Accession Number:

ADA037646

Title:

Interfacial Aspects of Polymer Coating by Electropolymerization.

Descriptive Note:

Technical rept.,

Corporate Author:

WASHINGTON STATE UNIV PULLMAN DEPT OF MATERIALS SCIENCE AND ENGINEERING

Report Date:

1977-03-01

Pagination or Media Count:

9.0

Abstract:

Polymer coatings can be formed on carbon fiber electrodes by electropolymerization of a variety of monomers. Polymer coatings from water high surface tension are superior to those from organic solvents low surface tension. This is attributed to the importance of monomer adsorption on the electrode to the adhesion of the subsequently formed polymer. Single fiber pull-out tests seem to indicate three distinct modes of failure and degrees of adhesion to an epoxy matrix strong, intermediate and poor, which are independent of the types of polymer coating on the fiber. A significant feature of the results is the observation of the formation of a cone around the fiber, energy for which is needed to be expended before fiber pull-out can occur. In contrast to the fiber pull-out tests, interlaminar shear tests of composites prepared from the coated fibers reveal specific influences of the molecular features of the interphase polymer on composite properties. Author

Subject Categories:

  • Coatings, Colorants and Finishes
  • Laminates and Composite Materials

Distribution Statement:

APPROVED FOR PUBLIC RELEASE