Preparation method of organic sericite for anticorrosive coating

A technology of organic sericite and anti-corrosion coating, which is applied in anti-corrosion coatings, chemical instruments and methods, dyeing organosilicon compound treatment, etc., can solve the problem of complex graft modification process by chemical means and weak adsorption strength of physical coating modification , The improvement effect needs to be strengthened, etc., to achieve the effect of high degree of automation, shortened reaction time, and large product output

Pending Publication Date: 2020-10-09
NORTHEASTERN UNIV
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  • Description
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  • Application Information

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Problems solved by technology

Its shortcoming is that the grafting modification process by chemical means is complicated, and it is not easy to be applied industrially; the adsorption strength of physical coating modification is weak, and the improvement effect needs to be strengthened

Method used

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  • Preparation method of organic sericite for anticorrosive coating
  • Preparation method of organic sericite for anticorrosive coating
  • Preparation method of organic sericite for anticorrosive coating

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Embodiment 1

[0024] In the present embodiment, the specific steps of the preparation method of the organic sericite for anti-corrosion coating are as follows:

[0025] (1) Take the organic resin and add sericite filler to the organic resin, move it into the grinding tank after mixing and stirring evenly, and use high-temperature mechanical ball milling method to carry out organic treatment, and the obtained product is obtained after centrifugation, suction filtration and drying. Surface organic sericite powder;

[0026] (2) Mix the surface-organized mica powder in step (1) with film-forming resin, additives, diluents and other fillers, and mix them mechanically to obtain component A, and at the same time take component B curing agent and component A ultrasonic stirring mixes, and makes described surface organic mica anticorrosion coating;

[0027] In step (1), the organic resin includes, but is not limited to, one of epoxy resin, silicone resin, and organic fluorine resin.

[0028] In st...

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Abstract

The invention discloses a preparation method of organic sericite for an anticorrosive coating. The preparation method comprises the following steps that sericite and organic epoxy resin are mixed, themixture is added into a ball mill to be subjected to high-temperature ball milling, the temperature is controlled to range from 160 DEG C to 200 DEG C, the rotating speed is controlled to range from400 r / min to 600 r / min, and the time ranges from 3 h to 6 h; centrifuging, suction filtration and drying are performed the obtained product to obtain surface organic sericite powder; organic sericitepowder is mixed with epoxy resin, a diluent and an additive to be mechanically stirred to obtain a component A, and the component A is mixed with a component B curing agent to obtain the sericite anticorrosive coating with an organic surface. The process flow is simplified, the reaction time is shortened, and the method is environmentally friendly, high in automation degree, firm in surface grafting and suitable for industrial mass production.

Description

technical field [0001] The invention relates to the field of metal corrosion protection, in particular to a method for preparing organic sericite for anti-corrosion coatings. Background technique [0002] Sericite, a natural two-dimensional sheet silicate, has become one of the most widely used inorganic fillers in the field of metal corrosion protection because of its good physical stability, anti-aging properties and low cost. However, sericite is hydrophobic and oleophobic. Directly adding sericite to organic coatings will result in poor dispersion. The resulting interface problems will lead to the formation of a large number of pores and cracks after the coating is formed, which will not enhance the compactness of the coating. Sex and the role of shielding corrosive media. [0003] At present, in view of the poor interface compatibility between mica and organic resins, various physical and chemical methods are often used for surface coating or surface grafting modificat...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D5/08C09C1/40C09C3/10C09C3/12
CPCC09C1/405C09C3/006C09C3/10C09C3/12C09D5/08
Inventor 孟凡帝蔡亚慧刘莉崔宇郑宏鹏王福会
Owner NORTHEASTERN UNIV
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