Surface modification by continuous graft copolymerization. I. Photoinitiated graft copolymerization onto polyethylene tape film surface

1990 ◽  
Vol 40 (910) ◽  
pp. 1647-1661 ◽  
Author(s):  
Zhang Pei Yao ◽  
Bengt RÅNby
Keyword(s):  
Surface Modification ◽  
Graft Copolymerization ◽  
Film Surface

scholarly journals Surface modification and adhesion improvement of polyester films

2013 ◽  
Vol 11 (1) ◽  
pp. 35-45 ◽  
Author(s):  
Aniello Cammarano ◽  
Giovanna Luca ◽  
Eugenio Amendola
Keyword(s):  
Free Energy ◽  
Surface Modification ◽  
Surface Free Energy ◽  
Self Assembly ◽  
Treatment Time ◽  
Solution Treatment ◽  
Film Surface ◽  
Critical Surface ◽  
Hydrolysis Time ◽  
Critical Surface Tension

AbstractFacile surface modification of polyester films was performed via chemical solutions treatment. Surface hydrolysis was carried out by means of sodium hydroxide solutions, leading to the formation of carboxylate groups. Three commercial polyester films of 100 μm in thickness were used in this work: AryLite™, Mylar™, and Teonex™, hydrolysis time being the main modification parameter. FTIR-ATR analysis, topography and contact angle (CA) measurements, surface free energy (SFE) and T-Peel adhesion tests were carried out to characterize the modified films. A quantitative estimate of the carboxylates surface coverage as a function of treatment time was obtained through a supramolecular approach, i.e. the ionic self-assembly of a tetracationic porphyrin chromophore onto the film surface. The surface free energy and critical surface tension of the hydrolyzed polyesters was evaluated by means of Zisman, Saito, Berthelot and Owens-Wendt methods. It was shown that NaOH solution treatment increases roughness, polarity and surface free energy of polymers. As a result, T-Peel strengths for modified Mylar™ and Teonex™ films were respectively 2.2 and 1.8 times higher than that for the unmodified films, whereas AryLite™ adhesion test failed.

Surface modification of polyimide films by graft copolymerization

1995 ◽  
Vol 56 (13) ◽  
pp. 1707-1713 ◽  
Author(s):  
F. C. Loh ◽  
C. B. Lau ◽  
K. L. Tan ◽  
E. T. Kang
Keyword(s):  
Surface Modification ◽  
Graft Copolymerization ◽  
Polyimide Films

Surface modification of polypropylene membranes by γ-ray induced graft copolymerization and their solute permeation characteristics

2001 ◽  
Vol 190 (2) ◽  
pp. 215-226 ◽  
Author(s):  
Jin Kie Shim ◽  
Hee Seok Na ◽  
Young Moo Lee ◽  
Hoon Huh ◽  
Young Chang Nho
Keyword(s):  
Surface Modification ◽  
Graft Copolymerization ◽  
Γ Ray

Surface Modification of Parylene C Film and Application

2013 ◽  
Vol 750-752 ◽  
pp. 1887-1890
Author(s):  
Li Sheng Zhang ◽  
Yuan Lin Zhou ◽  
Yang Guo ◽  
Ye Yang
Keyword(s):  
Surface Modification ◽  
Benzene Ring ◽  
Film Surface ◽  
Attenuated Total Reflection ◽  
X Ray Diffraction ◽  
Parylene C ◽  
X Ray ◽  
Fourier Transformation Infrared Spectroscopy ◽  
Function Group ◽  
Cl Atom

In this article, we report the surface modification results of Parylene C Film by solution of sodium naphthalene complex and its application. In this work, the function group and the crystal structure of the film were characterized separately with Attenuated Total Reflection Fourier transformation infrared spectroscopy (ATR-FTIR) and X-ray diffraction (XRD).The result of test shows that the bond of carbon (C) and chlorine (Cl) is damaged; The crystalline of the film reduces, and the NaCl crystal exist on the film surface. The surface energy of the film is increased from 28.64mJ/m2 to 41.48mJ/m2, and the shearing tension of modified film was reached over 212.8kPa.The generalized analysis result indicated that nucleophilic reagent destructs the C-Cl bond on the benzene ring, the chlorine (Cl) atom on the benzene ring and the sodium ion in modified reagent forms the sodium chloride which adheres to the film surface.

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