Accession Number:

AD0609003

Title:

IMPROVEMENT OF HIGH TEMPERATURE PROPERTIES OF A FLUOROELASTOMER-PART II,

Descriptive Note:

Corporate Author:

ROCK ISLAND ARSENAL ILL

Personal Author(s):

Report Date:

1964-10-13

Pagination or Media Count:

16.0

Abstract:

This report covers results obtained in a study to improve the retention of physical properties of vinylidene fluoridehexafluoropropylene FPM vulcanizates when measured at high temperatures. Several chemicals were evaluated as curatives for FPM, three being found effective. Calcium oxide was effective in eliminating the porosity associated with thick section post curing of FPM. Several phenolic and melamine resins were evaluatedd for improving the properties of FPM when measured at high temperatures. None proved to be effective. The use of carbon and graphite fibers in FPM was found to afford improved high temperature strength. The heat treatment of FPM and carbon black in the presence of N-methyl-N, 4-dinitrosoaniline improved the high temperature properties of FPM. The use of high temperature press cures 400F. and above did not improve the properties of FPM at high temperatures. Author

Subject Categories:

Distribution Statement:

APPROVED FOR PUBLIC RELEASE