Evaluation of carbon fiber surface treated by chemical and cold plasma processes



Título del documento: Evaluation of carbon fiber surface treated by chemical and cold plasma processes
Revista: Materials research
Base de datos: PERIÓDICA
Número de sistema: 000312868
ISSN: 1516-1439
Autores: 1
2
3
4
5
Instituciones: 1Instituto Tecnologico de Aeronautica, Departamento de Engenharia Aeronautica e Mecanica, Sao Jose dos Campos, Sao Paulo. Brasil
2Instituto Tecnologico de Aeronautica, Departamento de Fisica, Sao Jose dos Campos, Sao Paulo. Brasil
3Universidade de Taubate, Departamento de Engenharia Mecanica, Taubate, Sao Paulo. Brasil
4Universidade Estadual de Campinas, Instituto de Fisica "Gleb Wataghin", Campinas, Sao Paulo. Brasil
5Instituto de Aeronautica e Espaco, Divisao de Materiais, Sao Jose dos Campos, Sao Paulo. Brasil
Año:
Periodo: Jul-Sep
Volumen: 8
Número: 3
Paginación: 281-286
País: Brasil
Idioma: Inglés
Tipo de documento: Nota breve o noticia
Enfoque: Experimental
Resumen en inglés 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
Disciplinas: Ingeniería,
Química
Palabras clave: Ingeniería de materiales,
Química industrial,
Fibra de carbono,
Tratamiento químico,
Plasma,
Propiedades fisicoquímicas,
Tracción,
Morfología
Keyword: Engineering,
Chemistry,
Materials engineering,
Industrial chemistry,
Carbon fibers,
Chemical treatment,
Plasma,
Physicochemical properties,
Traction,
Morphology
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