Article
Biochemistry & Molecular Biology
Fabio Hernandez-Ramos, Maria Gonzalez Alriols, M. Mirari Antxustegi, Jalel Labidi, Xabier Erdocia
Summary: This study proposes the use of crude glycerol and microwave-assisted liquefaction as substitutes for conventional methods and commercial glycerol to enhance the sustainability on the production of bio-polyols. Bio-polyols with suitable properties for producing elastic and rigid polyurethanes were synthesized using organosolv lignins and polyethylene glycol as solvents and sulphuric acid as a catalyst. Several parameters were analyzed, indicating the suitability of the bio-polyols for polyurethane synthesis.
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2023)
Article
Green & Sustainable Science & Technology
Krzysztof Polaczek, Maria Kuranska, Aleksander Prociak
Summary: This article discusses the potential of using used cooking oil as a feedstock for producing open-cell polyurethane foam. The study focuses on the effects of bio-polyol properties on the properties of the final foam, and the key step in the synthesis of bio-polyols. The results show that the foams produced using used cooking oil-based polyols have comparable properties to commercial products.
JOURNAL OF CLEANER PRODUCTION
(2022)
Article
Polymer Science
Marcin Zemla, Aleksander Prociak, Slawomir Michalowski
Summary: Rigid polyurethane foams (RPURF) containing bio-polyol from rapeseed oil and different phosphorus-based flame retardants were synthesized. The addition of flame retardants influenced the cellular structure and compressive strength of the foams, but all materials still had low thermal conductivity coefficients suitable for thermal insulation. The modified RPURF showed lower tendency to fire development compared to the reference foams.
Article
Polymer Science
Joo Hyung Lee, Seong Hun Kim, Kyung Wha Oh
Summary: In this study, castor oil was utilized as a sustainable resource to synthesize multifunctional polyols for the production of polyurethane foam, aiming to improve production efficiency, sustainability, and compressive strength. The results demonstrated that using multifunctional polyol blends to fabricate polyurethane foams effectively enhances their compressive properties. The findings are expected to broaden the applications of bio-based polyurethane foams.
Article
Polymer Science
Adam Olszewski, Paulina Kosmela, Lukasz Piszczyk
Summary: Currently, scientists are seeking renewable resources to replace petrochemicals in the plastics industry. This study evaluates the impact of polyethylene glycols (PEG) with different molecular mass on the properties of bio-based polyols synthesized from cellulose biomass liquefaction. The results show that the liquefaction solvent molecular mass affects the hydroxyl value, viscosity, and water content of the bio-polyols. These findings contribute to a better understanding of the properties of bio-polyols and polyurethane materials.
JOURNAL OF APPLIED POLYMER SCIENCE
(2023)
Article
Polymer Science
Wen Jiang, Reza Hosseinpourpia, Vladimirs Biziks, Sheikh Ali Ahmed, Holger Militz, Stergios Adamopoulos
Summary: Polyurethane adhesives prepared with bio-polyols from wood sawdust liquefaction via acid-catalysis showed varied chemical structure and thermal behavior at different NCO:OH molar ratios, with the highest shear strength observed at a ratio of 1.5:1.
Article
Agricultural Engineering
Chun Chang, Liwei Liu, Pan Li, Guizhuan Xu, Chunbao Xu (Charles)
Summary: Both wheat straw and crude glycerol were used as feedstocks to produce biopolyols through liquefaction process. The synthesized biopolyols were further used to prepare flame-retardant PU foams with the incorporation of flame retardants, resulting in improved fire performance.
INDUSTRIAL CROPS AND PRODUCTS
(2021)
Article
Chemistry, Physical
Maria Kuranska, Ugis Cabulis, Aleksander Prociak, Krzysztof Polaczek, Katarzyna Uram, Mikelis Kirpluks
Summary: This article compares the properties of closed-cell PUR bio-foams produced on a laboratory scale and on an industrial scale, and found that the foams modified with the bio-polyol have higher compressive strength at low temperatures.
Article
Materials Science, Characterization & Testing
Jungha Lee, Jung Hyeun Kim
Summary: In this study, castor oil-based bio-polyol and two types of gelling catalysts were used to synthesize PU foams. The effects of bio-polyol content and catalyst type on sound absorption, compression strength, and VOCs emission were examined. The results showed that increasing bio-polyol content and using a tin catalyst resulted in smaller cavity and pore sizes, leading to higher sound absorption and compression strength. Moreover, the application of bio-polyol also reduced VOCs emissions from foam degradation. Therefore, using bio-derived polyol holds promise for reducing environmental issues in industrial applications.
Article
Green & Sustainable Science & Technology
Paula Quinteiro, Nuno V. Gama, Artur Ferreira, Ana Claudia Dias, Ana Barros-Timmons
Summary: This study compares the environmental impacts of rigid polyurethane foams (PUFs) produced using crude oil and bioderived glycerol. The results show that the different formulations used have varying impacts and that bioderived feedstocks do not always have environmental superiority over fossil feedstocks. Additionally, the recovery of glycerol from PUF waste has a greater environmental impact compared to the recycling of the waste itself and the partial replacement of virgin glycerol.
JOURNAL OF CLEANER PRODUCTION
(2022)
Article
Polymer Science
Fernanda R. Vieira, Nuno V. Gama, Dmitry V. Evtuguin, Carlos O. Amorim, Vitor S. Amaral, Paula C. O. R. Pinto, Ana Barros-Timmons
Summary: Rigid polyurethane foams (RPUFs) were synthesized using lignin-based polyol obtained through the reaction of kraft lignin with propylene carbonate. The formulations were optimized to achieve low thermal conductivity and low density for lightweight insulation. The resulting bio-based RPUFs exhibited comparable properties to commercial RPUFs and showed potential as a replacement for petroleum-based RPUFs. This study introduces a novel approach using 100% unpurified lignin-based polyol in the production of RPUFs.
Article
Biochemistry & Molecular Biology
Marcin Borowicz, Marek Isbrandt, Joanna Paciorek-Sadowska
Summary: The research aimed to obtain two new eco-polyols based on waste polylactide (PLA) and tested their effects on rigid polyurethane and polyisocyanurate foams. Analysis showed that partial replacement of petrochemical polyol by eco-polyols resulted in better performance in terms of density, compressive strength, brittleness, water absorption, and aging resistance for both RPU/PIR and PRU foams.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2021)
Article
Agricultural Engineering
Qiulin Ma, Kai Fu, Jingyang Zhang, Mengyu Li, Xiuli Han, Zhiyong Chen, Liyang Ma, Chun Chang
Summary: Exploring novel applications for solid waste in industrial production, such as utilizing crude glycerol to synthesize bio-based polyols, reduces production costs and promotes sustainable development. The addition of humins-based residues to bio-based polyurethane foams enhances their mechanical properties and thermal insulation. The foams exhibit comparable performance to those using cellulose-based fillers and offer economic and environmental benefits.
INDUSTRIAL CROPS AND PRODUCTS
(2023)
Article
Materials Science, Characterization & Testing
Marzena Szpilyk, Renata Lubczak, Jacek Lubczak
Summary: A new polyol was synthesized from cellulose, glycidol, and ethylene carbonate for rigid polyurethane foam production, showing similar physical properties, superior thermal resistance, and good biodegradability in soil. The foam exhibited improved compressive strength after thermal exposure and 70-80% biodegraded within 28 days in soil.
Article
Polymer Science
Gabriel Kiss, Gerlinde Rusu, Geza Bandur, Iosif Hulka, Daniel Romecki, Francisc Peter
Summary: The study showed that using recycled polyol as a replacement for fossil-based polyol in flexible polyurethane foam production can maintain similar physical properties at low density. By optimizing the formulation at high levels of recycled polyol, it is possible to reduce the emission of volatile organic compounds, opening the way for further studies to increase PU waste reutilization and decrease petroleum-based raw materials.
Article
Chemistry, Applied
Mahdi Ansari Chaharsoughi, Saeed Kazemi Najafi, Rabi Behrooz
JOURNAL OF VINYL & ADDITIVE TECHNOLOGY
(2019)
Article
Polymer Science
H. Abdollahi, A. Salimi, M. Barikani, A. Samadi, S. Hosseini Rad, A. R. Zanjanijam
JOURNAL OF APPLIED POLYMER SCIENCE
(2019)
Article
Chemistry, Applied
Fatemeh Mojerlou, Moslem Mansour Lakouraj, Mehdi Barikani, Abbas Mohammadi
CARBOHYDRATE POLYMERS
(2019)
Article
Chemistry, Applied
Hossein Khanjanzadeh, Rabi Behrooz, Nader Bahramifar, Stefan Pinkl, Wolfgang Gindl-Altmutter
CARBOHYDRATE POLYMERS
(2019)
Article
Engineering, Multidisciplinary
Seyedeh Masumeh Ghaseminezhad, Mehdi Barikani, Mehdi Salehirad
COMPOSITES PART B-ENGINEERING
(2019)
Article
Materials Science, Multidisciplinary
Atefeh Torabi, Maryam Sahraro, Mehdi Barikani, Hamed Daemi
Article
Polymer Science
Fatemeh Mojerlou, Mehdi Barikani, Moslem Mansour Lakouraj, Vahid Hasantabar
IRANIAN POLYMER JOURNAL
(2020)
Article
Environmental Sciences
Seyed Mostafa Hashemi Sangtarashani, Mehdi Rahmaninia, Rabi Behrooz, Amir Khosravani
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2020)
Article
Chemistry, Applied
Mahsa Barzegar, Rabi Behrooz, Hamid Reza Mansouri, Saeed Kazemi Najafi, Linda F. Lorenz, Charles R. Frihart
JOURNAL OF THE AMERICAN OIL CHEMISTS SOCIETY
(2020)
Article
Materials Science, Multidisciplinary
Shazia Naheed, Mohammad Zuber, Mehdi Barikani, Mahwish Salman
Summary: In this study, a series of polyurethane elastomers based on H12MDI/1,2-ethanediol with different molecular weights of polycaprolactone diols as soft segments were successfully synthesized by a two step technique. The crystallinity and hydrophilicity of the polymer films increased with longer soft segment chain lengths. Moreover, the degree of micro-phase separation was found to increase with higher molecular weights of polyols, as confirmed by XRD diffractogram results.
MATERIALS SCIENCE AND ENGINEERING B-ADVANCED FUNCTIONAL SOLID-STATE MATERIALS
(2021)
Article
Biochemistry & Molecular Biology
Maryam Sahraro, Mehdi Barikani, Hamed Daemi, Payam Baei
Summary: In this study, multifunctional polyurethane nanoparticles (MPUNs) were embedded into methacrylated gellan gum to prepare stimuli-responsive hydrogels with improved mechanical properties. The optimized formulation showed excellent compression strength and ultimate strain, as well as the ability to restore its original shape after repeated compression tests. The hydrogels exhibited a dual physical and chemical crosslinking mechanism and were found to be non-toxic to human dermal fibroblast cells, making them suitable for soft tissue engineering applications.
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2021)
Article
Materials Science, Paper & Wood
Soheyla Daneshvar, Rabi Behrooz, Saeed Kazemi Najafi, Gity Mir Mohamad Sadeghi
Proceedings Paper
Materials Science, Paper & Wood
A. Khosravani, M. Pourjafar, R. Behrooz
WOOD AND BIOFIBER INTERNATIONAL CONFERENCE (WOBIC 2017)
(2018)
Article
Materials Science, Paper & Wood
Mohammad Pourjafar, Amir Khosravani, Rabi Behrooz
Article
Materials Science, Paper & Wood
Fateme Rezaei, Rabi Behrooz, Shahram Arbab, Ehsanollah Nosratian Sabet
