FIELD: chemistry.
SUBSTANCE: invention relates to production of grease for working with rocket fuel components in a wide temperature range, high pressure and high vacuum. The grease contains perfluoropolyether which is a product of copolymerisation of tetrafluoroethylene with oxygen, organosilca gel - trimethylsilyl derivative of silicic acid gel, teflon T-4-95 and an alkylamine salt of perfluoropolyoxaalkylcarboxylic acids (Asol F), with the following ratio of components, wt %: organosilica gel 2.0-3.6; teflon T-4-95 1.3-3.0; (Asol F) 0.2-0.4; perfluoropolyether - up to 100.
EFFECT: provision for application temperature range from minus 120°C to plus 250°C and possibility of use in high vacuum conditions (up to 10-8 Torr) and high pressure (up to 500 atm).
4 tbl
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FROST-RESISTANT GREASE | 2016 |
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RU2622398C1 |
ORGANOSILICON LUBRICANT FOR DEEP VACUUM | 2019 |
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RU2702663C1 |
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RU2397181C2 |
0 |
|
SU308058A1 |
Authors
Dates
2011-02-27—Published
2009-09-03—Filed