摘要:
The invention relates to hydrophobicized precipitated silicas that possess an extremely high whiteness and extremely low moisture absorption. The hydrophobic precipitated silicas are prepared, inter alia, by coating with silicone oil and oxidative heat treatment.
摘要:
The invention relates to silicone rubber formulations comprising organopolysiloxanes and hydrophobicized silicas, which possess an extremely high level of whiteness.
摘要:
The stability of polymers against the action of heat and flames is improved in that a pyrogenically produced titanium dioxide containing iron oxide is added to the polymers.
摘要:
Hydrophobic, pyrogenically produced oxides having a ratio of dimethylsilyl groups to monomethylsilyl groups of 100:0 to 50:50 are prepared by using siloxanes or methylsiloxane mixtures D3 to D9 as hydrophobing agent.
摘要:
Pyrogenically prepared silicon dioxide is compacted to give crusts, in that it is subject to preliminary de-aeration, and is compacted to give crusts, and the crusts are broken and, if appropriate, classified. The tamped bulk density (to DIN EN ISO 787-11) of the silicon dioxide compacted to give crusts is from 185 to 700 g/l. It can be used as filler in rubber mixtures.
摘要翻译:热解制备的二氧化硅被压实以产生结壳,因为它需要进行初步的除气,并且被压实以产生结壳,并且结壳被破坏,并且如果合适的话进行分类。 被压实以产生结壳的二氧化硅的夯实堆密度(符合DIN EN ISO 787-11)为185至700g / l。 它可以用作橡胶混合物中的填料。
摘要:
Pyrogenically prepared silicon dioxide is compacted to give crusts, in that it is subject to preliminary de-aeration, and is compacted to give crusts, and the crusts are broken and, if appropriate, classified. The tamped bulk density (to DIN EN ISO 787-11) of the silicon dioxide compacted to give crusts is from 185 to 700 g/l. It can be used as filler in rubber mixtures.
摘要翻译:热解制备的二氧化硅被压实以产生结壳,因为它需要进行初步的除气,并且被压实以产生结壳,并且结壳被破坏,并且如果合适的话进行分类。 被压实以产生结壳的二氧化硅的夯实堆密度(符合DIN EN ISO 787-11)为185至700g / l。 它可以用作橡胶混合物中的填料。
摘要:
The invention relates to hydrophobicized precipitated silicas that possess an extremely high whiteness and extremely low moisture absorption. The hydrophobic precipitated silicas are prepared, inter alia, by coating with silicone oil and oxidative heat treatment.
摘要:
Rubber mixtures are prepared by using, alongside the other constituents, pyrogenically prepared silicon dioxide in the form of crusts whose tamped bulk density (to DIN EN ISO 787-11) is from 185 to 700 g/l.
摘要翻译:橡胶混合物通过与其他成分一起使用热解法制备的形式的二氧化硅,其夯实堆积密度(根据DIN EN ISO 787-11)为185至700g / l,制备。
摘要:
Rubber mixtures are prepared by using, alongside the other constituents, pyrogenically prepared silicon dioxide in the form of crusts whose tamped bulk density (to DIN EN ISO 787-11) is from 185 to 700 g/l.
摘要翻译:橡胶混合物通过与其他成分一起使用热解法制备的形式的二氧化硅,其夯实堆积密度(根据DIN EN ISO 787-11)为185至700g / l,制备。