Accession Number:

AD0879291

Title:

Study for the Optimization of Continuous 'Whiskerizing'.

Descriptive Note:

Final technical rept. 22 Dec 69-21 Nov 70,

Corporate Author:

GENERAL TECHNOLOGIES CORP SPRINGFIELD VA

Personal Author(s):

Report Date:

1970-12-18

Pagination or Media Count:

44.0

Abstract:

The objective of this report is to optimize a continuous whiskerizing process for surface treatment of high modulus polyacrylonitrile-precursor graphite fiber to establish and operate a resin prepregging line for the fiber produced from the process and to develop and characterize chopped fiber molding compounds based on the continuous whiskerized fiber. The continuous fiber whiskerizing process was optimized at a nominal 2 whisker content, which yielded about 10,000 psi interlaminar shear strength with a fiber tow wet strand strength of over 200,000 psi. Laminates of the prepregged fiber showed excellent edge compression strengths in either the unidirectional or chopped fiber random layup forms, exceeding the values obtained from manufacturer surface-treated fiber laminates. Author, modified-PL

Subject Categories:

  • Refractory Fibers
  • Laminates and Composite Materials
  • Plastics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE