Accession Number : AD0783108

Title :   Applications de la Sonde Moleculaire aux Composites a Teneur Elevee en Solides. I. Determination des Temperatures de Transition Vitreuse et Etude des Phenomenes de Surface (Applications of the Molecular Probe to Composites of High Solid Content. I. Determination of Glass Transition Temperature and Study of Surface Phenomena),


Personal Author(s) : Perrault,G. ; Tremblay,M. ; Bedard,M. ; Duchesne,G. ; Voyzelle,R.

Report Date : 12 JUN 1973

Pagination or Media Count : 7

Abstract : The molecular probe technique has been shown to be useful for measuring the glass transition temperature of a highly-filled composite, or of a polybutadiene prepolymer covering surfaces of varying types. The measured T(g) of 193K is independent of the curing stage as well as of the nature of functional groups. Transitions between 349 and 364K were detected in a Fe2O3-containing composite, showing the general applicability of the technique. Studies of the slope of the curve relating the logarithm of the specific retention volume to the reciprocal of the absolute temperature can lead to useful information concerning the orientation of the polybutadiene prepolymer at the polymer-solid interface. (Author)

Descriptors :   *Composite materials, Transition temperature, Polybutadiene, Canada

Subject Categories : Physical Chemistry
      Laminates and Composite Materials

Distribution Statement : APPROVED FOR PUBLIC RELEASE