ROCKET LINER PROGRAM

Abstract

INVESTIGATION OF MEANS OF CURING METALLOXANE POLYMERS RESULTED IN THE FINDING THAT VINYLCONTAINING COPOLYMERS CAN BE EFFECTIVELY CURED WITH SILICONE HYDRIDES. Free radical catalysts, such as organic peroxides, were effective with vinyl-containing copolymers and neither free radical catalysts nor silicone hydrides effect cures with stannosiloxanes not containing vinyl groups. Candidate vinyl-containing stannosiloxane gums and blends of these copolymers with nitrile rubbers and phenolic resins were compounded with appropriate fillers and cured with a silicon hydride. These compositions were molded into test slabs and evaluated for insulative capability by the standard torch test. The results of these tests, in terms of insulation index and erosion rate, showed that cured stannosiloxanes were substantially superior to methylsilicone rubbers and significantly better than methylphenylsilicone rubbers. (Author)

Document Details

Document Type
Technical Report
Publication Date
Jan 01, 1962
Accession Number
AD0274393

Entities

People

  • A.l. Landis
  • S.b. Eglin

Tags

Communities of Interest

  • Weapons Technologies

DTIC Thesaurus Topics

  • Catalysts
  • Chemical Compounds
  • Copolymers
  • Free Radicals
  • Insulation
  • Macromolecules
  • Molecules
  • Nitrile Rubber
  • Peroxides
  • Polymers
  • Rubber
  • Standards

Readers

  • Organic Chemistry
  • Polymer Science and Engineering.

Technology Areas

  • Microelectronics