The Fracture of Thermosetting Resins after Exposure to Water.

Abstract

Advanced composite materials should be able to withstand hot, wet conditions. This investigation is concerned with organic, cross-linked resins and specifically with unsaturated polyester resins. The aim was to determine the extent of loss of fracture toughness of the unreinforced resins as a result of immersion in hot water. Data are presented for one polyester resin, immersed in water at 30 C and at 65 C for nearly two years. A theory of degradation is outlined. The findings are currently being extended to a series of resins differing only in molecular weight distribution and in number-average molecular weight. The outcome should be the establishment of optimum molecular weight distributions. (Author)

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Document Details

Document Type
Technical Report
Publication Date
Sep 01, 1980
Accession Number
ADA099975

Entities

People

  • Geoffrey Pritchard
  • R. G. Rose

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Anhydrides
  • Biomedical And Dental Materials
  • Chemistry
  • Composite Materials
  • Fracture (Mechanics)
  • Glass Transition Temperature
  • Hot Water
  • Material Degradation Processes
  • Materials
  • Materials Laboratories
  • Materials Processing
  • Materials Science
  • Measurement
  • Mechanics
  • Resins
  • Sodium Hydroxide
  • Thermosetting Plastics

Readers

  • Materials Science
  • Polymer Science and Technology
  • Reinforced Composite Materials