Fabrication and characterization of light weight PVC foam based E-glass reinforced polyester sandwich composites

Ojha, Somanath; Bisaria, Himanshu; Mohanty, Smita; Kanny, Krishnan

doi:10.1177/09544062231161434

Cited by 10 publications

(1 citation statement)

References 26 publications

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“…In recent years, the pursuit of sustainable and environmentally friendly materials has driven significant interest in the development of composite materials utilizing natural fibers [1][2][3]. Among these alternatives, cotton fibers have emerged as a compelling reinforcement due to their abundance, low cost, and desirable mechanical properties [4].…”

Section: Introductionmentioning

confidence: 99%

Evaluation of Performance of Cotton Fiber Reinforced Epoxy Composites

Wankhede,

Dakre,

Bodhankar

et al. 2024

J. Phys.: Conf. Ser.

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This experimental study explored the impact of varying weight proportions (5%, 10%, 15%, and 20%) of cotton fiber reinforcement in epoxy composites on compressive strength, Charpy impact strength, and water absorption characteristics. Concurrently, the interfacial properties were examined using Scanning Electron Microscopy (SEM). The inclusion of 15 wt.% cotton fiber notably enhanced compressive strength, displaying consistent improvement as cotton content increased until reaching 15 wt.%. Beyond this point, further increases yielded diminishing enhancements in compressive properties. EC20 demonstrated superior impact strength and energy absorption. Increased cotton concentrations improved impact properties due to the fibrous nature of cotton, enhancing energy dissipation and crack resistance within the epoxy matrix. Higher cotton content correlated with increased water absorption, aligning with cotton’s hydrophilic properties. The EC20 composite exhibited heightened water uptake and permeability, indicating the influence of elevated cotton concentrations. SEM analysis of fracture surfaces identified crucial features such as fiber pull-out, matrix cracking, interfacial debonding, and surface irregularities. These findings contribute significantly to understanding the inherent failure mechanisms in these composite materials.

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Section: Introductionmentioning

confidence: 99%

Evaluation of Performance of Cotton Fiber Reinforced Epoxy Composites

Wankhede,

Dakre,

Bodhankar

et al. 2024

J. Phys.: Conf. Ser.

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Experimental investigation on mechanical performance of PVC foam‐based E‐glass isophthalic polyester composites

Ojha,

Bisaria,

Mohanty

et al. 2023

Polymer Composites

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The present research paper investigates the chemical, thermal, mechanical, thermo‐mechanical properties, and fractography of sandwich composites made from E‐glass‐reinforced isophthalic polyester with Poly Vinyl Chloride (PVC) foam as a core by hand. These composites are commonly used in marine applications and manufactured by hand lay‐up method. A comparison is made between the properties of the PVC foam polyester sandwich composite with E‐glass layers on both sides (SC1) and the PVC foam isophthalic polyester sandwich composite with double layers of E‐glass on both sides (SC2) in relation to single‐layer E‐glass. Fourier transform infrared (FTIR) spectroscopy is employed to analyze the chemical composition of the composites. Various mechanical properties, including impact strength, flexural strength (FS), fracture toughness, and tensile strength (TS), are evaluated for the fabricated composites. Thermo‐mechanical and thermal properties are examined using dynamic mechanical analysis and thermogravimetric analysis (TGA), respectively. The chemical analysis identifies the unsaturation sites of (CH2)n, carbonyl group CO of the ester group, and the stretching of CH and CH3. The mechanical properties of SC2 composites are observed to be superior to those of SC1 composites. TGA revealed that both SC1 and SC2 composites showcased comparable temperature‐dependent weight loss patterns. Nonetheless, the SC2 composite displayed elevated glass transition temperature values and superior damping properties, as indicated by its higher Tanδ values. Examination of the fractured surfaces using a scanning electron microscopy (SEM) micrograph reveals a honeycomb structure, matrix cracking, and fiber pullout.Highlights Examination of the chemical, thermal, mechanical, and thermo‐mechanical attributes of sandwich composites made from E‐glass‐reinforced isophthalic polyester with PVC foam as the core. Evaluation of the impact of E‐glass layering on the thickness of the composite skin. Analysis of interfacial properties through FTIR techniques. Assessment of mechanical properties like impact strength, FS, fracture toughness, and TS. Investigation of fracture surfaces using SEM.

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Fractographic analysis of fiber‐reinforced polymer laminate composites for marine applications: A comprehensive review

Ojha,

Bisaria,

Mohanty

et al. 2024

Polymer Composites

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In the past decade, polymer‐based glass fiber‐reinforced laminate composites have gained significant popularity in various mass transit applications, including marine, aircraft, and automotive industries. However, it is crucial to consider the degradation and potential failure of these materials, especially in mass transit networks. To address this concern, fractographic analysis has emerged as a valuable approach for investigating fracture surfaces, extracting vital information, and facilitating the development of new materials. Furthermore, it sheds light on the underlying physical mechanisms that contribute to composite failure. This paper primarily focuses on examining flaws, failure modes, and performing fractography analysis on fiber‐reinforced polymer (FRP) laminate composites subjected to various loading conditions such as tension, compression, flexure, impact, shear, and fracture. Fractography, as an indispensable method, plays a pivotal role in the comprehensive development of composite structures and has become a reliable tool for composite engineers. The outcomes of this study are expected to serve as a foundation for identifying areas that require further investigation in terms of fracture analysis and failure modes specific to FRP composite materials, particularly those used in marine applications.Highlights Introduction to FRP laminate composites in marine structures. Concise analysis of failure modes in FRP laminate composites. SEM fractography review of FRP laminate composites under varied loading conditions. Comprehensive study on tensile, flexural, impact, compression, shear, and fracture toughness failure modes. Summarization of identified defects in FRP composites.

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Fabrication and characterization of light weight PVC foam based E-glass reinforced polyester sandwich composites

Cited by 10 publications

References 26 publications

Evaluation of Performance of Cotton Fiber Reinforced Epoxy Composites

Evaluation of Performance of Cotton Fiber Reinforced Epoxy Composites

Experimental investigation on mechanical performance of PVC foam‐based E‐glass isophthalic polyester composites

Fractographic analysis of fiber‐reinforced polymer laminate composites for marine applications: A comprehensive review

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