Research on Electroless Plating of Poly (Ethylene Terephthalate) Films by a New Palladiumfree Activation Process

2013 ◽  
Vol 750-752 ◽  
pp. 1954-1956
Author(s):  
Chun Wu ◽  
Wen Xin Ma ◽  
Ya Ping Chen ◽  
Yin Li ◽  
Yan Chen
Keyword(s):  
Electroless Plating ◽  
Ethylene Terephthalate ◽  
Activation Process ◽  
Surface Activation ◽  
Chemical Surface ◽  
Poly Ethylene Terephthalate ◽  
Nickel Particles ◽  
Poly Ethylene ◽  
Pet Film ◽  
Pet Films

In this essay the authors are seeking to examine a chemical surface activation process for NiP electroless plating of poly (ethylene terephthalate) (PET) films without using palladium catalyst, during which the nickel particles have been chelated with the C=O and COH groups of the carboxymethyl cellulose (CMC) on the PET film that are acting as a catalyst center for the electroless plating.

Constant-Temperature Embossing of Amorphous Poly(Ethylene Terephthalate) Films

2007 ◽  
Author(s):  
Donggang Yao ◽  
Pratapkumar Nagarajan ◽  
K. R. T. Ramasubramani
Keyword(s):  
Thermal Cycling ◽  
Amorphous Phase ◽  
Constant Temperature ◽  
Ethylene Terephthalate ◽  
Mold Temperature ◽  
Cycle Times ◽  
Poly Ethylene Terephthalate ◽  
Micro Features ◽  
Poly Ethylene ◽  
Pet Film

In the standard hot embossing process for thermoplastic polymers, thermal cycling is needed in order to soften and subsequently cool and solidify the polymer. This thermal cycling, however, not only results in long cycle times but also deteriorates the quality of embossed features. A new embossing method based on slowly crystallizing polymers was investigated to eliminate thermal cycling. Poly(ethylene terephthalate) was used as a model system for demonstration. Due to its slow crystallization, amorphous PET film can be made by casting a PET melt onto a chill roll. The amorphous PET film was embossed at a constant temperature of 180°C for a period of time comparable to or longer than PET’s half-time of crystallization. During constant-temperature embossing, the film first liquefies, caused by rubber softening of the amorphous phase, and then solidifies, resulting from the crystallization of the amorphous phase. Since the embossed film is hardened under the constant mold temperature, no cooling is needed. Selected micro features, including circular microchannels and high aspect ratio rectangular microchannels, were successfully embossed using a total cycle time about 40 s.

Surface Modification of Poly(Ethylene Terephthalate) in Air Plasma

2019 ◽  
Vol 27 (1) ◽  
pp. 128-136
Author(s):  
Mioara Drobota ◽  
Alexandru Trandabat ◽  
Marius Pislaru
Keyword(s):  
Contact Angle ◽  
Room Temperature ◽  
Ethylene Terephthalate ◽  
Film Surface ◽  
Air Plasma ◽  
Poly Ethylene Terephthalate ◽  
Modified Surface ◽  
Poly Ethylene ◽  
Pet Films ◽  
Polyester Film

Abstract This paper reports the modification of a polyester film surface in air plasma at room temperature. In order to evaluate the efficiency of the plasma treatment, the modified surface of the PET films was characterized by contact angle and ATR-FTIR spectroscopy.

Chemical Assays of End-groups Displayed on the Surface of Poly(ethylene terephthalate) (PET) Films and Membranes by Radiolabeling

1996 ◽  
Vol 7 (7) ◽  
pp. 589-598 ◽  
Author(s):  
Thierry Boxus ◽  
Michèle Deldime-Rubbens ◽  
Patrick Mougenot ◽  
Yves-Jacques Schneider ◽  
Jacqueline Marchand-Brynaert
Keyword(s):  
Ethylene Terephthalate ◽  
Poly Ethylene Terephthalate ◽  
End Groups ◽  
Poly Ethylene ◽  
Pet Films

Processing of plasma-modified and polymer-grafted hydrophilic PET surfaces, and study of their aging and bioadhesive properties

RSC Advances ◽  
2014 ◽  
Vol 4 (59) ◽  
pp. 31409-31415 ◽  
Author(s):  
Maria Jesus Perez-Roldan ◽  
Dominique Debarnot ◽  
Fabienne Poncin-Epaillard
Keyword(s):  
Ethylene Terephthalate ◽  
Poly Ethylene Terephthalate ◽  
Poly Ethylene ◽  
Pet Films

In this work, poly(ethylene terephthalate) (PET) films were treated by oxygen and helium plasmas and their chemistry and morphology were studied.

Sign in / Sign up

Export Citation Format

Share Document