Improved mechanical properties and ozone resistance of radiation-cured SBR. Final report, Dec 88-Jun 91. [Styrene Butadiene Rubber]
This report is a continuation and extension of the work of the earlier Army contract, where the superiority of the electron beam cured styrene butadiene rubber (SBR) tank pads to the sulfur cured pads was demonstrated. The focus of the present study is the investigation of the extraordinary ozone resistance of our radiation cured SBR, and also on possible alternatives for SBR, butadiene rubber (BR) in particular, as a tank pad compound. Base formulations of a fully sulfur cured system were established with 5% reproducibility, and results were confirmed by mechanical properties measurements on identical formulations from Belvoir Research Development and Engineering Center (BRDEC). Constant mechanical properties as a function of exposure to ozone indicate either competitive cross-linking and scissioning reactions or a 'protective' effect caused by higher terminal vinyl concentrations in the radiation cured formulations.
- Research Organization:
- Maryland Univ., College Park, MD (United States). Lab. for Radiation and Polymer Science
- OSTI ID:
- 6370292
- Report Number(s):
- AD-A-241074/4/XAB; CNN: DAAL04-88-K-0038
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
36 MATERIALS SCIENCE
ELASTOMERS
MECHANICAL PROPERTIES
RADIATION CURING
BUTADIENE
CHEMICAL COMPOSITION
COMPETITION
CONTRACTS
CORROSION RESISTANCE
CROSS-LINKING
ELECTRON BEAMS
OZONE
STYRENE
SULFUR
SYNTHETIC MATERIALS
WEAR RESISTANCE
ALKYLATED AROMATICS
AROMATICS
BEAMS
CHEMICAL RADIATION EFFECTS
CHEMICAL REACTIONS
CURING
DIENES
ELEMENTS
HYDROCARBONS
LEPTON BEAMS
MATERIALS
NONMETALS
ORGANIC COMPOUNDS
PARTICLE BEAMS
POLYENES
POLYMERIZATION
POLYMERS
RADIATION EFFECTS
070205* - Radiation Sources- Industrial Applications
Radiation Processing- (1987-)
360605 - Materials- Radiation Effects
360603 - Materials- Properties