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Cigarruista Solís L, Chen Austin M, Deago E, López G, Marin-Calvo N. Rice Husk-Based Insulators: Manufacturing Process and Thermal Potential Assessment. MATERIALS (BASEL, SWITZERLAND) 2024; 17:2589. [PMID: 38893853 PMCID: PMC11173955 DOI: 10.3390/ma17112589] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/22/2024] [Revised: 05/14/2024] [Accepted: 05/24/2024] [Indexed: 06/21/2024]
Abstract
The development of bio-insultation materials has attracted increasing attention in building energy-saving fields. In tropical and hot-humid climates, building envelope insulation is important for an energy efficient and comfortable indoor environment. In this study, several experiments were carried out on a bio-insulation material, which was prepared by using rice husk as a raw material. Square rice husk-based insultation panels were developed, considering the ASTM C-177 dimensions, to perform thermal conductivity coefficient tests. The thermal conductivity coefficient obtained was 0.073 W/(m K), which is in the range of conventional thermal insulators. In a second phase of this study, two experimental enclosures (chambers) were constructed, one with rice husk-based insulation panels and the second one without this insulation. The measures of the temperatures and thermal flows through the chambers were obtained with an electronic module based on the ARDUINO platform. This module consisted of three DS18B20 temperature sensors and four Peltier plates. Daily temperature and heat flux data were collected for the two chambers during the dry season in Panama, specifically between April and May. In the experimental chamber that did not have rice husk panel insulation on the roof, a flow of up to 28.18 W/m2 was observed, while in the chamber that did have rice husk panels, the presence of a flow toward the interior was rarely observed. The rice husk-based insulation panels showed comparable performance with conventional insulators, as a sustainable solution that takes advantage of a local resource to improve thermal comfort and the reduction of the environmental impact.
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Affiliation(s)
- Luis Cigarruista Solís
- Department of Mechanical Engineering, Universidad Tecnológica de Panamá, Panama City 0819-07289, Panama (M.C.A.); (G.L.)
- Research Group—Iniciativa de Integración de Tecnologías para el Desarrollo de Soluciones Ingenieriles (I2TEDSI), Panama City 0819-07289, Panama
| | - Miguel Chen Austin
- Department of Mechanical Engineering, Universidad Tecnológica de Panamá, Panama City 0819-07289, Panama (M.C.A.); (G.L.)
- Centro de Estudios Multidisciplinarios en Ciencias, Ingeniería y Tecnología (CEMCIT-AIP), Panama City 0819-07289, Panama
- Sistema Nacional de Investigación (SNI), Clayton 0816-02852, Panama;
| | - Euclides Deago
- Centro de Estudios Multidisciplinarios en Ciencias, Ingeniería y Tecnología (CEMCIT-AIP), Panama City 0819-07289, Panama
- Sistema Nacional de Investigación (SNI), Clayton 0816-02852, Panama;
- Centro de Investigaciones Hidráulicas e Hidrotécnicas (CIHH), Universidad Tecnológica de Panamá, Panama City 0819-07289, Panama
- Research Group—Biosólidos Energía y Sostenibilidad (BioES), Panama City 0819-07289, Panama
| | - Guillermo López
- Department of Mechanical Engineering, Universidad Tecnológica de Panamá, Panama City 0819-07289, Panama (M.C.A.); (G.L.)
- Research Group—Iniciativa de Integración de Tecnologías para el Desarrollo de Soluciones Ingenieriles (I2TEDSI), Panama City 0819-07289, Panama
| | - Nacari Marin-Calvo
- Department of Mechanical Engineering, Universidad Tecnológica de Panamá, Panama City 0819-07289, Panama (M.C.A.); (G.L.)
- Research Group—Iniciativa de Integración de Tecnologías para el Desarrollo de Soluciones Ingenieriles (I2TEDSI), Panama City 0819-07289, Panama
- Centro de Estudios Multidisciplinarios en Ciencias, Ingeniería y Tecnología (CEMCIT-AIP), Panama City 0819-07289, Panama
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Han D, Sun X, Zhang S, Wu L, Ai B, Sun H, Chen Y. Cellulose/silica composite microtubular superfoam with excellent flame retardancy, thermal insulation and ablative resistance. RSC Adv 2024; 14:12911-12922. [PMID: 38650688 PMCID: PMC11033830 DOI: 10.1039/d4ra00426d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2024] [Accepted: 04/11/2024] [Indexed: 04/25/2024] Open
Abstract
Thermal insulation materials with good flame-retardant properties have attracted widespread attention because of their huge application potential. Traditional petrochemical-based polymer insulation materials are flammable and have problems with environmental pollution. The microtubule structure is a perfect microstructure with excellent thermal insulation performance. In addition, the microtubule structure also has low density and high elasticity. Therefore, the microtubule structure is an important reference microstructure for the development of efficient thermal insulation materials. In this paper, a cellulose/SiO2 composite microtube thermal insulation superfoam has been successfully prepared. Cellulose microtubules were successfully prepared from poplar sawdust by chemical methods. The SiO2 aerogel precursor solution can be quickly adsorbed by the delignified cellulose microtubes. The SiO2 aerogel shells are evenly distributed only on the inner and outer walls of the delignified cellulose microtubes. The cellulose/SiO2 microtube composite (CSMC) superfoam exhibits low density, good mechanical properties, and low thermal conductivity (as low as 0.042 ± 0.0018 W m-1 K-1). The CSMC superfoam exhibits excellent self-extinguishing and flame-retardant properties. After being burned by a butane flame, the superfoam still has certain mechanical properties. The thermal conductivity of the B-CSMC superfoam (the CSMC superfoam burned by a butane flame) is about 0.050 W m-1 K-1. The B-CSMC superfoam remained almost unchanged after being continuously ablated by a butane flame for 3600 seconds.
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Affiliation(s)
- Ding Han
- China Building Materials Academy Co., Ltd No.1 Guan Zhuang Dong Li, Chaoyang District Beijing 100024 P. R. China +86 010-51167551
| | - Xiankai Sun
- China Building Materials Academy Co., Ltd No.1 Guan Zhuang Dong Li, Chaoyang District Beijing 100024 P. R. China +86 010-51167551
| | - Shichao Zhang
- China Building Materials Academy Co., Ltd No.1 Guan Zhuang Dong Li, Chaoyang District Beijing 100024 P. R. China +86 010-51167551
| | - Linghao Wu
- China Building Materials Academy Co., Ltd No.1 Guan Zhuang Dong Li, Chaoyang District Beijing 100024 P. R. China +86 010-51167551
| | - Bing Ai
- China Building Materials Academy Co., Ltd No.1 Guan Zhuang Dong Li, Chaoyang District Beijing 100024 P. R. China +86 010-51167551
| | - Haoran Sun
- China Building Materials Academy Co., Ltd No.1 Guan Zhuang Dong Li, Chaoyang District Beijing 100024 P. R. China +86 010-51167551
| | - Yufeng Chen
- China Building Materials Academy Co., Ltd No.1 Guan Zhuang Dong Li, Chaoyang District Beijing 100024 P. R. China +86 010-51167551
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Zhang M, Xue J, Zhang R, Zhang W, Peng Y, Wang M, Cao J. Mycelium Composite with Hierarchical Porous Structure for Thermal Management. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2023; 19:e2302827. [PMID: 37403285 DOI: 10.1002/smll.202302827] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/06/2023] [Revised: 06/13/2023] [Indexed: 07/06/2023]
Abstract
High-performance porous materials with a low carbon footprint provide sustainable alternatives to petroleum-based lightweight foams and can help meet carbon neutrality goals. However, these materials generally face a trade-off between thermal management capabilities and structural strength. Here, a mycelium composite with a hierarchical porous structure, including both macro- and microscale pores, produced from multiple and advanced mycelial networks (elastic modulus of 1.2 GPa) binding loosely distributed sawdust is demonstrated. The morphological, biological, and physicochemical properties of the filamentous mycelium and composites are discussed in terms of how they are influenced by the mycelial system of the fungi and the way they interact with the substrate. The composite shows a porosity of 0.94, a noise reduction coefficient of 0.55 at a frequency range of 250-3000 Hz (for a 15 mm thick sample), a thermal conductivity of 0.042 W m-1 K-1 , and an energy absorption of 18 kJ m-3 at 50% strain. It is also hydrophobic, repairable, and recyclable. It is expected that the hierarchical porous structural composite with excellent thermal and mechanical properties can make a significant impact on the future development of highly sustainable alternatives to lightweight plastic foams.
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Affiliation(s)
- Mingchang Zhang
- MOE Key Laboratory of Wooden Material Science and Application, College of Material Science and Technology, Beijing Forestry University, Beijing, 100083, P. R. China
| | - Jing Xue
- MOE Key Laboratory of Wooden Material Science and Application, College of Material Science and Technology, Beijing Forestry University, Beijing, 100083, P. R. China
| | - Runhua Zhang
- MOE Key Laboratory of Wooden Material Science and Application, College of Material Science and Technology, Beijing Forestry University, Beijing, 100083, P. R. China
| | - Wenliang Zhang
- MOE Key Laboratory of Wooden Material Science and Application, College of Material Science and Technology, Beijing Forestry University, Beijing, 100083, P. R. China
| | - Yao Peng
- MOE Key Laboratory of Wooden Material Science and Application, College of Material Science and Technology, Beijing Forestry University, Beijing, 100083, P. R. China
| | - Mingzhi Wang
- MOE Key Laboratory of Wooden Material Science and Application, College of Material Science and Technology, Beijing Forestry University, Beijing, 100083, P. R. China
| | - Jinzhen Cao
- MOE Key Laboratory of Wooden Material Science and Application, College of Material Science and Technology, Beijing Forestry University, Beijing, 100083, P. R. China
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Ellrich JA, Ehlers SM, Furukuma S, Pogoda B, Koop JHE. Characterization of three plastic forms: Plasticoncrete, plastimetal and plastisessiles. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 895:165073. [PMID: 37355116 DOI: 10.1016/j.scitotenv.2023.165073] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/06/2023] [Revised: 05/14/2023] [Accepted: 06/20/2023] [Indexed: 06/26/2023]
Abstract
Plastic forms, including plastiglomerate, pyroplastic, plasticrusts, anthropoquinas, plastistone and plastitar, were recorded worldwide. These plastic forms derive from geochemical or geophysical interactions such as heat-induced plastic fusion with rock in campfires, incomplete plastic combustion, water motion-driven plastic abrasion in the rocky intertidal zone, plastic deposition in hardened sediments and plastic bonding with tar. Thereby, these interactions can profoundly influence the fate of plastics in the environment. This study characterized three novel plastic forms (plasticoncrete, plastimetal and plastisessiles) discovered on Helgoland island (North Sea). Plasticoncrete consisted of common polyethylene (PE) and polypropylene (PP) fibers hardened in concrete. Plastimetal included PE fibers rusted with metal. Plastisessiles consisted of PE fibers attached to benthic substrates by sessile invertebrates (oysters and polychaetes). Plasticoncrete and plastimetal are the first plastic forms composed of two man-made materials. Plastisessiles show that plastic forms not only result from human- or environment-mediated interactions but also from biological interactions between invertebrates and plastic. All plastic forms (bulk density ≥ 1.4 g/cm3) sunk during floating tests and hardly changed their positions during a 13-day field experiment and 153- to 306-day field monitorings, indicating their local formation, limited mobility and longevity. Still, experimentally detached plastic fibers floated, confirming that the formation of these plastic forms influences the fate of plastic fibers in the environment. Furthermore, the experiment showed that plasticoncrete got deposited in beach sand under wavy and windy conditions, indicating that coastal waves and onshore winds drive plasticoncrete deposition in coastal sediments. We also provide first records of plasticoncrete on Mallorca island (Mediterranean Sea) and plastimetal on Hikoshima island (Sea of Japan), respectively, which show that these plastic forms are no local phenomena. Thereby, our study contributes to the growing fundamental knowledge of plastic forms that is essential to understand the role and fate of these pollutants in coastal habitats worldwide.
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Affiliation(s)
- Julius A Ellrich
- Shelf Sea System Ecology, Alfred Wegener Institute Helmholtz Centre for Polar and Marine Research, 27498 Helgoland, Germany
| | - Sonja M Ehlers
- Department of Animal Ecology, Federal Institute of Hydrology, 56068 Koblenz, Germany.
| | - Shunji Furukuma
- Independent Researcher, 409-24 Kiwanami, Ube City, Yamaguchi 7590207, Japan
| | - Bernadette Pogoda
- Shelf Sea System Ecology, Alfred Wegener Institute Helmholtz Centre for Polar and Marine Research, 27498 Helgoland, Germany
| | - Jochen H E Koop
- Department of Animal Ecology, Federal Institute of Hydrology, 56068 Koblenz, Germany; Institute for Integrated Natural Sciences, University of Koblenz, 56070 Koblenz, Germany
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Martinho SD, Fernandes VC, Figueiredo SA, Vilarinho R, Moreira JA, Delerue-Matos C. Laboratory Studies about Microplastic Aging and Its Effects on the Adsorption of Chlorpyrifos. Polymers (Basel) 2023; 15:3468. [PMID: 37631527 PMCID: PMC10459960 DOI: 10.3390/polym15163468] [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: 07/19/2023] [Revised: 08/06/2023] [Accepted: 08/10/2023] [Indexed: 08/27/2023] Open
Abstract
The constant change in microplastics (MP) due to exposure to environmental conditions leads to physical and chemical changes that enhance their ability to transport other pollutants, increasing the concern about their widespread presence in the environment. This work aimed to simulate the aging process of six MP (polyamide 6, unplasticized polyvinyl chloride, low-density polyethylene, polystyrene, polyethylene-co-vinyl acetate, polypropylene) in freshwater and seawater ecosystems at laboratory scale and evaluate its effects through optical microscope observation, Fourier transform infrared spectroscopy-Attenuated Total Reflectance (FTIR-ATR), Raman spectroscopy, and thermal gravimetric analysis (TGA). Through a combined experimental study of aged MP, the degradation by UV interaction was evidenced by the appearance of new infrared bands in the FTIR spectra assigned to ketones and hydroxyl groups. While Raman analysis and microscope images reveal the appearance of pores, wrinkles, and roughness in the MP surfaces. Variations in the temperature of the maximum weight loss of the MP were observed in the TGA analysis. The adsorption of chlorpyrifos (CPF), a common pesticide widely used in agriculture, by the pristine and aged MP was also studied. The highest affinity for CPF was observed for pristine LDPE and the lowest for PP. The batch adsorption studies revealed an increase in adsorption capacity as a consequence of the aging process for both MP. These results proved that the weathering effects caused changes in the behavior of MP, namely in the interaction with other pollutants.
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Affiliation(s)
- Sílvia D. Martinho
- REQUIMTE/LAQV—ISEP, Polytechnic of Porto, Rua Dr. António Bernandino de Almeida 431, 4249-015 Porto, Portugal; (S.D.M.); (C.D.-M.)
- Department of Chemistry and Biochemistry, Faculty of Sciences of the Porto University, Rua do Campo Alegre s/n, 4169-007 Porto, Portugal
| | - Vírgínia Cruz Fernandes
- REQUIMTE/LAQV—ISEP, Polytechnic of Porto, Rua Dr. António Bernandino de Almeida 431, 4249-015 Porto, Portugal; (S.D.M.); (C.D.-M.)
| | - Sónia A. Figueiredo
- REQUIMTE/LAQV—ISEP, Polytechnic of Porto, Rua Dr. António Bernandino de Almeida 431, 4249-015 Porto, Portugal; (S.D.M.); (C.D.-M.)
| | - Rui Vilarinho
- Department of Physics and Astronomy, Faculty of Sciences of the Porto University, Rua do Campo Alegre s/n, 4169-007 Porto, Portugal; (R.V.); (J.A.M.)
- IFIMUP—Institute of Physics for Advanced Materials, Nanotechnology and Photonics, Faculty of Sciences of the Porto University, Rua do Campo Alegre 687, 4169-007 Porto, Portugal
| | - J. Agostinho Moreira
- Department of Physics and Astronomy, Faculty of Sciences of the Porto University, Rua do Campo Alegre s/n, 4169-007 Porto, Portugal; (R.V.); (J.A.M.)
- IFIMUP—Institute of Physics for Advanced Materials, Nanotechnology and Photonics, Faculty of Sciences of the Porto University, Rua do Campo Alegre 687, 4169-007 Porto, Portugal
| | - Cristina Delerue-Matos
- REQUIMTE/LAQV—ISEP, Polytechnic of Porto, Rua Dr. António Bernandino de Almeida 431, 4249-015 Porto, Portugal; (S.D.M.); (C.D.-M.)
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Jiamphun S, Chaiyana W. Enhancing Skin Delivery and Stability of Vanillic and Ferulic Acids in Aqueous Enzymatically Extracted Glutinous Rice Husk by Nanostructured Lipid Carriers. Pharmaceutics 2023; 15:1961. [PMID: 37514147 PMCID: PMC10384697 DOI: 10.3390/pharmaceutics15071961] [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: 06/14/2023] [Revised: 07/11/2023] [Accepted: 07/15/2023] [Indexed: 07/30/2023] Open
Abstract
The present study aimed to develop nanostructured lipid carriers (NLCs) and evaluate their effectiveness in enhancing the delivery and stability of vanillic and ferulic acid in the aqueous enzymatic extract of glutinous rice husk using a 0.5% w/w cellulase solution (CE0.5). NLCs were developed using a high-pressure homogenization technique and characterized for their particle size, polydispersity index, and zeta potential. The entrapment efficiency, physical and chemical stability, release profile, skin permeation, and skin retention of the NLCs loaded with CE0.5 were evaluated. It was observed that NLCs with high entrapment efficiencies efficiently encapsulate and protect both vanillic and ferulic acid, in contrast to a solution. The controlled and sustained release profile of vanillic acid and ferulic acid from NLCs suggests their potential for prolonged and targeted delivery. The findings also demonstrate the superior skin retention capabilities of NLCs without permeation compared to the solution. Notably, NLC2 exhibited the highest delivery into the skin layer, which can be attributed to its smaller particle size (107.3 ± 1.3 nm), enabling enhanced skin penetration. This research highlights the promising application of NLCs in enhancing the delivery and stability of bioactive compounds in cosmetic formulations and related fields.
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Affiliation(s)
- Sudarat Jiamphun
- Department of Pharmaceutical Science, Faculty of Pharmacy, Chiang Mai University, Chiang Mai 50200, Thailand
| | - Wantida Chaiyana
- Department of Pharmaceutical Science, Faculty of Pharmacy, Chiang Mai University, Chiang Mai 50200, Thailand
- Research Center of Pharmaceutical Nanotechnology, Faculty of Pharmacy, Chiang Mai University, Chiang Mai 50200, Thailand
- Innovation Center for Holistic Health, Nutraceuticals, and Cosmeceuticals, Faculty of Pharmacy, Chiang Mai University, Chiang Mai 50200, Thailand
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Stachowiak N, Kowalonek J, Kozlowska J, Burkowska-But A. Stability Studies, Biodegradation Tests, and Mechanical Properties of Sodium Alginate and Gellan Gum Beads Containing Surfactant. Polymers (Basel) 2023; 15:polym15112568. [PMID: 37299365 DOI: 10.3390/polym15112568] [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: 05/03/2023] [Revised: 05/28/2023] [Accepted: 05/29/2023] [Indexed: 06/12/2023] Open
Abstract
The excessive presence of single-use plastics is rapidly degrading our natural environment on a global scale due to their inherent resistance to decomposition. Wet wipes used for personal or household purposes contribute significantly to the accumulation of plastic waste. One potential solution to address this problem involves developing eco-friendly materials that possess the ability to degrade naturally while retaining their washing capabilities. For this purpose, the beads from sodium alginate, gellan gum, and a mixture of these natural polymers containing surfactant were produced using the ionotropic gelation method. Stability studies of the beads by observing their appearance and diameter were performed after incubation in solutions of different pH values. The images showed that macroparticles were reduced in size in an acidic medium and swelled in solution of pH-neutral phosphate-buffered saline. Moreover, all the beads first swelled and then degraded in alkaline conditions. The beads based on gellan gum and combining both polymers were the least sensitive to pH changes. The compression tests revealed that the stiffness of all macroparticles decreased with the increasing pH of the solutions in which they were immersed. The studied beads were more rigid in an acidic solution than in alkaline conditions. The biodegradation of macroparticles was assessed using a respirometric method in soil and seawater. It is important to note that the macroparticles degraded more rapidly in soil than in seawater.
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Affiliation(s)
- Natalia Stachowiak
- Faculty of Chemistry, Nicolaus Copernicus University in Torun, Gagarina St. 7, 87-100 Torun, Poland
| | - Jolanta Kowalonek
- Faculty of Chemistry, Nicolaus Copernicus University in Torun, Gagarina St. 7, 87-100 Torun, Poland
| | - Justyna Kozlowska
- Faculty of Chemistry, Nicolaus Copernicus University in Torun, Gagarina St. 7, 87-100 Torun, Poland
| | - Aleksandra Burkowska-But
- Faculty of Biological and Veterinary Sciences, Nicolaus Copernicus University in Torun, Lwowska St. 1, 87-100 Torun, Poland
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De-la-Torre GE, Pizarro-Ortega CI, Dioses-Salinas DC, Ribeiro VV, Urizar Garfias Reyes DF, Ben-Haddad M, Rakib MRJ, Dobaradaran S. Micro- and mesoplastic pollution along the coast of Peru. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023:10.1007/s11356-023-27707-6. [PMID: 37199842 DOI: 10.1007/s11356-023-27707-6] [Citation(s) in RCA: 10] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 02/11/2023] [Accepted: 05/13/2023] [Indexed: 05/19/2023]
Abstract
Peru suffers from poor solid waste and coastal management, as well as evidenced plastic pollution in various forms. However, studies in Peru focusing on small plastic debris (i.e., meso- and microplastics) are still limited and inconclusive. Thus, the present study investigated the abundance, characteristics, seasonality, and distribution of small plastic debris along the coast of Peru. The abundance of small plastic debris is predominantly driven by specific locations, where a source of contamination is present, rather than presenting seasonal patterns. Meso- and microplastics were strongly correlated in both seasons (summer and winter), suggesting meso-plastic constantly breaking down as microplastic sources. Additionally, heavy metals (e.g., Cu, Pb) were found in low concentrations (mean concentrations < 0.4%) on the surface of some mesoplastics. Here, we provided a baseline on the multiple factors involving small plastic debris on the Peruvian coast and preliminarily identify associated contaminants.
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Affiliation(s)
- Gabriel Enrique De-la-Torre
- Grupo de Investigación de Biodiversidad, Medio Ambiente Y Sociedad, Universidad San Ignacio de Loyola, Lima, Peru.
| | | | | | | | - Damarisch Fernanda Urizar Garfias Reyes
- Círculo de Investigación en Contaminación Por Plásticos, Universidad Nacional Agraria La Molina, Lima, Peru
- Grupo de Investigación Salud Pública, Universidad Nacional Mayor de San Marcos, Lima, Peru
| | - Mohamed Ben-Haddad
- Laboratory of Aquatic Systems, Marine and Continental Environments, Faculty of Sciences, Ibn Zohr University, Agadir, Morocco
| | - Md Refat Jahan Rakib
- Department of Fisheries and Marine Science, Faculty of Science, Noakhali Science and Technology University, Noakhali, Bangladesh
| | - Sina Dobaradaran
- Systems Environmental Health and Energy Research Center, The Persian Gulf Biomedical Sciences Research Institute, Bushehr University of Medical Sciences, Bushehr, Iran
- Department of Environmental Health Engineering, Faculty of Health and Nutrition, Bushehr University of Medical Sciences, Bushehr, Iran
- Instrumental Analytical Chemistry and Centre for Water and Environmental Research (ZWU), Faculty of Chemistry, University of Duisburg-Essen, Universitätsstr. 5, Essen, Germany
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Cellulose/Grape-Seed-Extract Composite Films with High Transparency and Ultraviolet Shielding Performance Fabricated from Old Cotton Textiles. Polymers (Basel) 2023; 15:polym15061451. [PMID: 36987229 PMCID: PMC10053784 DOI: 10.3390/polym15061451] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2023] [Revised: 02/27/2023] [Accepted: 03/10/2023] [Indexed: 03/17/2023] Open
Abstract
Plastics displaying many merits have been indispensable in daily life and they still maintain the strong momentum of development. Nevertheless, petroleum-based plastics possess a stable polymer structure and most of them are incinerated or accumulated in the environment, leading to devastating impacts on our ecology system. Thus, exploiting renewable and biodegradable materials to substitute or replace these traditional petroleum-derived plastics is an urgent and important task. In this work, renewable and biodegradable all-biomass cellulose/grape-seed-extract (GSEs) composite films with high transparency and anti-ultraviolet performance were fabricated successfully from pretreated old cotton textiles (P-OCTs) using a relatively simple, green, yet cost-effective, approach. It is proved that the obtained cellulose/GSEs composite films exhibit good ultraviolet shielding performance without sacrificing their transparency, and their UV-A and UV-B blocking values can reach as high as nearly 100%, indicating the good UV-blocking performance of GSEs. Meanwhile, the cellulose/GSEs film show higher thermal stability and water vapor transmission rate (WVTR) than most common plastics. Moreover, the mechanical property of the cellulose/GSEs film can be adjusted by the addition of a plasticizer. Briefly, the transparent all-biomass cellulose/grape-seed-extracts composite films with high anti-ultraviolet capacity were manufactured successfully and they can be used as potential materials in the packaging field.
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