A review on the degradation of properties under the influence of liquid medium of hybrid polymer composites

Chowdary, M. Somaiah; Raghavendra, G.; Kumar, M. S. R. Niranjan; Ojha, Shakuntala; Prakash, M.

doi:10.1007/s42452-020-03502-7

Cited by 8 publications

(6 citation statements)

References 68 publications

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“…[18,19] One of the disadvantages of natural fibers is that their mechanical qualities, such as tensile and flexural strength, are substantially lower than synthetic fibers and have poor moisture absorption resistance. [20] As a result, using natural fiber alone in a polymer matrix is insufficient to meet all of the technical requirements of a fiber reinforced composite. Natural fiber can be blended with a synthetic fiber in the same matrix material to take advantage of the qualities of both fibers to reduce traditional filler and boost the utilization of natural biowaste in the field of materials.…”

Section: Introductionmentioning

confidence: 99%

A comparison of the effect of nano clay addition on microstructures and mechanical properties of epoxy and polyester reinforced glass/sisal hybrid polymer composites

et al. 2022

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In the present study, a comparison has been made between the mechanical properties of polyester and epoxy matrices reinforced Sisal/S‐Glass, and also the effects of nano clay addition have been studied. For fabrication of composites, Glass/Sisal fibers are reinforced with Polyester and Epoxy with various wt% of nano clay. These composites are fabricated through the hand lay‐up technique. Various wt% of nano clay are 2, 4, 6 wt%, and the stacking sequence of fibers are GSSG (S‐Glass/Sisal/Sisal/S‐Glass). The variations of strengths among the polyester/epoxy are also studied and examined. In Epoxy/GSSG reinforced NC composites compared with 0–4 wt% tensile strength increased by 18%. Polyester/GSSG reinforced NC composites tensile strength increased by 16%, and in Epoxy/GSSG reinforced NC composites compared with 0–2 wt% flexural strength increased by 16%. Polyester/GSSG reinforced NC composites tensile strength increased by 24%. The microstructural analysis has been carried out on the fractured samples, which indicated brittle failure of the fiber and fiber pull‐outs. This conclusion confirms the proposed novel laminates fitness for possible usage in structural applications in the aerospace sector.

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Section: Introductionmentioning

confidence: 99%

A comparison of the effect of nano clay addition on microstructures and mechanical properties of epoxy and polyester reinforced glass/sisal hybrid polymer composites

et al. 2022

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“…Kevlar fibers possess better properties like good impact resistance, low density and good toughness. These fibers are hydrophobic, the moisture absorption content is low [4][5][6].…”

Section: Introductionmentioning

confidence: 99%

“…A composite with at least two different types of fibres reinforced in a single matrix is referred to as a "hybrid polymer composite", which provide a synergistic effect such as enhanced mechanical properties. Hybrid composites offered, strength and stiffness, reduced weight/cost, better fatigue resistance, balanced thermal stability, fracture toughness, impact resistance compared to mono fiber composite [6,7]. Hybrid Polymer nanocomposites have received very much attention from nanoscience academics and industries due to their great physical, mechanical, and tribological properties.…”

Section: Introductionmentioning

confidence: 99%

“…Certain factors like aging in the type of liquid, aging time, type of polymer and reinforcement, curing rate of resin, filler content and diffusion coefficients are very much influence for the degradation of the polymer composite. The hybridization of polymer composites provides good resistance to the degradation of the properties as compared to normal composites [6]. The flexural properties of hybrid polymer nanocomposite having five layer of carbon and four layers of Kevlar with addition of nanosilica with 0.5 wt.% to epoxy matrix enhance the flexural properties as compared to unfilled nanosilica [20].…”

Section: Introductionmentioning

confidence: 99%

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Investigation of Dynamic Mechanical Behavior of Nanosilica Filled Carbon-Kevlar-Epoxy Polymer Hybrid Nanocomposite

Gopalakrishnamurthy¹,

Sandur²

2022

ACSM

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Reinforcement of epoxy-carbon-Kevlar fabric composite with the addition of nanosilica has resulted in the evolution of new hybrid polymer nanocomposite, which results in the improved mechanical properties of polymer hybrid nanocomposite. The current investigation concentrated on the dynamic mechanical behavior of unfilled and nanosilica filled carbon-Kevlar-epoxy polymer composite with five and four layers of carbon and Kevlar woven fibers respectively with epoxy matrix (5C4K). Nanosilica was mixed into the epoxy at different weight percentages (wt.%) of 0, 0.5, 1.0, and 1.5. The laminates were fabricated using the vacuum-assisted resin infusion moulding (VARIM) technique. The dynamic mechanical properties, storage modulus, loss modulus, damping factor (tan delta), and glass transition temperature was investigated using a dynamic-mechanical analyzer at temperature ranging from 25 to 165 degrees Celsius. The test specimens were prepared in accordance with the ASTM D4065 standard to investigate dynamic mechanical analysis (DMA) of the hybrid polymer nanocomposite. The results of the tested specimens for dynamic mechanical behaviors of carbon-Kevlar-epoxy hybrid nanocomposites are very much influenced by the presence of nanosilica. The storage modulus, loss modulus for nanosilica added hybrid polymer composites were more than the unfilled ones and the damping factor (tan delta) was observed more in an unfilled composite.

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“…Biowaste has found umpteen applications where high strength to weight ratio is desired in combination with erosion wear resistance, specifically in marine industries, though such materials cannot be used as a direct high strength application in automotive, aerospace, and civil applications; only recently the biomedical industry has also received significant attention where strength enhancement is not in the scale of the aforementioned industrial applications. [7][8][9][10][11][12] Hence, there is a need for developing a new class of materials with desired strength which is equivalently achieved using biowaste-processed materials. Some commercially available biowaste materials are jute, 13,14 wood apple, 15 sisal, 16 rice husk, 17 banana, and pineapple.…”

Section: Introductionmentioning

confidence: 99%

Experimental evaluation and comparison of silica/biocarbon particulate-epoxy composites for high-strength applications

Ojha

Pranay

Raghavendra

et al. 2021

Proceedings of the Institution of Mechanical Engineers, Part L:

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Biowaste utilization and management are of primary concern in the current scenario for a sustainable environment. One way to enable this is to replace commercial fillers with composite materials. In the present study, the fillers, that is, silica and biocarbon are extracted from rice husk and processed further as biofillers for processing composites. With inherent processing challenges involved in biofiller-based composites, this study investigated and compared the influence of dispersed silica and biocarbon particles independently on the mechanical and tribological properties of epoxy composites. The composites were fabricated by a hand lay-up process. The composites were fabricated with three different filler loadings each of silica and biocarbon separately (2, 4 and 6 wt%). The mechanical characterization results illustrate that tensile, flexural, compression, and erosion wear showed superior properties compared to neat epoxy. It is also evident that there was an enhancement of 19% in compressive strength in composites compared to neat epoxy at 2 wt% silica and biocarbon filler composites. The tensile strength increased by 2.6 times when compared to neat epoxy at 2 wt% silica filler addition. Alongside, erosion results confirm that the properties of pure epoxy change from semi-brittle to ductile due to the addition of silica and biocarbon fillers. This semi-brittle to ductile nature is important for marine applications as propellers are subject to extreme cold and warm temperatures with very little transition time, leading to ductile to brittle failure. Finally, it can be inferred that silica extracted from rice husk has versatile applications when compared to the carbon extract.

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A review on the degradation of properties under the influence of liquid medium of hybrid polymer composites

Cited by 8 publications

References 68 publications

A comparison of the effect of nano clay addition on microstructures and mechanical properties of epoxy and polyester reinforced glass/sisal hybrid polymer composites

A comparison of the effect of nano clay addition on microstructures and mechanical properties of epoxy and polyester reinforced glass/sisal hybrid polymer composites

Investigation of Dynamic Mechanical Behavior of Nanosilica Filled Carbon-Kevlar-Epoxy Polymer Hybrid Nanocomposite

Experimental evaluation and comparison of silica/biocarbon particulate-epoxy composites for high-strength applications

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