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323 articles for “polymer”
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Potential of Natural Fibres for Strengthening Existing Structures – A Review
Abstract: To rehabilitate the deficiencies in the existing structures, synthetic/artificial fiber reinforced polymer composites have been considered as an effective external strengthening material for construction industries since a long period, due to their outstanding performances like high strength-to-weight ratio, lightness, and resistance to corrosion. But few of their drawbacks in terms of high cost, environmental issues etc., they have been triggered the introduction and development of natural fibers. Natural fibres are …
Published in International Journal of Structural Engineering and Analysis · Vol. 4, Issue 2, 2018 · pp. 38–46 Read article
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Effect of Binder Type, Binder Content, Aggregate Gradation, Temperature and Air Voids on Rutting Susceptibility of Bituminous Mixes
Abstract: Abstract This paper presents an experimental investigation carried out to evaluate the rutting susceptibility of bituminous mixes. The effect of binder type and content, aggregate gradation and temperature are evaluated by means of a wheel tracking test. Two conventional VG 30 and VG 40 binders and one SBS polymer modified binder PMB 40 are used. Three types of aggregate gradations for bituminous concrete (BC), a dense graded mix commonly used …
Published in International Journal of Transportation Engineering and Traffic System · Vol. 1, Issue 2, 2015 · pp. 31–39 Read article
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Short Review on Nanofluidics with the Experimental Demonstration on Microfluidic Capillary Flow inside Microchannel Bends
Abstract: In this research work, author has presented a short review on nanofluidics. Total three individual microchannel bends as microfluidic devices are designed, fabricated and tested in this experimental work using author’s own hands-on completely. Polymethylmethacrylate (PMMA) is the selected polymeric material to fabricate these microfluidic devices. Dyed water is prepared as working liquid to test these microfluidic devices. According to this experimental study, the surface-driven microfluidic flow of dyed water …
Published in International Journal of Applied Nanotechnology · Vol. 6, Issue 1, 2020 · pp. 16–22 Read article
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Short Report on the Passive Microfluidic Flow of Ethanol towards Nanofluidics in Nanotechnology
Abstract: In this experimental work, a single gradual expansion microchannel is fabricated by polymethylmethacrylate (PMMA) as polymeric material using author’s own hands-on in the maskless lithography, hot embossing lithography, and direct bonding technique. Dyed ethanol is prepared as working liquid. A CMOS camera catching 25 frames per second with a corresponding time-scale resolution of 0.04 second is used by author to record the surface-driven microfluidic flow of dyed ethanol in the …
Published in International Journal of Applied Nanotechnology · Vol. 7, Issue 2, 2021 · pp. 13–17 Read article
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Enhancing the Flame Resistance of Hybrid Composite Materials with Inorganic Retardants
Abstract: Fire safety is a crucial component of measures with the goal of minimizing damage from restricting the spread of fires, preventing flashover, and measuring how to inhibit their beginning. It is feasible to flee for a longer amount of time if flames are prevented or delayed. Consequently, it effectively protects property, health, and life. Polymer characteristics that resist heat and fire frequently altered through the addition of particulate fillers. Numerous …
Published in International Journal of Energetic Materials · Vol. 8, Issue 2, 2022 · pp. 1–9 Read article
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MWCNT AND GRAPHENE FOR IMPROVED CORROSION RESISTANCE OF MILD STEEL
Abstract: ABSTRACTThe protective coating method is a passive corrosion protection technique. The protective coating detaches the metallic surfaces from the aggressive media, such as moisture, salts, acids etc. Nanotechnology is a relatively modern development in scientific research, the development of this concept occurred over a very short period of time. One technique that has recently been used to increase the adhesive and anti-corrosive properties of polymer coatings is the addition of …
Published in International Journal of Metallurgy and Alloys · Vol. 6, Issue 2, 2020 · pp. 12–17 Read article
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Biosynthesis of Chitosan mediated nanoparticles for Preservation of Food and Its Antimicrobial activity
Abstract: In this study, chitosan nanoparticles were synthesized from chitosan polymer by ionic gelation method. The chitin was first extracted from Saccharomyces cerevisiae and then deacetylated to chitosan. The presence and characterization of chitosan nanoparticles was investigated by UV-Visible Spectroscopy (UV) and scanning electron microscopy (SEM). The antimicrobial property of these chitosan nanoparticles were studied against E.coli, S.aureus, S.typhi, P.aureginosa, C.albicans and A.niger and compare with chitosan polymer. CSNPs showed higher …
Published in International journal of Nanobiotechnology · Vol. 3, Issue 1, 2017 · pp. 16–24 Read article
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Synthesis of chitosan mediated nanoparticles and its antimicrobial activity
Abstract: In this study, chitosan nanoparticles were synthesized from chitosan polymer by ionic gelation method. The chitin was first extracted from crab shell and then deacetylated to chitosan. The presence and characterization of chitosan nanoparticles was investigated by UV-Visible Spectroscopy (UV) and scanning electron microscopy (SEM). The antimicrobial property of these chitosan nanoparticles were studied against E.coli, S.aureus, S.typhi, P.aureginosa, C.albicans and A.niger and compare with chitosan polymer. CSNPs showed higher …
Published in International journal of Nanobiotechnology · Vol. 3, Issue 2, 2017 · pp. 31–35 Read article
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Antibacterial Surface
Abstract: Surface modification of different materials to provide antibacterial properties are getting great attention in the last few decades. Formation of biofilm is one of the major reason of bacterial infections of various biomaterials. Surface coating and functionalization can prevent formation of biofilm for different applications. Formation of biofilm is a complicated process which involves several phenomena occurring over a period of time. Bacterial adhesion is the first step in the …
Published in International Journal of Nanomaterials and Nanostructures · Vol. 6, Issue 1, 2020 · pp. 45–47 Read article
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Experiments on the Passive Capillary Flow of Aqueous Ethanol in Sudden Expansion Microchannels towards the Applications in Nanofluidics and Nanoelectromechanical Systems
Abstract: In this work, total three individual sudden expansion microchannels are designed and fabricated by maskless lithography, hot embossing lithography and direct bonding technique inside the cleanroom laboratory. Polymethylmethacrylate (PMMA) is used as the selected polymer to fabricate these microchannels. Aqueous ethanol (15% ethanol, 85% dyed water) is prepared and used as dyed working liquid. Surface-driven (passive) capillary flow of prepared working liquid is recorded by a CMOS camera corresponding to …
Published in International Journal of Composite and Constituent Materials · Vol. 6, Issue 1, 2020 · pp. 15–22 Read article
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Green Hydrogen based Green Nanotechnology for Industrial Nano waste Treatment
Abstract: The research into nanowaste treatment and recycling is ongoing process. Particularly the development of new methods and technology for nanowaste treatment is a focus of most professionals, scientist and engineers. One of the developments among the emerging technology is the green nanotechnology, which is environmental friend, affordable, an alternative means of clean energy productions, and economically cost effective. This research is therefore, focused on assessment of chemical related waste and …
Published in International Journal of Composite and Constituent Materials · Vol. 8, Issue 2, 2022 · pp. 41–48 Read article
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Physico-mechanical, and Biodegradation Properties of Polyethylene/Food Polysaccharide Blends
Abstract: Hydrophilic/polar and hydrophobic/non-polar materials do not blend well, which causes issues in the production of biodegradable plastic. Plasticizer (glycerol) was one of the components added to the mixture to increase compatibility between the two materials; this also made the film less brittle. The purpose of this study is to look at how different food polysaccharide contents affect the physico-mechanical, and biodegradation characteristics of novel polymeric-based bio-composite films made from low-density …
Published in International Journal of Composite and Constituent Materials · Vol. 9, Issue 1, 2023 · pp. 1–13 Read article
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Review on Natural Fiber Composites: Banana/Hemp Fiber and Its Hybrid Composites
Abstract: The centuries ago usage of composites materials plays important role in industrial revolution. In ancient days Egyptians used straw as reinforcement in clay bricks to build house. With the invented of glass fiber and resins, glass fiber reinforced composites found its application in many areas. Abundance nature and moderate specific strength than most of the organic fibers, low density and biodegradable nature make the natural fiber as attractive reinforcement in …
Published in International Journal of Composite Materials and Matrices · Vol. 1, Issue 2, 2015 · pp. 14–27 Read article
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A Mini Review on Properties and Application of Composite Materials
Abstract: This study demonstrates the need of composite materials over common materials. Using different molding methods, composite components are manufactured in different sectors. The primary advantage of composite is lightweight, relative stiffness and strength properties. The key concepts of composites are its physical properties, material properties, tooling, design, inspection and repair. Military vehicles, such as airplanes, helicopters, and rockets, placed a premium on high-strength, light-weight materials. While the metallic components that …
Published in International Journal of Composite Materials and Matrices · Vol. 3, Issue 1, 2017 · pp. 1–8 Read article
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Recent Progress of Post-reactor and Reactor-made Polypropylene-based Thermoplastic Elastomers
Abstract: The global market for thermoplastic elastomer (TPE) is growing rapidly owing to the rising demand from the packaging, automotive, healthcare, construction, electrical, electronics and other sectors. Significant progress has been made in the last few decades in the development of different TPE. Polypropylene being low-cost, corrosion resistance, better mechanical properties and readilyavailable, has attracted several researchers to develop polypropylene based thermoplastic elastomers (PP-TPE). This review focuses on recent advancements in …
Published in International Journal of Composite Materials and Matrices · Vol. 8, Issue 2, 2022 · pp. 1–18 Read article
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Synthesis of Bromobutyl Rubber: Effect of Reaction Temperature and Time on Bromobutyl Rubber Microstructure
Abstract: Butyl rubber is prepared by cationic polymerization process either by solution or slurry phase by randomly copolymerizing isobutylene with small amount of isoprene (1-3 mol %). It has good air impermeability and oxidative stability and thus finds extensive use in inner tube applications. The presence of unsaturation in the form of isoprene units in butyl rubber provides a means of enhancing useful properties of this important commodity elastomer by incorporation …
Published in International Journal of Composite Materials and Matrices · Vol. 9, Issue 1, 2023 · pp. 30–39 Read article
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Isolation and Characterization of Tamarind Seed Polysaccharides Being Used as a Biopolymer in Modern Drug Delivery System
Abstract: Tamarind seed polysaccharide (TSP) obtained from the seed of Tamarindus indica tree. It possesses different properties like high viscosity, broad pH tolerance, biocompatibility, mucoadhesive nature. It is used as thickener, stabilizer, gelling agent in food and pharmaceutical industries and Gums are widely used natural materials for conventional and novel dosage forms. The objective of present investigation was to search for a cheap and effective natural polymer that can be used …
Published in International Journal of Polymer Science and Engineering · Vol. 2, Issue 1, 2016 · pp. 1–6 Read article
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Similar Analysis of Blend of Virgin PVC and NBR with Recycled PVC and NBR
Abstract: Studies about led on mixing of polymers like acrylonitrile butadiene elastic (NBR) and polyvinylchloride (PVC) to deliver new polymeric materials with particular properties which can be utilized for some exceptional applications. This mix has been formulated for items working in contact with castor oils. Mixes at various temperature show that an ideal temperature exists for its arrangement. Incorporating PVC in various compositions has enhanced their physico-mechanical and chemical properties of …
Published in International Journal of Polymer Science and Engineering · Vol. 2, Issue 1, 2016 Read article
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Potential Applications of Biocompatible and Biodegradable Nature of Biopolymer
Abstract: Biopolymer is a polymer that is obtained from living organisms. It is an eco-friendly chemical compound that is considered as the most organic compound in the ecosphere. The name “Biopolymer” specifies that it is a bio-degradable polymer. Biopolymers are one of the alternatives of fossil fuels. This short communication represented the several types of applications of Biopolymer in our daily life.
Published in International Journal of Polymer Science and Engineering · Vol. 3, Issue 1, 2017 · pp. 38–43 Read article
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SYNTHESIS, CHARACTERIZATION AND STUDY OF PHOTOCATALYTIC ACTIVITY OF PVA CAPPED ZINC INDIUM SELENIDE NANOPARTICLES UNDER UV LIGHT IRRADIATION USING METHYL RED DYE
Abstract: In this work, we report the structural morphology, optical properties and photocatalytic activity of polymer capped zinc indium selenide nanoparticles, which have been synthesized by solvothermal method. PVA is acted as capping agent. The PVA capped zinc indium selenide nanoparticles were characterized using XRD, SEM with EDAX, AFM, TEM and UV-Vis absorption spectroscopy. The structural properties of PVA capped zinc indium selenide nanoparticles have been characterized by X-ray diffraction (XRD) …
Published in International Journal of Polymer Science and Engineering · Vol. 5, Issue 1, 2019 · pp. 41–51 Read article