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Preparation method of nano toughened inorganic transparent protective coating

A transparent protection, nano-filler technology, applied in the direction of alkali metal silicate coatings, coatings, etc., can solve the problems of unstable coating performance, reduced mechanical properties of inorganic coatings, demulsification, etc., and achieves good toughening effect and weakens agglomeration. Trend, stable performance effect

Active Publication Date: 2020-09-25
TAIZHOU BRANCH ZHEJIANG-CALIFORNIA INT NANOSYSTEMS INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although organic resin can toughen inorganic coatings, it will also reduce the mechanical properties (such as hardness, wear resistance), water resistance, aging resistance and other properties of inorganic coatings.
Moreover, organic resins are added in the form of emulsions, and if they are mixed with strong alkaline inorganic coatings for a long time, it will lead to defects such as demulsification and unstable coating properties.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] A kind of nano toughening inorganic transparent protective coating, is made up of the raw material of following percentage by weight: Sodium water glass (modulus 3.0, solid content 50%) 70%, sodium methyl silicate (solid content 30%) 10%, Silicon phosphate (particle size≤10μm) 7%, nano Fe 2 o 3 (Particle size 80nm) 0.5%, BYK190 0.3%, BYK346 0.5%, BYK024 1%, deionized water 10.7%, its preparation method is:

[0027] (1) Weigh deionized, sodium methyl silicate, BYK190, BYK346, silicon phosphate, nano-Fe by weight 2 o 3 , added to the batching tank and stirred to form a slurry;

[0028] (2) Inject the slurry into a nano ball mill (Suzhou Weige Nano Technology Co., Ltd., T series sand mill) for grinding. The grinding process is: the slurry injection rate is 10L / min, the grinding time is 60min, and the grinding medium ZrO 2 The diameter is 0.1~0.5mm, and the maximum particle size of the slurry after grinding is ≤0.2μm;

[0029] (3) In a high-speed disperser, add sodium-...

Embodiment 2

[0031] A kind of nano toughened inorganic transparent protective coating, is made up of the raw material of following percentage by weight: Potassium water glass (modulus 5.2, solid content 30%) 80%, potassium methyl silicate (solid content 40%) 5%, Silicon tripolyphosphate (particle size≤10μm) 5%, nano-Al 2 o 3 (Particle size 50nm) 1%, Dego740W 1%, BYK333 0.3%, TEGO 810 0.3%, deionized water 7.4%, its preparation method is:

[0032] (1) Weigh deionized, potassium methyl silicate, Dego740W, BYK333, silicon tripolyphosphate, nano-Al by weight 2 o 3 , added to the batching tank and stirred to form a slurry;

[0033] (2) The slurry is injected into a nano ball mill (Suzhou Weige Nano Technology Co., Ltd., T series sand mill) for grinding. The grinding process is: the slurry injection rate is 1L / min, the grinding time is 180min, and the grinding medium ZrO 2 The diameter is 0.1~0.5mm, and the maximum particle size of the slurry after grinding is ≤0.2μm;

[0034] (3) In a high...

Embodiment 3

[0036]A kind of nano toughened inorganic transparent protective coating, is made up of the raw material of following percentage by weight: Lithium-based water glass (modulus 6.0, solid content 20%) 85%, sodium methyl silicate (solid content 40%) 1%, Silicon tripolyphosphate (particle size≤10 μm) 8%, nano ZnO (particle size 50nm) 2%, 5040 0.5%, FSO-100 0.1%, DC-65 0.3%, deionized water 3.1%, its preparation method is:

[0037] (1) Weigh deionized, sodium methyl silicate, 5040, FSO-100, silicon tripolyphosphate, and nano-ZnO by weight, add them to the batching tank and stir to form a slurry;

[0038] (2) The slurry is injected into a nano ball mill (Suzhou Weige Nano Technology Co., Ltd., T series sand mill) for grinding. The grinding process is: the slurry injection rate is 5L / min, the grinding time is 120min, and the grinding medium ZrO 2 The diameter is 0.1-0.5mm, and the maximum particle size of the slurry after grinding is ≤0.2μm;

[0039] (3) In the high-speed disperser, ...

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Abstract

The invention relates to the field of inorganic coating, and aims to provide a method for preparing nanometer toughened inorganic transparent protective coating. The method includes weighing various raw components according to set weight percentages; adding methyl silicate, phosphate, nanometer fillers, dispersing agents, surfactants and deionized water into ingredient barrels, and stirring the methyl silicate, the phosphate, the nanometer fillers, the dispersing agents, the surfactants and the deionized water to form mixed slurry; injecting the mixed slurry into nanometer ball mills and grinding the mixed slurry; adding water glass and defoaming agents into dispersion machines, stirring the water glass and the defoaming agents and then adding the ground mixed slurry into the dispersion machines; continuing to stir the water glass, the defoaming agents and the ground mixed slurry to obtain the nanometer toughened inorganic transparent protective coating. The method has the advantages that inorganic coating is toughened by nanometer materials, and accordingly good toughening effects can be realized without deterioration of the mechanical properties (such as the hardness and the abrasion resistance), the water resistance, the aging resistance and the like of coatings; the nanometer materials are stable in performance and can be mixed with the strong-alkalinity inorganic coating without qualitative change; fillers are ground by nanometer sanders, the particle sizes of the fillers can be reduced and are smaller than or equal to 0.2 micrometer, accordingly, the method is favorable for preparing transparent inorganic coatings, the trend of agglomeration of the nanometer fillers can be weakened, and the toughening effects can be effectively realized by the nanometer fillers.

Description

technical field [0001] The invention relates to a preparation method of a nano-toughened inorganic transparent protective coating, which belongs to the field of inorganic coatings. Background technique [0002] Inorganic coatings are coatings that use inorganic materials as film-forming substances, mainly silicate (sodium, potassium or lithium salt) water glass inorganic coatings. Compared with the current mainstream organic coatings, they have a series of advantages, such as: 1) Non-combustibility, the temperature resistance of inorganic coatings is particularly good, not only will not burn at a high temperature of 1200 ℃, but also flame retardant; 2) Petrochemical effect, inorganic coatings can chemically react with mineral substrates to form a waterproof, waterproof 3) Air permeability, inorganic coatings are waterproof and highly breathable, so that the water inside the stone building can evaporate freely; at the same time, it has the filtering effect of alkali substance...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D1/04C09D7/61C09D7/63
CPCC09D1/04C09D7/61C09D7/63
Inventor 吴春春汪海风刘杰盛建松方竹根
Owner TAIZHOU BRANCH ZHEJIANG-CALIFORNIA INT NANOSYSTEMS INST
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