Wettability, absorption and degradation behavior of microwave-assisted compression molded kenaf/HDPE composite tank under various environments

Singh, Manoj Kumar; Zafar, Sunny

doi:10.1016/j.polymdegradstab.2021.109500

Cited by 24 publications

(6 citation statements)

References 37 publications

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“…Seawater was produced in the laboratory following ASTM D1141-98 Standard practice for the preparation of substitute ocean water [26], [27]. Seawater is slightly alkaline, with pH values between 8.0 and 8.5 [28]; hence the pH of the prepared seawater was maintained between 8.3 to 8.5.…”

Section: Seawater Treatment and Mass Gain Determinationmentioning

confidence: 99%

Influence of Seawater Absorption on the Hardness of Glass Fiber/Polyester Composite

Bhat

Mohan

Sharma

et al. 2022

JCMM

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In the marine industry, glass fibers are commonly used to reinforce polyesters for ship hulls, submarine components, and other marine structures. Isophthalic polyesters are a feasible alternative due to their superior mechanical qualities and added end-of-life scenarios compared to orthophthalic polyesters. However, like other fiber composite systems, glass fiber reinforced polymer (GFRP) composites are also water sensitive. Here, GFRP composites of three different thicknesses are aged under three different immersion periods in seawater (20, 40 and 60 days). All samples are reconditioned and evaluated for hardness following aging. Significant emphasis is placed on the presence of calcium carbonate, over which increases in moisture content irrevocably reduce the composite’s hardness. Compared to untreated material, the hardness of 6, 8, and 10 mm composites decreased by 25.64, 10.92, and 4.63% after the 60-day aging period. This drop is mostly the result of microstructure evolution manifesting as an increase in porosity. Consequently, fiber deterioration, fiber cracks, and degradation of polymer-fiber bonding emerge in the composite, decreasing hardness.

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Section: Seawater Treatment and Mass Gain Determinationmentioning

confidence: 99%

Influence of Seawater Absorption on the Hardness of Glass Fiber/Polyester Composite

Bhat

Mohan

Sharma

et al. 2022

JCMM

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“…The details of the MACM setup can be found elsewhere. [47][48][49] Figure 1. Flowchart for wear prediction methodology.…”

Section: Finite Element Modellingmentioning

confidence: 99%

Multi-scale modelling for adhesive wear in tribo-pairs of nano-hydroxyapatite reinforced UHMWPE bio-composite and Co-Cr alloy

Verma

Pathak

Zafar

2021

Proceedings of the Institution of Mechanical Engineers, Part L:

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The ultra-high molecular weight polyethylene (UHMWPE) is a popular biomaterial. Pre-clinical evaluation of UHMWPE in terms of wear resistance is extremely important to avoid the effect of implant loosening after implantation. This work proposed an efficient and accurate computational modelling approach to predict elasto-plastic properties at meso-scale, and further integrated at macro-scale to predict adhesive wear in dry tribo-pairs condition. The representative volume element (RVE) based finite element technique was used to predict elastoplastic behaviour of nano-hydroxyapatite (nHA) reinforced UHMWPE composite. The predicted values were validated experimentally and applied as a material property of pin during a numerical investigation of adhesive wear by a macro-scale modelling approach. The CoCr alloy was taken as the counter disc material. The integration of Archard's wear model and user-subroutine was done for numerical prediction of wear. The numerically obtained wear rate and friction coefficient results were validated experimentally by a pin on the disc wear setup under dry conditions. The fabrication of the specimen for validation was done by microwave-assisted compression moulding (MACM). The microstructural investigation of worn surfaces was done by scanning electron microscopy (SEM) to understand the mechanism of adhesive wear. The surface mapping of worn surfaces was done using an optical profilometer to observe the surface roughness after adhesive wear. Biocompatibility of the composite material was confirmed by In-vitro direct contact cytotoxicity test

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“…The demand for green, energy-efficient, sustainable, and eco-friendly materials has reawakened interest in researchers and manufacturers regarding natural fibre composite (NFCs). Natural fibres such as sisal, jute, bamboo, flax, and kenaf have been studied by many researchers over the past few years [1][2][3][4][5]. Furthermore, due to its sustainability and low cost, natural fibre composite has tremendously gained popularity.…”

Section: Introductionmentioning

confidence: 99%

The Capabilities of Honeycomb Core Structures Made of Kenaf/Polylactic Acid Composite under Compression Loading

et al. 2023

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This study investigated the capability of honeycomb core structures made of kenaf fibre-reinforced polylactic acid (PLA) composite. Two types of kenaf fibre were used in this study, these being woven kenaf and non-woven cotton/kenaf. Initially, the corrugated shape panel was manufactured using a hot moulding compression method. The panel was then cut into corrugated strips, bonded together using epoxy resin to form the honeycomb core structure, and balsa wood used as their skins. The effects of core height and crosshead displacement rate were investigated. The honeycomb core consisted of 20 mm, 30 mm and 40 mm core heights, and the crosshead displacement rate ranged from 2 mm/min to 500 min/min. Of all the samples, core structure with a height of 20 mm tested at 500 mm/min offered the highest value of compressive strength and specific energy absorption, which were 6.23 MPa and 12.36 kJ/kg, respectively. It was also discovered that the core height and loading rate have significant effects on the mechanical properties of the kenaf/PLA honeycomb core structure.

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Wettability, absorption and degradation behavior of microwave-assisted compression molded kenaf/HDPE composite tank under various environments

Cited by 24 publications

References 37 publications

Influence of Seawater Absorption on the Hardness of Glass Fiber/Polyester Composite

Influence of Seawater Absorption on the Hardness of Glass Fiber/Polyester Composite

Multi-scale modelling for adhesive wear in tribo-pairs of nano-hydroxyapatite reinforced UHMWPE bio-composite and Co-Cr alloy

The Capabilities of Honeycomb Core Structures Made of Kenaf/Polylactic Acid Composite under Compression Loading

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