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206994

SELECTION OF THE PROPER MATERIALS FOR MEDICAL FACEMASK

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Last updated: 25 Dec 2024

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Abstract

Medical facemask is proposed to withstand COVID-19 virus concentration. It contains woven microfibers of polypropylene (PP) and polyamide (PA). PP forms the negatively charged external layer to repel viruses and maintain the health of the mask wearer. PA microfibers as internal layer has a positive charge and can capture the negatively charged viruses like COVID-19.
 
The present experiments revealed that when the air passes through PP fibers, it generates negative electrostatic charge (ESC) on their surfaces. Because viruses including COVID-19 have negative charge, it is recommended to use PP fibers as external layer to be able to repel the viruses away. Due to the contact and separation of PA with PP fibers caused by inhalation and exhalation, ESC can be generated. According to that, the inner layer should be made of PA fibers of positive ESC to capture viruses.  Because protection from COVID-19 viruses needs filtration of particle size down to 0.01 µm, it is advised to use ESC as tool to enhance the filtration efficiency of the facemask. It was observed that the arrangement of the mask (PA PP PA PP) gave the best results, where ESC generated of negative charge extended to 17 mm in front of mask and provided negative electric field that able to repel the viruses away. In addition, the inner PA layer could attract the negative charged viruses and guarantee the safety of the people contacting the mask wearer.
 

DOI

10.21608/jest.2021.206994

Keywords

Facemask, Coronavirus, Microfibers, polypropylene, polyamide

Authors

First Name

A. S.

Last Name

Ali

MiddleName

-

Affiliation

Mechanical Engineering Dept., Faculty of Engineering, Suez Canal University, EGYPT.

Email

eng_ahmed_yossef@hotmail.com

City

-

Orcid

-

First Name

M. M.

Last Name

Youssef

MiddleName

-

Affiliation

Department of Automotive engineering and Tractors, Faculty of Engineering, Minia University, El-Minia, EGYPT.

Email

-

City

-

Orcid

-

First Name

W. Y.

Last Name

Ali

MiddleName

-

Affiliation

Department of Production engineering and Mechanical Design, Faculty of Engineering, Minia University, El-Minia, EGYPT.

Email

-

City

-

Orcid

-

First Name

A. H.

Last Name

Badran

MiddleName

-

Affiliation

Department of Production engineering and Mechanical Design, Faculty of Engineering, Minia University, El-Minia, EGYPT.

Email

-

City

-

Orcid

-

Volume

18

Article Issue

4

Related Issue

29148

Issue Date

2021-10-01

Receive Date

2021-06-21

Publish Date

2021-10-01

Page Start

14

Page End

24

Print ISSN

2090-5882

Online ISSN

2090-5955

Article File

JEST_Volume 18_Issue 4_Pages 14-24.pdf

PDF . 534.6kB

Link

https://jest.journals.ekb.eg/article_206994.html

Detail API

https://jest.journals.ekb.eg/service?article_code=206994

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Type

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

SELECTION OF THE PROPER MATERIALS FOR MEDICAL FACEMASK

Details

Type

Article

Created At

22 Jan 2023