Experimental investigation and multi-objective optimization of multiple mechanical characteristics for chemically treated kenaf fibre reinforced epoxy composite using grey fuzzy logic

2021 ◽  
pp. 146442072110429
Author(s):  
Swati Gangwar ◽  
Neelesh Kumar Dubey ◽  
Vimal Kumar Pathak
Keyword(s):  
Mechanical Properties ◽  
Mechanical Characteristics ◽  
Epoxy Composite ◽  
Resin Composite ◽  
Fuzzy Optimization ◽  
Optimization Approach ◽  
Kenaf Fibre ◽  
Epoxy Resin Composite ◽  
Chemically Treated ◽  
Input Variables

In the present work, chemically treated kenaf fibre (10, 20 and 30 wt. %) reinforced epoxy resin composite formulations were fabricated using hand lay-up technique. The prepared composites were mechanically characterized using Taguchi L27 experimental design to examine the influence of varying kenaf fibre wt. %, NaOH concentration % for chemical treatment, and fibre immersion duration. The grey-fuzzy optimization approach was utilized for optimizing prepared formulations mechanical properties such as tensile strength, impact strength and flexural strength. Further, analysis of variance (ANOVA) tests and response graphs were utilized for delivering model significance and determining the percentage contribution of input variables. The NaOH concentration % was found to be most significant parameter followed by kenaf wt. % in providing best mechanical properties of chemically treated kenaf fibre reinforced epoxy composites.

Development and Characterization of Fly Ash Nanoparticles Reinforced Epoxy Resin Composite for Acoustic Applications

2020 ◽  
Author(s):  
Kingsley Ukoba ◽  
Samuel Popoola ◽  
Olatunde Israel ◽  
Patrick Imoisili ◽  
Tien-Chien Jen
Keyword(s):  
Mechanical Properties ◽  
Fly Ash ◽  
Epoxy Resin ◽  
Health Knowledge ◽  
Resin Composite ◽  
High Surface ◽  
Fluorescence Analysis ◽  
Noise Pollution ◽  
Sieve Analysis ◽  
Epoxy Resin Composite

Abstract Noise is an unwanted sound; requires reduction and control through the use of absorptive materials. This is imperative due to the adverse effect noise poses to human health, knowledge dissemination, and tranquility which is increasing daily due to industrialization and heightened allied activities. The use of natural and synthetic reinforced composites in noise pollution control is an emerging area of research. This study aims to develop and characterize fly ash nanoparticles reinforced epoxy resin composite for acoustic applications. Samples were prepared with fly ash nanoparticles reinforcement at 5%, 10%, 15%, 20%, and 25% and investigation of noise reduction coefficient (NRC), porosity and mechanical properties (hardness, impact, flexural strength) of samples were done. Cenospheres were obtained when fly ash particles were characterized separately with the aid of sieve analysis and x-ray fluorescence analysis. The cenospheres are hollow spherical and lightweight, inertfiller material. Correlation between porosity of the samples and their sound absorption properties was observed and showed that as porosity increased, the NRC values increased and as the porosity decreased the NRC values decreased. It was also observed that heat of polymerization, fly ash nanoparticles structure and air bubbles during sample preparation (mixing) influenced the porosity values which in turn influenced the NRC values of the composite. There was also a steady decrease in mechanical properties, as reinforcements were added (5%, 10%, 15%, 20%, and 25%), this was attributed to the high surface areas and shape of reinforcement added.

scholarly journals Influence of Mwcnt’s/Zinc Oxide Nano Particles/Epoxy Resin Composite Coating on Mild Steel to Enhance Anticorrosion and Mechanical Properties

2020 ◽  
Vol 9 (6) ◽  
pp. 1016-1024
Keyword(s):  
Mechanical Properties ◽  
Zinc Oxide ◽  
Mild Steel ◽  
Epoxy Resin ◽  
Resin Composite ◽  
Nano Particles ◽  
Nano Composite ◽  
Spray Method ◽  
Major Disadvantage ◽  
Epoxy Resin Composite

The motive of this research is to develop a new hybrid Nano composite on the surface of mild steel to eradicate the rate of corrosion that takes place on the surface of the mild steel and to enhance mechanical properties. For this, a hybrid Nano composite of Multi-Walled Carbon Nano Tube’s (MWCNT’s), Zinc Oxide (ZnO) Nano particles and Epoxy resin has been used to overcome the major disadvantage of mild steel which is corrosion. The mechanical property of mild steel is also increased. Ultra-sonication method is adopted for better dispersion of ZnO Nano particles and MWCNT’s. In this study, Ethanol is used for better dispersion. After applying the coating on the surface of newly developed Nano composite by using pneumatic gun spray method is used. FESEM was conducted to study the surface morphology of corroded surface of mild steel. The rate of anticorrosion and mechanical properties get improved by the application MWCNT’s/ZO Nano particles/Epoxy resin.

Study of the Impact Viscosity of the Epoxy Composite Modified Technical Carbon

2020 ◽  
Vol 992 ◽  
pp. 285-289
Author(s):  
S.V. Vasiliev ◽  
Y.Y. Fedorov ◽  
A.V. Savvina
Keyword(s):  
Impact Strength ◽  
Carbon Black ◽  
Epoxy Resin ◽  
Epoxy Composite ◽  
Resin Composite ◽  
Filler Concentration ◽  
Technical Carbon ◽  
Epoxy Resin Composite ◽  
The Impact ◽  
Impact Viscosity

This article discusses effect of filler concentration on impact strength of an epoxy resin composite. The optimal ratio of resin and hardener is defined. Research of the effect of the concentration of the filler - carbon black P505 on the impact strength of a composite material based on epoxy resin ED-20 is made. According to the results of the study, it is shown that with an increase of concentration of the filler from P505 carbon black, the toughness decreases. Fractographic studies of the fracture surfaces of composites were also carried out, which indicate that the introduction of a filler leads to a decrease in the surface energy of destruction. Thus, studies of epoxy composite modified with technical carbon grade P505 showed a decrease in impact strength up to 4 times, depending on the increase in the mass fraction of the filler.

A study of the mechanical properties of pre-oxidized fiber felt/epoxy resin composite material

2018 ◽  
Vol 109 (10) ◽  
pp. 1335-1340
Author(s):  
Chuanbing Ge ◽  
Yuanjun Liu ◽  
Xiaoming Qian ◽  
Xiaoming Zhao
Keyword(s):  
Mechanical Properties ◽  
Composite Material ◽  
Epoxy Resin ◽  
Resin Composite ◽  
Epoxy Resin Composite

Development and characterization of epoxy resin composite reinforced with bamboo fiber and bagasse as filler

2021 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Nachiappan Sukumar ◽  
Mekonnen Bayeleyegn ◽  
Sampath Aruna
Keyword(s):  
Mechanical Properties ◽  
Water Absorption ◽  
Epoxy Resin ◽  
Resin Composite ◽  
Bamboo Fiber ◽  
Resin Matrix ◽  
Original Research ◽  
Content Type ◽  
Epoxy Resin Composite ◽  
Bagasse Fiber

Purpose Recently, composites have concerned considerable importance as a potential operational material. Lots of work have been carried out to enhance the mechanical properties of composites. The main aim of this paper is to develop bamboo mat as reinforcing material with bagasse fiber as filler using epoxy resin matrix composite. Design/methodology/approach In this research, the effect of fiber surface treatments on mechanical properties of epoxy resin composite with bagasse as filler has been developed and investigated. The extracted bamboo fibers were treated with NaOH to improve the surface roughness fiber. Using treated and untreated bamboo fiber handwoven mat has been produced to be used as reinforcement and bagasse fiber has been converted into powder to be filled as filler. Composite material is fabricated using bamboo fiber and bagasse fiber as filler with epoxy resin as a matrix using hand layup technique. Findings Then, tensile, flexural and compressive strength and water absorption tests were conducted on sodium hydroxide treated and untreated fiber composites. The test results comparing with and without alkali treated composites show that there was significant change in their strength and water absorption properties on alkali treated fiber. Originality/value This study is an original research paper.

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