Accession Number:

ADA059189

Title:

Low-Temperature Differential Scanning Calorimetry of Polysiloxanes

Descriptive Note:

Interim rept.

Corporate Author:

AEROSPACE CORP EL SEGUNDO CA IVAN A GETTING LABS

Report Date:

1978-08-22

Pagination or Media Count:

33.0

Abstract:

Low-temperature differential scanning calorimetry DSC was used to determine the temperature region of glass formation or the crystallization of polysiloxanes or both. Research- and commercial-grade polysiloxanes were characterized by DSC to determine where significant physical property changes, such as embrittlement or shrinkage, had occurred. The effect of the thermal history, cooling-heating rate, and molecular weight distribution on thermodynamic behavior was investigated. An illustrative example of the failure analysis of a low-temperature adhesive used on a solar panel is included.

Subject Categories:

  • Ceramics, Refractories and Glass
  • Crystallography

Distribution Statement:

APPROVED FOR PUBLIC RELEASE