Additives used in natural fibre reinforced polymer composites-a review

Kamath, Sakshi Shantharam; Chandrappa, Ravi Kumar

doi:10.1016/j.matpr.2021.08.331

Cited by 17 publications

(8 citation statements)

References 51 publications

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“…The epoxy LY556 resin (Kamath and Chandrappa, 2022) with hardener 951 is considered in this work. It is blended completely in a beaker and then mixed 10:1 ratio thoroughly (Nayak et al, 2022) using a magnetic stirrer (de Kergariou et al, 2022) till a uniform mixture is obtained.…”

Section: Fabrication Processmentioning

confidence: 99%

Experimental Study on Mechanical Behaviour of Arhar-Reinforced Composites using GRA with PCA

Manubolu,

Vanimireddy

2023

IJERR

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The fiber composite plays a vital role in various applications in the current scenario. Natural fibers provide the desired advantages over synthetic fibers. Fiber composites deliver the exploration of durable, degradable, and lightweight materials. In several industrial sectors, transportation of materials from one place to another place is required. Materials like thermocoal boxes and iron boxes are inefficient in strength, weight, and cost. In order to overcome these, natural fiber-based composites, which give both strength and durability with low weight and cost, are chosen. This work explains the sample preparation using Arhar powder with an addition of reinforcements using the hand lay-up method by obeying the ASTM standards. To analyze the performance of the sample specimen, properties evaluated like Compression, Flexural, and other tests were conducted. GRA (Grey-Relational Analysis) with PCA (Principal-Component Analysis) was employed to carry out the most significant parameters, the most significant factor, and the weights of optimal parameters. Based on the output responses, it is experiential that the most effective parameter and best combination factor at Acrylonitrile butadiene styrene (ABS-4%), Guar Gum (8%), and Carboxy methyl cellulose (CMC-8%) with the values of 83.12 MPa compression strength, 61.70 MPa tensile strength and 0.249 joules of Impact strength.

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Section: Fabrication Processmentioning

confidence: 99%

Experimental Study on Mechanical Behaviour of Arhar-Reinforced Composites using GRA with PCA

Manubolu,

Vanimireddy

2023

IJERR

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“…[2][3][4][5][6] With this purpose, one can see from the literature that lots of natural based-fibers were produced to impart the peculiar features to the polymer composites. 7,8 The bio-based fibers can be produced from the animal or plant sources. Hemp, husk, coir, jute, cotton, kenaf, sisal fibers etc.…”

Section: Introductionmentioning

confidence: 99%

“…2–6 With this purpose, one can see from the literature that lots of natural based-fibers were produced to impart the peculiar features to the polymer composites. 7,8…”

Section: Introductionmentioning

confidence: 99%

Role of hemp fiber addition on thermal stability, heat insulation, air permeability and cellular structural features of rigid polyurethane foam

Soykan

Kaya

2023

Cellular Polymers

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In this current study, rigid polyurethane foams (RPUFs) composites were prepared using different percentage (3, 6, 9 and 12%) of the hemp fibers via one-shut one-step polymerization method. The influences of the hemp fiber addition on the RPUFs were investigated meticulously by means of Fourier-transform infrared spectroscopy (FTIR), thermo gravimetric analysis (TGA), thermal conductivity measurement and scanning electron microscopy (SEM) techniques by evaluating the alternations in the chemical structures of the component, thermal stability, apparent density, insulation performance and cellular topology of the produced samples. The structural analysis revealed that there existed the strong secondary chemical bonds between the functional groups belonging to the components and, depending on that, the improvement in the thermal stability of the foam samples was recorded accompanied by the formation of the better interfacial adhesion. Furthermore, thermal conductivity values of the hemp fiber-loaded RPUFs were observed to increase regularly with the increasing of the content level of the hemp fibers. This was explained by enhancement in the bulk phase conduction level depending of the apparent density rising, reduction in CO2 concentration inside cells as well as the formation of the distorted cellular structures. The obtained air permeability results displayed that the hemp fibers incorporated successfully with RPUF structure, which provides the occurrence of the novel micro barriers and pathways limiting the passage of the air throughout the matrix. The taken scanning electron microscopy images also indicated that the cellular morphology and dimensional stability of the produced foams affected negatively by the hemp fiber addition. At high contents, the wrinkled, non-uniform and irregular cellular structures were observed with ruptured and collapsed walls and struts.

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“…According to Sakshi and Ravi (2021), natural fiber-reinforced composites are potential engineering materials that have formerly been investigated in a wide range of methods to solve the shortcomings of natural fibres when used as reinforcement. According to them, this is accomplished by using certain additives including coupling agents, plasticizers, fillers, and flame retardants during the composite's manufacturing.…”

Section: Introductionmentioning

confidence: 99%

Tensile Strength and Hardness of Polypropylene-Bamboo/Kenaf Hybrid Composite After Optimization of Production Process

Odiakaose,

Hassan,

Raji

2023

OJES

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While in use and when not, engineering materials occasionally exhibit poor characteristics and perform poorly as a result of internal or external factors. Therefore, there is a need to improve the protection of the composites from the various agents and improve their mechanical properties. This study's objective was to assess the impact of bamboo/kenaf hybrid fibres, Maleic Anhydride Grafted Polypropylene (MAHgPP), Hinder Amine Light Stabiliser (HALS), and Calcium Carbonate (CaCO3) additions on tensile strength and hardness at various levels, as well as their interactions on polypropylene (PP) composites. The manufacturing of the composites was accomplished through the compression molding process. The study was conducted using Taguchi orthogonal array L27 with fiber, MAHgPP, HALS, and CaCO3 as input parameters. A robust optimization technique for product and process design (Taguchi method ) was used to optimize the parameter settings for the tensile strength and hardness of the composite. Results showed that the tensile strength of the resultant composite ranged from 37.60 MPa to 53.57 MPa; while the hardness value ranged from 70.32 (Shore A) to 93.03 (Shore A). The optimized composite had a tensile strength of 49.12 MPa and a hardness of 79.85 (Shores A). The factors settings that gave the combined optimum tensile strength and hardness for the bamboo/kenaf fiber are 36.87% fiber, 5% MAHgPP, 1% HALS, and 3% CaCO3. therefore the best tensile strength and hardness performance of the composite was obtained from the optimum setting.

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Additives used in natural fibre reinforced polymer composites-a review

Cited by 17 publications

References 51 publications

Experimental Study on Mechanical Behaviour of Arhar-Reinforced Composites using GRA with PCA

Experimental Study on Mechanical Behaviour of Arhar-Reinforced Composites using GRA with PCA

Role of hemp fiber addition on thermal stability, heat insulation, air permeability and cellular structural features of rigid polyurethane foam

Tensile Strength and Hardness of Polypropylene-Bamboo/Kenaf Hybrid Composite After Optimization of Production Process

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