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    Nano silica surface modification

    • Last Update: 2021-11-15
    • Source: Internet
    • Author: User
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    Nano silica surface modification

    The surface of nano-SiO 2 is hydrophilic, which leads to poor compatibility when it is combined with organic substances such as rubber, which is difficult to mix in and disperse


    ① Heat treatment

    After heat treatment, the moisture absorption of the silica surface is low, and the moisture absorption of the filled product is also significantly reduced.


    ②Chemical modification

    The surface active silanol group of SiO 2 can chemically react with organic silane, alcohol and other substances to improve its affinity and reactivity with polymers


    a.


    b.


    Related links: Physical and chemical properties and preparation methods of nano-silica

     

     

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