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Household functional paint as well as preparation method and application thereof

A technology of functional coatings and functional fillers, applied in the direction of coatings, etc., can solve the problems of easy aging and chalking of coatings, cure the symptoms but not the root cause, and low efficiency of organic matter, and achieve the effect of being suitable for storage, simple preparation and simple construction method.

Inactive Publication Date: 2015-11-25
SHANGHAI SHAOGUANG ENVIRONMENT PROTECTION TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] A large number of research results have shown that nano-titanium dioxide and nano-zinc oxide have photocatalytic properties and can degrade organic substances such as formaldehyde and toluene in the air. There are many open technical solutions that use this type of photocatalysis as fillers to make wall coatings. However, The efficiency of photocatalytic degradation of organic matter in the air of this kind of coating is very low
There are also many public technical solutions that use adsorptive substances, such as porous carbon, as coatings. There is an adsorption equilibrium in a single adsorption, which leads to the problems of secondary pollution and a rapid decline in adsorption efficiency.
[0004] There are also a large number of public reports that adopt the method of sealing paint to coat the surface of furniture and walls. Although it has certain effects on the release of harmful chemicals, this single method is a temporary solution, not a permanent cure.
[0005] The inventors have found that the main technical defects of existing photocatalytic coatings are as follows: the one, the catalytic efficiency of photocatalysis under indoor light source is not high; It is easy to age and pulverize, and becomes a source of indoor suspended particle pollution. In practical applications, the comprehensive effect outweighs the gain

Method used

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  • Household functional paint as well as preparation method and application thereof
  • Household functional paint as well as preparation method and application thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Drop into water 79kg, lauryl alcohol 5kg and polycarboxylate emulsion (500 type, solid mass content 42%) 1.6kg respectively in the 500L stainless steel container, mix at low speed; Add photocatalyst (x=0.2) under low speed stirring Copper-doped bismuth vanadate, average particle size 200nm, Shanghai Huaming High-Tech Group) 10kg, then high-speed stirring 30min; Add water 26.4kg, high-speed stirring 10min; Add water-based fluorocarbon emulsion (mass solid content 45%) 50kg, low-speed Stir for 20 minutes, then filter with a 2-micron filter bag; transfer the filtered coating slurry into a 500L stainless steel container, add 28kg of porous alumina microspheres (average particle size 80nm, total pore volume 0.14mL / g, East China University of Science and Technology), and stir at a low speed After 10 minutes, household functional coating A was prepared. The viscosity of the paint at 26° C. is 114 mPa.s (DV-I digital viscometer, Brookfield Instruments).

Embodiment 2

[0029] According to the same method of embodiment, the consumption of different substances is as follows: lauryl alcohol 10kg, polycarboxylate 2kg, photocatalyst 12kg, water-based fluorocarbon emulsion 80kg, porous alumina microsphere 22kg, the coating B that makes. The paint has a viscosity of 141 mPa.s at 26°C.

Embodiment 3

[0031] According to the same method of embodiment, the consumption of different substances is as follows: lauryl alcohol 7kg, polycarboxylate 3kg, photocatalyst 21kg, aqueous fluorocarbon emulsion 56kg, porous alumina microsphere 39kg, the coating C that makes. The paint has a viscosity of 178 mPa.s at 26°C.

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Abstract

The invention discloses a household functional paint as well as a preparation method and application thereof. A Cu-doped bismuth vanadate visible light catalyst and porous aluminium oxide microspheres are used as synergetic filling materials for adsorption and photocatalysis; a water-based fluorocarbon emulsion is used as a binding agent; indoor wall surfaces and furniture are coated with the paint which has the air purification function of degrading harmful organic matters in air. The preparation process is simple, and the paint is easy to store and apply.

Description

technical field [0001] The household paint of the invention belongs to functional paint, is especially suitable for surface coating of indoor walls and furniture, and has the effect of purifying indoor air. technical background [0002] The release of harmful chemical substances in furniture decoration materials is one of the main factors affecting indoor air quality. Two technologies are used in the existing technical scheme: one is to degrade or absorb and capture the released harmful chemical substances, and the other is to use a closed method to reduce the release rate. [0003] A large number of research results have shown that nano-titanium dioxide and nano-zinc oxide have photocatalytic properties and can degrade organic substances such as formaldehyde and toluene in the air. There are many open technical solutions that use this type of photocatalysis as fillers to make wall coatings. However, The efficiency of photocatalytic degradation of organic matter in the air ...

Claims

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Application Information

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IPC IPC(8): C09D127/12C09D7/12
Inventor 不公告发明人
Owner SHANGHAI SHAOGUANG ENVIRONMENT PROTECTION TECH CO LTD
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