Surface characterization and antibacterial activity of chitosan-grafted poly(ethylene terephthalate) prepared by plasma glow discharge

2001 ◽  
Vol 81 (11) ◽  
pp. 2769-2778 ◽  
Author(s):  
Man Woo Huh ◽  
Inn-Kyu Kang ◽  
Du Hyun Lee ◽  
Woo Sik Kim ◽  
Dong Ho Lee ◽  
...  
Keyword(s):  
Antibacterial Activity ◽  
Glow Discharge ◽  
Surface Characterization ◽  
Ethylene Terephthalate ◽  
Plasma Glow ◽  
Poly Ethylene Terephthalate ◽  
Plasma Glow Discharge ◽  
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.

Surface Characterization and In Vitro Blood Compatibility of Poly(Ethylene Terephthalate) Immobilized with Hirudin

2005 ◽  
Vol 288-289 ◽  
pp. 421-424
Author(s):  
F. Li ◽  
Jin Wang ◽  
H. Sun ◽  
Nan Huang
Keyword(s):  
Free Energy ◽  
Photoelectron Spectroscopy ◽  
Surface Characterization ◽  
Ethylene Terephthalate ◽  
Blood Compatibility ◽  
Argon Plasma ◽  
Angle Measurement ◽  
Poly Ethylene Terephthalate ◽  
Poly Ethylene

Poly(ethylene terephthalate) films were exposed under argon plasma glow discharge and induced polymerization of acrylic acid (AA) in order to introduce carboxylic acid group onto PET (PET-AA) assisting by ultroviolet radiation. Hirudin-immobilized PETs were prepared by the grafting of PET-AA, followed by chemical reaction with hirudin. The surface structure of the treated PET is determined by X-ray photoelectron spectroscopy (XPS). The wettability and surface free energy, interface free energy of the films is investigated by contact angle measurement. Platelet adhesion evaluatiion is conducted to examine the blood compatibility in vitro. Scanning electron microscopy (SEM) and optical microscopy reveal that the amounts of adhered, aggregated and morphologically changed platelets are reduced on hirudin-immobilized PET films.

Surface characterization of plasma-modified poly(ethylene terephthalate) film surfaces

2004 ◽  
Vol 42 (20) ◽  
pp. 3727-3740 ◽  
Author(s):  
Norihiro Inagaki ◽  
Kazuo Narushim ◽  
Norio Tuchida ◽  
Kohji Miyazaki
Keyword(s):  
Surface Characterization ◽  
Ethylene Terephthalate ◽  
Poly Ethylene Terephthalate ◽  
Poly Ethylene

Improving the adhesion of poly(ethylene terephthalate) fibers to poly(hydroxyethyl methacrylate) hydrogels by ozone treatment: Surface characterization and pull-out tests

Polymer ◽  
2005 ◽  
Vol 46 (23) ◽  
pp. 9840-9850 ◽  
Author(s):  
Lino Ferreira ◽  
Marta B. Evangelista ◽  
Ma Cristina L. Martins ◽  
Pedro L. Granja ◽  
José L. Esteves ◽  
...  
Keyword(s):  
Surface Characterization ◽  
Ethylene Terephthalate ◽  
Ozone Treatment ◽  
Hydroxyethyl Methacrylate ◽  
Pull Out ◽  
Poly Ethylene Terephthalate ◽  
Poly Ethylene
Sign in / Sign up

Export Citation Format

Share Document