A Review on Utilization of Light Weight Fly Ash Cenosphere as Filler in both Polymer and Alloy-Based Composites

Kushnoore, Shashikant; Kamitkar, Nitin; Atgur, Vinay; Uppin, Mallikarjun S; Satishkumar, M.

doi:10.30564/jmer.v3i2.1737

Cited by 6 publications

(3 citation statements)

References 28 publications

(28 reference statements)

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“…The need for composite materials with advanced properties and reduced weight has been widely exploited with cenosphere filler particles. [24,25] The lightweight properties of these polymers make them suitable for weightsensitive structural applications. The high cost of the polymer is sometimes a limiting factor, and hence, lowcost fillers are preferred for reducing the overall cost of the components for various applications.…”

Section: Introductionmentioning

confidence: 99%

Effect of micro‐ and nanofiller hybrids on the dynamic mechanical properties of glass reinforced epoxy composites

Bommegowda

Renukappa

Rajan³

2021

Polymer Composites

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Reinforcement of epoxy glass fabric composites with nano-and micro-fillers has resulted in the development of polymer composites with good electrical, thermal, and mechanical properties. The present work attempts to estimate the impact of hybrid fillers on dynamic-mechanical properties of the epoxy composites with a different filler. The dynamic mechanical parameters such as storage modulus, loss modulus, and damping factor over a temperature of 25 C-250 C have been investigated. The viscoelastic properties of composites are also confirmed with a Cole-Cole plot. From the results, the storage modulus of the composites is observed to lie in the range of 8000 to 12,500 MPa, and the epoxy composite with silicon carbide filler shows the highest storage modulus. Composite with 5 wt% of alumina shows the maximum loss modulus of 2100 MPa. The glass transition temperature of the base epoxy composite is 135 C and it increases to 137 C with the incorporation of hybrid cenosphere and molybdenum sulfide fillers. The storage modulus shows only marginal differences as compared to their counterparts with nanofillers but is higher by about 10-15% in comparison to the micron filler-based composites. However, the differences in the loss modulus of the nanocomposites, hybrid composites, and the composites with micron-sized filler are not significant.

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Section: Introductionmentioning

confidence: 99%

Effect of micro‐ and nanofiller hybrids on the dynamic mechanical properties of glass reinforced epoxy composites

Bommegowda

Renukappa

Rajan³

2021

Polymer Composites

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“…Cenosphere constitutes 2-3% of fly ash and is extremely of low density (300-500 kg/m 3 ). Cenosphere can be easily transmitted through air and water due to its low density [14][15][16][17][18]. Transit of cenosphere through the air may pose a threat to living things because inhaling this minute particle results in respiratory problems.…”

Section: Introductionmentioning

confidence: 99%

Experimental investigation on the influence of cenosphere on mechanical and rheological properties of Portland cement pastes

Kumar,

Ramasamy,

Soundararajan

et al. 2024

Matéria (Rio J.)

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Cenosphere is a captivating material in the realm of cementitious materials. Its unique properties, such as being superfine, spherical, and hollow, make it a suitable additive in concrete. Fine cenosphere particles can efficiently bridge the gap among the cement particles. This increases the density and reduces porosity, thereby enhancing the performance of the concrete. The experimental results suggest that incorporating cenosphere up to 15% can lead to notable improvements in the properties of the concrete. This optimal content ensures the enhancements without detriment to the other significant characteristics of concrete. In the present scenario, cenospheres offer a sustainable solution for enlightening the characteristics of cement paste and reducing the environmental footprint of waste accumulation.

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“…Coal fly ash, the major byproduct (60-95%) from pulverized coal combustion [1,2], contains hollow aluminosilicate spherical particles, cenospheres, which can be useful in many industrial applications due to their unique properties, such as low bulk and apparent density, high thermal resistance, chemical stability, compressive strength, and low thermal conductivity [3][4][5][6]. Of the promising directions for the use of cenospheres that have been considered recently, the following can be noted: low-density ceramic [7,8] and metal syntactic foams [9,10], porous mullite ceramics [11], polymermatrix composites [12], catalysts and carriers [13,14], composite materials for biomedical applications [15], and lightweight cement concrete [16].…”

Section: Introductionmentioning

confidence: 99%

Characterization of Silicate Glass/Mullite Composites Based on Coal Fly Ash Cenospheres as Effective Gas Separation Membranes

Fomenko,

Rogovenko,

Anshits

et al. 2023

Materials

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Membrane technology is a promising method for gas separation. Due to its low energy consumption, environmental safety, and ease of operation, membrane separation has a distinct advantage over the cryogenic distillation conventionally used to capture light inert gases. For efficient gas recovery and purification, membrane materials should be highly selective, highly permeable, thermally stable, and low-cost. Currently, many studies are focused on the development of high-tech materials with specific properties using industrial waste. One of the promising waste products that can be recycled into membrane materials with improved microstructure is cenospheres—hollow aluminosilicate spherical particles that are formed in fly ash from coal combustion during power generation. For this purpose, based on narrow fractions of fly ash cenospheres containing single-ring and network structure globules, silicate glass/mullite composites were prepared, characterized, and tested for helium–neon mixture separation. The results indicate that the fragmented structure of the cenosphere shells with areas enriched in SiO2 without modifier oxides, formed due to the crystallization of defective phases of mullite, quartz, cristobalite, and anorthite, significantly facilitates the gas transport process. The permeability coefficients He and Ne exceed similar values for silicate glasses; the selectivity corresponds to a high level even at a high temperature: αHe/Ne—22 and 174 at 280 °C.

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A Review on Utilization of Light Weight Fly Ash Cenosphere as Filler in both Polymer and Alloy-Based Composites

Cited by 6 publications

References 28 publications

Effect of micro‐ and nanofiller hybrids on the dynamic mechanical properties of glass reinforced epoxy composites

Effect of micro‐ and nanofiller hybrids on the dynamic mechanical properties of glass reinforced epoxy composites

Experimental investigation on the influence of cenosphere on mechanical and rheological properties of Portland cement pastes

Characterization of Silicate Glass/Mullite Composites Based on Coal Fly Ash Cenospheres as Effective Gas Separation Membranes

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