Accession Number : AD0734322

Title :   Ethylene-Propylene Rubbers as Antiozonants.

Descriptive Note : Technical rept.,

Corporate Author : ARMY WEAPONS COMMAND ROCK ISLAND ILL RESEARCH DEVELOPMENT AND ENGINEERING DIRECTORATE

Personal Author(s) : Ossefort,Z. T. ; Bergstrom,E. W.

Report Date : AUG 1968

Pagination or Media Count : 39

Abstract : The primary purpose of the work was to define the extent of usefulness and limitations of ethylene-propylene copolymer and terpolymer rubbers (EP) as antiozonants for diene elastomers. A secondary objective was to learn the mechanism whereby these rubbers protect. Vulcanizates were prepared based on blends of EPM and EPDM rubbers with SBR (emulsion and solution), NBR, cis-trans polybutadiene and natural rubber and their resistance to ozone cracking determined. Peroxide, radiation, and sulfur cures were investigated. (Author)

Descriptors :   (*ANTIOXIDANTS, *ELASTOMERS), OZONE, DIENES, VULCANIZATES, NITRILE RUBBER, STYRENE PLASTICS, POLYETHYLENE PLASTICS, CRACKS, MECHANICAL PROPERTIES

Subject Categories : Elastomers and Rubber

Distribution Statement : APPROVED FOR PUBLIC RELEASE