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Stabilization method of diatomite/nanometer TiO2 photocatalytic paint additive

A technology of diatomite and photocatalysis, applied in the direction of coating, etc., can solve the problem of low photocatalytic efficiency of photocatalytic materials

Inactive Publication Date: 2017-05-10
四川嘉宝莉涂料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The object of the present invention is to provide diatomaceous earth / nanometer TiO 2 Stabilization method of photocatalytic coating additives to solve the problem of low photocatalytic efficiency of existing photocatalytic materials

Method used

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  • Stabilization method of diatomite/nanometer TiO2 photocatalytic paint additive

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] Diatomaceous earth / nano TiO 2 Stabilization method of photocatalytic coating additives, using diatomite, tetrabutyl titanate and styrene as raw materials, using in-situ polymerization to synthesize polystyrene-protected diatomite / nano-TiO 2 Composite materials, including the following steps:

[0032] (1) Add 10g of diatomaceous earth to a 250ml three-necked flask, slowly add 100ml of ethanol, 10ml of tetrabutyl titanate and stir at a speed of 450r / min for 30min in a constant temperature water bath at 25°C to make diatomite and tetrabutyl titanate The solution is mixed evenly;

[0033] (2) Heat up to 55° C. and stir the mixed solution at a speed of 500 r / min until the ethanol is completely volatilized, then add water, and heat until the water is completely volatilized to obtain a dry solid;

[0034] (3) Wash the dried solid several times, dry it in vacuum at 50°C for 12h, and then calcinate it at 450°C for 5h to obtain diatomite / nano-TiO 2 composite materials;

[003...

Embodiment 2

[0038] Diatomaceous earth / nano TiO 2 Stabilization method of photocatalytic coating additives, using diatomite, tetrabutyl titanate and styrene as raw materials, using in-situ polymerization to synthesize polystyrene-protected diatomite / nano-TiO 2 Composite materials, including the following steps:

[0039] (1) Add 6g of diatomaceous earth to a 250ml three-necked flask, slowly add 80ml of ethanol and 15ml of tetrabutyl titanate, and stir for 35min at a speed of 550r / min in a constant temperature water bath at 35°C to make diatomite and tetrabutyl titanate The solution is mixed evenly;

[0040] (2) Heat up to 60°C and stir the mixed solution at a speed of 600r / min until the ethanol is completely volatilized, then add water, and heat until the water is completely volatilized to obtain a dry solid;

[0041] (3) Wash the dried solid several times, dry it in vacuum at 60°C for 8h, and then calcinate it at 500°C for 4h to obtain diatomite / nano-TiO 2 composite materials;

[0042]...

Embodiment 3

[0044] Diatomaceous earth / nano TiO 2 Stabilization method of photocatalytic coating additives, using diatomite, tetrabutyl titanate and styrene as raw materials, using in-situ polymerization to synthesize polystyrene-protected diatomite / nano-TiO 2 Composite materials, including the following steps:

[0045] (1) Add 12g of diatomaceous earth to a 250ml three-necked flask, slowly add 120ml of ethanol, 25ml of tetrabutyl titanate and stir at a speed of 500r / min for 36min in a constant temperature water bath at 40°C to make diatomite and tetrabutyl titanate The solution is mixed evenly;

[0046] (2) Heat up to 65° C. and stir the mixed solution at a speed of 500 r / min until the ethanol is completely volatilized, then add water, and heat until the water is completely volatilized to obtain a dry solid;

[0047] (3) Wash the dried solid several times, dry it in vacuum at 65°C for 9h, and then calcinate it at 550°C for 3.8h to obtain diatomite / nano-TiO 2 composite materials;

[00...

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Abstract

The invention discloses a stabilization method of a diatomite / nanometer TiO2 photocatalytic paint additive. A diatomite / nanometer TiO2 composite material is synthesized by using diatomite and tetrabutyl titanate as raw materials by an in-situ polymerization method. The method comprises the following steps that A, the diatomite, the tetrabutyl titanate and ethyl alcohol are mixed; stirring is performed for dissolution to obtain a mixed solution; B, the temperature is gradually raised, so that the ethyl alcohol is completely volatilized; water is added; then, heating is continuously preformed, so that moisture is volatilized to obtain dry solids; C, the dry solids are washed for many times; heating and drying are performed to obtain dry ingredients; the dry ingredients are calcined to obtain powder, i.e., the diatomite / nanometer TiO2 composite material; D, the diatomite / nanometer TiO2 composite material is infiltrated in a polystyrene solution; filtering and drying are performed, so that a polystyrene protection layer is formed on the surface of the composite materia, and the product of the diatomite / nanometer TiO2 photocatalytic coating additive is obtained. The composite material with a good formaldehyde removal function can be prepared by the method provided by the invention.

Description

technical field [0001] The present invention specifically relates to a kind of diatomaceous earth / nanometer TiO 2 Stabilization method for photocatalytic coating additives. Background technique [0002] At present, simply adding composite materials to coatings can easily cause deactivation of photocatalytic materials and may affect the stability of coatings. Contents of the invention [0003] The object of the present invention is to provide diatomaceous earth / nanometer TiO 2 The method for stabilizing photocatalytic coating additives solves the problem of low photocatalytic efficiency of existing photocatalytic materials. [0004] The present invention realizes through following technical scheme: [0005] Diatomaceous earth / nano TiO 2 A stabilization method for photocatalytic coating additives, using diatomite and tetrabutyl titanate as raw materials, using in-situ polymerization to synthesize diatomite / nano-TiO 2 Composite materials, including the following steps: ...

Claims

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Application Information

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IPC IPC(8): C09D7/12
CPCC09D7/62
Inventor 周雪程俊汤紫俊郭丽缨
Owner 四川嘉宝莉涂料有限公司
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