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Air-ozonolysis activation of polyolefins versus use of laden finishing to form contact-active nonwoven materials
Year:
2021
Source of publication :
Scientific Reports
Authors :
Klein, Miri
;
.
Kroupitski, Yulia
;
.
Peiper, Uri M.
;
.
Poverenov, Elena
;
.
Sela, Shlomo
;
.
Volume :
Co-Authors:

Stella Kiel 
Miri Klein 
Yulia Kroupitski 
Uri M Peiper 
Shlomo Sela Saldinger 
Elena Poverenov               

Facilitators :
From page:
0
To page:
0
(
Total pages:
1
)
Abstract:

Two synthetic approaches were explored for modification of the polyolefins polyethylene/polypropylene (PE/PP) to form contact-active nonwoven materials. In the first approach, polymer surfaces were activated by O2-free air-ozonolysis, and then the active agent (trimethoxysilyl) propyl-octadecyl-dimethyl-ammonium chloride (C18-TSA) was covalently bound. In the second approach, the active agent was directly conjugated to the commercial 'finishing' that was then applied to the polymer. The chemical, physical and microscopic properties of the modified polymers were comprehensively studied, and their active site density was quantified by fluorescein sodium salt-cetyltrimethylammonium chloride reaction. The antimicrobial activity of the prepared nonwovens against Bacillus subtilis (Gram-positive) and Salmonella enterica (Gram-negative), and their stability at various pHs and temperatures were examined. The two approaches conferred antimicrobial properties to the modified polymers and demonstrated stable linkage of C18-TSA. However, the performance of the nonwovens formed by the first approach was superior. The study suggests two feasible and safe pathways for the modification of polyolefins to form contact-active nonwoven materials that can be further applied in various fields, such as hygiene products, medical fabrics, sanitizing wipes, and more.

Note:
Related Files :
Air-ozonolysis
POLYOLEFINS
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More details
DOI :
10.1038/s41598-021-90218-2
Article number:
0
Affiliations:
Database:
PubMed
Publication Type:
article
;
.
Language:
English
Editors' remarks:
ID:
55259
Last updated date:
02/03/2022 17:27
Creation date:
01/06/2021 16:31
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Scientific Publication
Air-ozonolysis activation of polyolefins versus use of laden finishing to form contact-active nonwoven materials

Stella Kiel 
Miri Klein 
Yulia Kroupitski 
Uri M Peiper 
Shlomo Sela Saldinger 
Elena Poverenov               

Air-ozonolysis activation of polyolefins versus use of laden finishing to form contact-active nonwoven materials .

Two synthetic approaches were explored for modification of the polyolefins polyethylene/polypropylene (PE/PP) to form contact-active nonwoven materials. In the first approach, polymer surfaces were activated by O2-free air-ozonolysis, and then the active agent (trimethoxysilyl) propyl-octadecyl-dimethyl-ammonium chloride (C18-TSA) was covalently bound. In the second approach, the active agent was directly conjugated to the commercial 'finishing' that was then applied to the polymer. The chemical, physical and microscopic properties of the modified polymers were comprehensively studied, and their active site density was quantified by fluorescein sodium salt-cetyltrimethylammonium chloride reaction. The antimicrobial activity of the prepared nonwovens against Bacillus subtilis (Gram-positive) and Salmonella enterica (Gram-negative), and their stability at various pHs and temperatures were examined. The two approaches conferred antimicrobial properties to the modified polymers and demonstrated stable linkage of C18-TSA. However, the performance of the nonwovens formed by the first approach was superior. The study suggests two feasible and safe pathways for the modification of polyolefins to form contact-active nonwoven materials that can be further applied in various fields, such as hygiene products, medical fabrics, sanitizing wipes, and more.

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