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1976 articles for “MEC” (ranking capped at the first 2,000 matches — narrow the search to see the rest)
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Studies on Mechanical, Optical, Barrier Properties and Characterization of LDPE-PLA Blend Films with Micro Clay
Abstract: Low density poly ethylene (LDPE) and Poly lactic acid (PLA) in the ratio of 70:30 wt% were blended along with ethylene glycidyl meth acrylate (EGMA) as compatibilizer (2.5%), benzophenone as photodegradable additive (1%) and microclay (1,3,5%) as filler. Blending took place in a twin-screw extruder and then the resulting blend was processed into a film using blown film extrusion. Mechanical, optical, barrier and degradative properties of film were tested as …
Published in Journal of Polymer & Composites Read article
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Thermo-mechanical Analysis of Orthotropic plate under Sinusoidally Distributed Thermal load by using Trigonometric shear Deformation Theory (TSDT)
Abstract: For the thermal analysis of simply supported square and rectangular plates applied to sinusoidal distributed linear thermal load throughout the plate thickness and in combination with sinusoidal distributed transverse mechanical loading, a trigonometric shear deformation theory is proposed. In this work, a sinusoidal function in terms of thickness coordinates is being used in the displacement field in conjunction with the transverse shear deformation effect. The normal and shear stress can …
Published in Journal of Experimental & Applied Mechanics Read article
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Mechanism of Action of Essential Oils and their Major Components
Abstract: The essential oil of lemongrass, palm rosa and eucalyptus were found to be good antimicrobial agents. To a large extent the results suggest their potential use as chemotherapeutic agents, food preserving agents, and disinfectants. However before considering these compounds as chemotherapeutic agents against human/animal diseases, it is important to study their cytotoxic and mutagenic effects. Studies were then carried to investigate the probable mechanism by which these compounds act against …
Published in Research & Reviews : Journal of Botany Read article
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Effect of Formaldehyde Treatment on the Barrier and Mechanical Properties of Oat Protein Films
Abstract: Oat protein 5% with 40% glycerol as a plasticizer was used to prepare edible films, and formaldehyde was chemically added to the film's solution at four concentrations. The films' barrier and mechanical properties were then investigated. The films were characterized by being medium transparency, homogeneous, odorless, and with a thickness ranging between 0.12 and 0.15 mm. It was also observed that the water vapor permeability decreased whenever the concentration of …
Published in Journal of Polymer & Composites · Vol. 11, Issue 2, 2023 · pp. 1–8 Read article
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Functionally Graded Natural Fibre and SiC-reinforced Polymer Composite: Mechanical Properties
Abstract: Multifunctional materials, also called functionally graded materials (FGMs), are based on natural fibres or fillers and vary in composition and/or microstructure to control functional, structural, or thermal, properties. Functionally graded materials (FGMs) have been created for use in spacecraft, aircraft, and other engineering applications because they can withstand extremely high temperatures. Particle-reinforced FGMs, which make up the majority of FGMs, are made differently depending on their position. The mechanical and …
Published in Journal of Polymer & Composites · Vol. 11, Issue 4, 2023 · pp. 1–14 Read article
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Exploration of Mechanical Characteristics and Microstructural Analysis of Copper Matrix Composites with Hybrid Reinforcements via Muffle Furnace Sintering
Abstract: Metal Matrix Composites (MMCs) have drawn a lot of interest in the area of innovative materials because of how widely they may be used. Due to their extraordinary qualities, such as high thermal conductivity, higher temperature endurance, improved corrosion resistance, and great weldability, copper matrix composites stand out among them. These qualities make them desirable and promising materials for uses including heat exchangers, automotive parts, and electrical components. In this …
Published in Journal of Polymer & Composites · Vol. 11, Issue 12, 2023 · pp. 119–126 Read article
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Considerations on Fractured Edge Dislocations of Mechanical Tested Hand Laid Hemp Flax GFRP Hybrid Polymer Composites with SEM Verifications
Abstract: In this research study, three types of composite samples are made. Hemp-Glass Fiber (C1), Flax- Glass Fiber (C2), and Hemp-Flax-Glass Fiber Hybrid Composite (C3). For proper fibre-to-fiber adhesion and bonding, a 10:1 mixture of glue (LY556) and brace (HY951) was used. Tensile, flexural, impact, double shear, and hardness research is conducted among all the specimen samples. According to ASTM standards, the comparison is made among C1, C2 and C2 respectively; …
Published in Journal of Polymer & Composites · Vol. 11, Issue 13, 2023 · pp. 1–19 Read article
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Effect of hybridization on mechanical Characteristics of hemp,bamboo and jute reinforced epoxy bio composites
Abstract: In the present study, hemp, jute and bamboo fibres have been reinforced with epoxy resin to develop several bio-composites (hemp/epoxy, jute/epoxy, bamboo/epoxy, hemp/jute/epoxy, hemp, bamboo, epoxy and hemp/jute/bamboo/epoxy). Their mechanical characteristics (impact strength, flexural strength, and tensile strength) have been evaluated by conducting standardized ASTM tests on the fabricated bio-composite specimens. Among these, the hybrid epoxy composite reinforced with hemp, jute, and bamboo fibers has exhibited superior tensile and impact …
Published in Journal of Polymer & Composites · Vol. 12, Issue 3, 2024 · pp. 81–91 Read article
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Evaluation of Mechanical Properties of Carbon Reinforced Composite for Different Process Parameters Using FDM
Abstract: Fused Deposition Modeling (FDM) stands as an advanced rapid prototyping technique, widely appreciated for its efficiency in constructing functional components within a reasonable timeframe. In this experimental exploration, a comparative analysis of mechanical properties was conducted on components manufactured through the FDM technique, specifically with a 20% concentration of SCF-PLA. The study considered process variables like layer thickness, infill pattern, and infill density. Employing diverse process parameters, a standard sample …
Published in Journal of Polymer & Composites · Vol. 11, Issue 13, 2023 · pp. 218–228 Read article
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Revolutionizing Gastro-retentive Drug Delivery: Exploring Innovative Formulation Strategies and Mechanisms in Floating in Situ Gel Raft Forming System
Abstract: An in-depth exploration of the transformative shift underway in gastro-retentive drug delivery, spotlighting the utilization of Floating Drug Delivery Systems (FDDS) and specifically honing in on the innovative formulation strategies and mechanisms inherent in Floating In Situ Gel Raft Forming Systems. FDDS present a promising avenue for revolutionizing drug delivery efficacy by capitalizing on buoyancy to float atop the gastric fluid surface, thereby extending gastric residence time and improving drug …
Published in Trends in Drug Delivery · Vol. 11, Issue 1, 2024 · pp. 9–21 Read article
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Analysis of Thermo-Mechanical Properties in Cement Mortar Using Synthesized Silicate Microencapsulation of Phase Change Materials by Sol-Gel Process
Abstract: This investigation delves into improving building thermal comfort using microencapsulated phase change materials (PCM@SiO2) in cement mortar. The encapsulation process, achieved via a sol-gel method, envelops PCM in a silicate shell Differential Scanning Calorimetry (DSC) and Fourier-Transform Infrared Spectroscopy (FTIR) were used to confirm the thermal properties and integrity of encapsulated PCM, which showed an encapsulation efficiency of 92.7% and a thermal storage capacity of 99.7%. The study involved the …
Published in Journal of Polymer & Composites · Vol. 12, Issue 1, 2024 · pp. 152–160 Read article
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Impact of Tool rotating speeds on the Mechanical characteristics of dissimilar friction stir-welded AZ80A-Mg – AA6061-Al joints
Abstract: In this investigation, separate AA6061-Al and AZ80A-Mg alloy plates were effectively joined through stir welding with friction. We looked closely at the weld joints' characteristics, especially their mechanical aspects. In the experiment, here were multiple tool rotating rates (rpm) of 800, 1000, 1200, 1400, and 1600 used. A cylindrical pin-equipped tool featuring a tapered profile was utilized, inserted into the AA6061 alloy plate is offset by 0.5 mm, while maintaining …
Published in Journal of Polymer & Composites · Vol. 12, Issue 1, 2024 · pp. 161–168 Read article
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Production Methods, Mechanical Characteristics, and Industrial Uses for Metal Matrix Composites
Abstract: Advanced light-weight components known as composites from metal matrix are made of an element the alloy matrix with a second phase incorporated and dispersed throughout to improve certain properties. The composite's property varies according to the remaining phase's size, shape, and quantity. Because of its unique combination of ceramic and metallic features, it has better mechanical and physical qualities. These materials belong to a new breed of engineered materials that …
Published in Trends in Mechanical Engineering & Technology · Vol. 14, Issue 1, 2024 · pp. 1–5 Read article
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A Novel Approach for Power Generation from Ocean Waves Using Ratchet and Pawl Mechanism
Abstract: Renewable energy sources collectively contribute around 29% to 30% of global electricity generation. Solar and wind power’s intermittency and weather dependency pose challenges for unreliable energy generation, requiring storage solutions like batteries and environmental considerations. By considering the above-mentioned factors, ocean wave energy stands out as a promising and consistent renewable source. Ocean wave energy is highly predictable and consistent, offering a dependable power supply with minimal greenhouse gas emissions …
Published in Recent Trends in Fluid Mechanics · Vol. 11, Issue 1, 2024 · pp. 1–7 Read article
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Mechanical and Morphological Analysis of Jute/Manila Hemp Hybrid Composites for Enhanced Structural Performance
Abstract: Natural fiber composites are renowned for their lightweight, strength, corrosion resistance, and high strength-to-weight ratio, often surpassing traditional metals. Despite challenges such as poor fiber-matrix adhesion and moisture susceptibility, hybridizing composites present a viable solution by enabling tailored properties for optimal performance. This study investigates hand-lay-up processed natural fiber composites, specifically woven jute/epoxy, non-woven manila hemp/epoxy, and their hybrid variants. Extensive testing was conducted on mechanical properties including hardness, flexural …
Published in Journal of Polymer & Composites · Vol. 12, Issue 8, 2024 · pp. 1–11 Read article
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Polymeric Approach in Microplastic Degradation Mechanisms
Abstract: Microplastics (> 5 mm size), are silently infiltrating ecosystems on a global scale. The persistence of microplastics in terrestrial and aquatic surroundingss poses a significant ecological and surroundings challenge. Thus, understanding and development of effective degradation mechanisms to mitigate the persistence of microplastics in the surroundings is required. Natural degradation pathways, such as photodegradation, biological degradation, and abiotic degradation have been explored. Polymeric materials possess unique properties that can be …
Published in Journal of Polymer & Composites · Vol. 12, Issue 4, 2024 · pp. 165–172 Read article
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Defensive Mechanisms and Key Strategies with Its Specified Role in Mulberry Silkworm (Bombyx mori L.)
Abstract: Silkworms (Bombyx mori L.) possess a variety of defense mechanisms that play a vital role in protecting them against microbial infections and environmental stressors. These defense systems are primarily innate, relying on cellular and humoral responses. Cellular defenses include hemocytes which are responsible for processes like phagocytosis, encapsulation, and nodule formation. Humoral responses involve the production of antimicrobial peptides (AMP’s), such as cecropins, moricins, and lysozymes, which target invading pathogens. …
Published in International Journal of Insects · Vol. 1, Issue 2, 2024 · pp. 10–14 Read article
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Combine Effect of Metakaolin, Recycled Steel Fiber and Waste Glass Powder on Mechanical Properties of Concrete
Abstract: This study investigates the combined effects of metakaolin, recycled steel fiber, and waste glass powder on the mechanical properties of concrete. Specifically, the research explores concrete mixes with metakaolin, crushed glass powder at 9%, 12%, 15%, and 18%, and recycled steel fiber at 0.5%, 1%, 1.5%, and 2% as partial replacements for cement. The primary aim is to identify the optimal mix proportions that enhance the compressive strength, flexural strength, …
Published in Journal of Construction Engineering, Technology & Management · Vol. 14, Issue 3, 2024 · pp. 7–17 Read article
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Experimental Studies on the Mechanical and Microstructural Properties of Sustainable Concrete Incorporating Palm Oil Industrial Waste
Abstract: Diving into the world of concrete, normal concrete is widely used in construction but poses environmental challenges due to significant carbon dioxide emissions from cement production. Incorporating oil palm shells (OPS) and palm oil fuel ash (POFA) into concrete offers a sustainable alternative, utilizing waste products from the palm oil industry and reducing environmental impact. Experimental studies have examined the use of OPS and POFA as partial replacements for coarse …
Published in Journal of Polymer & Composites · Vol. 12, Issue 7, 2024 · pp. 19–40 Read article
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Mechanical Properties of Rice Husk Ash Based Concrete Composites
Abstract: The production of rice is important all over the world. The husk that is made is usually used as a combustible material to prepare fields, giving energy through both direct combustion and gasification. The material rice husk ash may be quite fine. A common particle size for rice husk ash is 3 to 75 µm. This research demonstrates how the rice husk ash affects the mechanical properties of concrete composites. …
Published in Journal of Polymer & Composites · Vol. 12, Issue 7, 2024 · pp. 67–72 Read article