Accession Number:

ADA099975

Title:

The Fracture of Thermosetting Resins after Exposure to Water.

Descriptive Note:

Annual technical rept. no. 1, Oct 79-Oct 80,

Corporate Author:

KINGSTON POLYTECHNIC KINGSTON UPON THAMES (ENGLAND)

Personal Author(s):

Report Date:

1980-09-01

Pagination or Media Count:

47.0

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

Subject Categories:

  • Plastics
  • Mechanics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE