Formaldehyde removal solid powder coating and preparation method thereof

A technology for solid powder and coatings, applied in powder coatings, polyester coatings, polyurea/polyurethane coatings, etc., can solve the problems of low utilization efficiency of visible light, easy deactivation of catalysts, etc., and achieve remarkable formaldehyde removal effect, simple preparation method, Conducive to the effect of environmental protection

Active Publication Date: 2016-04-13
宁波爱甬新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, photocatalytic technology has problems such as the need for ultraviolet excitation light sources, low utilization efficiency of visible light, and easy deactivation of catalysts.

Method used

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  • Formaldehyde removal solid powder coating and preparation method thereof
  • Formaldehyde removal solid powder coating and preparation method thereof
  • Formaldehyde removal solid powder coating and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] The formaldehyde-removing solid powder coating in the present embodiment is made up of the raw material of following weight portion:

[0035]

[0036] Wherein, the preferred preparation method of described nanofiller comprises the steps:

[0037] 1) React 120g of chloropropyltriethoxysilane and 34.4g of 1,2,4-1H-triazole under a nitrogen atmosphere at 110°C for 24 hours; after naturally cooling to room temperature, wash with anhydrous ether 5 times, Then put it in a vacuum drying oven and dry it at 80°C for 12 hours, and the obtained yellow viscous liquid is triazole salt;

[0038] 2) Take 60g of the triazole salt obtained in step 1) and add it to the suspension with 90g of TiO 2 Nanoparticles in chloroform, wherein the mass of chloroform is 270g, under a nitrogen atmosphere, reflux and stir at 80°C for 24h, centrifuge the obtained product, wash the separated solid with chloroform repeatedly, and place it in a vacuum drying oven at 80°C Drying for 10 h under the ho...

Embodiment 2

[0044] The formaldehyde-removing solid powder coating in the present embodiment is made up of the raw materials of following parts by weight

[0045]

[0046] Wherein, the preferred preparation method of described nanofiller comprises the steps:

[0047] 1) React 120g of chloropropyltriethoxysilane and 66.35g of tolyltriazole at 90°C for 36h under a nitrogen atmosphere; wash with anhydrous ether for 3 times after naturally cooling to room temperature, and then put Dry in a vacuum oven at 60°C for 24 hours, and the obtained yellow viscous liquid is triazole salt;

[0048] 2) Take 40g of the triazole salt obtained in step 1) and add it to the suspension with 120g of TiO 2 Nanoparticles in chloroform, wherein the mass of chloroform is 600g, under nitrogen atmosphere, reflux and stir at 100°C for 24h, centrifuge the obtained product, wash the separated solid with chloroform repeatedly, and place it in a vacuum drying oven at 60°C Drying for 20h under the hood to obtain IL-TiO...

Embodiment 3

[0054] Weigh various raw materials according to the ratio of mass and number stated below

[0055]

[0056] Wherein, the preferred preparation method of described nanofiller comprises the steps:

[0057] 1) React 120g of chloropropyltriethoxysilane and 66.35g of 1-methylbenzotriazole under a nitrogen atmosphere at 100°C for 30h; after naturally cooling to room temperature, wash with anhydrous ether 4 times, and then put Dry in a vacuum oven at 70°C for 20 hours, and the obtained yellow viscous liquid is triazole salt;

[0058] 2) Take 30g of the triazole salt obtained in step 1) and add it to the suspension with 60g of SiO 2 Nanoparticles in chloroform, wherein the mass of chloroform is 240g, under a nitrogen atmosphere, reflux and stir at 90°C for 24h, centrifuge the obtained product, wash the separated solid with chloroform repeatedly, and place it in a vacuum drying oven at 70°C Drying for 15h under the hood to obtain IL-SiO 2 ;

[0059] 3) Take 20g of step 2) to obt...

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Abstract

The invention discloses a formaldehyde removal solid powder coating and a preparation method thereof. The method comprises the following steps: putting an organic component, an inorganic filler, a nanometer filler, a leveling agent, an antifoaming agent, a dispersant and a film forming assistant in a high speed mixer in proportion, mixing above materials for 8-10min, sending the obtained mixture to a screw extruder, carrying out melt extrusion through the screw extruder with the charging segment temperature of 30-40DEG C, the melting segment temperature of 85-110DEG C and the discharging segment temperature of 110-170DEG C, tabletting the obtained molten material through a tablet press until the thickness is 2-5mm, crushing the obtained tablets, sending the crushed material to a flour mill, grinding and grading the crushed material, separating out fine powder and foreign materials through a cyclone separator, separating a product by using a 50-100 mesh powder sieve, and slaking the product for 2-5d to obtain a finished product. The coating has the advantages of simple preparation, easy packaging and transportation, use convenience, high film hardness and scrubbing resistance.

Description

technical field [0001] The invention belongs to the technical field of chemical coatings, and relates to a solid powder coating and a preparation method thereof, in particular to an environment-friendly solid powder coating with formaldehyde removal function and a preparation method thereof. Background technique [0002] In recent years, with the continuous improvement of people's living standards and the continuous improvement of the living environment, interior decoration has become increasingly luxurious and beautiful. At the same time, there are more and more problems affecting human health due to indoor pollution caused by decoration. Most of the decoration materials contain urea-formaldehyde resin, phenolic resin, melamine-formaldehyde resin, etc. When these substances are heated, they will decompose formaldehyde. Formaldehyde is a moderately toxic substance that is very harmful to human health. Its effects are mainly manifested in abnormal sense of smell, irritation, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D167/06C09D175/04C09D133/04C09D5/03C09D7/12
CPCC08K2201/011C08L2205/02C08L2205/03C08L2205/035C09D5/033C09D167/06C09D175/04C08L33/04C08K13/02C08K3/34C08K2003/265C08K2003/2241C08K5/34928C08K2003/0831C08L1/14C08L33/02C08K3/08C08L29/14C08K3/36
Inventor 夏行
Owner 宁波爱甬新材料科技有限公司
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