Excimer Laser Ablation and Morphology of Uniaxially Stretched Poly(ethylene-2,6-naphthalate) Films

Autor:	Tsunehisa Kimura, Hisatsugu Tokunaga, Akira Yabe, Eiko Ito, Hiroyuki Niino
Rok vydání:	1999
Předmět:	Materials science Morphology (linguistics) Polymers and Plastics business.industry medicine.medical_treatment Ablation Microstructure Laser Fluence law.invention Amorphous solid Optics law Materials Chemistry medicine Perpendicular Irradiation Composite material business
Zdroj:	Polymer Journal. 31:524-529
ISSN:	1349-0540 0032-3896
DOI:	10.1295/polymj.31.524
Popis:	Microstructures formed by excimer laser ablation of uniaxially stretched poly(ethylene-2,6-naphthalate) (PEN) films were analyzed as a function of draw ratio, laser fluency, and number of pulses. Before ablation, stretched films with draw ratio higher than 3 exhibit band like structure on the surface running perpendicular to the drawing direction. By TEM observation of the cross section, this structure was found to extend into the bulk region. Upon laser pulse irradiation, microstructures are formed on the surface whose pattern and pitch are similar to those for the original band like structure. With further irradiation of pulses, pleated structures were formed with pitch larger than that for the original band like structure. Spectroscopic analysis of the pleated structure was conducted on the particles scratched off from the ablated surface. It was indicated that the pleated parts were amorphous but partially elongated.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::dbe0d223af052caf33280b0d5e5236d2 https://doi.org/10.1295/polymj.31.524 Zobrazit plný text záznamu