Influence of surface treatments on the mechanical properties of fibre reinforced thermoplastic composites

Bessa, João; Matos, Joana; Mota, Carlos; Cunha, Fernando Eduardo Macedo; Araújo, Isabel; Silva, Luís; Pinho, Elizabete; Fangueiro, Raúl

doi:10.1016/j.proeng.2017.07.065

Cited by 24 publications

(9 citation statements)

References 7 publications

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“…The mechanical properties of pineapple fibre composite were found to be improved by alkali treatment due to the exclusion of non-cellulosic constituents. 127 Gonzalez et al 129 reported an enhancement in properties of henquen fibres/high-density polyethylene composite after alkali treatment owing to elimination of few lignin and hemicelluloses from the surface of fibres leading to increased contact surface area between fibre and matrix. The improvement in tensile and flexural performances of coir fibre/polybutylene succinate composites was obtained after alkali treatment at 5 wt.…”

Section: Mechanical Properties Of Thermoplastic-based Biocompositesmentioning

confidence: 99%

“…130 The elongation at the break of flax fabrics thermoplastic composites increased by reinforcement of NaOH-treated fibres. 129 Chalid et al 130 prepared the composite using polylactic acid and ijuk fibre to mitigate the impact of environmental pollution. Alkali treatment was done on ijuk fibre using 0.25 M NaOH solution for 30 min to enhance compatibility between ijuk fibre and PLA.…”

Section: Mechanical Properties Of Thermoplastic-based Biocompositesmentioning

confidence: 99%

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A review on the properties of natural fibres and its bio-composites: Effect of alkali treatment

Sahu

Gupta

2019

Proceedings of the Institution of Mechanical Engineers, Part L:

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Due to the dominating advantages of natural fibres such as biodegradability, eco-friendliness, nominal cost, low density and high specific strength, they are being used opposite to synthetic fibres in many industrial applications. Despite many advantages, these fibres face some limitations such as higher moisture uptake, quality variations, low thermal stability, and poor compatibility with polymeric matrix. To overcome these limitations, chemical treatments of these fibres were found to be the most suitable method to improve adhesion with polymers, increase their strength and water absorption resistance, and improve their composite properties also. Among chemical treatments, alkali treatment is the most widely used and versatile surface modification method of the natural fibres. A good number of research works have been carried out on effect of alkali treatment on the properties of natural fibres and its composites, which motivated for this review. In this paper, the effect of alkali treatment on the properties of natural fibres has been reviewed. In addition, the physical and mechanical properties, thermal analysis and tribological behaviour of its biocomposites are also reviewed. It was concluded that alkali treatment of natural fibres could provide enhanced properties of various bio-composites up to a great extent.

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Section: Mechanical Properties Of Thermoplastic-based Biocompositesmentioning

confidence: 99%

Section: Mechanical Properties Of Thermoplastic-based Biocompositesmentioning

confidence: 99%

A review on the properties of natural fibres and its bio-composites: Effect of alkali treatment

Sahu

Gupta

2019

Proceedings of the Institution of Mechanical Engineers, Part L:

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“…Due to an increase in environmental issues, Natural fibers have been proved to be better raw materials in many sectors, mainly in the automotive industry. The most common materials used in automotive sectors are synthetic fibers, like carbon and glass [2]. However, researchers are very much focused on studying the natural fibers as it provided the desired properties like less expensive, lower density, high toughness, harmless, sustainable, soft, and environment friendly features [3].…”

Section: Introductionmentioning

confidence: 99%

Study of raw and chemically treated Sansevieria ehrenbergii fibers for brake pad application

Subramanian

Srinivasan

Ponmariappan

et al. 2020

Mater. Res. Express

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The replacement for synthetic fiber and other materials with natural fiber in the brake pad has become a key research area in many industries. Many production industries are always focused on natural fiber over synthetic fibers because of its advantage of biodegradability, less expensive, availability, and environment friendly. However, natural fibers cannot be used directly in composites because of its poor adhesion behavior between matrix and fiber and observe high water content in the fiber. Further, the excess water content in the inside fiber has been removed by using alkaline, benzoylation, and acetylation treatment. It has been achieved by the same chemical concentration but with different time duration. The Fourier-transform infrared spectroscopy (FT-IR) analysis revealed that the amount of cellulose content after chemical treatment was improved and decrease in other substances like hemicellulose, lignin, and wax content. X-Ray Diffraction (XRD) analysis study confirmed that the rise in the crystalline index (70.41 from 52.7) of alkali-treated SEFs at 30 min. The thermogravimetric analysis study has confirmed that the increase in the degradation temperature of Benzoyl-treated SEFs (387°C) at 60 min when compared with untreated fiber (320°C). The Scanning Electron Microscope (SEM) results have confirmed that the elimination of impurities from the fiber surface after chemical treatment. Further, the acetyl-treated fibers have shown that better hydrophobic properties than other treated fibers. In the above tests have been concluded that the chemically treated fibers, as one of the suitable materials for the development of the brake pad application.

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“…The various treatments had been done by various researchers the usage of potassium permanganate is expected to escalate the tensile and flexural strength of composite and the impact strength is directly related to the thickness of the natural fiber composite [4]. Joao Bessa et al [8] in his research highlighted that depending on the interface properties and method of bonding and applied a concentration of surface treatment the properties are altered. Ajithgopinath [12] had shown that the addition of jute fiber (12-24%) increases the mechanical properties.…”

Section: Introductionmentioning

confidence: 99%

Investigation of Mechanical Properties of Natural Fiber Composite with , without Fiber Surface Treatments

Giri¹,

Jayakumar²,

Kumar³

et al. 2018

IJMPERD

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Natural fiber composites are used for various applications in automobile, Industrial and domestic fields due to their high flexibility and tensile strength. Many works have been carried out to enhance the mechanical properties of composites. In this paper, the effect of fiber surface treatments on mechanical properties of different natural fiber composites is investigated. In this work, three composites with jute 20% fiber, with banana 10% fiber and hybrid fiberwith jute 15% and banana 15% were fabricated and mechanical tests were carried out. Then the fibers were treated with 3% of potassium permanganate to improve the bonding between fiber and matrix and polyester was used as resin along with 3% cobalt naphthenate for curing and 5% methyl ethyl ketone peroxide. The tensile test, flexural and impact tests were conducted on those surface treated composites. The test results comparing with and without surface treatedcomposites showed that there was good improvement in the flexural strength and tensile test when the fibers were treated.

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Influence of surface treatments on the mechanical properties of fibre reinforced thermoplastic composites

Cited by 24 publications

References 7 publications

A review on the properties of natural fibres and its bio-composites: Effect of alkali treatment

A review on the properties of natural fibres and its bio-composites: Effect of alkali treatment

Study of raw and chemically treated Sansevieria ehrenbergii fibers for brake pad application

Investigation of Mechanical Properties of Natural Fiber Composite with , without Fiber Surface Treatments

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