The effect of treatment on kenaf fiber using green approach and their reinforced epoxy composites

Kotharangannagari, Venkata Krishna; Kanny, Krishnan

doi:10.1016/j.compositesb.2016.08.010

Cited by 106 publications

(51 citation statements)

References 31 publications

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“…ABS–ZnFe 2 O 4 composites shows less damping factor than control ABS matrix at the same temperature due to the incorporation of filler restrict the movement of the polymer chains. Finding by Krishna et al, the tan δ rely mostly on the interfacial adhesion between the matrix and filler such that a weak adhesion would lead to higher tan δ values while good adhesion will lead to lower tan δ values caused by reduction in the polymer chain mobility . The tan delta curve in this graph also shows lower peak at the ABS zinc ferrite composites compared to control ABS due to greater restriction in the movement of the polymer molecules caused by the presence of stiff filler.…”

Section: Resultsmentioning

confidence: 54%

Effect of different filler content of ABS–zinc ferrite composites on mechanical, electrical and thermal conductivity by using 3D printing

Aqzna

Yeoh

Idris

et al. 2018

Vinyl Additive Technology

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In this paper, the composites were prepared to improve the mechanical, electrical and thermal properties because 3D printed objects tend to have low structural integrity. The printing process starts by laying down successive layers of molten ABS filament and the filler will disperse onto the layer until the whole specimen was completed. The aim of this study is to investigate the influence of fillers content on the mechanical, electrical and thermal properties of ABS–zinc ferrite composites. The mechanical strength of the 3D printed products is usually worse compared with injection molding due to their fragile structure and weakness points between the layers. The additions of filler content at 14 wt% was found to provide a significant improvement in density and tensile properties which gives the highest value of improvement up to 8% and 70% accordingly compared to the pure ABS. Hardness testing result also showed a 117% increase over the unreinforced ABS. The thermal and electrical conductivity increased by 22% and 186% respectively when 14 wt% filler was added to the samples. All the results showed an improvement in terms of mechanical, electrical and thermal properties compared with control ABS specimen due to the presence of zinc ferrite filler. J. VINYL ADDIT. TECHNOL., 24:E217–E229, 2018. © 2018 Society of Plastics Engineers

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Section: Resultsmentioning

confidence: 54%

Effect of different filler content of ABS–zinc ferrite composites on mechanical, electrical and thermal conductivity by using 3D printing

Aqzna

Yeoh

Idris

et al. 2018

Vinyl Additive Technology

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“…The degradation curves of the composites exhibited small differences in the thermal stabilities of the samples obtained using various treatments (Figure c–f). From Table , it can be clearly seen that the weight loss value of the composites containing untreated AKShs is close to those of the other composites, and modification was not very effective for improving their thermal stability . The residual weight percentage of the neat PhNE and PhNE‐AKShs composites at 800°C were approximately 18% and 28–34%, respectively.…”

Section: Resultsmentioning

confidence: 99%

Chemical modification of apricot kernel shell waste and its effect on phenolic novolac epoxy composites

Kocaman

2020

J of Applied Polymer Sci

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Apricot kernel is one of the most abundant types of agro-waste in the eastern Anatolia regions of Turkey. In this study, apricot kernel shells (AKShs) were chemically modified using levulinic acid (LA) for the first time, and their potential for developing biobased composites was evaluated. Phenol novolac epoxy resin was used as matrix owing to its high thermal and superior adhesion properties. Shell treatments to improve interfacial bonding were carried out using alkali, acetic acid, and LA. These treatments were aimed at improving the mechanical properties, wettability, and bonding of the composites.Moreover, these treatments could prevent the deterioration of the fiber/matrix interface (hydrophilic and hydrophobic effect) and mitigate damage to the fiber during production, which is one of the main reasons for the reduced strength of the composites. The thermal characteristics, crystallinity index, chemical composition, and surface morphology of the untreated and chemically modified AKShs and composites were studied by thermogravimetric analysis, differential scanning calorimetry, X-ray diffraction, Fourier transform infrared spectroscopy, and scanning electron microscopy, respectively. In addition, the composites were analyzed in detail using mechanical tests and contact angle measurements. The chemical treatment using LA resulted in composites with superior mechanical behavior.

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“…Regarding the effect of fibers' chemical treatments on the tribology of NFRCs based on kenaf, to improve their (but also of many types of NFRCs) mechanical properties various chemical methods like silane treatment, acetylation, grafting, etc., should be used [69]. Chemical modification of kenaf fibers was investigated in [59] using NaOH: at different concentrations at room temperature for 3 h the kenaf fibers were soaked into 3%, 6%, and 9% NaOH.…”

Section: Kenaf Fiber Nfrcsmentioning

confidence: 99%

Tribology of Natural Fibers Composite Materials: An Overview

2020

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In the framework of green materials, in recent years, natural fiber composites attracted great attention of academia and industry. Their mechanical and tribological characteristics, such as high strength, elasticity, friction, and wear resistance, make them suitable for a wide range of industrial applications in which issues regarding a large amount of disposal are to be considered since their environmental friendliness gives them an advantage over conventional synthetic materials. Based on the recent and relevant investigations found in the scientific literature, an overview focused on the tribological characteristics of composite materials reinforced with different types of natural fibers is presented. The aim is to introduce the reader to the issues, exploring the actual knowledge of the friction and wear characteristics of the composites under the influence of different operating parameters, as well as the chemical treatment of fibers. The main experimental tribological techniques and the main used apparatus are also discussed, with the aim of highlighting the most appropriate future research directions to achieve a complete framework on the tribological behavior of many possible natural fiber composite materials.

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The effect of treatment on kenaf fiber using green approach and their reinforced epoxy composites

Cited by 106 publications

References 31 publications

Effect of different filler content of ABS–zinc ferrite composites on mechanical, electrical and thermal conductivity by using 3D printing

Effect of different filler content of ABS–zinc ferrite composites on mechanical, electrical and thermal conductivity by using 3D printing

Chemical modification of apricot kernel shell waste and its effect on phenolic novolac epoxy composites

Tribology of Natural Fibers Composite Materials: An Overview

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