Please use this identifier to cite or link to this item:
http://repositorio.unitau.br/jspui/handle/20.500.11874/1723
metadata.dc.type: | Artigo de Periódico |
Title: | Evaluation of carbon fiber surface treated by chemical and cold plasma processes |
Authors: | Nohara, Liliana Burakowski Petraconi Filho, Gilberto Nohara, Evandro Luís Kleinke, Maurício Urban Rezende, Mirabel Cerqueira |
Abstract: | Sized PAN-based carbon fibers were treated with hydrochloric and nitric acids, as well as argon and oxygen cold plasmas, and the changes on their surfaces evaluated. The physicochemical properties and morphological changes were investigated by atomic force microscopy (AFM), scanning electron microscopy (SEM), X-ray photoelectron spectroscopy (XPS), tensile strength tests and Raman spectroscopy. The nitric acid treatment was found to cause the most significant chemical changes on the carbon fiber surface, introducing the largest number of chemical groups and augmenting the roughness. The oxygen plasma treatments caused ablation of the carbon fiber surface, removing carbon atoms such as CO and CO2 molecules. In addition, the argon plasma treatment eliminated defects on the fiber surface, reducing the size of critical flaws and thus increasing the fiber's tensile strength. |
metadata.dc.language: | Inglês |
metadata.dc.publisher.country: | Brasil |
Publisher: | ABM, ABC, ABPol |
metadata.dc.rights: | Acesso Aberto |
metadata.dc.rights.uri: | https://creativecommons.org/licenses/by-nc-nd/4.0 |
metadata.dc.identifier.doi: | 10.1590/S1516-14392005000300010 |
URI: | http://repositorio.unitau.br/jspui/handle/20.500.11874/1723 |
Issue Date: | 2005 |
Appears in Collections: | Artigos de Periódicos |
Files in This Item:
File | Size | Format | |
---|---|---|---|
S1516-14392005000300010.pdf | 997.16 kB | Adobe PDF | View/Open |
This item is licensed under a Creative Commons License