Fabrication of poly(o -Anisidine)/Ag particles coated poly(ethylene terephthalate) nonwoven composite and investigation of antibacterial activity

2017 ◽  
Vol 39 ◽  
pp. E358-E365 ◽  
Author(s):  
Meryem Kalkan Erdoğan ◽  
Meral Karakışla ◽  
Mehmet Saçak
Keyword(s):  
Antibacterial Activity ◽  
Ethylene Terephthalate ◽  
Poly Ethylene Terephthalate ◽  
Ag Particles ◽  
Poly Ethylene

Bicomponent multifilament yarns of recycled poly(ethylene terephthalate) and nano-titanium dioxide for antibacterial carpet

2021 ◽  
pp. 152808372110117
Author(s):  
Sommai Pivsa-Art ◽  
Komson Sunyikhan ◽  
Weraporn Pivsa-Art
Keyword(s):  
Antibacterial Activity ◽  
Titanium Dioxide ◽  
Ethylene Terephthalate ◽  
Antibacterial Properties ◽  
Nano Structure ◽  
Elongation At Break ◽  
High Antibacterial Activity ◽  
Poly Ethylene Terephthalate ◽  
Poly Ethylene ◽  
Multifilament Yarns

Recycled poly(ethylene terephthalate) (RPET) multifilament yarns are used in carpet manufacturing as a way to reduce plastic waste. The conventional RPET carpet is however susceptible to bacterial accumulation. As a result, this research experimentally doped RPET with nano-structure titanium dioxide (nano-TiO2) to produce RPET/nano-TiO2 bicomponent multifilament yarns with antibacterial property. The experimental multifilament yarn structure consisted of two parts: neat RPET core and RPET/nano-TiO2 shell. The nano-TiO2 content in the shell was varied between 1 and 3 wt% and the core/shell (C/S) ratios between 90/10, 70/30, and 50/50 w/w. The effects of C/S ratio and nano-TiO2 content on the mechanical and antibacterial properties of bicomponent multifilament yarns were determined. The experimental results indicated that the C/S ratio had no effect on the tenacity and elongation at break. Meanwhile, the tenacity and elongation at break of bicomponent fibers increased with nano-TiO2 content in the shell. The TiO2-doped RPET bicomponent yarns effectively inhibited the growth of Escherichia coli and Staphylococcus aureus. The 90/10 bicomponent multifilament fiber with 3 wt% TiO2 achieved the highest antibacterial activity. The very high antibacterial activity was attributable to greater deposition of nano-TiO2 particles near and on the shell surface.

scholarly journals Electrospun Poly(ethylene Terephthalate)/Silk Fibroin Composite for Filtration Application

Polymers ◽  
2021 ◽  
Vol 13 (15) ◽  
pp. 2499
Author(s):  
Alena Opálková Šišková ◽  
Katarína Mosnáčková ◽  
Jakub Hrůza ◽  
Jaroslava Frajová ◽  
Andrej Opálek ◽  
...  
Keyword(s):  
Antibacterial Activity ◽  
Silk Fibroin ◽  
Ethylene Terephthalate ◽  
Filtration Efficiency ◽  
Vapor Permeability ◽  
Filtration Performance ◽  
Poly Ethylene Terephthalate ◽  
Fibrous Membranes ◽  
Poly Ethylene ◽  
The Impact

In this study, fibrous membranes from recycled-poly(ethylene terephthalate)/silk fibroin (r-PSF) were prepared by electrospinning for filtration applications. The effect of silk fibroin on morphology, fibers diameters, pores size, wettability, chemical structure, thermo-mechanical properties, filtration efficiency, filtration performance, and comfort properties such as air and water vapor permeability was investigated. The filtration efficiency (FE) and quality factor (Qf), which represents filtration performance, were calculated from penetration through the membranes using aerosol particles ranging from 120 nm to 2.46 μm. The fiber diameter influenced both FE and Qf. However, the basis weight of the membranes has an effect, especially on the FE. The prepared membranes were classified according to EN149, and the most effective was assigned to the class FFP1 and according to EN1822 to the class H13. The impact of silk fibroin on the air permeability was assessed. Furthermore, the antibacterial activity against bacteria S. aureus and E. coli and biocompatibility were evaluated. It is discussed that antibacterial activity depends not only on the type of used materials but also on fibrous membranes’ surface wettability. In vitro biocompatibility of the selected samples was studied, and it was proven to be of the non-cytotoxic effect of the keratinocytes (HaCaT) after 48 h of incubation.

Poly(ethylene terephthalate) films modified by UV-induced surface graft polymerization of vanillin derived monomer for antibacterial activity

2018 ◽  
Vol 103 ◽  
pp. 51-58 ◽  
Author(s):  
Hanène Salmi-Mani ◽  
Gabriel Terreros ◽  
Nadine Barroca-Aubry ◽  
Caroline Aymes-Chodur ◽  
Christophe Regeard ◽  
...  
Keyword(s):  
Antibacterial Activity ◽  
Ethylene Terephthalate ◽  
Graft Polymerization ◽  
Poly Ethylene Terephthalate ◽  
Surface Graft ◽  
Poly Ethylene

Polypyrrole and silver particles coated poly(ethylene terephthalate) nonwoven composite for electromagnetic interference shielding

2017 ◽  
Vol 52 (10) ◽  
pp. 1353-1362 ◽  
Author(s):  
Meryem Kalkan Erdoğan ◽  
Meral Karakışla ◽  
Mehmet Saçak
Keyword(s):  
Electromagnetic Interference ◽  
Ethylene Terephthalate ◽  
Electromagnetic Shielding ◽  
Scanning Electron Micrographs ◽  
Silver Particles ◽  
Shielding Effectiveness ◽  
Poly Ethylene Terephthalate ◽  
Ag Particles ◽  
Poly Ethylene ◽  
Electromagnetic Shielding Effectiveness

A conductive polypyrrole/silver/poly(ethylene terephthalate) composite was prepared by the polymerization of pyrrole with AgNO3 oxidant in the presence of poly(ethylene terephthalate) nonwoven. The effect of AgNO3/pyrrole mol ratio and concentrations of the reactants was investigated on the polypyrrole/silver content and surface resistivity of the composite. The deposition of shiny metallic Ag particles was observed on the composite during the polymerization of pyrrole. The weight fraction of the Ag particles in the polypyrrole/silver contents of the composite was determined by thermogravimetric analysis. It was observed from scanning electron micrographs that the morphology of the polypyrrole/silver particles changed with the increase in the polypyrrole/silver contents of the composite. The electromagnetic shielding effectiveness as well as the absorption loss, reflection loss with the values of absorbance and reflectance, showing their contributions to the electromagnetic shielding effectiveness value of the composite were determined within the frequency range of 15–3000 MHz. An absorption dominant shielding was obtained with the value of 13–15.5 desibel for double coated composite.

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