Inorganic anti-radiation building coating and preparation method thereof

A technology for architectural coatings and radiation protection, applied in radiation-absorbing coatings, fire-resistant coatings, alkali metal silicate coatings, etc., can solve the problems of limited application, easy oxidation of carbon black, etc., to improve the application range, and not easy to absorb dust , Long-term effective electromagnetic shielding effect

Active Publication Date: 2021-04-09
深圳力效新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the application of carbon black is limited due to its easy oxidation.

Method used

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  • Inorganic anti-radiation building coating and preparation method thereof
  • Inorganic anti-radiation building coating and preparation method thereof

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preparation example Construction

[0033] The preparation method of hydrophobic silica sol is as follows: the influence of the four factors of the modulus of potassium silicate solution, reaction temperature, reaction time and the amount of silicon-acrylic emulsion on the hydrophobic effect of the coating is determined by the method of orthogonal experiment, and the hydrophobicity of the preparation is obtained. The optimal synthesis process of silica sol: the modulus of potassium silicate solution is 5.5, the reaction temperature is 50°C, the reaction time is 15 minutes, and the addition amount of silicon acrylic emulsion is 25%; Viscosity, film-forming properties and mechanical properties were tested, and the optimum percentages of zinc powder content were obtained as 40% and 50%; the infrared spectrum of the potassium silicate base material after adding the silicon-acrylic emulsion showed that potassium silicate There are groups in the solution, which improves the mechanical properties of the coating such as ...

Embodiment 1

[0048] The preparation method for preparing the inorganic anti-radiation exterior wall coating according to the following steps comprises the following steps:

[0049] Step 1: Weigh the raw materials according to the following parts by weight:

[0050] 55 parts of hydrophobic silica sol, 8 parts of sepiolite, 10 parts of wollastonite, 7 parts of aluminum hydroxide, 5 parts of microwave absorber, 5 parts of inorganic mineral pigment, 10 parts of filler, 0.1 part of dispersant, defoamer 0.2 parts, thickener 0.4 parts.

[0051] Add the microwave absorber and dispersant to the hydrophobic silica sol, and grind to obtain the mixed solution A; grind by ball milling, the grinding speed is 1000r / min, and the grinding time is 2 hours.

[0052] The microwave absorber is coated SiO 2 layer of carbon black with an average particle size of 20 nm.

[0053] Step 2: Add sepiolite, aluminum hydroxide, and wollastonite into mixed solution A, disperse fully after soaking to obtain mixed solut...

Embodiment 2

[0057] The preparation method for preparing the inorganic anti-radiation exterior wall coating according to the following steps comprises the following steps:

[0058] Step 1: Weigh the raw materials according to the following parts by weight:

[0059] 58 parts of hydrophobic silica sol, 9 parts of sepiolite, 12 parts of wollastonite, 8 parts of aluminum hydroxide, 8 parts of microwave absorber, 6 parts of inorganic mineral pigment, 13 parts of filler, 0.2 part of dispersant, defoamer 0.2 parts, thickener 0.4 parts.

[0060] Add the microwave absorber and dispersant to the hydrophobic silica sol, and grind to obtain the mixed solution A; grind by ball milling, the speed of grinding is 1500r / min, and the grinding time is 1.5 hours.

[0061] The microwave absorber is coated SiO 2 layer of carbon black with an average particle size of 30nm.

[0062] Step 2: Add sepiolite, aluminum hydroxide, and wollastonite into mixed solution A, disperse fully after soaking to obtain mixed s...

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Abstract

The invention discloses an inorganic anti-radiation building coating and a preparation method thereof. The inorganic anti-radiation building coating comprises the following components in parts by weight: 55-60 parts of hydrophobic silica sol, 8-10 parts of sepiolite, 10-13 parts of wollastonite, 7-10 parts of aluminum hydroxide, 5-10 parts of a microwave absorbent, 5-8 parts of an inorganic mineral pigment, 10-15 parts of a filler, 0.1-0.3 part of a dispersant and 0.5-1 part of an additive. The building coating disclosed by the invention has excellent stability, weather resistance, high temperature resistance, good adhesion to a base material and excellent electromagnetic shielding performance.

Description

technical field [0001] The invention relates to the technical field of architectural coatings, in particular to an inorganic anti-radiation architectural coating and a preparation method. Background technique [0002] Architectural coatings include water-based architectural coatings and solvent-based architectural coatings. Solvent-based architectural coatings are restricted in architectural coatings because they release toxic solvents during curing and do not meet environmental protection requirements. However, due to the strong aging resistance of polymer film-forming materials of solvent-based architectural coatings, they are still used in the exterior wall decoration of high-rise buildings. Exterior wall coatings generally require that the underlying surface be dry, solid, firm, and free from sanding, cracks, and looseness. However, most of the architectural coatings suitable for exterior walls now use solvent-based architectural coatings if they want to meet their requ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D1/04C09D7/61C09D7/62C09D7/65C09D5/32C09D5/38
CPCC09D1/04C09D5/18C09D5/32C09D5/38C09D7/61C09D7/62C09D7/65
Inventor 刘杰何东任杰
Owner 深圳力效新材料科技有限公司
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