The invention provides composite silicon dioxide as well as a preparation method and application thereof. The composite silicon dioxide is a combination of hydrophilic fumed silica and hydrophobic fumed silica, the mass of the hydrophobic fumed silica is 4wt%-8wt% of the mass of the hydrophilic fumed silica; the hydrophobic fumed silica is obtained by modifying the hydrophilic fumed silica. The surface of hydrophilic fumed silica is hydrophilic and oleophobic, so that the hydrophilic fumed silica is directly used for filling a rubber material and is difficult to play a reinforcing role of the rubber material; part of hydrophilic fumed silica needing to be added into a rubber material is modified into hydrophobic fumed silica, wettability, dispersity and interface bonding strength are improved, and the reinforcing effect of composite silica is improved.

    本发明提供了一种复合二氧化硅及其制备方法与应用,所述复合二氧化硅为亲水型气相二氧化硅与疏水型气相二氧化硅的组合;所述疏水型气相二氧化硅的质量为亲水型气相二氧化硅质量的4wt%‑8wt%;所述疏水型气相二氧化硅由所述亲水型气相二氧化硅改性得到。亲水型气相二氧化硅的表面呈亲水疏油性,直接用于橡胶材料的填充,难以发挥橡胶材料的补强作用;本发明将需要添加至橡胶材料中的部分亲水型气相二氧化硅改性为疏水型气相二氧化硅,改善了浸润性、分散性以及界面结合强度,提高了复合二氧化硅的补强作用。


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    Title :

    Composite silicon dioxide as well as preparation method and application thereof


    Additional title:

    一种复合二氧化硅及其制备方法与应用


    Contributors:
    CHEN NANFEI (author) / WANG MINGHE (author) / CHEN CHEN (author) / LU AIPING (author) / CHEN JIASHU (author) / SHI TONG (author)

    Publication date :

    2025-04-18


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B60C VEHICLE TYRES , Fahrzeugreifen / C08L COMPOSITIONS OF MACROMOLECULAR COMPOUNDS , Massen auf Basis makromolekularer Verbindungen / C08K Verwendung von anorganischen oder nichtmakromolekularen organischen Stoffen als Zusatzstoffe , USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES AS COMPOUNDING INGREDIENTS



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