URETHANE-UREA ELASTOMERS FOR LOW-TEMPERATURE, OIL AND FUEL RESISTANT APPLICATIONS.

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Abstract:

Millable polyether urethane-urea elastomers having good low-temperature flexibility and oil resistance were prepared on a semiplant scale and evaluated. These elastomers were also compounded and evaluated in specific end-item applications. Results showed that semiplant quantities and scaled-up processing methods can duplicate results obtainable on a laboratory scale. These elastomers had poor resistance to fuels high 40 percent or greater in aromatic content. Various thioether, chloro-substituted ether, and pyridyl modified glycols were evaluated in urethane-urea millable gum preparation to improve aromatic fuel resistance while retaining desirable properties such as low-temperature flexibility and tensile strength. Thioethers offer considerable promise but further work with thioethers, chloro - and fluoro-substituted ethers, and various glycol blends is considered necessary before the potential and the shortcomings of these materials, in preparation of a fuel-resistant elastomer, can be realized. Author

Author(s):
Veroeven, Wilbur M.
Author Organization(s):
ARMY WEAPONS COMMAND ROCK ISLAND ILL SCIENCE AND TECHNOLOGY LAB
Descriptive Note:
Technical rept.,
Pagination:
0018

Security Markings

DOCUMENT & CONTEXTUAL SUMMARY

Distribution:
Approved For Public Release

RECORD

Collection: TR
Identifying Numbers
Report Number(s):
RIA-69-102
Project Number(s):
DA-1-C-024401-A-329
Monitor Series:
69-102
 Subject Terms
Communities of Interest:
No COI(s) Identified
Descriptor(s):
*ISOCYANATES, *GLYCOLS, *FUELS, ELASTOMERS, ELASTOMERS, UREA, DEGRADATION, OILS, HYDROCARBONS, ETHERS, HALOGEN COMPOUNDS, COLD WEATHER TESTS, SYNTHESIS(CHEMISTRY), ORGANIC SULFUR COMPOUNDS, SULFIDES, CHLORINE COMPOUNDS
Field(s)/Group(s):
Elastomers and Rubber
Keyword(s):
FUEL RESISTANT ELASTOMERS, LOW TEMPERATURE ELASTOMERS, URETHANE UREA ELASTOMERS
Report Date:
1969 Mar 01