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1281 articles for “Mixing”
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Potential of Midrib of Cocos nucifera Leaf for Reinforcement of Plastics
Abstract: AbstractCoconut palm (Cocos nucifera) is an abundant crop of tropical areas. In the present work, mechanical properties of midrib of coconut palm leaf as tensile strength, tensile modulus, flexural strength, flexural modulus impact strength and elongation at break is experimentally determined and compared with other fibers. Single-fiber pull-out test is conducted to determine critical embedded length and interfacial adhesion between fiber and matrix for reinforcement in polyester resin. Tensile test …
Published in Journal of Polymer & Composites · Vol. 3, Issue 1, 2015 · pp. 25–32 Read article
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Studies in Effect of Alumina Nanoparticles on the Properties of Unplasticized Polyvinylchloride (PVC)
Abstract: AbstractUnplasticized polyvinylchloride (PVC)/nano-alumina composites were prepared using high- speed mixer, two-roll mills and compression molding. In the composite, the concentration of nano-alumina was varied from 0 to 7 phr (parts per hundred). The prepared composites were characterized for mechanical, thermal, electrical, crystallinity and morphological properties. Optimal improvement in properties was obtained at 5 phr concentration of nano-alumina in the PVC matrix. Tensile strength, tensile modulus, flexural strength, flexural modulus and …
Published in Journal of Polymer & Composites · Vol. 1, Issue 2, 2013 · pp. 27–34 Read article
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Synthesis and Characterization of Certain Biodegradable Chitosan/Lactic Acid-based Polyester Blend Films
Abstract: AbstractBiodegradable blend films based on chitosan with poly(ethylene glycol lactate-co-ethylene glycol terephthalate), PEGLT and poly(butylene lactate-co-butylene succinate), PBLSA, were prepared by solution-mixing and film-casting method. The main objective of this investigation was the study and characterization of chitosan/lactic acid-based polyester blends which are useful as bio-packaging material for potential food applications. The first part of the investigation was related to the synthesis and characterization of polyesters, PEGLT and PBLSA by …
Published in Journal of Polymer & Composites · Vol. 1, Issue 2, 2013 · pp. 35–45 Read article
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Investigation on Properties of Water and Methylene Chloride Blown Rigid Polyurethane Foam
Abstract: Physical properties are important parameters which influence the other properties and performance of rigid polyurethane foam (RPUF). Water and methylene chloride are the important ingredients of RPUF which act as blowing agents and influence the density, morphology and fire properties. RPUF samples were prepared from crude 4, 4’-diphenylmethane diisocyanate (CMDI), polyether polyol, triethylene diamine (TED), 1, 4-butane diol, polysiloxane ether, water and methylene chloride. RPUF with different densities were prepared …
Published in Journal of Polymer & Composites · Vol. 2, Issue 1, 2023 · pp. 46–54 Read article
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Development of Starch/Keratin/Chitosan Composite Material as a Substitute for Polystyrene in Food Packaging
Abstract: The increase in awareness of the environmental impact of non-biodegradable waste from food packaging, has seen manufacturers push towards initiating production of eco-friendly packaging materials. This research serves as a step forward in the direction of going green, through the development of a composite material from natural, biodegradable polymers, for use in production of packaging material for fast foods. The composite was prepared from starch and chitosan with chicken feather …
Published in Journal of Polymer & Composites · Vol. 7, Issue 3, 2019 · pp. 1–7 Read article
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Effect of concentration of Halloysite nanotubes on the Mechanical, Thermal and electrical properties of NBR/PP Elastomer nanocomposites
Abstract: Preparation of nanocomposites from immiscible polymer blends system has been investigated in this work. Natural clay named halloysite nanotubes are incorporated in the immiscible blend system using melt mixing process to prepare halloysite based nanocomposites comprising of PP/NBR blend system. FTIR studies have been carried out to establish the structure properties relationship. Nanocomposites are characterized by SEM for morphological studies. The thermal stability of nanocomposites has been evaluated by TGA …
Published in Journal of Polymer & Composites · Vol. 8, Issue 2, 2020 · pp. 62–67 Read article
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Development of Refractory Synthesized from Waste Ceramic Fiber and Chamotte
Abstract: Research on refractory materials is always essential in thermal engineering to ensure both heat savings and environmental protection. Raw materials used initially have a great influence on the production process and product properties. In addition, the refractory products are tested under conditions of high temperature and varying intensity, such as tests of thermal shock resistance. In this study, new refractory composites were prepared by mixing waste ceramic fibers with chamotte …
Published in Journal of Polymer & Composites · Vol. 8, Issue 2, 2020 · pp. 101–109 Read article
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Enhancement of Dielectric Properties of PVDF Composites with MWCNT and GCNF Fillers
Abstract: The paper discusses the role of multiwalled carbon nanotube (MWCNT) and graphitized carbon nanofibre (GCNF) in Polyvinylidene fluoride (PVDF) composites prepared by melt mixing method. Analytical studies were carried out using X-ray diffraction analysis (XRD) and Fourier transform infrared spectroscopy (FTIR) for understanding the role of fillers. Formation of β phase crystalline structure with a relative increase in β phase content is observed and is maximum at 5 wt.% of …
Published in Journal of Polymer & Composites · Vol. 8, Issue 3, 2020 · pp. 43–52 Read article
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Geopolymerization: A Review on Physico-chemical Factors Influence to the Reaction Process
Abstract: A geopolymer is one of materials belonging to an inorganic polymer group based on alumino-silicate structural networks. The material is a product of reactions among the activated alumino silicate resources and solutions of alkaline activators in various conditions. There have been many investigations conducted to produce geopolymer using different raw materials and methods. The chemical factors have a decisive role in the reaction process and the formation of the geopolymeric …
Published in Journal of Polymer & Composites · Vol. 8, Issue 3, 2020 · pp. 1–9 Read article
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Microstructural Characteristics and Mechanical Properties of the Green Composites Reinforced Bamboo Optimized the Treated Parameters
Abstract: Concrete and steel are traditional building materials with high strength and stress. They are usedeffectively in civil construction, structures of bridges and others. According to the current trend, theconstruction materials have more attention for low density and high durability which produced fromnatural materials; moreover, they are able to be recycled and reused. In this study, the green compositeswere fabricated based on the highly performance epoxy combined with bamboo to get …
Published in Journal of Polymer & Composites · Vol. 9, Issue 1, 2021 · pp. 28–38 Read article
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Assessment on the Physical Characteristics of Polymer Materials for Additive Layer Manufacturing Processes
Abstract: Polymer materials have the capacity to morph into a soft form and flow when heated, then return to their original hardness when cooled, making them excellent for heat fabrication procedures. Acrylonitrile Butadiene Styrene (ABS) is a high-grade polymer with exceptional mechanical qualities and heat resistance that is commonly used in aircraft and vehicle manufacture. These polymers are mixed with other materials to create alloys, which are primarily used in the …
Published in Journal of Polymer & Composites · Vol. 9, Issue 3, 2021 · pp. 1–9 Read article
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Developments in Functional PVC and Its Composites
Abstract: The main aim of this review study is to summarise the progress and recent modifications in the area of functionalised PVC including chlorinated PVC, PVC copolymers and their composite developments. Functionalized PVC and its copolymers shown very good improved properties which enhanced the PVC application domain as compare to other polymers. Due to the higher chlorine content polyvinyl chloride (PVC) shows higher mechanical and fire-resistive properties which are suitable for …
Published in Journal of Polymer & Composites · Vol. 10, Issue 1, 2022 · pp. 55–67 Read article
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Role of GO and rGO on the Structural Properties of PA6/PMMA Blend Nanocomposites
Abstract: To understand and assess the role of Graphene Oxide (GO) and reduced graphene oxide (rGO) in the PA6/PMMA blend, nanocomposites, the PA6/PMMA (50:50 wt%) blend-based nanocomposites were prepare by loading different wt% of GO and rGO (1wt% and 3wt%), through twin screw melt extrusion followed by injection moulding technique. Different compositions of the nanocomposites were prepared using melt mixed method at 2300C by applying a rotational torque 50 N. All …
Published in Journal of Polymer & Composites · Vol. 10, Issue 1, 2022 · pp. 1–10 Read article
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Synthesis and formability of Al/(Fe-Mn) particulate compositeusing stir casting
Abstract: Demand for lightweight and fuel economy by automotive and aircraft industries focuses to explore different materials. Alloys and composites developed with same objective to obtain superior desired mechanical properties compatible for such intended applications. However, alloy consider as solid solutions with metallic properties and cannot mix with primary major element in random proportions. This forced researcher community to develop composites, which are heterogeneous solid solutions or multi-phase materials comprising matrix …
Published in Journal of Polymer & Composites · Vol. 10, Issue 1, 2022 · pp. 80–88 Read article
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Synthesis and Characterization of Polymer Blend Electrolyte Based on Bio-degradable Polymers Doped with Ammonium Iodide
Abstract: A polymer blend of Polyvinylalchohol (PVA) and Polyvinylpyrrilodine (PVP) doped with ammonium iodide (NH4I) has been prepared by solution casting method to develop a new solid polymer electrolyte. The influence of NH4I on the structural, electrical characteristics of PVA/PVP blend was investigated utilizing XRD, FTIR and impedance spectroscopy techniques. Structural properties were studied by using the XRD technique and found that the pure polymer blend is in semi crystalline form, …
Published in Journal of Polymer & Composites · Vol. 10, Issue 2, 2022 · pp. 60–71 Read article
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Effect of Curing Time on Physico-mechanical Properties on Dental Composite
Abstract: This study aim to investigate the influence of curing time on physical and mechanical properties of a dental composite cured by using LED light with intensity of 1500 mW/cm2 in the range of 440-480 nm. We prepared the glass ionomer powder by fusion of various inorganic components at high temperature and studied the influence of silica/alumina ratio keeping other inorganic salts such as Calcium fluoride (CaF2), Sodium Fluoride (NaF), Calcium …
Published in Journal of Polymer & Composites · Vol. 10, Issue 3, 2022 · pp. 36–47 Read article
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Preparation and Characterization of Composites Based on Polylactide and Herbs with Anti-Bacterial Properties
Abstract: Poly (lactic acid) is a polymer with increased interest in manufacturing a containers for different kinds of food. But the food stored in those containers comes with certain amount of bacteria and/ or molds. This suggest that the food can have shorter shelf life. That why is needed a container in which the food can maintain for longer period. In this paper were studied the properties of composite materials based …
Published in Journal of Polymer & Composites · Vol. 11, Issue 1, 2023 · pp. 10–19 Read article
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Application of Aqueous Two-Phase Systems in the Extraction of Bovine Serum Albumin
Abstract: Protein partitioning in an aqueous two-phase system (ATPS) has been found to be a powerful method for extracting and separating mixtures of biomolecules. In ATPS, many factors influence the partition coefficient K (which is the ratio of protein concentration in the top phase to that in the bottom phase) and the recovery percent (Rec%). Two systems of ATPS were used: first, polyethylene glycol (PEG4000)/sodium phosphate, and second, PEG4000/dextran. The behavior …
Published in Journal of Polymer & Composites · Vol. 11, Issue 1, 2023 · pp. 41–50 Read article
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Investigation on Mechanical Properties of Bamboo-Plastic Composites by Alkali Treatment and Illustration via Scanning Electron Microscopy
Abstract: The morphological properties, tensile and flexural strength of composite materials made of bamboo fibres and plastic were investigated. Bamboo-plastic composites (BPCs) were made from bamboo fibres, plastic, and urea formaldehyde (UF) resin to evaluate the effects on mechanical properties. Two different types of plastics, namely polypropylene (PP) and low-density polyethylene (LDPE) were used to make the composite fabrication. The bamboo fibres were extracted after soaking them in a sodium hydroxide …
Published in Journal of Polymer & Composites · Vol. 11, Issue 3, 2023 · pp. 86–95 Read article
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A Method for Power System Reliability Enhancement Considering Optimal Transmission Switching and Dynamic Line Thermal Rating
Abstract: In the power industry, the focus has been almost exclusively on implementing equipment that can keep the power system reliable. With the growth of renewable energy, resource integration, system load uncertainties, and volatile weather conditions, electric utilities are faced with an increasingly complex and uncertain operating environment. Utilities are in need of a series of cost-effective technologies which allow them to operate power systems more economically and reliably. Due to …
Published in Journal of Power Electronics and Power Systems · Vol. 8, Issue 3, 2018 · pp. 1–8 Read article