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    Method for preparing a superhydrophobic self-cleaning surface
    2.
    发明授权
    Method for preparing a superhydrophobic self-cleaning surface 有权

    公开(公告)号：US10512934B2

    公开(公告)日：2019-12-24

    申请号：US16178013

    申请日：2018-11-01

    Applicant: KING FAHD UNIVERSITY OF PETROLEUM AND MINERALS

    Inventor： Asif Matin ,  Necar Merah

    IPC: B05D5/08 ,  B05D3/14

    Abstract: A superhydrophobic and self-cleaning surface including a substrate and a superhydrophobic layer. The superhydrophobic layer having a reacted form of octadecyltrichlorosilane. The octadecyltrichlorosilane is disposed on and crosslinked to a surface of the substrate via surface hydroxyl groups. The surface exhibits a rms roughness of 40 nm to 60 nm, a water contact angle of 155° to 180°, and a contact angle hysteresis of less than 15°. A method of preparing the substrate with a superhydrophobic and self-cleaning surface including treating a substrate with a plasma treatment, contacting the substrate with water or an alcohol to form an hydroxylated substrate, contacting the hydroxylated substrate with a solution of octadecyltrichlorosilane in an alkane solvent at a concentration in the range of 0.05 M to 0.3 M, and drying the solution on to the substrate under ambient air to form the superhydrophobic and self-cleaning surface on the substrate.

    Method for preparation of epoxy-clay nanocomposites
    4.
    发明授权
    Method for preparation of epoxy-clay nanocomposites 有权
    环氧 - 粘土纳米复合材料的制备方法

    公开(公告)号：US09334387B2

    公开(公告)日：2016-05-10

    申请号：US14023458

    申请日：2013-09-10

    Applicant: KING FAHD UNIVERSITY OF PETROLEUM AND MINERALS ,  KING ABDULAZIZ CITY FOR SCIENCE AND TECHNOLOGY

    Inventor： Muneer Abdulrahman Mohammed Al-Qadhi ,  Necar Merah

    IPC: C08K3/34 ,  C08L79/04 ,  C08J3/20 ,  C08L61/00 ,  C08L61/04 ,  C08L61/06 ,  C08L63/00

    CPC classification number: C08K3/346 ,  C08J3/203 ,  C08J2363/00 ,  C08L61/00 ,  C08L61/04 ,  C08L61/06 ,  C08L63/00 ,  C08L79/04

    Abstract: The method for the preparation of epoxy-clay nanocomposites uses high shear mixing of Nanomer I.30 E nanoclay into the diglycidyl ether of bisphenol A (DGEBA) epoxy by optimization of high shear mixing speeds, mixing times and degassing temperature. The results showed that the optimum high shear mixing speed and mixing time for optimal clay dispersion were 6000 rpm and 60 min, respectively. Increasing the degassing temperature from 65° C. to 100° C. for the first two hours of the degassing process enhanced nanoclay dispersion, resulting in nanocomposites with a morphology dominated by disorder intercalation with some exfoliated structure. This enhancement in nanocomposite morphology can be attributed to the improvement in epoxy diffusion into the intergallery spacing between clay layers due to temperature rise.

    Abstract translation: 制备环氧 - 粘土纳米复合材料的方法是通过优化高剪切混合速度，混合时间和脱气温度，将纳米粒子I.30E纳米粘土高效剪切混合到双酚A（DGEBA）环氧树脂的二缩水甘油醚中。 结果表明，最佳高剪切混合速度和最佳粘土分散混合时间分别为6000rpm和60min。 在脱气过程的前两个小时，将脱气温度从65℃提高至100℃，增强了纳米粘土分散体，导致纳米复合材料具有由具有一些剥离结构的无序插层主导的形态。 纳米复合物形态的这种增强可以归因于由于温度升高，环氧树脂扩散到粘土层之间的间距间的改善。

    GLASS SUBSTRATE WITH SUPERHYDROPHOBIC SELF-CLEANING SURFACE
    5.
    发明申请
    GLASS SUBSTRATE WITH SUPERHYDROPHOBIC SELF-CLEANING SURFACE 审中-公开

    公开(公告)号：US20190070632A1

    公开(公告)日：2019-03-07

    申请号：US16177918

    申请日：2018-11-01

    Applicant: King Fahd University of Petroleum and Minerals

    Inventor： Asif Matin ,  Necar Merah

    IPC: B05D5/08 ,  B05D3/14

    Abstract: A superhydrophobic and self-cleaning surface including a substrate and a superhydrophobic layer. The superhydrophobic layer having a reacted form of octadecyltrichlorosilane. The octadecyltrichlorosilane is disposed on and crosslinked to a surface of the substrate via surface hydroxyl groups. The surface exhibits a rms roughness of 40 nm to 60 nm, a water contact angle of 155° to 180°, and a contact angle hysteresis of less than 15°. A method of preparing the substrate with a superhydrophobic and self-cleaning surface including treating a substrate with a plasma treatment, contacting the substrate with water or an alcohol to form an hydroxylated substrate, contacting the hydroxylated substrate with a solution of octadecyltrichlorosilane in an alkane solvent at a concentration in the range of 0.05 M to 0.3 M, and drying the solution on to the substrate under ambient air to form the superhydrophobic and self-cleaning surface on the substrate.

    Superhydrophobic and self-cleaning substrate and a method of coating
    6.
    发明授权
    Superhydrophobic and self-cleaning substrate and a method of coating 有权

    公开(公告)号：US10150140B2

    公开(公告)日：2018-12-11

    申请号：US15387142

    申请日：2016-12-21

    Applicant: KING FAHD UNIVERSITY OF PETROLEUM AND MINERALS

    Inventor： Asif Matin ,  Necar Merah

    IPC: B05D5/08 ,  B05D3/14

    Abstract: A superhydrophobic and self-cleaning surface including a substrate and a superhydrophobic layer. The superhydrophobic layer having a reacted form of octadecyltrichlorosilane. The octadecyltrichlorosilane is disposed on and crosslinked to a surface of the substrate via surface hydroxyl groups. The surface exhibits a rms roughness of 40 nm to 60 nm, a water contact angle of 155° to 180°, and a contact angle hysteresis of less than 15°. A method of preparing the substrate with a superhydrophobic and self-cleaning surface including treating a substrate with a plasma treatment, contacting the substrate with water or an alcohol to form an hydroxylated substrate, contacting the hydroxylated substrate with a solution of octadecyltrichlorosilane in an alkane solvent at a concentration in the range of 0.05 M to 0.3 M, and drying the solution on to the substrate under ambient air to form the superhydrophobic and self-cleaning surface on the substrate.

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