As Grown Y-Ba-Cu-O Thin Films with Fine Grains and the Fabrication of the Superconducting Lines

Surface and printing properties of synthetic film papers

“…In fact, for better development of microcavities, the ideal distribution of the filler particles should fall within the range 0.05-8 m, according to some authors. [3][4][5] New studies are currently being carried out, which are aiming to obtain microcavities on the film surfaces. Table III supplies the data for the static and kinetic frictions for all of the synthetic film papers at the two stretching rates, SRh and SRm.…”

“…Because of previous research into the increasing demand for cellulosic paper at international levels, 1,2 the development of synthetic paper has become the aim of several studies that have resulted in the publication of a considerable number of patents related to this product. [3][4][5][6][7][8] Furthermore, synthetic paper is practical when the inability of cellulosic paper to fulfill demand, especially in industrial printing, is considered. The positive outcome of the research related to synthetic paper validates the optimism of companies that are beginning to invest in this area.…”

“…9 -11 According to some sources, plastic films with the same characteristics as synthetic paper can be obtained by the mixture of thermoplastic polymers with filler particles, mainly, CaCO 3 , TiO 2 , and SiO 2 , and/or immiscible polymer blends, such as polystyrene (PS) together with either polypropylene (PP) or polyethylene (PE). [3][4][5]12,13 One of the most important characteristics of any kind of paper is its ability to be printed on. Cellulosic paper has a high capability of being printed on with several different kinds of ink because of its fibrilar and porous structures and also partially because of the high polarity of its fibers.…”

“…16 According to some authors, a very important part of improving the printing properties of synthetic paper is the development of microcavities, which is achieved by the stretching of a composite polymer film. 3,4,13 According to Benning and colleagues, 13 microcavities can be formed three different ways: (1) around the filler particles inside the main polymer, (2) in the interface of immiscible blends, or (3) between the continuous amorphous phase and the discontinuous crystalline phase of a semicrystalline polymer. This is a very important process and will produce microcavities during the stretching of the synthetic paper.…”

“…14 Among all of the physical and chemical surface treatments applied to the films, the three most often used are corona discharge, surface etching methods, and the addition of polar polymers in the composition of the films. 3,4,14,[17][18][19] These modifications increase the polar component of the surface free energy (␥ s p ) and, by doing so, also increase the ability of polar inks to be printed on the films.…”