Two-Step Procedure of Fly Ash Modification as an Alternative Method for Creation of Functional Composite

Sroka, Jolanta; Rybak, Andrzej; Sekuła, Robert; Filipczak, Paulina; Kozanecki, Marcin; Sitarz, Maciej

doi:10.1007/s10924-016-0910-4

Cited by 27 publications

(23 citation statements)

References 17 publications

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“…Both these features can be enhanced by filling the epoxy resin with adequate particles. Besides the kind of filler, also the grain size, content and alignment in the matrix strongly influence the final properties of the polymer composite [4][5][6][7][8][9][10][11]. One of the most common kind of filler used for the epoxy system is the quartz flour [5,6,8,9].…”

Section: Introductionmentioning

confidence: 99%

“…HTC material lowers phonon scattering which occurs at the filler-matrix interface and defects during heat transfer by phonons in nonmetallic materials [17][18][19]. The lowered thermal conductivity of the composite is observed when the fillers with very small average size are used due to expanded interface area [6,7,10]. Moreover, the small particles elongate crack path and therefore increase the fracture toughness of a composite [20,21].…”

Section: Introductionmentioning

confidence: 99%

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Aluminosilicate‐epoxy resin composite as novel material for electrical insulation with enhanced mechanical properties and improved thermal conductivity

Rybak

Nieroda

2018

Polymer Composites

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Material used as an electrical insulation has to combine many features, mainly dielectric, mechanical, and thermal parameters should be preserved. Appropriately selected polymer matrix and a suitable filler allow to obtain a multifunctional material for electrical devices. In the presented work, different types of commercial aluminosilicate fillers were used in order to obtain electrical insulation with enhanced properties in relation to reference silica‐epoxy resin composite. Thermal conductivity, mechanical parameters, dielectric properties and structure‐properties relationship were studied in order to examine the influence of size, amount and type of silanization of the filler. Composites filled with aluminosilicates exhibit much better mechanical properties as well as enhanced dielectric properties with 61% relative increase of thermal conductivity when they were compared with silica‐epoxy resin sample. The obtained results indicate that aluminosilicates are very attractive fillers for epoxy‐based composites used as an electrical insulation in power devices. POLYM. COMPOS., 40:3182–3188, 2019. © 2018 Society of Plastics Engineers

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Aluminosilicate‐epoxy resin composite as novel material for electrical insulation with enhanced mechanical properties and improved thermal conductivity

Rybak

Nieroda

2018

Polymer Composites

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“…From the table of results of mechanical properties, the tensile strength compared with the results of Sroka et al published was almost similar. In the work of Sroka et al [3,4], fly ash was modified, while in this work, the interwoven structure of nano additives (MWCNTs) increased material sustainable cooporation and had reinforcing role for materials. e mechanical properties have been improved and still ensure the tensile strength is kept at the prescribed level.…”

Section: Mechanical Propertiesmentioning

confidence: 91%

“…e results show that the mechanical properties have been significantly improved compared to the unmodified fly ash. e work has demonstrated the use of modified fly ash as an additive to make epoxy composite materials that can be applied in the field of civil electricity [4]. Research on the effect of fly ash on the mechanical properties of epoxy composites shows that increasing the mass of fly ash results in reduced tensile strength and increased flexural and compressive strength [5].…”

Section: Introductionmentioning

confidence: 99%

Study on Synergies of Fly Ash with Multiwall Carbon Nanotubes in Manufacturing Fire Retardant Epoxy Nanocomposite

Nguyen

2020

Journal of Chemistry

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In this study, fly ash (FA) and multiwalled carbon nanotubes (MWCNTs) were used to make environmentally friendly nanocomposites, which have high fire retardant properties and high mechanical properties. Industrial waste such as fly ash has become a major concern during the treatment of environmental pollution. MWCNTs were used in this experiment to enhance the flame retardant properties and mechanical properties of materials with fly ash additives. MWCNTs content (0.03, 0.04, and 0.05 wt.%) and fly ash content (30, 40, and 50 wt.%) were studied for three different levels. The flame retardancy of the material is significantly improved by the addition of fly ash/MWCNTs at different rates, especially at 0.04 wt. % MWCNTs and 40 wt. % fly ash with LOI at 26.8%. Regarding mechanical properties, tensile strength increases as fly ash/MWCNTs increase, up to a critical point. On the other hand, the compressive strength of composite increases continuously as fly ash/MWCNTs increase. Scanning electron microscopy (SEM) was used to observe the morphology of fly ash and MWCNTs as well as its distribution in the matrix. This will help analyze the influence of the effectiveness of the combination of fly ash and MWCNTs to the flame retardancy and mechanical properties of fly ash/MWCNTs/epoxy nanocomposites.

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“…Fly ash based light weight composite materials are also reported to be suitable in automotive, chemical and furniture manufacturing industries due to their improved strength, stiffness and thermal resistance. It has been shown that this type of filler enhances the mechanical properties of composites, especially for highly packed systems [18]. Thermal conductivity can also be improved through the addition of a greater amount of filler into the composites based on epoxy resin [19].…”

Section: Introductionmentioning

confidence: 99%

Study on Ohmic Heating Behavior of Fly Ash Filled Carbon Woven/Epoxy Resin Composite

Wang¹

2020

JFBI

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The Ohmic heating behavior and electrical property of the carbon fabric/green epoxy composite laminates filled with various concentrations of unmilled fly ash and milled fly ash were investigated in present work. We used an infrared camera to record the change in surface temperature of composites over a period of time by varying the voltage from 0 to 10 V. The results show that the composite containing low concentration of fly ash exhibited the optimum Ohmic heating behavior under different applied voltages. The maximum temperatures of epoxy/carbon composites were adjustable by controlling the concentrations of fly ash fillers as well as the applied voltage. When a certain voltage was applied to the composite, the surface temperature of composite raised to the maximum within 20 s and became stable, then cool down to room temperature in 120 s. In addition, the milled fly ash filled epoxy/carbon composites were found to reveal improvement in electrical heating performance and structural stability over the unmilled fly ash filled composites.

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Two-Step Procedure of Fly Ash Modification as an Alternative Method for Creation of Functional Composite

Cited by 27 publications

References 17 publications

Aluminosilicate‐epoxy resin composite as novel material for electrical insulation with enhanced mechanical properties and improved thermal conductivity

Aluminosilicate‐epoxy resin composite as novel material for electrical insulation with enhanced mechanical properties and improved thermal conductivity

Study on Synergies of Fly Ash with Multiwall Carbon Nanotubes in Manufacturing Fire Retardant Epoxy Nanocomposite

Study on Ohmic Heating Behavior of Fly Ash Filled Carbon Woven/Epoxy Resin Composite

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