FIELD: chemistry.
SUBSTANCE: invention relates to methods of producing fluororubber compositions, fluororubber compositions and moulded articles. Disclosed is a fluororubber composition, suitable for compression moulding, excluding piston extrusion moulding, containing: fluororubber A1 having a history with heating to its melting temperature or higher; and fluororubber B1 having no history with heating to its melting point or higher. Fluororubber composition contains a coarse powder having a particle size of 5 mcm or more, and microparticles having a primary particle size of 1 mcm or less. Microparticles are sorbed on the surface of the coarse powder, wherein 60% or less of the surface of the coarse powder remains open. Fluorine rubber A1 and fluorine rubber B1 are polytetrafluoroethylene.
EFFECT: present invention provides a fluororubber composition and a method for production thereof, having less colouring and excellent tensile properties.
19 cl, 1 tbl, 6 ex
| Title | Year | Author | Number |
|---|---|---|---|
| FLUORORUBBER COMPOSITION AND MOULDED BODY | 2022 |
|
RU2840776C2 |
| METHOD OF PRODUCING FLUOROPOLYMER COMPOSITION | 2022 |
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RU2824594C1 |
| METHOD OF PRODUCING FLUOROPOLYMER COMPOSITION | 2022 |
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| METHOD OF PRODUCING FLUOROPOLYMER, FLUOROPOLYMER AND LIQUID AQUEOUS DISPERSION | 2022 |
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| FLUORINE RESIN COMPOSITION AND MOULDED ARTICLE | 2022 |
|
RU2840494C2 |
| METHOD FOR PRODUCTION OF POLYTETRAFLUOROETHYLENE AND COMPOSITION CONTAINING POLYTETRAFLUOROETHYLENE | 2021 |
|
RU2841587C1 |
| METHOD FOR SUBSTRATE COATING BY FLUOROPOLYMER DISPERSION | 2005 |
|
RU2363549C2 |
| POLYTETRAFLUOROETHYLENE POWDER, ELECTRODE BINDER, ELECTRODE MIXTURE, ELECTRODE AND SECONDARY STORAGE BATTERY | 2022 |
|
RU2839118C2 |
| METHOD OF PRODUCING ELASTIC FLUOROCOPOLYMER AND CROSS LINKED FLUORO-RUBBER | 2007 |
|
RU2412951C2 |
| METHOD OF PRODUCING AQUEOUS DISPERSION OF FLUORINE-CONTAINING ELASTOMER AND COMPOSITION | 2021 |
|
RU2819636C1 |
