Effect of Carbon Nanofiber-Matrix Adhesion on Polymeric Nanocomposite Properties—Part II

A successful integration of two independent phases with good adhesion is imperative for effective translation of superior carbon nanofiber filler properties into a physically superior carbon nanocomposite. Carbon nanofibers were subjected to electrochemical oxidation in 0.1 M nitric acid for varying...

Full description

Saved in:
Bibliographic Details
Published inJournal of nanomaterials Vol. 2008; no. 1
Main Authors Lafdi, Khalid, Fox, William, Matzek, Matthew, Yildiz, Emel
Format Journal Article
LanguageEnglish
Published New York Hindawi Publishing Corporation 01.01.2008
Hindawi Limited
Subjects
Bond strength
Carbon
Interfacial bonding
Nanomaterials
Physical properties
Scanning electron microscopy
Online AccessGet full text

Cover

More Information
Summary:A successful integration of two independent phases with good adhesion is imperative for effective translation of superior carbon nanofiber filler properties into a physically superior carbon nanocomposite. Carbon nanofibers were subjected to electrochemical oxidation in 0.1 M nitric acid for varying times. The strength of adhesion between the nanofiber and an epoxy matrix was characterized by flexural strength and modulus. The surface functional groups formed and their concentration of nanofibers showed a dependence on the degree of oxidation. The addition of chemical functional groups on the nanofiber surface allows them to physically and chemically adhere to the continuous resin matrix. The chemical interaction with the continuous epoxy matrix results in the creation of an interphase region. The ability to chemically and physically interact with the epoxy region is beneficial to the mechanical properties of a carbon nanocomposite. A tailored degree of surface functionalization was found to increase adhesion to the matrix and increase flexural modulus.
ISSN:1687-4110
1687-4129
DOI:10.1155/2008/310126