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Thick-film high-temperature resistant coating capable of self-drying at normal temperature, and preparation method and application thereof

A high-temperature-resistant coating and high-temperature-resistant pigment technology, applied in the direction of anti-corrosion coatings, fire-resistant coatings, coatings, etc., can solve the problem of no breakthrough in high film thickness performance, single technical index heat resistance, high film thickness and color changes are not mentioned and other problems, to achieve the effect of being convenient for large-scale use, good corrosion and protection performance, and no need to bake

Inactive Publication Date: 2019-09-20
NINGBO INST OF MATERIALS TECH & ENG CHINESE ACADEMY OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the patent CN1560156A, the so-called organosilicon high-temperature-resistant paint is only an ordinary heat-resistant paint. From the perspective of components, it does not use special additives to promote the combination, and the technical index is only a single heat-resistant paint, and there is no Breakthrough in performance of high film thickness and non-discoloration; although the patent CN101671522A also has certain heat resistance, high film thickness and color change are not mentioned
Generally speaking, there are many coatings that can withstand a certain high temperature, but there is no breakthrough in the coexistence of high temperature resistance, no discoloration, and high film thickness.

Method used

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  • Thick-film high-temperature resistant coating capable of self-drying at normal temperature, and preparation method and application thereof

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preparation example Construction

[0028] Another aspect of the embodiment of the present invention provides a method for preparing the aforementioned normal temperature self-drying thick-film high-temperature-resistant coating, which includes: modifying silicone resin, golden high-temperature-resistant pigment, flaky low-hiding filler, butanol, The grafted coupling agent and alignment agent are mixed and stirred evenly, and then the viscosity of the obtained mixture is adjusted with xylene, so as to obtain the normal temperature self-drying thick-film high-temperature-resistant coating.

[0029] Further, the stirring time is 20-30 min, and the rotation speed is 2000-4000 r / min.

[0030] Further, the viscosity of the obtained mixture was adjusted to Tu-4 cup for 10-50 seconds with xylene.

[0031] Another aspect of the embodiments of the present invention provides a normal-temperature self-drying thick-film high-temperature resistant coating, which is formed from the aforementioned normal-temperature self-dryin...

Embodiment 1

[0047] According to mass percentage (if not specified below, it refers to the mass percentage content of each component in the normal temperature self-drying thick film high temperature resistant coating) respectively take 41% of Rhodia 6407 modified silicone resin, KH560 silane coupling agent Add 2%, butanol 2%, xylene 10% into the mixing pot and stir for 5 minutes at a speed of 4000r / min. While stirring, continue to add 15% of HC9305 pearl powder, 15% of GA-2 wet-process sericite powder, and HC305 pearl powder Powder 5%, KJ-9200SA aligning agent 1.3%, continue to stir at the same speed for 10 minutes, adjust the viscosity to T-4 cup 20-40S with xylene, filter to obtain the normal temperature self-drying thick film high temperature resistant coating.

Embodiment 2

[0049] According to mass percentage (if not specified below, it refers to the mass percentage content of each component in the normal temperature self-drying thick film high temperature resistant coating), respectively take FJN-9801 modified silicone resin 60%, KBM-403 silane Add 0.3% of coupling agent, 3.2% of butanol, and 10% of xylene into the mixing pot and stir for 5 minutes at a speed of 3000r / min. While stirring, continue to add 14% of HC9305 pearl powder and 3% of GA-2 wet-process sericite powder , 800 mesh glass flakes 3%, SG-205 aligning agent 0.5%, continue to stir at the same speed for 15 minutes, adjust the viscosity to T-4 cup 20-40S with xylene, and filter to obtain the normal temperature self-drying thick film High temperature resistant coating.

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Abstract

The invention discloses a thick-film high-temperature resistant coating capable of self-drying at a normal temperature, and a preparation method and application thereof. The thick-film high-temperature resistant coating comprises modified organic silicon resin, golden high-temperature resistant pigment, sheet lower-covering-power filler, butanol, xylene, graft coupling agent and directional permutation agent. Firstly, through the directional permutation agent, the golden high-temperature resistant pigment and the low-covering-power filler coated in a metal surface coating can be distributed directionally, and accordingly the coating surface is enabled to be neat, bright and clean; secondly, by the aid of the graft coupling agent, the high-temperature resistant pigment, the resin and a metal bottom material are enabled to be connected tightly, corrosion resistance, oxidation resistance and adhesion to organic silicon resin of the coating are enhanced, and stability of the coating in a thick-film condition is guaranteed. The thick-film high-temperature resistant coating is capable of resisting a high temperature up to 600 DEG C, has the advantages of no discoloring and high film thickness, and is simple in production and construction processes and convenient to use in large scale.

Description

technical field [0001] The invention belongs to the technical field of paint research and preparation, and in particular relates to a normal-temperature self-drying thick-film heat-resistant paint, a preparation method and application thereof. Background technique [0002] High-temperature-resistant coatings are protective coatings with special functional requirements. They are mainly used in occasions that require anti-corrosion and decorative protection at high temperatures, such as various engines, exhaust pipes, blast furnaces, chimneys, flues, hot stoves, etc. Traditional high-temperature resistant coatings are divided into two categories: one-component and two-component (multi-component). The energy consumption is high, and it is inconvenient to move the objects before drying, which is easy to cause defects in the objects to be sprayed. Two-component (multi-component) high-temperature-resistant coatings are cross-linked and cured by resin and curing agent, which can r...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D183/04C09D5/08C09D7/62C09D7/61
CPCC08L2201/08C09D5/08C09D5/18C09D183/04C09D7/61C09D7/62C09D7/70C08K13/06C08K9/10C08K3/34C08K7/00C08K3/40
Inventor 蓝席建王立平蒲吉斌赵文杰王永欣薛群基
Owner NINGBO INST OF MATERIALS TECH & ENG CHINESE ACADEMY OF SCI
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