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Epoxy primer coating

A technology of epoxy primer and coating, applied in the field of coatings, can solve the problems of coating collapse and failure to be taken into account at the same time, and achieve the effect of improving water resistance and preventing heat insulation performance

Inactive Publication Date: 2021-07-16
武汉双虎涂料股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to overcome the above-mentioned technical deficiencies, provide an epoxy primer coating, and solve the technical problem in the prior art that a coating with water resistance, heat insulation performance and the performance of preventing coating from collapsing can not be obtained at the same time

Method used

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Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0019] Further, the preparation method of the first glass microspheres comprises: mixing the first glass microspheres with the graphene and ball milling for 1-2 hours, then adding the first silane coupling agent and continuing ball milling for 1-4 hours to obtain The first modified glass beads; wherein, the mass ratio of the first glass beads to the graphene is 5-8:1, and the first glass beads are in the first silane coupling agent The addition amount in the medium is 150-180g / L.

[0020] Further, the preparation method of the second glass microspheres includes: mixing and stirring the second glass microspheres, the titanium dioxide and the coupling agent for 1-2 hours, and then ultrasonicating for 10-20 minutes; The mass ratio of the second glass microspheres to the titanium dioxide is 2-3:1; the amount of the second glass microspheres added to the second silane coupling agent is 200-300 g / L.

[0021] Further, the epoxy primer coating in this specific embodiment is prepared ...

Embodiment 1

[0023] The present embodiment proposes a kind of epoxy primer coating, calculates according to the parts by weight, including 35 parts of epoxy resin, 45 parts of filler kaolin, 10 parts of first modified glass microspheres, 9 parts of second modified glass microspheres, 4 parts of anti-settling agent bentonite, 5 parts of thinner ethylene glycol butyl ether, 2 parts of dispersant polypyrrole; the first glass microsphere is hollow glass microsphere, and the second glass microsphere is solid glass microsphere; The diluent is one or both of ethylene glycol butyl ether and allyl glycidyl ether; the first silane coupling agent or the second silane coupling agent is KH-550 silane coupling agent and the mixture of isocyanate silane coupling agent; further, the mass ratio of the KH-550 silane coupling agent and the isocyanate silane coupling agent is 4:1; further, the epoxy resin has a solid content of 75 % bisphenol A epoxy resin; optionally, the epoxy value of the epoxy resin is 0....

Embodiment 2

[0027] This embodiment proposes a kind of epoxy primer coating, calculates according to weight parts, including 40 parts of epoxy resin, 48 parts of filler talcum powder, 5 parts of first modified glass microspheres, 10 parts of second modified glass microspheres , 5 parts of anti-settling agent clay, 5-8 parts of diluent allyl glycidyl ether, 1 part of dispersant polypyrrole; the first glass microsphere is hollow glass microsphere, and the second glass microsphere is solid Glass beads; the first silane coupling agent or the second silane coupling agent is a mixture of KH-550 silane coupling agent and isocyanate silane coupling agent; further, the KH-550 silane coupling agent The mass ratio with the isocyanate silane coupling agent is 9:1; further, the epoxy resin is a bisphenol A epoxy resin with a solid content of 75%; optionally, the epoxy resin of the epoxy resin The value is 0.4.

[0028] Further, the preparation method of the first glass microspheres comprises: mixing t...

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Abstract

The invention discloses an epoxy primer coating, and belongs to the technical field of coatings. The invention relates to an epoxy primer coating which comprises the following components in parts by weight: 35-40 parts of epoxy resin, 45-50 parts of filler, 5-10 parts of first modified glass beads, 5-10 parts of second modified glass beads, 4-6 parts of an anti-settling agent, 5-8 parts of a diluent and 1-2 parts of a dispersing agent, wherein the first modified glass beads are prepared by ball-milling first glass beads, graphene and a first silane coupling agent; the second modified glass beads are prepared by stirring second glass beads, titanium dioxide and a second silane coupling agent, the first glass beads are hollow glass beads, and the second glass beads are solid glass beads. The coating has excellent water resistance and heat insulation performance and can effectively prevent the coating from collapsing.

Description

technical field [0001] The invention relates to the technical field of coatings, in particular to an epoxy primer coating. Background technique [0002] Paint is coated on the surface of the object to be protected or decorated, and can form a continuous film firmly attached to the object to be coated, usually based on resin, or oil, or emulsion, with or without adding pigments, fillers, and adding corresponding Additives, viscous liquids prepared with organic solvents or water. Coatings belong to organic chemical polymer materials, and the formed coating film belongs to the type of polymer compounds. According to the classification of modern chemical products, coatings belong to fine chemical products. Modern coatings are gradually becoming a class of multifunctional engineering materials and an important industry in the chemical industry. [0003] The currently produced epoxy primer coatings are used for the coating of outdoor buildings such as bridges, and there are pro...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D163/00C09D5/00C09D5/33C09D7/62
CPCC08K2003/2241C09D5/002C09D5/004C09D163/00C09D7/62C09D7/70C08K9/06C08K7/20C08K3/042C08K3/22C08K7/28C08K13/06
Inventor 刘永龙刘加华赵云超王星星阙雷锋余伟
Owner 武汉双虎涂料股份有限公司
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