METHOD FOR PRODUCING HYDROPHOBIC HEAT INSULATION MATERIAL

    公开(公告)号:CA3030383A1

    公开(公告)日:2018-02-01

    申请号:CA3030383

    申请日:2017-07-13

    Abstract: Method for producing a heat-insulating mixture containing hydrophobic silica, wherein a) a powderous carrier material selected from the group consisting of precipitated silicas, SiCh aerogels, perlites and mixtures thereof is coated with a liquid silicon compound having at least one alkyl group and a boiling point of less than 200°C, and b) the powderous carrier material thus coated with the liquid silicon compound is mixed with a composition comprising a pulverulent hydrophilic fumed silica and the mixture is treated thermally at more than 40°C, and c) subsequently any unreacted silicon compound is removed from the thermally treated mixture to give the heat-insulating mixture containing hydrophobic silica.

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