Effect of Evening Primrose (Oenothera biennis) Oil Cake on the Properties of Polyurethane/Polyisocyanurate Bio-Composites

Paciorek‐Sadowska, Joanna; Borowicz, Marcin; Isbrandt, Marek

doi:10.3390/ijms22168950

Cited by 8 publications

(3 citation statements)

References 49 publications

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“…Natural fillers, currently, have gained considerable worldwide attention due to their ability to improve the performance characteristics of the final products. Several studies suggest that the incorporation of natural fillers such as primrose oil cake and walnut shells provide PUR foam composites with improved mechanical performance, thermal stability, and thermal insulation [ 12 , 13 ].…”

Section: Introductionmentioning

confidence: 99%

Impact of Sunflower Press Cake and Its Modification with Liquid Glass on Polyurethane Foam Composites: Thermal Stability, Ignitability, and Fire Resistance

et al. 2022

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Polyurethane (PUR) foams are some of the most promising thermal insulating materials because of their high flammability, but further applications are limited. Therefore, the development of flame-retardant materials with sufficient strength characteristics, water resistance, and low thermal insulating properties is of great importance to the modern building industry. This study evaluates the possibility of a vacuum-based liquid glass (LG) infusion into bio-based fillers, in this case, sunflower press cake (SFP) particles, to improve the mechanical performance, water absorption, thermal insulation, ignitability, thermal stability, and flame retardancy of the resulting polyurethane (PUR) foam composites. The main findings show that LG slightly improves the thermal stability and highly contributes to the ignitability and flame retardancy of the resulting products. Most importantly, from 10 wt.% to 30 wt.%, the SFP/LG filler reduces the thermal conductivity and water absorption values by up to 20% and 50%, respectively, and increases the compressive strength by up to 110%. The results obtained indicate that the proposed SFP/LG filler-modified PUR foam composites are suitable for applications as thermal insulation materials in building structures.

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Section: Introductionmentioning

confidence: 99%

Impact of Sunflower Press Cake and Its Modification with Liquid Glass on Polyurethane Foam Composites: Thermal Stability, Ignitability, and Fire Resistance

et al. 2022

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“…Paciorek-Sadowska et al obtained a new biopolyol based on Oenothera seed oil in a two-step method of epoxidation of double bonds and opening epoxy rings with 2,2′-mercaptodiethanol. This biopolyol was used as a raw material for the synthesis of closed-cell polyurethane-polyisocyanurate foams [ 15 , 16 ]. A future of using edible oils as a major alternative to petrochemical polyol may pose a critical issue of competition with food supplies.…”

Section: Introductionmentioning

confidence: 99%

Open-Cell Spray Polyurethane Foams Based on Biopolyols from Fruit Seed Oils

Kurańska,

Malewska,

Ożóg

et al. 2024

Polymers

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Natural oils from watermelon, cherry, black currant, grape and pomegranate fruit seeds were applied in the synthesis of biopolyols using the transesterification reaction. In this manuscript, the preparation possibility of open-cell foams from a polyurethane system in which petrochemical polyol was fully replaced with biopolyols is analyzed. Firstly, polyurethane foam systems were developed on a laboratory scale, and they were next tested under industrial conditions. It was shown that the foaming method has a significant impact on the foaming process and the cell structure of obtained foams as well as their thermal insulation properties. Based on the conducted research, it was found that the method of processing the polyurethane system has a significant impact on the properties of open-cell spray foams. Foams produced under industrial conditions have a much higher cell density, which has a positive effect on their selected physical–mechanical properties compared to foams produced on a laboratory scale. The open-cell biofoams obtained using a high-pressure machine had apparent densities 12–17 kg/m3, thermal conductivity coefficients 35–37 mW/m·K, closed-cell contents < 10% and were dimensionally stable at low and high temperatures.

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“…200 thousand tonnes consumed annually. 1,6 In addition, it is still anticipated that production will rise to 200 million tonnes in 2023 7 and between 4 and 10% by 2027. 8 The age of the seed, cultivar type, and the growth conditions all affect the oil content of EP seeds (EPO), which normally ranges between 18 and 25%.…”

Section: Introductionmentioning

confidence: 99%

Evening primrose oil: a comprehensive review of its bioactives, extraction, analysis, oil quality, therapeutic merits, and safety

Farag,

Reda,

Nabil

et al. 2023

Food Funct.

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Effect of Evening Primrose (Oenothera biennis) Oil Cake on the Properties of Polyurethane/Polyisocyanurate Bio-Composites

Cited by 8 publications

References 49 publications

Impact of Sunflower Press Cake and Its Modification with Liquid Glass on Polyurethane Foam Composites: Thermal Stability, Ignitability, and Fire Resistance

Impact of Sunflower Press Cake and Its Modification with Liquid Glass on Polyurethane Foam Composites: Thermal Stability, Ignitability, and Fire Resistance

Open-Cell Spray Polyurethane Foams Based on Biopolyols from Fruit Seed Oils

Evening primrose oil: a comprehensive review of its bioactives, extraction, analysis, oil quality, therapeutic merits, and safety

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