Polymer nanocomposites for automotive applications

Chowdhury, Muhammad Ifaz Shahriar; Autul, Yashdi Saif; Rahman, Sazedur; Hoque, Md Enamul

doi:10.1016/b978-0-12-824492-0.00010-6

Cited by 10 publications

(13 citation statements)

References 160 publications

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“…Polymers are among the best materials for friction units, as is well known. 6,7 Polymers can function in friction units that work in a wide range of loads, sliding speeds and temperatures in friction modes with and without lubrication because of their special set of properties (low density, a sufficient level of physical-mechanical and thermophysical properties, high level of chemical resistance, etc. ).…”

Section: Literary Reviewmentioning

confidence: 99%

Polymer composites based on aromatic polyamide and fillers of spherical and layered structure for friction units of high-performance equipment

Каbаt

Girin

Heti

2023

Proceedings of the Institution of Mechanical Engineers, Part L:

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Without the employment of new equipment, with units functioning at high levels of weights, sliding speeds and temperatures, the current growth of the sector is all but impossible. High levels of labour intensity have a detrimental impact on the dependability and durability of the product. Moving joints, which comprise friction units, frequently fail at the same time. It is vital to increase their dependability and durability. This can be accomplished by substituting more recent materials with higher-quality qualities for the friction pair materials. To create such materials, the researchers created an aromatic polyamide polymer that was filled with silicon- (silica gel, bentonite) and carbon-containing (technical carbon, graphite) components. It was determined that depending on their nature, structure and content in the polymer matrix, the addition of these fillers enables the reduction of the coefficient of friction and wear of the produced polymer composites by 1.5–2.5 and 20–40 times, respectively, during frictional interaction with steel. It was found that 10–15% by weight of the examined fillers in aromatic polyamide is the ideal concentration. It has been proven that polymer composites filled with layered materials (bentonite, graphite) perform better in terms of tribological qualities when in contact with steel than those filled with spherical elements (technical carbon, silica gel). The improvement of the tribological properties of the developed polymer composites in comparison to the original polymer was determined based on the microphotographs of steel surfaces and the study of their morphological (roughness) and physical (microhardness) properties. It was determined that the change in the friction nature was due to the creation of an antifriction coating on the metal friction surface from the products of tribochemical reactions occurring during friction.

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Section: Literary Reviewmentioning

confidence: 99%

Polymer composites based on aromatic polyamide and fillers of spherical and layered structure for friction units of high-performance equipment

Каbаt

Girin

Heti

2023

Proceedings of the Institution of Mechanical Engineers, Part L:

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“…Also, another application of polymer nanocomposites, related to the production and storage of energy through the improvement of existing energy devices and the creation of new smart energy devices, was registered. Modern constructions and vehicle components for the automotive sector require the development of new robust and light materials, which indicates that it is a sector of the economy that is developing very quickly [9,10].…”

Section: Polymer Matrix Nanocompositesmentioning

confidence: 99%

Polymer matrix nanocomposites from the ecological aspect in the automotive industry

Miladinović

Gajević²,

Ivanović³

et al. 2022

IOP Conf. Ser.: Mater. Sci. Eng.

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Demands of today’s automotive industry are increasing; there is a constant tendency of weight reduction and higher reliability of constructions. Pistons and piston liners for vehicles are mostly manufactured from aluminum-silicon alloys. With different manufacturing methods and/or the addition of some chemical elements, base alloy properties can be modified. Methods for hypereutectic aluminum alloys and composites manufacturing and their influence on material properties will be given in this paper. The influence of Si percentage in base alloy and how an addition of some chemical elements affects the properties of these materials will be observed as well.

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“…Polymer nanocomposites are being more widely used in various industries, including aerospace, 3 automotive, 4 food packaging, 5 radiation shielding materials, 6,7 fuel cells, 8 energy harvesting, 9 and biomedical applications. 10 The main benefit of employing polymers is their rapid processing time and strong chemical resistance.…”

Section: Introductionmentioning

confidence: 99%

Structural, mechanical, and thermal features of PVA/starch/graphene oxide nanocomposite enriched with WO₃ as gamma–ray radiation shielding materials for medical applications

Atta,

Abou‐Laila,

Abdelwahed

et al. 2023

Polymer Engineering & Sci

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Polyvinyl alcohol (PVA)/starch/graphene oxide nanocomposites containing different ratios of tungsten oxide (WO3) were prepared for use in the medical field as low‐cost, facile, eco‐friendly, and biodegradable low‐energy γ‐ray shielding materials. The effect of different WO3 loading (0, 2, 4, 8, and 12 wt%) on nanocomposites' structural, mechanical, and gamma attenuation properties was studied. X‐ray diffraction, Fourier transform infrared spectroscopy, and scanning electron microscope verified the incorporation of WO3 into the nanocomposite matrix. The thermal stability and activation energy of the decomposition of nanocomposites showed continuous improvement with increasing WO3. The maximum tensile strength and elongation of nanocomposites were achieved by incorporating 4 wt% WO3 compared to the lowest tensile strength and elongation at 8 and 12 wt% of WO3, respectively. The good filler distribution inside the polymeric matrix at lower filler loading compared to the creation of voids and agglomeration at higher filler levels explains this behavior. It was found that nanocomposites' calculated mass attenuation coefficient μm (cm2/g) increased with increasing WO3 at different photon energies. Half‐value layer (HVL) and tenth‐value layer (TVL) values fall as WO3 concentration rises. The sample with 12 wt% of WO3 exhibits lower HVL and TVL values and higher μm, demonstrating a more remarkable gamma attenuation ability. Such results endorsed the prepared nanocomposites as low energy γ‐rays attenuation materials in medical fields.Highlights PVA/starch/graphene oxide nanocomposites with different WO3s were fabricated as shielding materials. The impact of WO3 on nanocomposites' mechanical and shielding characteristics was studied Thermal stability of nanocomposites showed continuous improvement with increasing WO3 μm increased with continuously increasing WO3 at different photon energies.

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Polymer nanocomposites for automotive applications

Cited by 10 publications

References 160 publications

Polymer composites based on aromatic polyamide and fillers of spherical and layered structure for friction units of high-performance equipment

Polymer composites based on aromatic polyamide and fillers of spherical and layered structure for friction units of high-performance equipment

Polymer matrix nanocomposites from the ecological aspect in the automotive industry

Structural, mechanical, and thermal features of PVA/starch/graphene oxide nanocomposite enriched with WO₃ as gamma–ray radiation shielding materials for medical applications

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Polymer nanocomposites for automotive applications

Cited by 10 publications

References 160 publications

Polymer composites based on aromatic polyamide and fillers of spherical and layered structure for friction units of high-performance equipment

Polymer composites based on aromatic polyamide and fillers of spherical and layered structure for friction units of high-performance equipment

Polymer matrix nanocomposites from the ecological aspect in the automotive industry

Structural, mechanical, and thermal features of PVA/starch/graphene oxide nanocomposite enriched with WO3 as gamma–ray radiation shielding materials for medical applications

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Product

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Structural, mechanical, and thermal features of PVA/starch/graphene oxide nanocomposite enriched with WO₃ as gamma–ray radiation shielding materials for medical applications