Experimental and Numerical Study of the Critical Length of Short Kenaf Fiber Reinforced Polypropylene Composites

Nematollahi, Mohammad Reza; Karevan, Mehdi; Fallah, Marzieh; Farzin, Mahmoud

doi:10.1007/s12221-020-9600-x

Cited by 20 publications

(4 citation statements)

References 25 publications

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“…Several papers have dealt with PP and kenaf fiber to make the composite. Most recently, Nematollahi et al reported that composites with neat PP and 20 wt% kenaf fiber were fabricated by using extrusion injection molding and carried out experimental and numerical studies of the critical fiber length to affect the load transfer efficiency and stiffening of resulting composites [16]. They also studied that morphology, thermal, and mechanical properties of extruded injection molded kenaf fiber reinforced PP composites [17].…”

Section: Introductionmentioning

confidence: 99%

Effects of Waste Expanded Polypropylene as Recycled Matrix on the Flexural, Impact, and Heat Deflection Temperature Properties of Kenaf Fiber/Polypropylene Composites

Kim

Cho

2020

Polymers

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Waste Expanded polypropylene (EPP) was utilized as recycled matrix for kenaf fiber-reinforced polypropylene (PP) composites produced using chopped kenaf fibers and crushed EPP waste. The flexural properties, impact strength, and heat deflection temperature (HDT) of kenaf fiber/PP composites were highly enhanced by using waste EPP, compared to those by using virgin PP. The flexural modulus and strength of the composites with waste EPP were 98% and 55% higher than those with virgin PP at the same kenaf contents, respectively. The Izod impact strength and HDT were 31% and 12% higher with waste EPP than with virgin PP, respectively. The present study indicates that waste EPP would be feasible as recycled matrix for replacing conventional PP matrix in natural fiber composites.

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Section: Introductionmentioning

confidence: 99%

Effects of Waste Expanded Polypropylene as Recycled Matrix on the Flexural, Impact, and Heat Deflection Temperature Properties of Kenaf Fiber/Polypropylene Composites

Kim

Cho

2020

Polymers

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“…Scanning electron microscopy and tensile testing were performed, and the results showed the full interconnection load. The kenaf fibers' length must be greater than the permissible length of 2.4 mm [44]. Therefore, Table 2 shows the same mechanical properties of the plant oil resin and natural fibre composite after testing .…”

Section: Mechanical Properties Tensile Testmentioning

confidence: 99%

The Mechanical Properties of the Lower Limb Socket Material Using Natural Fibers: A Review

Mechi

Al-Waily

Al-Khatat

2021

MSF

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In general, the lower prosthesis consists of socket, leg, ankle, and foot. The socket is the crucial part for connecting the remaining part of the limb and the prosthesis, as it is essential to distribute the load to the amputation patient to provide comfort and add to the proper appearance of the amputation patient. A research that was included methods of manufacturing it, choosing the composite materials necessary for the design, higher durability, lighter weight, and less cost. Previous research used polymer composites reinforced with fibers as glass fibers, carbon fiber, and Kevlar. Other researchers have studied natural fibers' use as reinforcement fiber by mixing resin materials or adding nanomaterials to modify the mechanical properties and reduce costs. After calculating performing the required mechanical tests such as tensile, fatigue, and impact testing, the required properties of the composite material are found, where the prosthesis socket is manufactured below the knee with the application of different loads of the socket. A review of socket models used in developing countries was performed with regard to design, modeling, and finite element analysis (FEA). This review aims to study the material's behavior and mechanical properties by using natural fibers for manufacturing prosthetic sockets. The review discusses the socket manufacture methods proposed to develop the socket industry based on natural fibers to reduce the hot and humid environment using Kenaf and other natural fibers.

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“…The raw materials were blended in a Dr. Collins GmbH twin-screw extruder and molded using a HAIXING IM machine. It was investigated that, to obtain the complete interfacial load transfer, the length of kenaf fibers needs to be greater than the critical length being ~2.4 mm provided that perfect kenaf/PP interfacial interaction exists (Nematollahi et al, 2020). In the case of kenaf fiber-based nano-biocomposites, the effect of chemical modification of the fiber has been studied by Idumah et al (Idumah et al, 2019).…”

Section: Kenaf Fiber Basedmentioning

confidence: 99%

Injection-molded natural fiber-reinforced polymer composites–a review

Rabbi

Islam

2021

Int J Mech Mater Eng

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For the last couple of decades, researchers have been trying to explore eco-friendly materials which would significantly reduce the dependency on synthetic fibers and their composites. Natural fiber-based composites possess several excellent properties. They are biodegradable, non-abrasive, low cost, and lower density, which led to the growing interest in using these materials in industrial applications. However, the properties of composite materials depend on the chemical treatment of the fiber, matrix combination, and fabrication process. This study gives a bibliographic review on bio-composites specially fabricated by the injection-molding method. Technical information of injection-molded natural fiber reinforcement-based composites, especially their type and compounding process prior to molding, are discussed. A wide variety of injection-molding machines was used by the researchers for the composite manufacturing. Injection-molded composites contain natural fiber, including hemp, jute, sisal, flax, abaca, rice husk, kenaf, bamboo, and some miscellaneous kinds of fibers, are considered in this study.

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Experimental and Numerical Study of the Critical Length of Short Kenaf Fiber Reinforced Polypropylene Composites

Cited by 20 publications

References 25 publications

Effects of Waste Expanded Polypropylene as Recycled Matrix on the Flexural, Impact, and Heat Deflection Temperature Properties of Kenaf Fiber/Polypropylene Composites

Effects of Waste Expanded Polypropylene as Recycled Matrix on the Flexural, Impact, and Heat Deflection Temperature Properties of Kenaf Fiber/Polypropylene Composites

The Mechanical Properties of the Lower Limb Socket Material Using Natural Fibers: A Review

Injection-molded natural fiber-reinforced polymer composites–a review

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