FIELD: chemistry.
SUBSTANCE: powder of mixed oxides contains an alkali metal oxide and an oxide of another metal in form of pore-free aggregates of primary particles and contains 0.005-5 wt % of at least one alkali metal oxide. The alkali metal oxide is distributed in the core and on the surface of primary particles. The said powder has BET specific area between 100 and 350 m2/g. The ratio of the absorption index of dibutylphthalate to specific surface area, expressed in m2/g, in the said powder is greater than or equal to the corresponding characteristic of the powder which contains only the oxide of the said other metal. The invention discloses a method of preparing and using powder of mixed oxides, as well as silicon rubber which contains this powder.
EFFECT: invention increases transparency of silicon rubber without adverse effect on other properties.
11 cl, 1 dwg, 2 tbl, 9 ex
| Title | Year | Author | Number |
|---|---|---|---|
| SILICON DIOXIDES WITH MODIFIED SURFACE | 2007 |
|
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| HYDROPHOBIC SILICON DIOXIDE AND ITS APPLICATION IN SILICON RUBBER | 2005 |
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| METHOD OF MAKING OPTICAL QUALITY OBJECTS FROM SUPERPURITY GLASS | 2006 |
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| POWDERY ALUMINIUM OXIDE, RECEIVED BY FLAMING HYDROLYSIS AND ALLOWING LARGE SURFACE AREA | 2004 |
|
RU2352527C2 |
| OBTAINING NANOSTRUCTURED MIXED LITHIUM AND ZIRCONIUM OXIDES BY SPRAY PYROLYSIS | 2020 |
|
RU2823631C1 |
| OBTAINING NANOSTRUCTURED MIXED LITHIUM AND ZIRCONIUM OXIDES BY SPRAY PYROLYSIS | 2020 |
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RU2825204C1 |
| POWDER OF METAL OXIDE, POWDER OF TITANIUM OXIDE, METHOD OF PRODUCING METAL OXIDE POWDER | 1994 |
|
RU2127221C1 |
