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323 articles for “polymer”
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Dielectric Barrier Discharge Plasma Processing on Pristine PMMA Surfaces for Microfluidic Applications towards Applied Nanotechnology
Abstract: In this experimental work, a total of six individual microchannel bends as microfluidic devices are fabricated by maskless lithography, hot embossing lithography and direct bonding technique using polymethylmethacrylate (PMMA). Air dielectric barrier discharge (DBD) plasma processing is the selected surface modification technique in this particular experimental work. Dyed aqueous ethanol (10% ethanol, 90% dyed water) is the prepared working liquid to study the microfluidic flow characteristics. Effect of channel aspect …
Published in International Journal of Composite and Constituent Materials · Vol. 6, Issue 1, 2020 · pp. 1–7 Read article
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Nanocomposites: The Fusion of Nanotechnology and Composite Materials
Abstract: Nanocomposites, resulting from the integration of nanotechnology and composite materials, have emerged as a cutting-edge class of materials with exceptional properties and multifunctional capabilities. This article presents a concise overview of the principles, fabrication methods, and diverseapplications of nanocomposites, highlighting their profound impact on numerous industries. By harnessing the power of nanotechnology, nanocomposites offer precise control over material structure and properties at the nanoscale. Through the incorporation of nanoscale reinforcements, …
Published in International Journal of Composite and Constituent Materials · Vol. 9, Issue 1, 2023 · pp. 43–50 Read article
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Experimental evaluation of dc Conductivity of Rice Husk Reinforced Polypropylene Composites with addition of cenosphere
Abstract: Insulating materials are used in electrical power circuits to prevent leakages of current. Main objective of this study is to evaluate the dc conductivity of rice husk filled polypropylene composites with and without cenosphere. The conductivity at room temperature was found to decreases from 2.64e-13 to 9.371e-14 S cm-1 with the addition of cenosphere. Dense packing of the material, collapse of pores and decreases in air gap between the rice …
Published in International Journal of Composite Materials and Matrices · Vol. 1, Issue 1, 2015 · pp. 20–27 Read article
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Study of Composite Material
Abstract: Polymeric composition compound with a plasticizer or very low proportion of pigment or processing aids are nonordinary consider as a composition the goal is to improve strength stiffness or toughness or dimensional stability by embedding particles in matrix or binding phase.
Published in International Journal of Composite Materials and Matrices · Vol. 2, Issue 1, 2016 · pp. 43–53 Read article
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Status of Composite Materials in Automobile Sector
Abstract: Composite materials may someday have big advantages over steel in automobile manufacturing. Composites are being considered to make lighter, safer and more fuel-efficient vehicles. A composite is composed of a high-performance fiber (such as carbon or glass) in a matrix material (epoxy polymer) that when combined provides enhanced properties compared with the individual materials by themselves. Carbon-fiber composites weigh about one-fifth as much as steel, but are as good or …
Published in International Journal of Composite Materials and Matrices · Vol. 3, Issue 1, 2017 · pp. 27–30 Read article
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Short Review on the Classification of Micromixers
Abstract: Miniaturisation of micron-scale devices produces advantages in analytical chemistry and life science. Micromixers are being used in modern microfluidic systems to facilitate the laboratory-scale operation in small microchips towards the production of microfluidic laboratory-on-a-chip systems for global-market. Polymers are proved to be suitable materials for the fabrication of micromixers. Passive micromixers have the advantage of simple designs and low cost of fabrication. Micromixers have the applications in analytical chemistry and …
Published in International Journal of Composite Materials and Matrices · Vol. 4, Issue 1, 2018 · pp. 1–3 Read article
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Thermo-Mechanical Properties of Banana and Jute Fiber Reinforced Polypropylene Composites
Abstract: Abstract Present research aims at finding out better fiber reinforcement for low cost and eco-friendly polymer matrix composite. Polypropylene was chosen as a matrix, while jute and banana fiber were chosen as reinforcement. Composites were prepared by using a hot press machine. Fiber loading was varied at 0, 4 and 8 volume%. Both raw jute and banana fiber was chemically treated with 5 wt% sodium carbonate and composites were also …
Published in International Journal of Composite Materials and Matrices · Vol. 5, Issue 2, 2019 · pp. 37–47 Read article
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Mechanical characterization of hybrid natural fibre composites developed through compression moulding process
Abstract: Increasing environmental concerns these days due to excessive consumption of fossil-fuel products have impacted our atmosphere, which has led several researchers to work in the field of polymer composites reinforced by natural fibres. In this research, the emphasis is on developing the completely biodegradable green composites using polylactic acid (PLA) as a matrix and reinforcement with jute and sisal fiber by compression molding method and effect of various parameters on …
Published in International Journal of Composite Materials and Matrices · Vol. 6, Issue 1, 2020 · pp. 29–35 Read article
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Finite Element Analysis of Composite Pressure Vessel with Non-Geodesic Fiber Trajectory In view of Friction Factors on Cylinder and End Domes
Abstract: Composites are materials created by dissimilar materials with a view to improve the properties or to create materials with desired properties. Progressive Fiber Polymer Composites have developed as an essential class of industrial materials for load carrying applications with well-rounded properties for many industrial and social applications. Structures like pressure vessels, pipes and motor casings made-up of Filament Winding technology are widely used in aerospace applications. Conventionally, pressure vessels were …
Published in International Journal of Composite Materials and Matrices · Vol. 7, Issue 2, 2021 · pp. 9–21 Read article
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Mercerization and Mechanical Properties of Natural Fibre Reinforced Composite: A Comprehensive Review
Abstract: Growing public concern about environmental issues has prompted the production of renewable, economical, and ecologically friendly materials. Thus a shift from synthetic fiber reinforced composites to natural fiber reinforced composites can be seen. Since Fibre reinforcement is deciding factors in the Structural properties of any engineered composite. But poor interfacial adhesion of fibre matrix obstruct it's potential while using in structural applications. Different studies suggested that the surface modification techniques …
Published in International Journal of Composite Materials and Matrices · Vol. 8, Issue 1, 2022 · pp. 1–8 Read article
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Deposition and characterization of poly(o-anisidine)/TiO2Nanocomposite for gas sensing application
Abstract: The Poly(o-anisidine) (POA) and Titanium dioxide POA (POA/TiO2 ) composite thin film based for gas sensing application are synthesized. Pure POA and POA/TiO2 composites with 20wt% of TiO2 were synthesized by chemical oxidative polymerization of o-anisidine using ammonium persulfate in acidic medium at 0-50C. Thin films of POA and POA/TiO2 composites were deposited on glass plate by dip coating method to prepare the chemiresistor sensor. The structural and optical properties …
Published in International Journal of Polymer Science and Engineering · Vol. 1, Issue 1-2, 2015 Read article
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Kinetic Study of Polyester Derived from Glycolyzed PET Waste With Varied Composition
Abstract: In this investigation, the production of secondary value-added products, such as saturated polyester, derived from the glycolysis of poly(ethyleneterephthalate) (PET) is examined as an effective way for PET recycling. The glycolyzed PET (GPET) obtained was reacted with mixture of phthalic anhydride and glycol with varied composition and their reaction kinetic were studied. During polyesterification it was observed that degree of polymerization (DPn) and extent of reaction (p) is increased, while …
Published in International Journal of Polymer Science and Engineering · Vol. 1, Issue 1-2, 2015 Read article
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Synthesis and Characterization of Poly(etherdiphenylene terephthalamide)-Metal Complexes in Heterogeneous Medium
Abstract: Condensation of terephthalic acid and 4,4ʹ-diaminodiphenyl ether resulted in aminoterminated oligomeric poly(etherdiphenylene terephthalamide) (PODTA) using phosphorylation technique. Schiff base complexes of this polyamide were synthesized with salicylaldehyde and 2-hydroxy-1-naphthaldehyde complexes of Co(II),Ni(II) and Cu(II). All the synthesized polyamide as well as Schiff’s base complexes were characterized by elemental analysis, IR spectroscopy and magnetic susceptibility measurements. Thermal stabilities of ligand and its various complexes were compared by thermogravimetric analysis. While, Co(II) …
Published in International Journal of Polymer Science and Engineering · Vol. 2, Issue 1, 2016 · pp. 13–19 Read article
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FABRICATION AND EVALUATION OF VINYL ESTER RESIN BASED HYBRID COMPOSITES
Abstract: Jute is most widely used natural fiber in combination of various polymer because of easy availability, low environment impact, low density, low production cost, satisfactory mechanical properties and usage in wide range of applications. Mechanical properties of fibers are depending upon various factors such as fiber length, fiber orientation, fiber contact etc. In the present study, composite of Jute (J) and Glass fiber (G) have been fabricated using hand lay …
Published in International Journal of Polymer Science and Engineering · Vol. 3, Issue 1, 2017 · pp. 26–31 Read article
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Castor Oil: A Sustainable and Natural Source of Raw Material for Polyurethane Foam Synthesis
Abstract: ABSTRACTUtilization of castor oil and its derivatives as a raw material for polyurethane synthesis is gaining more attention now a days. Castor oil has the unique structural property in terms of inherent presence of hydroxyl groups in its structure, which impart the natural functionality in the castor oil. Castor oil can be utilized for manufacturing polyurethane due to its inherent structural beauty in terms of presence of OH groups in …
Published in International Journal of Polymer Science and Engineering · Vol. 5, Issue 2, 2019 · pp. 18–30 Read article
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A Critical Evaluation of Polypropylene Impact Copolymer Morphology
Abstract: In order to improve Polypropylene (PP) impact strength, the process of copolymerizing propylene with ethylene is being used. Polypropylene copolymer is essentially a rubber-toughened material consisting of polypropylene homo-polymer matrix in which ethylene-propylene rubber (EPR) is distributed. The overall impact behavior of the copolymer is solely controlled by the rubber morphology and its distribution in polypropylene matrix, which plays a critical role on crystallinity. Even a similar impact grade polypropylene …
Published in International Journal of Polymer Science and Engineering · Vol. 5, Issue 2, 2019 · pp. 1–8 Read article
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Cords of tyres to shed hybridization
Abstract: AbstractCords of tyres have descriptive issues for mechanical stability, break at elongation strength and dimensions. Two polymer reinforced cord form has lying usage from nylon and polyester to search respects for hybridized contributed formation after form from chords. Poly(ethylene naphthalate)-in-polyester yarn or aramid-in-nylonhybrid has provisioned steel cord substitution to raise steer-in-speed at subjective low-in-weight shed. Competencies among as routed fabrics under differential twisting has almost similar break-in-twist strengths as well …
Published in International Journal of Polymer Science and Engineering · Vol. 6, Issue 2, 2020 · pp. 5–11 Read article
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A Study on Evaluation of Mechanical Properties of Reinforced Composite Developed Using Corn Husk and Glass Fibre
Abstract: With the increasing demand for the disposal of polymer wastes and environmental waste from agriculture/ farming, this research aims to develop composite materials by using glass fibre and corn husk fibres by hand lay-up technique. The fibre from the maize husk was extracted and then overlapped on glass fibre cloth films in regular or irregular orientations. The reinforcement is done with the epoxy resin. The reinforcement and harden matrix are …
Published in International Journal of Manufacturing and Materials Processing · Vol. 5, Issue 1, 2019 · pp. 32–36 Read article
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Production of Dental Materials by Computer-Aided Manufacturing Technologies
Abstract: The aim of the present paper is to make a review of the modern trends in the development of the technologies for production of dental materials. An understanding of the currently available bonding strategies to CA/CAM materials can help the clinician to select the most indicated system for each category of materials. Three are the main trends in production technologies in dentistry last 30 years: digitalization, simulation and implementation of …
Published in International Journal of Computer Aided Manufacturing · Vol. 3, Issue 1, 2017 · pp. 36–39 Read article
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A Study on Method and Modelling of Structural Analysis and Finite Elements: A Review
Abstract: The finite element method (FEM) or finite element analysis (FEA), is a numerical method usually employed for solving engineering (structural mechanics) and mathematical physics problems. Generally, the analytical solution of these problems require the solution to boundary value problems for partial differential equations. Specimens are usually tested and analysed using finite element method (FEM) for investigating the behaviour of square concrete columns confined by fibre reinforced polymer (FRP) and sheets.
Published in International Journal of Structural Mechanics and Finite Elements · Vol. 3, Issue 2, 2017 · pp. 29–33 Read article