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Filling and insulating mould coating of titanium dioxide coating fly ash float and preparation method thereof

A technology of fly ash floating beads and titanium dioxide, which is applied in chemical instruments and methods, fireproof coatings, fibrous fillers, etc., can solve the problems of thick insulation layer, poor convection and radiation heat transfer effect, and inability to block heat transfer, etc. The effect of improving utilization and thermal reflectivity

Inactive Publication Date: 2007-03-14
陈建华 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] In order to improve the heat insulation effect of exterior wall coatings, the present invention comprehensively applies the three heat insulation principles of barrier, reflection and radiation, and solves the problem of poor effect of existing products and technologies in reducing convection and radiation heat transfer, thicker insulation layers, and poor insulation performance. The thermal layer can only slow down but cannot block the technical problems such as heat transfer, and provides a coating filler and thermal insulation coating of titanium dioxide coated fly ash floating beads and their preparation method

Method used

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  • Filling and insulating mould coating of titanium dioxide coating fly ash float and preparation method thereof
  • Filling and insulating mould coating of titanium dioxide coating fly ash float and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0049] Example 1 Preparation of titanium dioxide-coated fly ash floating beads filler

[0050] Mix 50g of distilled water with a particle size of 70-80um and a specific surface area of ​​0.4-0.5m 2 The fly ash floating pearl 5g of / g adds in the four-necked flask, and the concentration that drips 0.3ml in this four-necked flask is the surfactant sodium dodecylbenzene sulfonate aqueous solution of 0.1g / ml, fully stirs, Make the fly ash floating bead suspension; under the electric stirrer with 60 rev / min constant speed stirring state, dropwise the mass percentage concentration of 286.7g in this fly ash floating bead suspension in the reaction time of 6 hours is 10% Titanium sulfate aqueous solution, and maintain the pH value at 2.0 to 2.5 by dropwise adding 0.1g / ml sodium hydroxide solution to maintain the reaction time, let it stand for 2 hours, filter, wash until the filtrate is added with sodium hydroxide Until there is no white precipitate, the powder is obtained by suction...

Embodiment 2

[0051] Example 2 Prepare the filler of titanium dioxide coated fly ash floating beads

[0052] Mix 60g of distilled water with a particle size of 70-80um and a specific surface area of ​​0.4-0.5m 2 The fly ash floating pearl 5g of / g adds in the four-necked flask, and in this four-necked flask, drips the surfactant sodium dodecylbenzene sulfonate aqueous solution of the concentration 0.1g / ml of 0.2ml, fully stirs, prepares Fly ash floating bead suspension; under the state of stirring at a constant speed of 60 rpm with an electric stirrer, in the reaction time of 4 hours, dropwise add 126.1g of 126.1g mass percentage concentration to the fly ash floating bead suspension to be 15% titanyl sulfate aqueous solution, and keep the pH value at 2.0 to 2.5 by dropping 0.1g / ml potassium hydroxide solution to maintain the reaction time, let it stand for 2 hours, filter, wash until the filtrate is added with sodium hydroxide Until there is no white precipitate, the powder is obtained by ...

Embodiment 3

[0053] Example 3 Preparation of fillers coated with titanium dioxide fly ash floating beads

[0054] Mix 55g of distilled water with a particle size of 70-80um and a specific surface area of ​​0.4-0.5m 2 The fly ash floating pearl 5g of / g adds in the four-necked flask, and in this four-necked flask, drips the surfactant sodium dodecylbenzene sulfonate aqueous solution of the concentration 0.1g / ml of 0.2ml, fully stirs, prepares Fly ash floating bead suspension; under the electric agitator with 60 rev / min constant speed stirring state, in 8 hours reaction time in this fly ash floating bead suspension, the mass percent concentration of 140.2g is 20% Titanium sulfate aqueous solution, and maintain the pH value under the condition of 2.0~2.5 by dropping 0.1g / ml potassium hydroxide solution, keep the reaction time, let it stand for 2 hours, filter, wash until no sodium hydroxide is added in the filtrate Until the white precipitate was obtained, the powder was obtained by suction ...

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Abstract

The present invention discloses one kind of TiO2 coated flyash boulder stuffing, one kind of heat insulating paint and their preparation process. Through non-homogeneous deposition to coat flyash boulder with one layer of hydrated TiO2, and subsequent washing, drying and calcining to fix TiO2 onto the surface of flyash boulder, TiO2 coated flyash boulder stuffing is produced. The heat insulating paint with TiO2 coated flyash boulder and cordierite as main stuffing can radiate heat the coating absorbs in high infrared emissivity to dissipate heat inside the coating. At the same time, the heat insulating paint has high reflectivity to the visible light and near infrared ray of sunlight, high heat isolating effect, high water resistance, high ultraviolet degradation resistance and other advantages. The heat insulating paint is suitable for use in outer wall and roof of house, storage tank, pipeline, etc to reach obvious energy saving effect.

Description

technical field [0001] The invention relates to a building coating, in particular to a coating filler with titanium dioxide coated fly ash beads, a thermal insulation coating using the filler and a preparation method thereof. Background technique [0002] Thermal insulation coating is a new type of functional coating. It can effectively block, reflect, and radiate solar heat, reduce the surface of the outer wall and the indoor temperature, so as to improve the working environment and reduce energy consumption. Therefore, it is widely used in building outer walls, ships, vehicles, oil tank outer walls and military , aerospace and other fields. At present, according to the three ways of heat transfer, conduction, convection and radiation, thermal insulation coatings are divided into three types: barrier type, reflective type and radiation type thermal insulation coatings. [0003] Barrier-type heat-insulating coatings usually use materials with low apparent density, loose in...

Claims

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Application Information

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IPC IPC(8): C09D7/00C09D5/18C09C3/06
Inventor 陈建华陆洪彬
Owner 陈建华
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