摘要:
The present invention relates to a hydrophobic, fumed silica which is obtained by milling a fumed silica which has fixed dimethylsilyl and/or monomethylsilyl groups on the surface due to silanization; and to a process for the preparation of the silica according to the invention, and to silicone rubber materials containing the silica according to the invention.
摘要:
The present invention relates to a hydrophobic, fumed silica which is obtained by reacting fumed silicas with cyclic polysiloxanes of the type —[O—SiR2]n—, where R is a C1 to C6 alkyl group and n is 3 to 9, and subsequently milling the silanized silicas obtained, and to a process for the preparation of the silica according to the invention, and to silicone rubber materials containing the silica according to the invention.
摘要翻译:本发明涉及一种疏水性热解法二氧化硅,其通过使热解法二氧化硅与[O-SiR 2] n - 型环状聚硅氧烷反应而获得,其中R是C1至C6烷基,n为3至9,随后 研磨所获得的硅烷化二氧化硅,以及制备本发明二氧化硅的方法和含有本发明二氧化硅的硅橡胶材料。
摘要:
The present invention relates to a hydrophobic, fumed silica which is obtained by milling a fumed silica which has fixed dimethylsilyl and/or monomethylsilyl groups on the surface due to silanization; and to a process for the preparation of the silica according to the invention, and to silicone rubber materials containing the silica according to the invention.
摘要:
The present invention relates to a hydrophobic, fumed silica which is obtained by reacting fumed silicas with cyclic polysiloxanes of the type —[O—SiR2]n—, where R is a C1 to C6 alkyl group and n is 3 to 9, and subsequently milling the silanized silicas obtained, and to a process for the preparation of the silica according to the invention, and to silicone rubber materials containing the silica according to the invention.
摘要翻译:本发明涉及一种疏水性热解法二氧化硅,其通过使热解法二氧化硅与[O-SiR 2] n - 型环状聚硅氧烷反应而获得,其中R是C1至C6烷基,n为3至9,随后 研磨所获得的硅烷化二氧化硅,以及制备本发明二氧化硅的方法和含有本发明二氧化硅的硅橡胶材料。
摘要:
The invention provides an adhesive comprising structurally modified, pyrogenically prepared silicas containing on their surface organosilane groups of the formula (I) SiCnH(2n+1), where n is 2 to 18. The invention further provides for the use of these structurally modified, pyrogenically prepared silicas in adhesives.
摘要:
Surface-modified, structurally modified fumed silicas Surface-modified, structurally modified fumed silicas are surface-modified with N-containing silicon compounds. They are used as fillers in resins and adhesives.
摘要:
RTV two-component silicone rubber which contains structurally modified hydrophobic fumed silicas which have vinyl groups fixed on the surface, further hydrophobic groups, such as trimethylsilyl and/or dimethylsilyl and/or monomethylsilyl groups, additionally being fixed on the surface.
摘要:
Surface-modified, pyrogenically prepared silica is prepared by subjecting the pyrogenically prepared silica, which is in the form of aggregates of primary particles and possesses a BET surface area of 150±15 m2/g, the aggregates having an average area of 12 000-20 000 nm2, an average equivalent circle diameter (ECD) of 90-120 nm and an average circumference of 1150-1700 nm, to surface-modification in a known way. It can be used as a filler for thickening liquid systems.
摘要:
Adhesive, comprising silanized, structurally modified, pyrogenically prepared silicas containing on their surface fixed vinyl groups or vinylsilyl groups, with hydrophobic groups, such as trimethylsilyl and/or dimethylsilyl and/or monomethylsilyl, additionally being fixed on the surface.
摘要:
Surface-modified silicas Surface-modified, highly structured, potassium oxide-doped silicas, characterized by BET surface area, m2/g: 25-400 average primary particle size, nm: 5-50 pH: 3-10 carbon content, % by weight: 0.1-10 potassium oxide content, % by weight: 0.000001-40 are prepared by subjecting a potassium oxide-doped silica to surface modification. It can be used as a filler in silicone rubber compositions.