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Miao Y, Zhao Y, Waterhouse GIN, Shi R, Wu LZ, Zhang T. Photothermal recycling of waste polyolefin plastics into liquid fuels with high selectivity under solvent-free conditions. Nat Commun 2023; 14:4242. [PMID: 37454122 DOI: 10.1038/s41467-023-40005-6] [Citation(s) in RCA: 11] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2022] [Accepted: 07/06/2023] [Indexed: 07/18/2023] Open
Abstract
The widespread use of polyolefin plastics in modern societies generates huge amounts of plastic waste. With a view toward sustainability, researchers are now seeking novel and low-cost strategies for recycling and valorizing polyolefin plastics. Herein, we report the successful development of a photothermal catalytic recycling system for transforming polyolefin plastics into liquid/waxy fuels under concentrated sunlight or xenon lamp irradiation. Photothermal heating of a Ru/TiO2 catalyst to 200-300 °C in the presence of polyolefin plastics results in intimate catalyst-plastic contact and controllable hydrogenolysis of C-C and C-H bonds in the polymer chains (mediated by Ru sites). By optimizing the reaction temperature and pressure, the complete conversion of waste polyolefins into valuable liquid fuels (86% gasoline- and diesel-range hydrocarbons, C5-C21) is possible in short periods (3 h). This work demonstrates a simple and efficient strategy for recycling waste polyolefin plastics using abundant solar energy.
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Affiliation(s)
- Yingxuan Miao
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, 100190, Beijing, China
- Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, 100049, Beijing, China
| | - Yunxuan Zhao
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, 100190, Beijing, China.
| | | | - Run Shi
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, 100190, Beijing, China
| | - Li-Zhu Wu
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, 100190, Beijing, China
| | - Tierui Zhang
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, 100190, Beijing, China.
- Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, 100049, Beijing, China.
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Wolfsgruber N, Tanda A, Archodoulaki V, Burgstaller C. Influence of filler type and content on thermal conductivity and mechanical properties of thermoplastic compounds. POLYM ENG SCI 2023. [DOI: 10.1002/pen.26266] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/09/2023]
Affiliation(s)
- Nina Wolfsgruber
- Transfercenter für Kunststofftechnik GmbH, Franz‐Fritsch Straße 11 Wels Austria
- TU Vienna Institute for Materials Science Wien Austria
| | | | | | - Christoph Burgstaller
- Transfercenter für Kunststofftechnik GmbH, Franz‐Fritsch Straße 11 Wels Austria
- University of Applied Science Upper Austria R&D‐GmbH, Research Center Wels Wels Austria
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Zhang Y, Zhang H, Guo M, De Coninck J, Seveno D. Reactive Spreading Dynamics of Molten Polymer Liquids. Macromolecules 2023. [DOI: 10.1021/acs.macromol.2c02530] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Affiliation(s)
- Yichuan Zhang
- School of Chemistry and Chemical Engineering, Chongqing Key Laboratory of Soft-Matter Material Chemistry and Function Manufacturing, Southwest University, Chongqing400715, China
- Department of Materials Engineering, KU Leuven, 3001Leuven, Belgium
- Transfers, Interfaces and Processes, Université libre de Bruxelles, 1050Bruxelles, Belgium
| | - Hanqi Zhang
- Department of Materials Engineering, KU Leuven, 3001Leuven, Belgium
| | - Mingming Guo
- School of Chemistry and Chemical Engineering, Chongqing Key Laboratory of Soft-Matter Material Chemistry and Function Manufacturing, Southwest University, Chongqing400715, China
| | - Joël De Coninck
- Transfers, Interfaces and Processes, Université libre de Bruxelles, 1050Bruxelles, Belgium
| | - David Seveno
- Department of Materials Engineering, KU Leuven, 3001Leuven, Belgium
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Weiser P, Kietz R, Schneider M, Worgull M, Hölscher H. Roll-to-roll fabrication of superhydrophobic pads covered with nanofur for the efficient clean-up of oil spills. BEILSTEIN JOURNAL OF NANOTECHNOLOGY 2022; 13:1228-1239. [PMID: 36415854 PMCID: PMC9644067 DOI: 10.3762/bjnano.13.102] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 05/16/2022] [Accepted: 09/29/2022] [Indexed: 06/16/2023]
Abstract
Superhydrophobic surfaces, which self-clean through rinsing with water, have gained significant importance during the last decades. A method to fabricate such a surface featuring the lotus effect, solely through structuring, is hot pulling of a polymer surface. This technique provides the so-called nanofur, which consists of a polymer surface densely covered with a polymeric fur of extremely thin hair-like structures. Here, we present a continuous roll-to-roll process for the fabrication of a thin polymeric film covered with nanofur from polypropylene. Our process enables structuring of large areas of the order of square meters using industry standard machinery. This opens up many possible applications for nanofur that could previously not be realized because of the limitations of conventional hot embossing regarding structurable area. The structured film is subsequently processed into an exemplary product, that is, so-called nanopads; polymeric sandwiches of polypropylene film covered with nanofur and filled with an oil-absorbing material. These are well-suited for the cleanup of small oil spills.
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Affiliation(s)
- Patrick Weiser
- Institute of Microstructure Technology (IMT), Karlsruhe Institute of Technology (KIT), P.O. box 36 40, 76021 Karlsruhe, Germany
| | - Robin Kietz
- Institute of Microstructure Technology (IMT), Karlsruhe Institute of Technology (KIT), P.O. box 36 40, 76021 Karlsruhe, Germany
| | - Marc Schneider
- Institute of Microstructure Technology (IMT), Karlsruhe Institute of Technology (KIT), P.O. box 36 40, 76021 Karlsruhe, Germany
- Karlsruhe Nano Micro Facility for information-driven Material Structuring and Characterization (KNMFi), Karlsruhe Institute of Technology (KIT), Hermann-von-Helmholtz-Platz 1, 76344 Eggenstein-Leopoldshafen, Germany
| | - Matthias Worgull
- Institute of Microstructure Technology (IMT), Karlsruhe Institute of Technology (KIT), P.O. box 36 40, 76021 Karlsruhe, Germany
- Karlsruhe Nano Micro Facility for information-driven Material Structuring and Characterization (KNMFi), Karlsruhe Institute of Technology (KIT), Hermann-von-Helmholtz-Platz 1, 76344 Eggenstein-Leopoldshafen, Germany
| | - Hendrik Hölscher
- Institute of Microstructure Technology (IMT), Karlsruhe Institute of Technology (KIT), P.O. box 36 40, 76021 Karlsruhe, Germany
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Doineau E, Coqueugniot G, Pucci MF, Caro AS, Cathala B, Bénézet JC, Bras J, Le Moigne N. Hierarchical thermoplastic biocomposites reinforced with flax fibres modified by xyloglucan and cellulose nanocrystals. Carbohydr Polym 2020; 254:117403. [PMID: 33357891 DOI: 10.1016/j.carbpol.2020.117403] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2020] [Revised: 11/09/2020] [Accepted: 11/10/2020] [Indexed: 01/31/2023]
Abstract
This work is focused on the modification of the interphase zone in short flax fibres / polypropylene (PP) composites by a bio-inspired modification of fibres called "nanostructuration" that uses the adsorption of biomass by-products, i.e. cellulose nanocrystals (CNC) and xyloglucan (XG), to create hierarchical flax fibres. The wettability and interfacial adhesion study reveals a strong decrease in the polar character of CNC modified flax fibres, hence increasing the work of adhesion with PP. Moreover, combining XG/CNC modified interphases with MAPP coupling agent enhances the ultimate mechanical properties of biocomposites with higher tensile strength and work of rupture, and modifies failure mechanisms as revealed by in situ micro-mechanical tensile SEM experiments. Bio-based hierarchical composites inspired by naturally occurring nanostructures open a new path for the development of sustainable composites with enhanced structural properties.
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Affiliation(s)
- Estelle Doineau
- Polymers Composites and Hybrids (PCH), IMT Mines Ales, Ales, France(1); Univ. Grenoble Alpes, CNRS, Grenoble INP (Institute of Engineering Univ. Grenoble Alpes), LGP2, F-38000, Grenoble, France(1); INRAE, UR BIA, F-44316, Nantes, France(1).
| | - Guillaume Coqueugniot
- Univ. Grenoble Alpes, CNRS, Grenoble INP (Institute of Engineering Univ. Grenoble Alpes), LGP2, F-38000, Grenoble, France(1)
| | | | | | | | | | - Julien Bras
- Univ. Grenoble Alpes, CNRS, Grenoble INP (Institute of Engineering Univ. Grenoble Alpes), LGP2, F-38000, Grenoble, France(1); Nestle Research Center, CH - 1000, Lausanne, Switzerland
| | - Nicolas Le Moigne
- Polymers Composites and Hybrids (PCH), IMT Mines Ales, Ales, France(1).
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Mahendra IP, Wirjosentono B, Tamrin, Ismail H, Mendez JA, Causin V. The influence of maleic anhydride-grafted polymers as compatibilizer on the properties of polypropylene and cyclic natural rubber blends. JOURNAL OF POLYMER RESEARCH 2019. [DOI: 10.1007/s10965-019-1878-2] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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