Critical Review of Natural Fiber Reinforced Hybrid Composites: Processing, Properties, Applications and Cost

Polymers, Journal Year: 2021, Volume and Issue: 13(20), P. 3514 - 3514

Published: Oct. 13, 2021

Increasing scientific interest has occurred concerning the utilization of natural fiber-enhanced hybrid composites that incorporate one or more types enhancement. Annual fiber production is estimated to be 1,783,965 × 103 tons/year. Extensive studies have been conducted in domains natural/synthetic as well natural/natural composites. As synthetic fibers better rigidity and strength than fibers, superior qualities via hybridization compared fibers. In general, compounds lower characteristics, limiting use reinforced by fiber. Significant effort was spent enhancing mechanical characteristics this group materials increase their strengths applications, especially process, manipulating fiber-reinforced composite materials. Current concentrate on understanding fiber-matrix adhesion, processing methods, compatibility. The optimal resilient conceptions also addressed due inherently significant variabilities. Moreover, much research tackled costs. addition, review article aims offer a variables lead structural failure polymer composites, an overview details costings

Language: Английский

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Recent applications of carbon-based composites in defence industry: A review

Defence Technology, Journal Year: 2022, Volume and Issue: 18(8), P. 1281 - 1300

Published: March 15, 2022

Carbon-based composites, including carbon reinforced composites and carbon-matrix in defence technologies have raised a lot of attention due to its significant physical capabilities, superior thermal mechanical stability, eco-friendly nature. composite which incorporating with various carbonaceous materials such as coke, char, black carbon, activated fibre other nanomaterials (carbon nanotubes, nanofibres, graphene graphite) are the greatest viable option for development advanced technologies. In this review article characteristics carbon-based discussed their distinct application sectors; aeronautics, maritime, automotive, electronics, energy storage, electromagnetic interference (EMI) shielding structures. The origin production techniques were discussed. promising future technology, particularly chemical sensors, drug delivery agents, radar technologies, nanocomposites low cost, easy availability, flexibility design processing.

Language: Английский

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Current Prospects for Plastic Waste Treatment

Polymers, Journal Year: 2022, Volume and Issue: 14(15), P. 3133 - 3133

Published: July 31, 2022

The excessive amount of global plastic produced over the past century, together with poor waste management, has raised concerns about environmental sustainability. Plastic recycling become a practical approach for diminishing and maintaining sustainability among management methods. Chemical mechanical are typical approaches to waste, simple process, low cost, environmentally friendly potential profitability. Several materials, such as polypropylene, polystyrene, polyvinyl chloride, high-density polyethylene, low-density polyurethanes, can be recycled chemical approaches. Nevertheless, due waste’s varying physical properties, separation becomes challenge. Hence, reliable effective technology is critical increasing value rate. Integrating technologies would an efficient method reducing accumulation contaminants by especially in industrial uses. This review addresses recent advances technology, mainly recycling. article also discusses current various materials.

Language: Английский

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Conversion of Plastic Waste to Carbon-Based Compounds and Application in Energy Storage Devices

ACS Omega, Journal Year: 2022, Volume and Issue: 7(16), P. 13403 - 13435

Published: April 13, 2022

At present, plastic waste accumulation has been observed as one of the most alarming environmental challenges, affecting all forms life, economy, and natural ecosystems, worldwide. The overproduction materials is mainly due to human population explosion well extraordinary proliferation in global economy accompanied by productivity. Under this threat, development benign green alternative solutions instead traditional disposal methods such conversion into cherished carbonaceous nanomaterials carbon nanotubes (CNTs), quantum dots (CQDs), graphene, activated carbon, porous utmost importance. This critical review thoroughly summarizes different types daily used plastics, their types, properties, ways effect on environment health, treatment materials, carbon-based compounds through synthetic schemes, utilization energy storage devices particularly supercapacitors, future perspectives. main purpose help targeted audience design futuristic study desired field providing information about work done past few years.

Language: Английский

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Structure-oriented conversions of plastics to carbon nanomaterials

Carbon Research, Journal Year: 2022, Volume and Issue: 1(1)

Published: Aug. 2, 2022

Abstract The accumulation of waste plastics has caused serious environmental issues due to their unbiodegradable nature and hazardous additives. Converting different carbon nanomaterials (CNMs) is a promising approach minimize plastic pollution realize advanced manufacturing CNMs. reported plastic-derived carbons include filaments (i.e. nanotubes nanofibers), graphene, nanosheets, sphere, porous carbon. In this review, we present the influences intrinsic structures on pyrolysis intermediates. We also reveal that non-charring are prone being pyrolyzed into light hydrocarbons while charring aromatics. Subsequently, favor form graphite aromatics inclined amorphous during formation process. addition, conversion tendency various morphologies concluded. discuss other impact factors transformation process, including catalysts, temperature, processing duration templates, how obtain morphological CNMs from plastics. Finally, current technology limitations perspectives presented provide future research directions in effective CNM synthesis.

Language: Английский

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A review of plastic pollution and their treatment technology: A circular economy platform by thermochemical pathway

Chemical Engineering Journal, Journal Year: 2023, Volume and Issue: 464, P. 142771 - 142771

Published: April 3, 2023

Language: Английский

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Biodegradation of Typical Plastics: From Microbial Diversity to Metabolic Mechanisms

International Journal of Molecular Sciences, Journal Year: 2024, Volume and Issue: 25(1), P. 593 - 593

Published: Jan. 2, 2024

Plastic production has increased dramatically, leading to accumulated plastic waste in the ocean. Marine plastics can be broken down into microplastics (<5 mm) by sunlight, machinery, and pressure. The accumulation of organisms release additives adversely affect health marine organisms. Biodegradation is one way address pollution an environmentally friendly manner. microorganisms more adapted fluctuating environmental conditions such as salinity, temperature, pH, pressure compared with terrestrial microorganisms, providing new opportunities pollution. Pseudomonadota (Proteobacteria), Bacteroidota (Bacteroidetes), Bacillota (Firmicutes), Cyanobacteria were frequently found on biofilms may degrade plastics. Currently, diverse plastic-degrading bacteria are being isolated from environments offshore deep oceanic waters, especially Pseudomonas spp. Bacillus Alcanivoras Actinomycetes. Some fungi algae have also been revealed degraders. In this review, we focused advances biodegradation their enzymes (esterase, cutinase, laccase, etc.) involved process polyethylene terephthalate (PET), polystyrene (PS), (PE), polyvinyl chloride (PVC), polypropylene (PP) highlighted need study sea.

Language: Английский

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Towards environmentally sustainable management: A review on the generation, degradation, and recycling of polypropylene face mask waste

Journal of Hazardous Materials, Journal Year: 2023, Volume and Issue: 461, P. 132566 - 132566

Published: Sept. 17, 2023

Language: Английский

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Waste to energy: Trending key challenges and current technologies in waste plastic management

The Science of The Total Environment, Journal Year: 2023, Volume and Issue: 913, P. 169436 - 169436

Published: Dec. 29, 2023

Due to the 'forever' degrading nature of plastic waste, waste management is often complicated. The applications are ubiquitous and inevitable in many scenarios. Current global plastics production ca. 3.5 MMT per year, with current trend, will reach 25,000 by 2040. However, rapid growth manufacture material's inherent resulted accumulation a vast amount garbage. recycling rate <10 %, while large volumes discarded cause environmental ecological problems. Recycling rates for vary widely region type plastic. In some developed countries, around 20-30 developing nations, it much lower. These statistics highlight magnitude problem urgent need comprehensive strategies manage more effectively reduce its impact on environment. This review critically analyses past studies essential efficient techniques turning trash into treasure. Additionally, an attempt has been made provide understanding upcycling process, 3Rs policy, life-cycle assessment (LCA) conversion. advocates pyrolysis as one most promising methods valuable chemicals. addition, can be severely impacted due uncontrollable events, such Covid 19 pandemic. chemical certainly bring value end-of-life LCA analysis indicated there still huge scope innovation area compared mechanical recycling. formulation policies heightened public participation could play pivotal role reducing repercussions facilitating shift towards sustainable future.

Language: Английский

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Current and Future Trends for Crude Glycerol Upgrading to High Value-Added Products

Sustainability, Journal Year: 2023, Volume and Issue: 15(4), P. 2979 - 2979

Published: Feb. 7, 2023

Crude glycerol is the main byproduct of biodiesel manufacturing from oleaginous crops and other biomass-derived oils. Approximately 10% crude produced with every batch biodiesel. Worldwide, there a glut price it has decreased considerably. There are real opportunities for valorizing into higher value-added chemicals which can improve economic viability production as an alternative fuel. Exploring new potential applications in various sectors needed such pharmaceuticals, food beverages, cosmetics, transportation However, directly often contains impurities that hinder its direct industrial usage thus, refining process typically expensive. Hence, this review reports on current upgrading technologies—thermo-, bio-, physico-, electrochemical approaches—that valorize chemicals. Through comparison between those viable techniques, future research directions, challenges, advantages/disadvantage technologies described. Electrochemical technology, still underdeveloped field, highlighted, due to simplicity, low maintenance cost, working ambient condition, shows promising be applied major technique.

Language: Английский

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