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308331

INVESTIGATION OF MECHANICAL AND TRIBOLOGICAL PROPERTIES OF THE PTFE/PA12 POLYMERIC DUAL-MATRIX REINFORCED WITH ZnO NPs FOR PROSTHETICS APPLICATIONS.

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Last updated: 25 Dec 2024

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Abstract

The current study aims to introduce novel nanocomposites consisted of polymeric dual-matrix, polytetrafluorethylene/polyamide12 (PTFE/PA12), reinforced with zinc oxide nanoparticles (ZnO NPs) for prosthetics applications. PA12 content to polymeric dual-matrix was 5, 10, 15, and 20 weight fraction (wt. %). Also, ZnO NPs, which were characterized by transmission electron microscope (TEM), were filled into the dual-matrix of PTFE/PA12 by 0.25, 0.5, 1, and 1.5 wt. %. All the present nanocomposites were fabricated by a hot-pressing technique. Compression, microhardness, wear, and friction tests were performed to study the mechanical and tribological properties of all the fabricated nanocomposites. After the wear test, worn surfaces were examined by scanning electron microscope (SEM) to emphasize the occurred wear mechanism.
 
Experimental results revealed that the optimum content of PA12 and ZnO NPs into proposed nanocomposites were 15 and 1 wt. %, respectively. Consequently, elastic modulus, compressive yield strength, Vickers hardness number (VHN), wear rate and friction coefficient of PTFE/15 wt. % PA12, as a dual-matrix, were enhanced by 125.48, 70.88, 81.68, 57.27, and 54.16 %, respectively compared to pure PTFE. Also, elastic modulus, compression yield strength, VHN, wear rate, and friction coefficient of the proposed PTFE/15 wt. %/1 wt. % ZnO NPs composite showed significant improvements by 51.58, 58.59, 50.86, 73.91, and 44.63%, respectively compared to the pure dual-matrix. Worn surfaces of the proposed composites proved that a significant enhancement was observed compared to the other worn surfaces. According to that, the proposed nanocomposites of PTFE/15 wt. % PA12/1 wt. % ZnO NPs are considered as a suitable choice for prosthetic applications.

DOI

10.21608/jest.2023.308331

Keywords

wear rate, Friction coefficient, Vickers hardness number, compressive yield strength, Elastic modulus

Authors

First Name

A. El-Sayed M.

Last Name

Hassan

MiddleName

-

Affiliation

Production Technology Dept., Faculty of Technology and Education, Beni-Suef University, Beni-Suef, EGYPT.

Email

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City

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Orcid

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First Name

M. N.

Last Name

El‑Sheikh

MiddleName

-

Affiliation

Production Technology Dept., Faculty of Technology and Education, Beni-Suef University, Beni-Suef, EGYPT.

Email

elsheikh53@yahoo.com

City

-

Orcid

-

First Name

M. Nafea M.

Last Name

Rohim

MiddleName

-

Affiliation

Production Technology Dept., Faculty of Technology and Education, Beni-Suef University, Beni-Suef, EGYPT.

Email

-

City

-

Orcid

-

Volume

20

Article Issue

3

Related Issue

42488

Issue Date

2023-07-01

Receive Date

2023-07-17

Publish Date

2023-07-01

Page Start

23

Page End

39

Print ISSN

2090-5882

Online ISSN

2090-5955

Article File

JEST_Volume 20_Issue 3_Pages 23-39.pdf

PDF . 1.3MB

Link

https://jest.journals.ekb.eg/article_308331.html

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https://jest.journals.ekb.eg/service?article_code=308331

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308,331

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Original Article

Type Code

1,211

Publication Type

Journal

Publication Title

Journal of the Egyptian Society of Tribology

Publication Link

https://jest.journals.ekb.eg/

MainTitle

INVESTIGATION OF MECHANICAL AND TRIBOLOGICAL PROPERTIES OF THE PTFE/PA12 POLYMERIC DUAL-MATRIX REINFORCED WITH ZnO NPs FOR PROSTHETICS APPLICATIONS.

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Type

Article

Created At

25 Dec 2024