Article
Engineering, Environmental
Georgy Lazorenko, Anton Kasprzhitskii, Vasilii Mischinenko
Summary: This article investigates the effects of various pre-treatment methods on crumb rubber, and finds that treatment with potassium permanganate solution can significantly improve the adhesion of rubber to the geopolymer matrix, thereby improving the mechanical properties of the composite materials.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2021)
Article
Green & Sustainable Science & Technology
Paulina Wisniewska, Natalia A. Wojcik, Jacek Ryl, Robert Bogdanowicz, Henri Vahabi, Krzysztof Formela, Mohammad Reza Saeb
Summary: Recycling and management of rubber wastes have reached an early-stage maturity in the pursuit of sustainable and circular materials. However, the solutions for sustainable development of rubber wastes are limited, resulting in inadequate properties and performance features of recycled products. In this study, a experimental protocol is introduced for manufacturing semi-sustainable polymer composites using ground tire rubber (GTR) and ethylene-vinyl acetate copolymer (EVA). The resulting composites are analyzed for their processing, properties, and performance features. The study shows promising properties and performance for highly-loaded 50/50 GTR/EVA systems, with good flexibility for additive manufacturing. The tensile strength is independent of carbon black (CB) type and blend composition, while the elongation at break changes depending on the CB type and content. The thermal stability, flame retardancy, and electrical conductivity of the composites are also examined.
JOURNAL OF CLEANER PRODUCTION
(2023)
Article
Environmental Sciences
Kumarjyoti Roy, Debdas Sikdar, Aphiwat Pongwisuthiruchte, Subhas Chandra Debnath, Pranut Potiyaraj
Summary: Using waste aluminum cans based nano alumina (WACNA) as reinforcing filler, a simple strategy was proposed to develop natural rubber (NR) composites with balanced compact performances. The addition of WACNA significantly improved the mechanical properties and thermal stability of NR composites.
JOURNAL OF MATERIAL CYCLES AND WASTE MANAGEMENT
(2022)
Article
Polymer Science
Daniela Fico, Daniela Rizzo, Valentina De Carolis, Francesco Montagna, Carola Esposito Corcione
Summary: The excessive use of difficult-to-dispose synthetic materials has raised ecological concerns and led to a shift towards sustainable materials and a circular economy. This study produced bio-filaments for 3D printing from recycled PLA and ceramic waste, demonstrating their potential for low-cost production of 3D-printed models.
Article
Polymer Science
Mohammed N. Alghamdi
Summary: Fly ash polymer composites with small particles can enhance mechanical properties, while large particles may cause filler/matrix delamination during recycling. The study provides insights on effective utilization of fly ash for sustainable and economical solutions.
Article
Engineering, Environmental
Nicolas M. Charpentier, Ange A. Maurice, Dong Xia, Wen-Jie Li, Chang-Sian Chua, Andrea Brambilla, Jean-Christophe P. Gabriel
Summary: The increasing number of electronic devices has resulted in a significant rise in e-waste. Efficient recycling methods are crucial to minimize the environmental impact and recover valuable metals. A new system using neural network-based optical recognition and multi-energy X-ray transmission spectroscopy has been developed to accurately sort electronic components and extract critical metals from printed circuit boards. This technology shows promising applications for mitigating e-waste's environmental impact and promoting sustainable metal recovery.
RESOURCES CONSERVATION AND RECYCLING
(2023)
Review
Engineering, Multidisciplinary
Mapoloko Mpho Phiri, Mohau Justice Phiri, Krzysztof Formela, Shanganyane Percy Hlangothi
Summary: This review article summarizes the chemical modification methods of surface etching for ground tire rubber (GTR) to improve its compatibility with various matrices. Different surface etching treatment methods, characterization techniques, and the advantages and limitations of these processes for GTR are discussed in detail.
COMPOSITES PART B-ENGINEERING
(2021)
Article
Polymer Science
Marko Bek, Alexandra Aulova, Klementina Pusnik Cresnar, Sebastjan Matkovic, Mitjan Kalin, Lidija Slemenik Perse
Summary: The use of neat and recycled polypropylene matrix materials in wood-polymer composites showed different creep properties. The composites with neat polypropylene matrix exhibited superior creep resistance due to higher crystallinity and better interfacial adhesion caused by the formation of a transcrystalline layer. Compared to composites with recycled polypropylene matrix which does not form a transcrystalline layer, composites with neat polypropylene matrix had a 25% reduction in creep compliance. However, from 20 wt.% on, the creep compliance of composites with recycled polypropylene matrix was comparable or even surpassed that of unfilled neat polypropylene matrix, making it a promising way to promote sustainability.
Article
Polymer Science
S. A. Dananjaya, Y. R. Somarathna, L. Karunanayake, S. Siriwardena
Summary: This study investigates the preparation and physico-mechanical properties of Natural Rubber Latex Foam composites (NRLF) by incorporating Processed Mica Waste (PMW). The results show that PMW enhances the foam rubber, improving its tensile properties and tear strength. However, the addition of PMW also leads to changes in other properties of the composites.
JOURNAL OF POLYMER RESEARCH
(2022)
Article
Polymer Science
Vladimir Mancel, Iveta Cabalova, Jozef Krilek, Roman Reh, Martin Zachar, Tereza Jurczykova
Summary: The flammability of particleboards containing waste rubber was evaluated. The utilization of these composites in construction industry was analyzed based on their spontaneous ignition temperatures, mass burning rate, and calorific value. Results showed similar properties between particleboards and particleboards containing waste tires and waste rubber in terms of these parameters.
Article
Environmental Sciences
Francesca Russo, Rosa Veropalumbo, Ludovico Pontoni, Cristina Oreto, Salvatore Antonio Biancardo, Nunzio Viscione, Francesco Pirozzi, Marco Race
Summary: The continuous growth of waste is causing increasing environmental concerns globally, leading to the loss of raw materials and production factors. This research explored the potential of using different waste materials as fillers for hot asphalt mastics, finding that certain waste materials performed better in terms of mechanical and environmental efficiency compared to traditional limestone fillers.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2022)
Article
Materials Science, Paper & Wood
Nabil Hayeemasae, Hanafi Ismail
Summary: This work aimed to develop sustainable composites by using natural rubber and tea waste, addressing the compatibility mismatch issue between the two materials. The introduction of a silane coupling agent significantly improved the interaction between natural rubber and tea waste, enhancing the overall properties of the composites.
Article
Polymer Science
Sung-Hun Lee, Gun-Woo Park, Hee-Jun Kim, Kyungho Chung, Keon-Soo Jang
Summary: The incorporation of surface-modified phlogopite into NR/EPDM considerably enhances various properties of the rubber blend. It improves compatibility between the rubber matrix and phlogopite, similar to the effects of carbon black. The surface-modified phlogopite/NR/EPDM rubber composite shows higher elasticity compared to silica- and carbon black-reinforced composites.
Article
Chemistry, Physical
Fouad Laoutid, Soumaya Lafqir, Antoniya Toncheva, Philippe Dubois
Summary: The study explores the use of vulcanized and devulcanized ground tire rubber microparticles as a minor phase in ABS and TPO for 3D printing to improve the circular economy of the automotive industry by proposing a promising route for recycling tire rubber waste. The results showed that the composites are suitable for filament production and offer interesting mechanical performances, with some blends having high impact properties similar to TPO-based composites.
Review
Green & Sustainable Science & Technology
R. Taurino, F. Bondioli, M. Messori
Summary: Waste valorization is an important area of research that aims to find environmentally friendly and innovative strategies for processing various types of waste. This review focuses on the recent development of waste valorization strategies in polymeric matrices for sustainable production of new polymer matrix composites.
MATERIALS TODAY SUSTAINABILITY
(2023)
Article
Materials Science, Composites
Nisha Bagotia, Harshal Mohite, Nidhi Tanaliya, D. K. Sharma
POLYMER COMPOSITES
(2018)
Article
Chemistry, Physical
Y. You, X. H. Jin, X. Y. Wen, V. Sahajwalla, V. Chen, H. Bustamante, R. K. Joshi
Article
Green & Sustainable Science & Technology
Rifat Farzana, Ravindra Rajarao, Irshad Mansuri, Veena Sahajwalla
JOURNAL OF CLEANER PRODUCTION
(2018)
Article
Chemistry, Multidisciplinary
Samane Maroufi, Mohannad Mayyas, Rasoul Khayyam Nekouei, Mohammad Assefi, Veena Sahajwalla
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
(2018)
Article
Chemistry, Multidisciplinary
Samane Maroufi, Rasoul Khayyam Nekouei, Veena Sahajwalla
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
(2018)
Article
Environmental Sciences
H. Garg, N. Nagar, M. N. Ansari, G. Ellamparuthy, S. Angadi, A. Akcil, C. S. Gahan
INTERNATIONAL JOURNAL OF ENVIRONMENTAL SCIENCE AND TECHNOLOGY
(2020)
Article
Engineering, Environmental
R. Khanna, R. Saini, M. Park, G. Ellamparuthy, S. K. Biswal, P. S. Mukherjee
Article
Engineering, Chemical
G. Ellamparuthy, S. I. Angadi, D. S. Rao, M. K. Ghosh, S. Basu
Summary: The study demonstrates that separation and purification of metal particles from end-of-life mobile printed circuit boards can be achieved through multiple crushing stages and flotation processes, resulting in high-grade metal recovery. Analysis using microscopes shows that the metal particles are irregular in shape, with minimal interlocking observed with non-metallic materials.
PARTICULATE SCIENCE AND TECHNOLOGY
(2021)
Article
Green & Sustainable Science & Technology
Claudia A. Echeverria, Jerome Ozkan, Farshid Pahlevani, Mark Willcox, Veena Sahajwalla
Summary: This study reports the potential inhibitory effect on microbial and fungal colonization of hydrothermal hot-compression for the manufacture of novel cellulose-based panels engineered for insulating building applications. The technique renders the novel materials non-toxic, additive-free, biodegradation resistant, and increases the recyclability potential of the materials. The promising results demonstrate that complex cellulosic waste materials can be converted to low-microbial biomass potential industrial feedstock for the green manufacturing of building materials.
JOURNAL OF CLEANER PRODUCTION
(2021)
Article
Engineering, Environmental
Smitirupa Biswal, Farshid Pahlevani, Saroj Kumar Bhattacharyya, Veena Sahajwalla
RESOURCES CONSERVATION AND RECYCLING
(2020)
Article
Engineering, Environmental
Rumana Hossain, Veena Sahajwalla
Summary: By utilizing selective thermal micro-recycling, plastic from end-of-life FPCBs was converted into activated carbon, resulting in a high-performance carbon electrode with excellent electrochemical properties. This study opens up new pathways for recovering and developing high-performance, green materials from waste FPCBs.
RESOURCES CONSERVATION AND RECYCLING
(2021)
Article
Materials Science, Multidisciplinary
Veena Sahajwalla, Rumana Hossain
Summary: Developments in recycling technology have mainly focused on short-life-cycle products, neglecting complex, resource-rich, long-life-cycle electronic products and components. This article suggests a shift towards a product-centric approach, which emphasizes the circularity of the whole product and the combined use of design and recovery methods. Opportunities for improved circularity include design for disassembly, material substitution, selective synthesis of metals, high-throughput manufacturing, and the use of recycled materials.
Article
Energy & Fuels
Rumana Hossain, Montajar Sarkar, Veena Sahajwalla
Summary: The LIB market is growing due to consumer demand and the need to reduce GHG emissions. It is crucial to understand the impacts of lithium metal mining on human health, farming, and the ecosystem. To minimize environmental impacts and conserve resources, the supply chain for LIBs should include recycling from waste. Additionally, studying the hazards and economic considerations of waste LIB management is important.
WILEY INTERDISCIPLINARY REVIEWS-ENERGY AND ENVIRONMENT
(2023)
Review
Chemistry, Physical
Hamza Saleem, Monireh Khosravi, Samane Maroufi, Veena Sahajwalla, Anthony P. O'Mullane
Summary: The transition to renewable energy requires energy storage technologies, and green hydrogen production via water electrolysis is considered a practical solution. To ensure environmental sustainability, the deployment of electric vehicles and energy generation/storage devices needs to continue. Recycling waste materials can alleviate the demand for scarce resources and contribute to the development of cost-effective catalysts for green hydrogen production.
SUSTAINABLE ENERGY & FUELS
(2022)
Article
Multidisciplinary Sciences
Himanshi Garg, Neha Nagar, Ganapathy Ellamparuthy, Shivakumar Irappa Angadi, Chandra Sekhar Gahan