Accession Number : ADA138977

Title :   The Curing of a Bisphenol A Type Epoxy Resin with 1,8 Diamino-P-Menthane.

Descriptive Note : Master's thesis,

Corporate Author : NAVAL AIR DEVELOPMENT CENTER WARMINSTER PA AIRCRAFT AND CREW SYSTEMS TECHNOLOGY DIRECTORATE

Personal Author(s) : Donnellan,T M

PDF Url : ADA138977

Report Date : Jun 1982

Pagination or Media Count : 33

Abstract : Differential Scanning Calorimetry (DSC), Torsional Braid Analysis (TBA), and Fourier Transform Infrared Spectroscopy (FT-IR) were used to study the cure characteristics of an epoxy system which utilized a sterically hindered amine curing agents. The apparent activation energy was found to be 13.3 kCal./Mol. by DSC and 12.8 kCal./Mol. by FT-IR. Resin volatility hindered useful application of conventional TBA techniques. The resin was found to react to a partially cured (52 percent) state at room temperature and then vitrify. Samples stored for a two month period showed no advance in cure state. Subsequent application of heat caused resin devitrification and advance to a more fully cured state. The isothermal curing behavior was studied in a temperature range from 100 C to 150 C. (Author)

Descriptors :   *EPOXY RESINS, *CURING, AMINES, CURING AGENTS, METHODOLOGY, SCANNING, CALORIMETRY, FOURIER TRANSFORMATION, INFRARED SPECTROSCOPY, ACTIVATION ENERGY, VOLATILITY, TEMPERATURE, RANGE(EXTREMES), TORSION, BRAIDS

Subject Categories : Textiles
      Plastics

Distribution Statement : APPROVED FOR PUBLIC RELEASE