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Air-ozonolysis activation of polyolefins versus use of laden finishing to form contact-active nonwoven materials
- Source :
- Scientific Reports, Scientific Reports, Vol 11, Iss 1, Pp 1-10 (2021)
- Publication Year :
- 2020
-
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.
- Subjects :
- Materials science
Surface Properties
Science
02 engineering and technology
Microbial Sensitivity Tests
Conjugated system
Polypropylenes
01 natural sciences
Chloride
Article
chemistry.chemical_compound
Ozone
Engineering
Drug Stability
0103 physical sciences
medicine
chemistry.chemical_classification
Polypropylene
Multidisciplinary
Ozonolysis
Microbial Viability
010304 chemical physics
biology
Cetrimonium
Temperature
Health care
Active site
Salmonella enterica
Polymer
Polyethylene
Hydrogen-Ion Concentration
021001 nanoscience & nanotechnology
Anti-Bacterial Agents
Quaternary Ammonium Compounds
Chemistry
chemistry
Chemical engineering
Covalent bond
biology.protein
Medicine
Polyethylenes
0210 nano-technology
medicine.drug
Bacillus subtilis
Subjects
Details
- ISSN :
- 20452322
- Volume :
- 11
- Issue :
- 1
- Database :
- OpenAIRE
- Journal :
- Scientific reports
- Accession number :
- edsair.doi.dedup.....151a7a5430e3d101e9a5d35b8bbb7703