Accession Number:

ADP004988

Title:

Suppression of Reactivity Changes in Poly bd (trade name) R-45M Resin

Descriptive Note:

Corporate Author:

ARCO CHEMICAL CO NEWTON SQUARE PA

Personal Author(s):

Report Date:

1985-01-01

Pagination or Media Count:

6.0

Abstract:

Poly bd R-45M resin, a hydroxyl terminated homopolymer of 1,3- butadiene, is a primary component in the binder for many solid propellant systems. The aging characteristics of this resin are such that its rate of reactivity with an isocyanate may increase during storage for prolonged time periods at ambient temperatures. As a result, the pot lives of propellant mixtures prepared from the same lot of Poly bd R-45M resin may differ significantly over period of months. Under certain processing conditions, this reactivity difference may pose problems for the formulator. The addition of triphenylphosphine to the Poly db R-45M resin has been found to prevent these reactivity changes.

Subject Categories:

  • Mechanics
  • Solid Propellant Rocket Engines

Distribution Statement:

APPROVED FOR PUBLIC RELEASE