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Kolya H, Kang CW. Eco-Friendly Polymer Nanocomposite Coatings for Next-Generation Fire Retardants for Building Materials. Polymers (Basel) 2024; 16:2045. [PMID: 39065362 PMCID: PMC11280874 DOI: 10.3390/polym16142045] [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: 06/24/2024] [Revised: 07/12/2024] [Accepted: 07/16/2024] [Indexed: 07/28/2024] Open
Abstract
The increasing global commitment to carbon neutrality has propelled a heightened focus on sustainable construction materials, with wood emerging as pivotal due to its environmental benefits. This review explores the development and application of eco-friendly polymer nanocomposite coatings to enhance wood's fire resistance, addressing a critical limitation in its widespread adoption. These nanocomposites demonstrate improved thermal stability and char formation properties by integrating nanoparticles, such as nano-clays, graphene oxide, and metal oxides, into biopolymer matrices. This significantly mitigates the flammability of wood substrates, creating a robust barrier against heat and oxygen. The review provides a comprehensive examination of these advanced coatings' synthesis, characterization, and performance. By emphasizing recent innovations and outlining future research directions, this review underscores the potential of eco-friendly polymer nanocomposite coatings as next-generation fire retardants. This advancement supports the expanded utilization of wood in sustainable construction practices and aligns with global initiatives toward achieving carbon neutrality.
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Affiliation(s)
| | - Chun-Won Kang
- Department of Housing Environmental Design, Research Institute of Human Ecology, College of Human Ecology, Jeonbuk National University, Jeonju 54896, Jeonbuk, Republic of Korea;
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Furlan Sandrini DM, Morgado DL, de Oliveira AJA, de Moraes DA, Varanda LC, Frollini E. Cellulose esters: Synthesis for further formation of films with magnetite nanoparticles incorporated. Int J Biol Macromol 2024; 264:130594. [PMID: 38437931 DOI: 10.1016/j.ijbiomac.2024.130594] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2023] [Revised: 02/07/2024] [Accepted: 03/01/2024] [Indexed: 03/06/2024]
Abstract
This study investigated the homogeneous synthesis of cellulose acetate (CA) and propionate (CP) with varying degrees of substitution (DS) from sisal cellulose in a N, N-dimethylacetamide/lithium chloride (DMAc/LiCl) solvent system. These esters were used to prepare neat (CADSF/CPDSF) and nanocomposite films (CADSFFe/CPDSFFe) from prior synthesized magnetite nanoparticles (NPs, Fe3O4, 5.1 ± 0.5 nm). Among the CA and CP series, the composite CA0.7FFe and the neat CP0.7F films exhibited the highest modulus of elasticity, 2105 MPa and 2768 MPa, respectively, probably a consequence of the continuous fibrous structures present on the surface of these films. Microsphere formation on the film's surface was observed in scanning electron microscopy micrographs. This points to applications in the controlled release of targeted substances. The VSM analysis showed that the cellulosic matrices preserved the superparamagnetic characteristics of the NPs. This study suggested a reduced coupling effect between nanoparticles inside polymeric films due to magnetic saturation at low fields. CA0.7FFe and CA1.3FFe composite films reached a saturation magnetization (MSAT) of 46 emu/g around 7 kOe field. Hosting magnetite nanoparticles in cellulose ester matrices may be an interesting way to develop new functional cellulose-based materials, which have the potential for diverse applications, including microelectromechanical systems and microsensors.
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Affiliation(s)
- Daiana M Furlan Sandrini
- Macromolecular Materials and Lignocellulosic Fibers Group, Center for Research on Science and Technology of BioResources, São Carlos Institute of Chemistry, University of São Paulo, São Carlos, São Paulo, Brazil
| | - Daniella Lury Morgado
- Macromolecular Materials and Lignocellulosic Fibers Group, Center for Research on Science and Technology of BioResources, São Carlos Institute of Chemistry, University of São Paulo, São Carlos, São Paulo, Brazil
| | | | - Daniel A de Moraes
- Colloidal Materials Group, Center for Research on Science and Technology of BioResources, São Carlos Institute of Chemistry, University of São Paulo, São Carlos, São Paulo, Brazil
| | - Laudemir C Varanda
- Colloidal Materials Group, Center for Research on Science and Technology of BioResources, São Carlos Institute of Chemistry, University of São Paulo, São Carlos, São Paulo, Brazil
| | - Elisabete Frollini
- Macromolecular Materials and Lignocellulosic Fibers Group, Center for Research on Science and Technology of BioResources, São Carlos Institute of Chemistry, University of São Paulo, São Carlos, São Paulo, Brazil.
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Azman Mohammad Taib MN, Hamidon TS, Garba ZN, Trache D, Uyama H, Hussin MH. Recent progress in cellulose-based composites towards flame retardancy applications. POLYMER 2022. [DOI: 10.1016/j.polymer.2022.124677] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
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Kaschuk J, Borghei M, Solin K, Tripathi A, Khakalo A, Leite FA, Branco A, Amores de Sousa MC, Frollini E, Rojas OJ. Cross-Linked and Surface-Modified Cellulose Acetate as a Cover Layer for Paper-Based Electrochromic Devices. ACS APPLIED POLYMER MATERIALS 2021; 3:2393-2401. [PMID: 34308357 PMCID: PMC8290922 DOI: 10.1021/acsapm.0c01252] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/21/2020] [Accepted: 12/30/2020] [Indexed: 05/26/2023]
Abstract
We studied the surface and microstructure of cellulose acetate (CA) films to tailor their barrier and mechanical properties for application in electrochromic devices (ECDs). Cross-linking of CA was carried out with pyromellitic dianhydride to enhance the properties relative to unmodified CA: solvent resistance (by 43% in acetone and 37% in DMSO), strength (by 91% for tensile at break), and barrier (by 65% to oxygen and 92% to water vapor). Surface modification via tetraethyl orthosilicate and octyltrichlorosilane endowed the films with hydrophobicity, stiffness, and further enhanced solvent resistance. A detailed comparison of structural, chemical, surface, and thermal properties was performed by using X-ray diffraction, dynamic mechanical analyses, Fourier-transform infrared spectroscopy, and atomic force microscopy. Coplanar ECDs were synthesized by incorporating a hydrogel electrolyte comprising TEMPO-oxidized cellulose nanofibrils and an ionic liquid. When applied as the top layer in the ECDs, cross-linked and hydrophobized CA films extended the functionality of the assembled displays. The results indicate excellent prospects for CA films in achieving environmental-friendly ECDs that can replace poly(ethylene terephthalate)-based counterparts.
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Affiliation(s)
- Joice
Jaqueline Kaschuk
- Macromolecular
Materials and Lignocellulosic Fibers Group, Center for Research on
Science and Technology of BioResources, Institute of Chemistry of
São Carlos, University of São
Paulo, CP 780, 13560-970 São Carlos, São Paulo, Brazil
- Department
of Bioproducts and Biosystems, School of Chemical Engineering, Aalto University, Vuorimiehentie 1, FI-00076 Espoo, Finland
| | - Maryam Borghei
- Department
of Bioproducts and Biosystems, School of Chemical Engineering, Aalto University, Vuorimiehentie 1, FI-00076 Espoo, Finland
| | - Katariina Solin
- Department
of Bioproducts and Biosystems, School of Chemical Engineering, Aalto University, Vuorimiehentie 1, FI-00076 Espoo, Finland
| | - Anurodh Tripathi
- Department
of Bioproducts and Biosystems, School of Chemical Engineering, Aalto University, Vuorimiehentie 1, FI-00076 Espoo, Finland
- Department
of Chemical and Biomolecular Engineering, North Carolina State University, 27695 Raleigh, North Carolina, United States
| | - Alexey Khakalo
- VTT
Technical Research Centre of Finland Ltd, P.O. Box 1000, FI-02044, VTT Espoo, Finland
| | | | - Aida Branco
- Ynvisible
SA, Rua Quinta do Bom
Retiro 12C, 2820-690 Charneca da Caparica, Portugal
| | | | - Elisabete Frollini
- Macromolecular
Materials and Lignocellulosic Fibers Group, Center for Research on
Science and Technology of BioResources, Institute of Chemistry of
São Carlos, University of São
Paulo, CP 780, 13560-970 São Carlos, São Paulo, Brazil
| | - Orlando J. Rojas
- Department
of Bioproducts and Biosystems, School of Chemical Engineering, Aalto University, Vuorimiehentie 1, FI-00076 Espoo, Finland
- Bioproducts
Institute, Department of Chemical and Biological Engineering, Department
of Chemistry and Department of Wood Science, The University of British Columbia, 2360 East Mall, BC
V6T 1Z3 Vancouver, Canada
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