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

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.

Effect of different concentration of rapeseed oil and recycled poly (ethylene terephthalate) in polyols for rigid polyurethane foams

2016 ◽  
Vol 54 (2) ◽  
pp. 161-177 ◽  
Author(s):  
Aiga Ivdre ◽  
Anda Fridrihsone-Girone ◽  
Arnis Abolins ◽  
Ugis Cabulis
Keyword(s):  
Thermal Insulation ◽  
Rapeseed Oil ◽  
Ethylene Terephthalate ◽  
Polyurethane Foams ◽  
Raw Material ◽  
Rigid Polyurethane Foams ◽  
Blowing Agent ◽  
Poly Ethylene Terephthalate ◽  
Poly Ethylene

In this research, polyols from rapeseed oil and recycled poly(ethylene terephthalate) were synthesized by two-step continuous synthesis with a different rapeseed oil and poly(ethylene terephthalate) concentration. All rapeseed oil/poly(ethylene terephthalate) polyols showed complete compatibility with blowing agent Solkane 365/227. The resulting polyols were used to prepare rigid polyurethane foams which were characterized with various techniques for determination of their physical, mechanical and thermal insulation properties. The effect of rapeseed oil and poly(ethylene terephthalate) concentrations in polyols on the characteristics of rigid polyurethane foams was investigated. The results showed that obtained rigid polyurethane foams were suitable for thermal insulation appliance. Also, the potential use of rapeseed oil as raw material combined with poly(ethylene terephthalate) to synthesize polyols with good compatibility with blowing agent was confirmed.

Structure and properties of polyurethane foams obtained from rapeseed oil polyols

2006 ◽  
Vol 55 (2) ◽  
pp. 101
Author(s):  
I Beverte ◽  
U Cabulis ◽  
M Misane ◽  
I Sevastyanova ◽  
U Stirna
Keyword(s):  
Rapeseed Oil ◽  
Polyurethane Foams ◽  
Structure And Properties

scholarly journals Fly Ash as an Eco-Friendly Filler for Rigid Polyurethane Foams Modification

Materials ◽  
2021 ◽  
Vol 14 (21) ◽  
pp. 6604
Author(s):  
Monika Kuźnia ◽  
Anna Magiera ◽  
Beata Zygmunt-Kowalska ◽  
Katarzyna Kaczorek-Chrobak ◽  
Kinga Pielichowska ◽  
...  
Keyword(s):  
Fly Ash ◽  
Coal Combustion ◽  
Power Plants ◽  
Polyurethane Foams ◽  
Mechanical And Thermal Properties ◽  
Rigid Polyurethane Foam ◽  
Structure And Properties ◽  
Rigid Polyurethane Foams ◽  
Polyurethane Composites ◽  
Thermal Stability Of

There is currently a growing demand for more effective thermal insulation materials with the best performance properties. This research paper presents the investigation results on the influence of two types of filler on the structure and properties of rigid polyurethane foam composites. Fly ash as a product of coal combustion in power plants and microspheres of 5, 10, 15, and 20 wt.%, were used as rigid polyurethane foams modifiers. The results of thermal analysis, mechanical properties testing, and cellular structure investigation performed for polyurethane composites show that the addition of fly ash, up to 10 wt.%, significantly improved the majority of the tested parameters. The use of up to 20 wt.% of microspheres improves the mechanical and thermal properties and thermal stability of rigid polyurethane foams.

Preparation and characterisation of rigid polyurethane foams using a rapeseed oil-based polyol

2015 ◽  
Vol 74 ◽  
pp. 887-897 ◽  
Author(s):  
Milena Zieleniewska ◽  
Michał K. Leszczyński ◽  
Maria Kurańska ◽  
Aleksander Prociak ◽  
Leonard Szczepkowski ◽  
...  
Keyword(s):  
Rapeseed Oil ◽  
Polyurethane Foams ◽  
Rigid Polyurethane Foams
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