  
pp. 625-632 ◽  
Author(s):  
Maria Kuranska ◽  
Aleksander Prociak ◽  
Slawomir Michalowski ◽  
Ugis Cabulis ◽  
Mikelis Kirpluks
Keyword(s):  
Rapeseed Oil ◽  
Polyurethane Foams ◽  
Natural Filler

The effect of various rapeseed oil-based polyols on selected properties of flexible polyurethane foams

Polimery ◽  
2016 ◽  
Vol 61 (11/12) ◽  
pp. 799-806 ◽  
Author(s):  
Elzbieta Malewska ◽  
Szymon Bak ◽  
Maria Kuranska ◽  
Aleksander Prociak
Keyword(s):  
Rapeseed Oil ◽  
Polyurethane Foams ◽  
Flexible Polyurethane
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