Accession Number : AD0842721

Title :   Application of Photochromic and Thermochromic Compounds for Monitoring Cure Process in Resin Matrix Systems.

Descriptive Note : Rept. for Jan 66-Dec 67,

Corporate Author : AIR FORCE MATERIALS LAB WRIGHT-PATTERSON AFB OH

Personal Author(s) : Allinkov, Sidney

Report Date : SEP 1968

Pagination or Media Count : 31

Abstract : The feasibility of incorporation of photochromic and thermochromic compounds in addition to other dyes in reinforced plastics as a means of monitoring the cure process in reinforced plastic matrix materials was established. These compounds, when incorporated in a resin matrix, show changes in color, absorbance, transmittance, or reflectance, dependent upon the time and temperatures history of the cure cycle. The resins investigated were a heat cured epoxy system, and an asbestos filled phenolic compound. (Author, modified-PL).

Descriptors :   *PHOTOCHROMISM), (*REINFORCED PLASTICS, NONDESTRUCTIVE TESTING), (*NONDESTRUCTIVE TESTING, DYES, EPOXY RESINS, PHENOLIC PLASTICS, AGING(MATERIALS), REINFORCING MATERIALS, ASBESTOS, POLYMERIZATION, CROSSLINKING(CHEMISTRY), OPTICAL ANALYSIS, ABSORPTION SPECTRA, FLUORESCENCE.

Subject Categories : Polymer Chemistry
      Laminates and Composite Materials
      Plastics

Distribution Statement : APPROVED FOR PUBLIC RELEASE