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    METAL ANTICORROSIVE COATING, PREPARATION METHOD THEREFOR, AND USE THEREFOR
    1.
    发明申请
    METAL ANTICORROSIVE COATING, PREPARATION METHOD THEREFOR, AND USE THEREFOR 有权

    公开(公告)号：US20210188699A1

    公开(公告)日：2021-06-24

    申请号：US17054177

    申请日：2019-11-05

    申请人： Zhejiang University

    发明人： Dongming Yan ,  Yi Liu ,  Zhihao Huang

    IPC分类号： C03C8/14 ,  C23D5/04

    摘要： The invention discloses a metal anticorrosive coating. The coating is an inorganic coating used for metal anticorrosion. This coating has a double-layer structure, including an outer enamel coating and an inner base oxide coating. Meanwhile, the content of the base metal oxide decreases from the inner layer to the outer layer, which causes the thermal expansion coefficient of the coating to increase from the inner layer to the outer layer, ensures that the overall thermal expansion coefficient of the coating is coordinate with various base metals. The composition of the outer layer enamel coating includes: by weight, 1-40 parts of silicon, 1-30 parts of sodium, 1-20 parts of potassium, 2-20 parts of calcium, 0.5-15 parts of fluorine, 0.3-10 parts of cobalt, 0.2-10 parts of nickel, 1-18 parts of boron, 0.5-10 parts of phosphorus, 0.1-8 parts of magnesium, and the rest is oxygen; the composition of the base oxide coating of the inner layer includes the base metal and oxygen. A preparation process of a double-layer dense metal anticorrosive coating formed by low-temperature sintering is also disclosed, including the following steps: 1) grinding; 2) preparation of mixture; 3) grinding; 4) high temperature reaction; 5) grinding; 6) coating; 7) sintering. The coating of the invention has the advantages of improving the corrosion resistance by more than 14 times, has a high ductility which can be coordinated with the reinforcing steel bar in tensile deformation, has a thermal expansion coefficient gradient which can be applied to different metals and different types of the same metal.

    ANTI-CORROSION COATING WITH LOW THROUGH-HOLE RATIO FOR STEEL REBARS AND COATING METHOD
    2.
    发明申请
    ANTI-CORROSION COATING WITH LOW THROUGH-HOLE RATIO FOR STEEL REBARS AND COATING METHOD 审中-公开

    公开(公告)号：US20180298201A1

    公开(公告)日：2018-10-18

    申请号：US15747762

    申请日：2017-03-01

    申请人： Zhejiang University

    发明人： Dongming Yan ,  Yi Liu ,  Luodong Zhang ,  Haibo Gao

    IPC分类号： C09D5/08 ,  B05D1/18 ,  B05D3/00 ,  B05D3/02 ,  B05D7/14 ,  C09D7/43 ,  C09D1/04

    摘要： The invention discloses an anti-corrosion coating with low through-hole ratio for steel rebars. The composition of coating includes 45-70 weight percent feldspar powder, 15-30 weight percent borax, 10-20 weight percent calcium tetraborate, 5-15 weight percent fluorspar, 4-8 weight percent clay, 1-10 weight percent adhesion agent, and 1-1.5 weight percent thickener. This invention also discloses a coating method using above-mentioned anti-corrosion coating. The method includes seven steps: 1. dry mixing, 2. wet mixing, 3. pretreatment, 4. coating, 5. baking, 6. sintering, 7. cooling down at room temperature. The coating of this invention has outstanding anti-corrosion resistance, extremely high toughness, and good durability.

    TWO-LAYERED DENSE METAL ANTICORROSIVE COATING FORMED BY LOW-TEMPERATURE SINTERING, PREPARATION METHOD THEREFOR, AND USE THEREOF
    3.
    发明申请
    TWO-LAYERED DENSE METAL ANTICORROSIVE COATING FORMED BY LOW-TEMPERATURE SINTERING, PREPARATION METHOD THEREFOR, AND USE THEREOF 有权

    公开(公告)号：US20210371672A1

    公开(公告)日：2021-12-02

    申请号：US17054773

    申请日：2019-05-12

    申请人： Zhejiang University

    发明人： Dongming Yan ,  Yi Liu ,  Zhihao Huang

    IPC分类号： C09D5/08 ,  C09D1/00 ,  C09D7/61 ,  C09D7/63 ,  C23C24/08 ,  C23C28/00

    摘要： The invention discloses a two-layered dense metal anticorrosive coating formed by low temperature sintering with an outer layer of an inorganic ceramic coating and an inner layer of a base oxide coating. The raw materials comprise the following components by weight: 50-60 weight percent silicone compound, 20-35 weight percent thermal expansion coefficient adjuster, 3-7 weight percent binder, 5-10 weight percent adhesion adjuster, and 1-4 weight percent catalyst. A preparation process for the two-layered dense metal anticorrosive coating formed by low-temperature sintering comprises the following steps: 1) grinding, 2) wet mixing, 3) drying, 4) grinding, 5) coating, 6) sintering. The coating of this invention has high adhesion, outstanding anti-corrosion resistance, and good durability.