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521 articles for “dispersant”
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Chlorine Leakage from Control Valve in Charging Station Pipeline: A Case Study
Abstract: This paper describes accidental release of chlorine gas from control valve through a chlorine charging system in a green color pigment manufacturing chemical industry. The chlorine gas dispersed over the entire reactor floor and nearby area at night time shift work. This paper presents root cause analysis of the incident. Corrective and preventive measures are also discussed. Finally, conclusions reached with recommendations are drawn for industrial facilities for handling and …
Published in Journal of Industrial Safety Engineering · Vol. 1, Issue 2, 2014 · pp. 1–6 Read article
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Comparison of Hazard Potential of LPG Handling Units in GCU using Consequence Analysis
Abstract: The scope of this work was to quantitatively assess the risks involved in a section of a chemical process plant where LPG is produced using various consequence analysis models. The Gas Concentration Unit (GCU) was considered for the analysis as it produces a major portion of the LPG in a Petroleum Refinery. The Debutanizer, Stripper and HP (high pressure) Receiver, the three units which handle LPG, were considered for consequence …
Published in Journal of Industrial Safety Engineering · Vol. 2, Issue 3, 2015 · pp. 34–48 Read article
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Study on GP Zones Formation in the Sc Inoculated Ternary Al-Zn-Mg Alloys
Abstract: Mostly, ternary Al-Zn-Mg (7075) alloys are used in automotive and aerospace engineering due to readily age-hardening response and high specific strength-to-density ratio. Scandium (Sc) has great inoculation effect in Al-Zn-Mg alloys. The cast Al-Zn-Mg alloys system undergoes a complex transition sequence in order to gain maximum strength. This sequence consists of solutionizing then immediate quenching in water (T4), natural ageing and artificial ageing (T6); usually, in several temperature steps to …
Published in Journal of Materials & Metallurgical Engineering · Vol. 6, Issue 2, 2016 · pp. 53–69 Read article
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Wear Characteristics of Aluminium-Graphite Composites Produced by Stir Casting Technique
Abstract: Metal matrix composites (MMCs) are finding more applications due to their significantly improved properties such as high specific strength, high specific modulus, good damping capacity and good wear resistance compared to unreinforced alloys. In recent years, there has been an increasing interest in composites containing low density and low cost reinforcements. Graphite is one of the most suitable and low density reinforcement available for making light-weight and wear resistant parts …
Published in Journal of Materials & Metallurgical Engineering · Vol. 4, Issue 3, 2014 · pp. 13–20 Read article
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Evaluation of Mechanical Property and Optimization of the Dry Sliding Wear Behavior of Carbon Black-Alumina-Epoxy-Glass Composite by using Design of Experiments
Abstract: The research work is mainly focused on investigating the effects of wear parameters: filler content (0%, 4% CB, 4% Al2O3,and 2% CB + 2% Al2O3), applied load (4.905, 9.810, 14.710, and 19.62 N), sliding distance (20, 30, 40, and 50 mm) by using Design of Experiments (DOEs) approach. The experimental results were analyzed using MINITAB V16 scientific graphical and data analysis software. Signal-to-Noise (S/N) ratio, analysis of variance (ANOVA) proved …
Published in Journal of Materials & Metallurgical Engineering · Vol. 4, Issue 2, 2014 · pp. 21–31 Read article
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Origins of Several Foam Ample Forms in Materials Science
Abstract: Foam culture refers to the light weight philosophy for the additional subject released from appropriate specific performance in relation to the environment. Regular study has been done to actualize the subject required under ballistic strength of degeneration issues. The cases studied in this article were from polymer functional ceramic issues as well as originating flexible regions. Though, water-purification areas on the coast have origins Ni-nano that uses carbon-tubed analogs to …
Published in Journal of Materials & Metallurgical Engineering · Vol. 10, Issue 3, 2020 · pp. 32–36 Read article
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Surface Modified Abaca Fibers: Physico-Mechanical, Morphological and Degradation Properties Evaluation
Abstract: Lignocellulosic fibers are used as cost-cutting fillers in plastics factories. Amid several factors, the ultimate performance of composite ingredients depends on the bond between the matrix resin and the filler, and hence on the quality of the interface. To acquire optimal performance of the end product, adequate interaction between the matrix and the lignocellulosic ingredient is preferred. This is often acquired through surface modification of the matrix or filler. Abaca …
Published in Journal of Materials & Metallurgical Engineering · Vol. 12, Issue 2, 2022 · pp. 34–46 Read article
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Smart Agriculture Robot with Autonomous Functions
Abstract: Blades that can efficiently cut through field grass are coupled to a high-speed DC motor that powers the robot. The seedling sowing system makes sure that seeds are dispersed precisely and uniformly for best growth. To keep plants' moisture levels at their ideal levels, the watering system is made to spray water on them at regular intervals. The robot has a black line sensor that makes it easy for it …
Published in Journal of Microelectronics and Solid State Devices · Vol. 10, Issue 1, 2023 · pp. 29–35 Read article
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Hazards of Power Production-A comparative study
Abstract: Nuclear energy has played a major role in reducing the world's use of oil for electricity generation over the past decades. Current estimates are that uranium resources will last some 400 to 500 years at the present rate of use. This resource base could, furthermore, last some 50 times longer if breeder reactors are introduced. Of the main energy sources, namely coal, hydro and nuclear, nuclear can be even considered …
Published in Journal of Nuclear Engineering & Technology · Vol. 11, Issue 1-2, 2021 · pp. 1–20 Read article
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Studies on two recently commercialized scintillators for gamma-ray spectroscopy and imaging
Abstract: The present work is aimed to study some characteristics of the two recently commercialized CRY18 and CRY19 crystals (Crytur, Cz), namely the elemental compositions, and the suitability of a TiO 2 -based white-pigment as light-reflector around the blind faces of the scintillators. The energy dispersive X-ray fluorescencetechnique has been used for the first goal while the second one has been performed by comparing the emission spectrum of the first crystal …
Published in Journal of Nuclear Engineering & Technology · Vol. 12, Issue 2, 2022 · pp. 24–32 Read article
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Hybrid effect of nanoperlite and nanoclay on mechanical and rheological properties of low-density polyethylene
Abstract: The effect of two kinds of nanomaterials, nanoclay (NC) and nanoperlite (NP) was studied on morphological, rheological, mechanical and dynamic-mechanical properties of low-density poly ethylene (LDPE). It was found that hybrid nanofiller dispersion in LDPE depended on the type (hybrid or individual form) and in higher extent also on the amount of the nanofiller incorporated. Rheological results revealed that storage modulus and complex viscosity of hybrid nanofiller-filled LDPE nanocomposites increased …
Published in Journal of Polymer & Composites · Vol. 6, Issue 1, 2018 · pp. 32–41 Read article
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Halloysite nanotubes – A novel reinforcing material for future applications
Abstract: The distinctive nano materials such as nano powder, nano fluids, nano tubes, nano rods, nano particles, nano fibres and so forth are used in the field of nanotechnology. These nano materials are toxic in nature so not viewed as safe for people and for nature too. Halloysite nano tubes (HNT) are eco-friendly, naturally occurring cheaply available kaolinite group mineral. HNT incorporated materials have good in strength, thermal resistance and freely …
Published in Journal of Polymer & Composites · Vol. 7, Issue 1, 2019 · pp. 34–40 Read article
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Synthesis and Experimental Evaluation of Graft Polymer Nanocomposite in Water Based Drilling Fluid System for Reactive Unconventional Reservoirs
Abstract: AbstractThis experimental work discusses the evaluation of polyacrylamide-grafted-gum arabic/carboxymethyl cellulose nanocomposite as a drilling mud additive for the drilling of reactive shale formations which may lead to wellbore instability. The synthesized nanocomposite was synthesized with free polymerization technique and it was characterized by XRD, FTIR, and FESEM. Then, it was preceded in the development of the WBDMS. Its effect on the rheological and filtration control properties of the formulated mud …
Published in Journal of Polymer & Composites · Vol. 5, Issue 2, 2017 · pp. 34–41 Read article
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Synthesis of Poly(Methyl Methacrylate) Latex Using Batch Emulsion Polymerization Reactor: Experimental and Simulation Study
Abstract: AbstractThe rationale for the present study was to develop Poly(methyl methacrylate) polymer latex, using free radical emulsion polymerization mechanism, in which water acted as the continuous aqueous phase, methyl methacrylate monomer as the dispersed phase, potassium persulfate (KPS) as an initiator and sodium dodecyl sulfate (SDS) as the stabilizing agent. PMMA is a versatile thermoplastic resin, used widely because of its excellent performance in optical and medical field. The characterization …
Published in Journal of Polymer & Composites · Vol. 4, Issue 1, 2016 · pp. 37–44 Read article
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Study of Mechanical and Thermal Properties of Unsaturated Polyester/CuO Nanocomposites
Abstract: AbstractThe CuO nano particles were synthesized from copper sulfate pentahydrate aqueous solution under the low hydrothermal condition at 80°C. The size of the CuO nanoparticles was calculated from TEM. FTIR spectra confirmed the formation of the CuO nanoparticles. Nanocomposites of unsaturated polyester resin with different loading of nano CuO fillers were prepared by casting method. The mechanical properties of the composites such as tensile behavior, flexural behavior, impact strength and …
Published in Journal of Polymer & Composites · Vol. 3, Issue 3, 2015 · pp. 35–42 Read article
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Synthesis and Characterization of Ether Containing Tetraglycidyl Epoxy Reinforced with Amine Functionalized Graphene Oxide (F-Go) and It’s Nanocomposites
Abstract: AbstractTGDDE matrix material along with functionalized graphene oxide (F-GO) as reinforcement was used to develop a unique skeletally modified tetra functional epoxy nanocomposites. Amine functionalization of graphene oxide nanoparticles (F-GO) on its surface was achieved by grafting 3-aminopropyltriethoxysilane (APTES) as coupling agent. The FT-IR spectrum revealed that the silane coupling agent was covalently bonded to the surface of graphene oxide nanoparticles, offering better dispersibility and compatibility with TGDDE epoxy matrix. …
Published in Journal of Polymer & Composites · Vol. 3, Issue 2, 2015 · pp. 39–51 Read article
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Alcid Bamboo
Abstract: AbstractNatural bamboo is one of the fastest growing plants, with maturity cycle of 3–4 year, thus making highly attractive natural renewable resource compared to hardwood. This bamboo can replace timber in many applications, but their mechanical property differs with species, age, climatic factor, moisture content and different height of culm. Due to this the natural bamboo can be replaced by synthetic one which are man-made and also known as engineered …
Published in Journal of Polymer & Composites · Vol. 2, Issue 3, 2023 · pp. 28–32 Read article
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Taguchi Analysis of the Thrust Force and Delamination in Drilling of Glass Fiber Reinforced Epoxy/Clay Nanocomposites
Abstract: AbstractComposites are replacing several materials due to their superior properties such as high strength to weight ratio, high stiffness to weight ratio, better impact characteristics, corrosion resistance and design flexibility. Drilling is often required to facilitate the assembly of the parts to get the final product. However, drilling induced damage affects the quality of the drilled components. The present investigation is an attempt to study the effect of the cutting …
Published in Journal of Polymer & Composites · Vol. 2, Issue 2, 2023 · pp. 14–23 Read article
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Parametric Study of Twin Screw Extrusion for Processing Epoxy/Carbon Black Nanocomposites Using Orthogonal Array Technique
Abstract: AbstractThis paper presents the experimental investigation of the influence of process parameters of twin screw extrusion on the dispersion and electrical, thermal and mechanical properties of epoxy/CB nanocomposites. Four factors, namely, loading level of carbon black (0, 2, 4, 6, 8 and 10 wt%) in epoxy, screw speed (75, 100 and 125 rpm), temperature (5 °, 15 ° and 30 °C) and number of passes (5, 10 and 15) were …
Published in Journal of Polymer & Composites · Vol. 1, Issue 2, 2013 · pp. 15–26 Read article
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Evaluating Novel Inhibitor Pigment Blends using Electrochemical Scanning Techniques (EIS, SVET and SKP)
Abstract: AbstractOne of the main applications coming to the fore for scanning vibrating electrode technique (SVET) and scanning Kelvin probe (SKP) systems is ability to look at inhibitor combinations, which could be used to replace chromates in coil-coated galvanized steels. The results are very promising using the SVET system and results with the SKP system also show results to be comparable with the SVET system. Electrochemical impedance spectroscopy (EIS) is also …
Published in Journal of Polymer & Composites · Vol. 1, Issue 1, 2013 · pp. 6–16 Read article