Polymer Nanocomposites and Cr(VI) Removal from Water

Singh, Navjeet

doi:10.15226/2374-8141/1/1/00104

Cited by 5 publications

(8 citation statements)

References 42 publications

(41 reference statements)

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“…Inorganic nanofillers can be dispersed into the polymer matrices via four different ways: (i) intercalation method based on the exfoliation of LSs; (ii) sol-gel process which starts, at room temperature, with a molecular precursor and then forms by hydrolysis and condensation reactions a metal oxide framework; (iii) in situ formation of nanofillers and in situ polymerization of monomers in the presence of fillers previously obtained and (iv direct mixing of the polymer and the nanofillers, either as discrete phases (melt mixing), or in solution (solution mixing) [ 91 ]. In the following section, well-established preparation techniques to obtain nanocomposites materials are described.…”

Section: Preparation Methodsmentioning

confidence: 99%

“…, silicates) into a solvent in which the polymer is soluble and is known as exfoliation or adsorption process. When the solvent is eliminated from the polymer-clay complex through evaporation, the silicates sandwich the polymer to form a multi-layered structure (see Figure 18 ) [ 91 , 93 ].…”

Section: Preparation Methodsmentioning

confidence: 99%

“…, silicate) with the polymer in the molten state. If the surfaces of the silicate layers are sufficiently compatible with the polymer chains, the polymer can be inserted into the interlayer space, without any solvent, forming intercalated or exfoliated nanocomposites (see Figure 19 ) [ 91 , 93 ].…”

Section: Preparation Methodsmentioning

confidence: 99%

“…Intercalation of monomers followed by in situ polymerization is the procedure that uses monomers with initiators, which are allowed to polymerize in the presence of the layered filler (one prominent example is clay). During the polymer chains growing, the clay layers are separated and the polymer chains enter the interlayer space, forming polymer/clay nanocomposites (see Figure 20 ) [ 91 , 93 ].…”

Section: Preparation Methodsmentioning

confidence: 99%

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Properties of Polymer Composites Used in High-Voltage Applications

et al. 2016

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Abstract:The present review article represents a comprehensive study on polymer micro/nanocomposites that are used in high-voltage applications. Particular focus is on the structure-property relationship of composite materials used in power engineering, by exploiting fundamental theory as well as numerical/analytical models and the influence of material design on electrical, mechanical and thermal properties. In addition to describing the scientific development of micro/nanocomposites electrical features desired in power engineering, the study is mainly focused on the electrical properties of insulating materials, particularly cross-linked polyethylene (XLPE) and epoxy resins, unfilled and filled with different types of filler. Polymer micro/nanocomposites based on XLPE and epoxy resins are usually used as insulating systems for high-voltage applications, such as: cables, generators, motors, cast resin dry-type transformers, etc. Furthermore, this paper includes ample discussions regarding the advantages and disadvantages resulting in the electrical, mechanical and thermal properties by the addition of micro-and nanofillers into the base polymer. The study goals are to determine the impact of filler size, type and distribution of the particles into the polymer matrix on the electrical, mechanical and thermal properties of the polymer micro/nanocomposites compared to the neat polymer and traditionally materials used as insulation systems in high-voltage engineering. Properties such as electrical conductivity, relative permittivity, dielectric losses, partial discharges, erosion resistance, space charge behavior, electric breakdown, tracking and electrical tree resistance, thermal conductivity, tensile strength and modulus, elongation at break of micro-and nanocomposites based on epoxy resin and XLPE are analyzed. Finally, it was concluded that the use of polymer micro/nanocomposites in electrical engineering is very promising and further research work must be accomplished in order to diversify the polymer composites matrices and to improve their properties.

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Section: Preparation Methodsmentioning

confidence: 99%

Section: Preparation Methodsmentioning

confidence: 99%

Section: Preparation Methodsmentioning

confidence: 99%

Section: Preparation Methodsmentioning

confidence: 99%

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Properties of Polymer Composites Used in High-Voltage Applications

et al. 2016

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“…or on a large scale (layers, pultrusions, ribs, etc.). Composites are also classified as particle reinforced, fibre reinforced and sandwich or laminated structure based on the geometry of the reinforcing materials as shown in Figure 1 [1].…”

Section: Introductionmentioning

confidence: 99%

Review on adhesive joints and their application in hybrid composite structures

Jeevi

Nayak

Kader

2019

Journal of Adhesion Science and Technology

161

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Composites have been used extensively in various engineering applications including automotive, aerospace, and building industries. Hybrid composites made from two or more different reinforcements show enhanced mechanical properties required for advanced engineering applications. Several issues in composites were resolved during the last few years through the development of new materials, new methods and models for hybrid joints. Many components in automobile are joined together either by permanent or temporary fastener such as rivets, welding joint and adhesively bonded joints. Increasing use of bonded structures is envisaged for reducing fastener count and riveted joints and there by drastically reducing assembly cost. Adhesive bonding has been applied successfully in many technologies. In this paper, scientific work on adhesively bonded composites and hybrid composites are reviewed and discussed. Several parameters such as surface treatment, joint configuration, material properties, geometric parameters, failure modes, etc. that affect the performance of adhesive bonded joints are discussed. Environmental factors like pre-bond moisture and temperature, method of adhesive application are also cited in detail. A specific case of adhesive joints in hybrid bonded-bolted joints is elaborated. As new applications are expanding in the field of composites joining and adhesive joints, it is imperative to use information on multiple adhesives and their behaviour in different environmental conditions to develop improved adhesive joint structure in mechanical applications.

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Moringa oleifera gum composite a novel material for heavy metals removal

Ravikumar

Udayakumar²

2019

International Journal of Environmental Analytical Chemistry

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Polymer Nanocomposites and Cr(VI) Removal from Water

Cited by 5 publications

References 42 publications

Properties of Polymer Composites Used in High-Voltage Applications

Properties of Polymer Composites Used in High-Voltage Applications

Review on adhesive joints and their application in hybrid composite structures

Moringa oleifera gum composite a novel material for heavy metals removal

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