Accession Number:

ADA207979

Title:

Improved Adhesion Performance of Polyamid Fibers in Fiber-Reinforced Composites

Descriptive Note:

Final rept. 1 Sep 1985-28 Feb 1989

Corporate Author:

CASE WESTERN RESERVE UNIV CLEVELAND OH

Personal Author(s):

Report Date:

1989-05-09

Pagination or Media Count:

28.0

Abstract:

The high tensile properties of composites reinforced by poly-p- phenylene terephthalamide fibers PPTA, sold under the trade name of Kevlar by Du Pont, are well known. However, the transverse properties are relatively low compared to composites utilizing other high modulus fibers. This has been attributed to poor adhesion between the fiber and the matrix, as evidenced by the observation of splitting and bare fibers at the fracture surfaces. The three main adhesion mechanisms include intermolecular interactions 2-6 kcal, primary chemical bonds 60-100 kcal, and mechanical interlocking variable.

Subject Categories:

  • Laminates and Composite Materials

Distribution Statement:

APPROVED FOR PUBLIC RELEASE