PRECIPITATED SILICA USED AS REINFORCING FILLER FOR ELASTOMERS
    61.
    发明申请
    PRECIPITATED SILICA USED AS REINFORCING FILLER FOR ELASTOMERS 审中-公开
    用于弹性体的增强填料的预处理二氧化硅

    公开(公告)号:US20150010757A1

    公开(公告)日:2015-01-08

    申请号:US14470098

    申请日:2014-08-27

    Applicant: RHODIA CHIMIE

    Abstract: The invention relates to a novel process for the preparation of precipitated silica which can be used as a reinforcing filler for elastomers. The invention also relates to novel precipitated silicas in the form of powder, granules or, preferably, substantially spherical beads, these silicas being characterized in that they have a BET specific surface of between 185 and 250 m2/g, a CTAB specific surface of between 180 and 240 m2/g, and a pore distribution such that the pore volume V2 made up of the pores with a diameter of between 175 and 275 Å represents less than 50% of the pore volume V1 made up of the pores with diameters of less than or equal to 400 Å, a pore volume (Vd1), made up of the pores with a diameter of less than 1 μm, of greater than 1.65 cm3/g, a fineness value (F.V.) of between 70 and 100 Å, and a content of fines (τf), after deagglomerability with ultrasound, of at least 50%.

    Abstract translation: 本发明涉及可用作弹性体增强填料的沉淀二氧化硅的制备方法。 本发明还涉及粉末,颗粒或优选基本上为球形珠形式的新型沉淀二氧化硅,其特征在于它们的BET比表面积为185-250m2 / g,CTAB比表面积介于 180和240m 2 / g,并且孔分布使得由直径在175和275之间的孔构成的孔体积V2小于由具有较小直径的孔组成的孔体积V1的50% 由直径小于1μm的孔,大于1.65cm 3 / g,细度值(FV)在70和100之间的孔组成的孔体积(Vd1),以及 在超声消解后的细粉(τf)含量至少为50%。

    MIXED FUNCTIONALIZED GRAPHENE STRUCTURE AND CORRESPONDING FIELD-EFFECT TRANSISTOR BIOSENSOR

    公开(公告)号:US20240182669A1

    公开(公告)日:2024-06-06

    申请号:US18285867

    申请日:2022-04-08

    Applicant: Attenbio S.L.

    CPC classification number: C08K3/042 G01N27/4145 G01N27/4146 C08K2201/002

    Abstract: The present invention relates a mixed functionalized graphene structure comprising a graphene surface; 1-pyrenebutanoic acid succinimidyl ester (PBASE) molecules; molecules of at least one type of polycyclic aromatic hydrocarbon (PAH) compounds; and biomolecules; wherein both the molecules of PBASE and the molecules of at least one type of PAH compounds are non-covalently linked to the graphene surface, wherein the biomolecules are linked to the PBASE molecules, and wherein the mixed functionalized graphene structure has a surface roughness (Rms) between around 0.01±1.00 μm and around 0.25±1.00 μm respect to the surface roughness (Rms) of non-functionalized graphene, wherein Rms is measured by atomic force microscopy (AFM). The present invention relates also to a method for preparing said mixed functionalized graphene structure, to a functionalized graphene structure obtainable by said method. Finally, the present invention relates to a Field-Effect Transistor (FET) chip comprising said mixed functionalized graphene structure, to an electronic device for biological sample analysis comprising said chip, to a method for electronic biological sample analysis by using said device and to the use of the mixed functionalized graphene structure in FET biosensors.

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