Coating composition with antimicrobial and air purification function

A technology for air purification and composition, applied in the directions of coating, deodorization, disinfection, etc., can solve problems such as silver ion discoloration, and achieve the effect of reducing odor, long-term antibacterial and air purification effects, and avoiding dispersion difficulties.

Active Publication Date: 2008-08-20
CHINA PAINT MFG CO SHENZHEN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In order to improve the antibacterial effect, it is necessary to add silver ions as one of the main antibacterial active ingredients, but the silver ions still face the problem of discoloration

Method used

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  • Coating composition with antimicrobial and air purification function

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0008] Raw material ratio is as follows (each component is by weight):

[0009] Fe 3+ Doped tetraacicular zinc oxide whiskers 1 part

[0010] Molecular sieve 10 parts

[0011] Acrylate emulsion 40 parts

[0012] Titanium dioxide 20 parts

[0013] Filler talcum powder 25 parts

[0014] Sodium Dimetaphosphate 2 parts

[0015] 2 parts bentonite

[0016] Among them, Fe 3+ The preparation of doping tetraacicular zinc oxide whisker is, the FeCl of 10% (weight) 3 The aqueous solution is sprayed on the surface of the four needle-shaped zinc oxide whiskers, and the compounding amount is Fe in percent by weight. 3+ The content is 1% of the four needle-shaped zinc oxide whiskers, dried by air flow at 60°C, and then roasted at a constant temperature in a box-type resistance furnace at 800°C for 15 minutes to obtain Fe 3+ Doped with tetrapod ZnO whiskers.

[0017] In the mixing tank, sequentially add titanium dioxide, filler talc powder, molecular sieve, sodium dimetaphosphate, b...

Embodiment 2

[0019] Raw material ratio is as follows (each component is by weight):

[0020] V 5+ Doped tetraacicular zinc oxide whiskers 3.5 parts

[0021] Porous sodium silicate 1 part

[0022] Acrylate emulsion 55 parts

[0023] Titanium dioxide 30 parts

[0024] Filler talcum powder 10 parts

[0025] Sodium Dimetaphosphate 0.25 parts

[0026] Bentonite 0.25 parts

[0027] Among them, Fe 5+ The preparation of doping tetraacicular zinc oxide whisker is, the VCl of 10% (weight) 5 The aqueous solution is sprayed on the surface of the four-needle zinc oxide whisker, and the compounding amount is V in percent by weight. 5+ The content is 0.3% of the four needle-shaped zinc oxide whiskers, dried by air flow at 90°C, and then roasted at a constant temperature in a box-type resistance furnace at 500°C for 60 minutes to obtain V 5+ Doped with tetrapod ZnO whiskers. Operate later on with embodiment 1, obtain the coating composition with antibacterial and air cleaning function. Its anti...

Embodiment 3

[0029] Raw material ratio is as follows (each component is by weight):

[0030] Fe 3+ , V 5+ 、Cu 2+ Doped tetraacicular zinc oxide whiskers 5 parts

[0031] Molecular sieve 1 part

[0032] Activated carbon 1 part

[0033] Porous sodium silicate 1 part

[0034] Acrylate emulsion 45 parts

[0035] Titanium dioxide 25 parts

[0036] Filler talcum powder 20 parts

[0037] Sodium Dimetaphosphate 1 part

[0038] 1 part bentonite

[0039] Among them, Fe 3+ , V 5+ 、Cu 2+ The preparation of doping tetraacicular zinc oxide whisker is, the FeCl of 10% (weight) 3 , VCl 5 , CuCl 2 The aqueous solution is mixed and sprayed on the surface of the four-needle zinc oxide whisker, and the compounding amount is Fe 3+ , V 5+ 、Cu 2+ The contents are 0.3%, 0.5%, and 0.7% of the four-needle zinc oxide whiskers, dried by airflow at 80°C, and then roasted at a constant temperature in a box-type resistance furnace at 700°C for 50 minutes to obtain Fe 3+ , V 5+ 、Cu 2+Doped with tetra...

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Abstract

The invention provides a coating composition with antibacterial and air purification function, which comprises 1 to 10 parts by weight of doping four acicular zinc oxide whisker, 1 to 10 parts by weight of mesoporous filler, 40 to 55 parts by weight of acrylate emulsion, 10 to 30 parts by weight of titanium dioxide, 10 to 25 parts by weight of filler talcum powder, and 0.5 to 10 parts by weight of addition agent, that are calculated according to part by weight; wherein, the doping ion is one or more than one elements among Fe<3+>, Cu<2+>, Ag<+> or V<5+>. The coating composition constructed by ordinary spraying or brushing has long-term antibacterial and air purification effects after curing and film forming; the antibacterial effect to staphylococcus aureus, escherichia coli, salmonella typhimurium and other ordinary bacteria in indoor air reaches more than 95 percent, and the degradation rate to formaldehyde with thickness of 0.75 to 0.85 in 12h, 24h, 48h and 72h reaches respectively to 50 percent, 70 percent, 82 percent and more than 85 percent. The coating composition with antibacterial and air purification function is mainly used as indoor coating.

Description

Technical field: [0001] The invention relates to a functional coating composition, in particular to a coating composition with antibacterial and air purification functions Background technique: [0002] Microorganisms such as bacteria exist in various situations around us, including a large number of harmful and even deadly microorganisms. The environment where people live and work is also increasingly polluted by chemical and industrial waste gases, such as formaldehyde, benzene, ammonia, NOx, SOx, dioxins and environmental hormones. Among them, formaldehyde has become the main chemical pollutant in indoor air, ranking second on the list of priority control of toxic chemicals in my country. The use of physical and chemical pollution control methods such as adsorbents, chemical reagents and disinfectants can only solve temporary problems and may bring new environmental problems. To effectively prevent the growth, reproduction, spread and spread of microorganisms, while red...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D133/08C09D7/12A61L9/00
Inventor 林定波
Owner CHINA PAINT MFG CO SHENZHEN
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