Silicone Modified Resins for Graphite Fiber Laminates.

Abstract

When graphite fiber composites are burned, the liberated fibers may settle on electrical apparatus and cause severe damage. This problem can be minimized by bonding the fibers with silicone modified laminating resins that leave a siliceous residual char when they are burned. During the first year of this program, 85 silicone modified resins have been synthesized and evaluated for this application. Included were unsaturated polyesters, thermosetting methacrylates, epoxies, polyimides, and phenolics. Neat resins were judged in terms of Si content, homogeneity, hardness, char formation, and thermal stability. Char formation was estimated by thermogravimetry to 1,000 deg C in air and in N2. Thermal stability was evaluated by isothermal weight loss measurements for 200 hrs in air at three temperatures. jg p.4

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Document Details

Document Type
Technical Report
Publication Date
Sep 28, 1979
Accession Number
ADA302520

Entities

People

  • G. M. Bower
  • L. W. Frost

Tags

DTIC Thesaurus Topics

  • Body Weight
  • Composite Materials
  • Graphitic Materials
  • Hardness
  • Homogeneity
  • Laminates
  • Materials
  • Measurement
  • Methacrylates
  • Physical Properties
  • Polyesters
  • Residuals
  • Thermal Stability

Fields of Study

  • Materials science

Readers

  • Polymer Science and Engineering.
  • Thin Film Deposition Science.