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Bottom surface containing type connecting coating and preparation method thereof

A bottom surface and coating technology, applied in the coating field, can solve the problem of loose adhesion of the old coating, and achieve the effect of short coating interval, fast drying and easy construction

Active Publication Date: 2021-08-06
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

[0003] In view of this, it is necessary to provide a bottom surface inclusive connection coating and its preparation method, in order to solve the technical problem in the prior art that the old coating is directly coated with a new coating on the surface of the old coating to make the old coating loose or have poor adhesion

Method used

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  • Bottom surface containing type connecting coating and preparation method thereof
  • Bottom surface containing type connecting coating and preparation method thereof
  • Bottom surface containing type connecting coating and preparation method thereof

Examples

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preparation example Construction

[0026] The second aspect of the present invention provides a kind of preparation method of bottom surface inclusive connection coating, and the preparation method of its main paint comprises the following steps:

[0027] S1 Mix the first solvent, chlorinated rubber, dispersant, hydrated magnesium silicate, fumed silica, polyamide wax slurry, pigment, zinc phosphate, sericite and silicon micropowder, and grind them to Fineness≤50μm, get slurry A1;

[0028] S2 Add the liquid epoxy resin and the second solvent to the above slurry A1, stir evenly to obtain the main paint.

[0029] The preparation method of the bottom-surface containing type connection paint provided by the second aspect of the present invention is used to obtain the bottom surface-contained type connection paint provided by the first aspect of the present invention.

[0030] Further, the preparation method of the above-mentioned bottom surface inclusive connection paint, the step further includes: mixing the main...

Embodiment 1

[0032] This embodiment provides a method for preparing a bottom surface inclusive connection coating, comprising the following steps:

[0033] (1) Xylene, aromatic hydrocarbon solvent S-100A, aqueous chlorinated rubber, dispersant, hydrated magnesium silicate, fumed silica, polyamide wax paste, anatase white, carbon black, zinc phosphate, sericite Mix evenly with silicon micropowder, disperse at high speed, and grind to a fineness of ≤50 μm with a sand mill to obtain slurry A1; add liquid epoxy resin, isopropanol and aromatic hydrocarbon solvent S-100A to the above slurry A1, and stir evenly to obtain main paint.

[0034] (2) Mix the above-mentioned main paint, curing agent and diluent uniformly according to the mass ratio of 1:0.1:0.1 to obtain the bottom surface inclusive connection paint. Among them, the diluent is compounded by isopropanol and aromatic hydrocarbon solvent S-100A according to the mass ratio of 1:3.

Embodiment 2～3

[0036] The preparation methods of Examples 2-3 and Comparative Examples 1-4 are completely consistent with those of Example 1, the only difference being that the specific component contents of the selected raw materials are inconsistent, see Table 1 for details.

[0037] Table 1

[0038]

[0039]

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Abstract

The invention discloses a bottom surface containing type connecting coating and a preparation method thereof. The bottom surface containing type connecting coating comprises main paint and a curing agent; the main paint is composed of the following raw materials in percentage by weight: 15%-25% of a first solvent, 10%-16% of chlorinated rubber, 0.2%-0.8% of a dispersing agent, 0.6%-1% of hydrated magnesium silicate, 0.4%-0.8% of fumed silica, 0.8%-1.3% of polyamide wax slurry, 2%-7% of a pigment, 3%-8% of zinc phosphate, 3%-8% of sericite, 15%-25% of silica powder, 12%-23% of a second solvent and 5%-10% of liquid epoxy resin; the first solvent is formed by mixing xylene and an aromatic solvent S-100A; the second solvent is formed by mixing isopropanol and an aromatic solvent S-100A; and in the first solvent and the second solvent, the ratio of S-100A to xylene to isopropanol is 1:(0.5-0.7):(0.2-0.4). The bottom surface containing type connecting coating can be directly coated on an old single-component coating layer without biting the bottom or dissolving an old coating layer, can also be prevented from being bitten or dissolved by upper-layer double-component finish paint, and has the advantages of simplicity and convenience in construction, high drying speed and short coating interval.

Description

technical field [0001] The invention relates to the technical field of coatings, in particular to a bottom-surface containing connection coating and a preparation method thereof. Background technique [0002] After a period of use, the coating is often damaged by the external environment. It is usually repainted. In the process of recoating, if the old coating is not cleaned, the old coating will often be bitten or dissolved when the new coating is directly applied on it, resulting in loosening of the substrate or poor adhesion between layers . Contents of the invention [0003] In view of this, it is necessary to provide a bottom surface inclusive connection coating and a preparation method thereof to solve the technical problem in the prior art that directly coating a new coating on the surface of an old coating makes the old coating loose or has poor adhesion. [0004] The first aspect of the present invention provides a bottom surface inclusive connection coating, i...

Claims

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Application Information

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IPC IPC(8): C09D115/02C09D163/00C09D7/61C09D7/65C09D5/08
CPCC09D115/02C09D163/00C09D7/61C09D7/65C09D7/70C09D5/08C08K2201/014C08L63/00C08L77/00C08K13/04C08K3/34C08K7/26C08K3/32C08K3/36C08L15/02
Inventor 赵云超王星星阙雷锋李华杰刘加华刘永龙
Owner 武汉双虎涂料股份有限公司