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Olszewski A, Kosmela P, Vēvere L, Kirpluks M, Cabulis U, Piszczyk Ł. Effect of bio-polyol molecular weight on the structure and properties of polyurethane-polyisocyanurate (PUR-PIR) foams. Sci Rep 2024; 14:812. [PMID: 38191496 PMCID: PMC10774441 DOI: 10.1038/s41598-023-50764-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2023] [Accepted: 12/25/2023] [Indexed: 01/10/2024] Open
Abstract
The increasing interest in polyurethane materials has raised the question of the environmental impact of these materials. For this reason, the scientists aim to find an extremely difficult balance between new material technologies and sustainable development. This work attempts to validate the possibility of replacing petrochemical polyols with previously synthesized bio-polyols and their impact on the structure and properties of rigid polyurethane-polyisocyanurate (PUR-PIR). To date, biobased polyols were frequently used in the manufacturing of PU, but application of bio-polyols synthesized via solvothermal liquefaction using different chains of polyethylene glycol has not been comprehensively discussed. In this work, ten sets of rigid polyurethane foams were synthesized. The influence of bio-polyols addition on foam properties was investigated by mechanical testing, thermogravimetric analysis (TGA), and cone calorimetry. The structure was determined by scanning electron microscopy (SEM) and a gas pycnometer. The tests revealed a significant extension of foam growth time, which can be explained by possible steric hindrances and the presence of less reactive secondary hydroxyl groups. Moreover, an increase average size of pores and aspect ratio was noticed. This can be interpreted by the modification of the cell growth process by the introduction of a less reactive bio-polyol with different viscosity. The analysis of foams mechanical properties showed that the normalized compressive strength increased up to 40% due to incorporation of more cross-linked structures. The thermogravimetric analysis demonstrated that the addition of bio-based polyols increased temperature of 2% (T2%) and 5% (T5%) mass degradation. On the other hand, evaluation of flammability of manufactured foams showed increase of total heat release (HRR) and smoke release (TSR) what may be caused by reduction of char layer stability. These findings add substantially to our understanding of the incorporation of bio-polyols into industrial polyurethane systems and suggest the necessity of conducting further research on these materials.
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Affiliation(s)
- Adam Olszewski
- Department of Polymer Technology, Chemical Faculty, Gdansk University of Technology, G. Narutowicza St. 11/12, 80-233, Gdansk, Poland.
- Advanced Materials Center, Gdańsk University of Technology, Gabriela Narutowicza 11/12, 80-233, Gdańsk, Poland.
| | - Paulina Kosmela
- Department of Polymer Technology, Chemical Faculty, Gdansk University of Technology, G. Narutowicza St. 11/12, 80-233, Gdansk, Poland
- Advanced Materials Center, Gdańsk University of Technology, Gabriela Narutowicza 11/12, 80-233, Gdańsk, Poland
| | - Laima Vēvere
- Polymer Laboratory, Latvian State Institute of Wood Chemistry, Dzerbenes 27, Riga, 1006, Latvia
| | - Mikelis Kirpluks
- Polymer Laboratory, Latvian State Institute of Wood Chemistry, Dzerbenes 27, Riga, 1006, Latvia
| | - Ugis Cabulis
- Polymer Laboratory, Latvian State Institute of Wood Chemistry, Dzerbenes 27, Riga, 1006, Latvia
| | - Łukasz Piszczyk
- Department of Polymer Technology, Chemical Faculty, Gdansk University of Technology, G. Narutowicza St. 11/12, 80-233, Gdansk, Poland
- Advanced Materials Center, Gdańsk University of Technology, Gabriela Narutowicza 11/12, 80-233, Gdańsk, Poland
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Uricchio A, Lasalandra T, Tamborra ERG, Caputo G, Mota RP, Fanelli F. Atmospheric Pressure Plasma-Treated Polyurethane Foam as Reusable Absorbent for Removal of Oils and Organic Solvents from Water. MATERIALS (BASEL, SWITZERLAND) 2022; 15:7948. [PMID: 36431434 PMCID: PMC9693071 DOI: 10.3390/ma15227948] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/09/2022] [Revised: 11/04/2022] [Accepted: 11/08/2022] [Indexed: 06/16/2023]
Abstract
This paper reports the optimization of a two-step atmospheric pressure plasma process to modify the surface properties of a polyurethane (PU) foam and, specifically, to prepare a superhydrophobic/superoleophilic absorbent for the removal of oils and nonpolar organic solvents from water. In particular, in the first step, an oxygen-containing dielectric barrier discharge (DBD) is used to induce the etching/nanotexturing of the foam surfaces; in the second step, an ethylene-containing DBD enables uniform overcoating with a low-surface-energy hydrocarbon polymer film. The combination of surface nanostructuring and low surface energy ultimately leads to simultaneous superhydrophobic and superoleophilic wetting properties. X-ray photoelectron spectroscopy, scanning electron microscopy and water contact angle measurements are used for the characterization of the samples. The plasma-treated PU foam selectively absorbs various kinds of hydrocarbon-based liquids (i.e., hydrocarbon solvents, mineral oils, motor oil, diesel and gasoline) up to 23 times its own weight, while it completely repels water. These absorption performances are maintained even after 50 absorption/desorption cycles and after immersion in hot water as well as acidic, basic and salt aqueous solutions. The plasma-treated foam can remove mineral oil while floating on the surface of mineral oil/water mixtures with a separation efficiency greater than 99%, which remains unaltered after 20 separation cycles.
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Affiliation(s)
- Antonella Uricchio
- Department of Chemistry, University of Bari “Aldo Moro”, Via Orabona 4, 70125 Bari, Italy
| | - Teresa Lasalandra
- Department of Chemistry, University of Bari “Aldo Moro”, Via Orabona 4, 70125 Bari, Italy
| | - Eliana R. G. Tamborra
- Department of Chemistry, University of Bari “Aldo Moro”, Via Orabona 4, 70125 Bari, Italy
| | - Gianvito Caputo
- Nanochemistry Department, Istituto Italiano di Tecnologia, Via Morego 30, 16163 Genoa, Italy
| | - Rogério P. Mota
- Department of Physics, Faculty of Engineering and Science, São Paulo State University (UNESP), 12516-410 Guaratinguetá, SP, Brazil
| | - Fiorenza Fanelli
- Institute of Nanotechnology (NANOTEC), National Research Council (CNR), c/o Department of Chemistry, University of Bari “Aldo Moro”, Via Orabona 4, 70125 Bari, Italy
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Development of a Novel Biobased Polyurethane Resin System for Structural Composites. Polymers (Basel) 2022; 14:polym14214553. [DOI: 10.3390/polym14214553] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2022] [Revised: 10/05/2022] [Accepted: 10/21/2022] [Indexed: 11/16/2022] Open
Abstract
Polyurethanes are gaining increasing interest for their use as structural components subjected to cyclic loads, such as leaf springs. Thermoset polyurethane (PUR) based technology offers some advantages, such as fatigue resistance, low viscosity, and fast curing. However, current PUR formulations present two major drawbacks: their petrochemical origin and high reactivity. The aim of this work was to develop a novel biobased PUR (BIO-PUR) with the required mechanical properties and processability for manufacturing structural composites by resin transfer moulding (RTM). For this purpose, a high functionality and high hydroxyl index castor-oil-based polyol was used combined with a biobased glycerol (BIO-Gly) to increase the crosslinking density and improve the final properties of the BIO-PUR. The viscosity and reactivity of the different systems were studied by means of rheology tests and differential scanning calorimetry (DSC). Thermal and mechanical properties were studied by dynamic mechanical analysis (DMA) and flexural tests. Furthermore, the RTM process of a representative part was simulated and validated through the manufacturing and testing of plates. The properties of the BIO-PUR resin systems were strongly influenced by the addition of biobased glycerol and its effect on the crosslinking density. The combination of a high functionality and hydroxyl index biobased polyol with the biobased glycerol resulted in a high-performance BIO-PUR with the required reactivity and final properties for structural applications.
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Naguib M, Yassin MA, Rehim MA. Antimicrobial Polyurethane Films Based on Quaternary Ammonium Salts Functionalized Soybean Oil. MACROMOL CHEM PHYS 2022. [DOI: 10.1002/macp.202200231] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Mohamed Naguib
- Polymer and Pigments Department National Research Centre Cairo Egypt
- Advanced Materials and Nanotechnology Lab. Center of Excellence National Research Centre Cairo Egypt
| | - Mohamed A. Yassin
- Advanced Materials and Nanotechnology Lab. Center of Excellence National Research Centre Cairo Egypt
- Packaging Materials Department National Research Centre Elbehoth Street 12622 Dokki, Cairo Egypt
| | - Mona Abdel Rehim
- Packaging Materials Department National Research Centre Elbehoth Street 12622 Dokki, Cairo Egypt
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Biobased Approach for Synthesis of Polymers and Sustainable Formulation of Industrial Hardeners. COATINGS 2022. [DOI: 10.3390/coatings12030361] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
The adhesive manufacturing industry needs more eco-sustainable processes. In this regard, the main road is to replace raw fossil materials with renewable resources or waste biomass, and simultaneously improve synthetic steps by using clean and greener reagents under mild conditions. In this paper, a synthetic pathway for producing biobased succinyl peroxide (SP) from waste biomass is reported, and then the application range of this polymerization agent to methacrylates and styrene-free resins is extended. At the same time, new formulations of pastes based on benzoyl or succinyl peroxide, displaying an almost complete biobased carbon content, are investigated and tested as cross-linking agents for mastic marble and unsaturated polyester resins. Physicochemical characterization of the final products and polymers is carried out with thermogravimetric analysis (TGA), differential scanning calorimetry (DSC), Fourier transform infrared (FT-IR), Gel Permeation Chromatography (GPC), Nuclear Magnetic Resonance (NMR) and peak exothermic curve analyses.
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Saha P, Khomlaem C, Aloui H, Kim BS. Biodegradable Polyurethanes Based on Castor Oil and Poly (3-hydroxybutyrate). Polymers (Basel) 2021; 13:1387. [PMID: 33923329 PMCID: PMC8123115 DOI: 10.3390/polym13091387] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2021] [Revised: 04/17/2021] [Accepted: 04/21/2021] [Indexed: 12/15/2022] Open
Abstract
Biodegradable polyurethanes (PUs) were produced from castor oil (CO) and poly (3-hydroxybutyrate) diol (PHBD) using hexamethylene diisocyanate as a crosslinking agent. PHBDs of different molecular weights were synthesized through transesterification of bacterial PHB and ethylene glycol by changing the reaction time. The synthesized PHBDs were characterized in terms of Fourier transform infrared and proton nuclear magnetic resonance spectroscopy. A series of PUs at different NCO/OH and CO/PHBD ratios were prepared. The resulting CO/PHBD-based PUs were then characterized in terms of mechanical and thermal properties. Increasing PHBD content significantly increased the tensile strength of CO/PHBD-based PUs by 300% compared to neat CO-based PU. CO/PHBD-based PUs synthetized from short chain PHBD exhibited higher tensile strength compared to those produced from long chain PHBD. As revealed by scanning electron microscopy analysis, such improvement in stiffness of the resulting PUs is due to the good compatibility between CO and PHBD. Increasing PHBD content also increased the crystallinity of the resulting PUs. In addition, higher degradation rates were obtained for CO/PHBD-based PUs synthetized from long chain PHBD compared to neat CO PU and PUs produced from short chain PHBD.
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Affiliation(s)
| | | | | | - Beom Soo Kim
- Department of Chemical Engineering, Chungbuk National University, Cheongju, Chungbuk 28644, Korea; (P.S.); (C.K.); (H.A.)
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Preparation and properties of a novel waterborne fluorinated polyurethane–acrylate hybrid emulsion modified by long aliphatic chains. Polym Bull (Berl) 2019. [DOI: 10.1007/s00289-019-02858-0] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Ribeiro H, Trigueiro JPC, Lopes MC, Pedrotti JJ, Woellner CF, Silva WM, Silva GG, Ajayan PM. Enhanced thermal conductivity and mechanical properties of hybrid MoS2
/h-BN polyurethane nanocomposites. J Appl Polym Sci 2018. [DOI: 10.1002/app.46560] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Affiliation(s)
- Hélio Ribeiro
- Department of Materials Science and Nanoengineering; Rice University, 6100 Main St; Houston Texas 77005
- Departamento de Química; Universidade Federal de Minas Gerais, Av. Antônio Carlos, 6627-Pampulha, CEP 31270-901; Belo Horizonte MG Brazil
| | - João Paulo C. Trigueiro
- Departamento de Química; Universidade Federal de Minas Gerais, Av. Antônio Carlos, 6627-Pampulha, CEP 31270-901; Belo Horizonte MG Brazil
- Instituto Federal de Minas Gerais - Campus Congonhas, Av. Michael Pereira de Souza, 3007-Campinho, CEP 36415-000; Congonhas MG Brazil
| | - Magnovaldo C. Lopes
- Departamento de Química; Universidade Federal de Minas Gerais, Av. Antônio Carlos, 6627-Pampulha, CEP 31270-901; Belo Horizonte MG Brazil
| | - Jairo J. Pedrotti
- Department of Materials Science and Nanoengineering; Rice University, 6100 Main St; Houston Texas 77005
- Centro de Pesquisas Avançadas em Grafeno, Nanomateriais e Nanotecnologias - Universidade Presbiteriana Mackenzie, Rua da Consolação, 930, CEP 01302-907; São Paulo SP Brazil
| | - Cristiano F. Woellner
- Department of Materials Science and Nanoengineering; Rice University, 6100 Main St; Houston Texas 77005
- Departamento de Física Aplicada; Universidade Estadual de Campinas, Rua Sérgio Buarque de Holanda, 777-CEP 13083-859; Campinas SP Brazil
| | - Wellington M. Silva
- Departamento de Química; Universidade Federal de Minas Gerais, Av. Antônio Carlos, 6627-Pampulha, CEP 31270-901; Belo Horizonte MG Brazil
| | - Glaura G. Silva
- Departamento de Química; Universidade Federal de Minas Gerais, Av. Antônio Carlos, 6627-Pampulha, CEP 31270-901; Belo Horizonte MG Brazil
| | - Pulickel M. Ajayan
- Department of Materials Science and Nanoengineering; Rice University, 6100 Main St; Houston Texas 77005
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