CN101638526B - Coating with function of eliminating formaldehyde and preparation technology thereof - Google Patents

Coating with function of eliminating formaldehyde and preparation technology thereof Download PDF

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Publication number
CN101638526B
CN101638526B CN 200810117383 CN200810117383A CN101638526B CN 101638526 B CN101638526 B CN 101638526B CN 200810117383 CN200810117383 CN 200810117383 CN 200810117383 A CN200810117383 A CN 200810117383A CN 101638526 B CN101638526 B CN 101638526B
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China
Prior art keywords
coating
titanium dioxide
stirring
parts
copper
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CN 200810117383
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CN101638526A (en
Inventor
李红
郭奋
赵金平
刘艳
王霞
丁艳玲
周建中
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Dragon brand coating (Beijing) Co., Ltd.
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Beijing New Building Material Group Co Ltd
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Abstract

The invention discloses a coating with the function of eliminating formaldehyde, which comprises the follow components in portion by weight: 38 to 40 portions of emulsion, 30 to 35 portions of pigment and filler, 1 to 13 portions of photocatalyst, 0.3 to 0.5 portion of dispersant, 1.5 to 2 portions of film-forming additive, 0.5 portion of flatting agent, 1 portion of thickening agent, 0.04 to 0.06 portion of mold inhibitor, and 25 to 30 portions of water, wherein the photocatalyst is copper-doped titanium dioxide powder. The coating is harmless to people, has no corrosion and steady performance, and has the effect of quickly, efficiently and durably eliminating the formaldehyde under the condition of weak visible light or rays.

Description

A kind of coating and preparation technology thereof with function of eliminating formaldehyde
Technical field
The present invention relates to a kind of have the rapidly and efficiently coating and the preparation technology thereof of function of eliminating formaldehyde; This coating is except having the function that generally coating has such as decoration and protection; The more important thing is and to eliminate formaldehyde gas efficiently; Improving indoor living environment, is a kind of green coating that is more conducive to human health.
Background technology
Room air pollution mainly is to be caused by the air pollutant that upholstery, finishing material discharge; Air pollutant mainly comprise: indoor total volatile organism (TVOC), radon, asbestos and mikrobe etc.; Wherein indoor total volatile organism is main with formaldehyde, benzene and YLENE mainly, and formaldehyde is the most obvious and outstanding to health effects.Since the nineties in 20th century, the room air pollution health hazard becomes one of important environmental problem of national governments and public attention, and wherein the formaldehyde problem is particularly outstanding.
Formaldehyde is a kind of volatile organic compounds, and is colourless, special odor is arranged, and slightly overweights air, soluble in water.Formaldehyde has material impact to HUMAN HEALTH, and eyes, respiratory tract, human body mucous membrane and skin are had the strong impulse effect; Symptoms such as acute poisoning can cause shedding tears, runny nose, cough cause the various respiratory tract disease; Chronic suction lower concentration can cause unrelenting headache, unable, insomnia etc.; Long-term skin exposure can cause dermatitis, and respiratory system, Digestive tract and cns generation detrimentally affect to human body cause lung and liver immunologic dysfunction.Formaldehyde is so serious to human harm, produces the attention that the effective building material product of degradation of formaldehyde has caused building trade.
Coating is a kind of traditional material of construction, and the effect of coating generally is to decorate and protection.But along with upholstery causes atmospheric pollution; Further require traditional material of construction have antibiotic, function such as purify air; Though also occurred air purifying paint in the market; But it is unsatisfactory that the formaldehyde of these air purifying paints is eliminated effect, and need under ultraviolet irradiation, just can play air purification effect.Therefore be not suitable for the elimination of residential building indoor formaldehyde.
Summary of the invention
The purpose of this invention is to provide a kind of coating and preparation technology thereof with function of eliminating formaldehyde.This coating has been realized under the very weak situation of visible light or light, rapidly and efficiently eliminating formaldehyde enduringly.
To achieve these goals, a kind of coating with function of eliminating formaldehyde of the present invention comprises: 38~40 parts of emulsions, 30~35 parts of color stuffings, 1~13 part of photocatalyst, 0.3~0.5 part of dispersion agent, 1.5~2 parts of film coalescence aid, 0.5 part of flow agent, 1 part of thickening material, 0.04~0.06 part of mould inhibitor, 25~30 parts in water; Wherein, said photocatalyst is the copper-doped titanium dioxide powder.
Preferably, the crystal formation of said copper-doped titanium dioxide powder comprises anatase titanium dioxide and rutile-type, and median size is 50~90 nanometers.
Preferably, said emulsion is an ACRYLIC EMULSION.
Preferably, the brushing thickness of said coating is 0.3~0.5 millimeter.
It is following that a kind of light catalyzed coating with function of eliminating formaldehyde of the present invention prepares process:
Step 1: with 20~30 parts water, 0.3~0.5 part dispersion agent, appropriate amount of defoamer, 1.5~2 parts film coalescence aid adds in the there-necked flask successively, stirs;
Step 2: in the above-mentioned solution that stirs, slowly add 1~13 part copper-doped titanium dioxide powder, dispersed with stirring 25~30min obtains aqueous colloidal under the rotating speed of 2000~2500r/min;
Step 3: the above-mentioned dispersion system of stirring at low speed, the while slowly adds 30~35 parts color stuffing, and then high-speed stirring 25~30min makes it to disperse fully;
Step 4: under stirring at low speed, add 38~40 parts emulsion, after stirring, regulate pH value to 8 with an amount of neutralizing agent;
Step 5: add 1~1.5 part thickening material, 0.5~1 part flow agent at last, ageing certain hour after 0.04~0.06 part of mould inhibitor stirs makes optically catalytic TiO 2 coating, and sealing is preserved.
The present invention to people's toxicological harmless, do not have corrosion, stable performance has the effect of under the very weak situation of visible light or light, rapidly and efficiently eliminating formaldehyde enduringly.
Embodiment
Embodiment 1
With 20 parts water, 0.4 part dispersion agent, appropriate amount of defoamer, 2 parts film coalescence aid adds in the there-necked flask successively, stirs; The copper-doped titanium dioxide powder that in the above-mentioned solution that stirs, slowly adds 1 part, dispersed with stirring 30min obtains aqueous colloidal under the rotating speed of 2000r/min; The above-mentioned dispersion system of stirring at low speed, the while slowly adds 35 parts color stuffing, and then high-speed stirring 30min makes it to disperse fully; The ACRYLIC EMULSION that under stirring at low speed, adds 38 parts after stirring, is regulated pH value to 8 with an amount of neutralizing agent; Add 1 part thickening material, 0.5 part flow agent at last, ageing certain hour after 0.04 part of mould inhibitor stirs makes the coating that the present invention has function of eliminating formaldehyde.
The crystal formation of above-mentioned copper-doped titanium dioxide powder comprises anatase titanium dioxide and rutile-type, and median size is 50~90 nanometers.
Standard by GB/T9755-2001 " exterior wall coating material of synthetic resin emulsion " detects homemade light catalyzed coating, and detected result shows that this coating each item traditional performance all reaches standard-required.
By method therefor in the People's Republic of China's building material industry standard " air-cleaning function metope coating material purifying property " this coating being carried out purifying property detects; The brushing thickness of coating is 0.3~0.5 millimeter, and the result shows that the purification efficiency of this coating PARA FORMALDEHYDE PRILLS(91,95) after 48 hours reaches more than 75%; Still can reach more than 60% through 4 days saturation experiments after efficient.Therefore, the present invention has extraordinary air purification effect.
Embodiment 2
Change the amount of photocatalyst, add 13 parts of copper-doped titanium dioxide powder, the technical process of preparation coating is same as embodiment 1; Wherein, water is 30 parts, and dispersion agent is 0.5 part; Skimmer is an amount of, 30 parts of color stuffings, 40 parts of ACRYLIC EMULSIONs; 1.5 parts of film coalescence aid, 0.5 part of flow agent, 1 part of thickening material, 0.06 part of mould inhibitor.
The crystal formation of above-mentioned copper-doped titanium dioxide powder comprises anatase titanium dioxide and rutile-type, and median size is 50~90 nanometers, and its preparation technology is with embodiment 1.
Standard by GB/T9755-2001 " exterior wall coating material of synthetic resin emulsion " detects homemade light catalyzed coating, and detected result shows that this coating each item traditional performance all reaches standard-required.
By method therefor in the People's Republic of China's building material industry standard " air-cleaning function metope coating material purifying property " this coating being carried out purifying property detects; The brushing thickness of coating is 0.3~0.5 millimeter, and the result shows that the purification efficiency of this coating PARA FORMALDEHYDE PRILLS(91,95) after 48 hours reaches more than 75%; Still can reach more than 60% through 4 days saturation experiments after efficient.Therefore, the present invention has extraordinary air purification effect.
Embodiment 3
Change the amount of photocatalyst, add 3 parts of copper-doped titanium dioxide powder, the technical process of preparation coating is same as embodiment 1; Wherein, water is 25 parts, and dispersion agent is 0.4 part, and skimmer is an amount of, 32 parts of color stuffings, 39 parts of ACRYLIC EMULSIONs, 1.7 parts of film coalescence aid, 0.5 part of flow agent, 1 part of thickening material, 0.05 part of mould inhibitor.
The crystal formation of above-mentioned copper-doped titanium dioxide powder comprises anatase titanium dioxide and rutile-type, and median size is 50~90 nanometers, and its preparation technology is with embodiment 1.
Standard by GB/T9755-2001 " exterior wall coating material of synthetic resin emulsion " detects homemade light catalyzed coating, and detected result shows that this coating each item traditional performance all reaches standard-required.
By method therefor in the People's Republic of China's building material industry standard " air-cleaning function metope coating material purifying property " this coating is carried out purifying property and detect, the brushing thickness of coating is that 0.3~0.5 millimeter result shows that the purification efficiency of this coating PARA FORMALDEHYDE PRILLS(91,95) after 48 hours reaches more than 85%; Still can reach more than 65% through 4 days saturation experiments after efficient.Therefore, the present invention has extraordinary air purification effect.
More than being merely preferred embodiment of the present invention, is not to be used to limit protection scope of the present invention.All within spirit of the present invention and principle, any modification of being done, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.

Claims (4)

1. the coating with function of eliminating formaldehyde is characterized in that, comprises following component:
Wherein, said photocatalyst is that median size is the copper-doped titanium dioxide powder of 50~90 nanometers;
Said coating with function of eliminating formaldehyde is prepared from through following steps:
Step 1: 20~30 parts water, 0.3~0.5 part dispersion agent, appropriate amount of defoamer, 1.5~2 parts film coalescence aid are added in the there-necked flask successively, stir;
Step 2: in the above-mentioned solution that stirs, slowly add 1~13 part copper-doped titanium dioxide powder, dispersed with stirring 25~30min obtains aqueous colloidal under the rotating speed of 2000~2500r/min;
Step 3: the above-mentioned dispersion system of stirring at low speed, the while slowly adds 30~35 parts color stuffing, and then high-speed stirring 25~30min makes it to disperse fully;
Step 4: under stirring at low speed, add 38~40 parts emulsion, after stirring, regulate pH value to 8 with an amount of neutralizing agent;
Step 5: add 1 part thickening material, 0.5 part flow agent, 0.04~0.06 part of mould inhibitor back ageing certain hour that stirs at last, make optically catalytic TiO 2 coating, sealing is preserved.
2. coating as claimed in claim 1 is characterized in that, the crystal formation of said copper-doped titanium dioxide powder is anatase titanium dioxide and/or rutile-type.
3. coating as claimed in claim 1 is characterized in that, said emulsion is an ACRYLIC EMULSION.
4. coating as claimed in claim 1 is characterized in that, the brushing thickness of said coating is 0.3~0.5 millimeter.
CN 200810117383 2008-07-30 2008-07-30 Coating with function of eliminating formaldehyde and preparation technology thereof Active CN101638526B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
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Application Number Priority Date Filing Date Title
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CN101638526B true CN101638526B (en) 2012-12-19

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Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101892000A (en) * 2010-07-21 2010-11-24 广州门德纳米科技有限公司 Antibacterial mildew-proof hydrophilic coating, aluminum foil and preparation method thereof
CN101921521A (en) * 2010-08-09 2010-12-22 江苏大象东亚制漆有限公司 Nano-titanium water-based coating having long-acting resistance to formaldehyde
CN101967327A (en) * 2010-09-30 2011-02-09 江苏大象东亚制漆有限公司 Long-acting formaldehyde-resistant water-based crylic acid wood lacquer composite
CN102585622A (en) * 2012-02-17 2012-07-18 广东华兹卜化学工业有限公司 Doped nano titanium dioxide photocatalyst negative ion coating
JP6041170B2 (en) * 2013-06-04 2016-12-07 パナソニックIpマネジメント株式会社 Room temperature curable photocatalyst paint, room temperature curable coating composition and interior material
CN105969007B (en) * 2016-05-24 2018-08-07 南雄市双溪丽盈化工涂料有限公司 A kind of acrylic latex coating and preparation method thereof with air-cleaning function
CN107722757A (en) * 2017-10-23 2018-02-23 周开珍 A kind of light catalyzed coating for degradation of formaldehyde gas and preparation method thereof
CN111330434A (en) * 2020-03-05 2020-06-26 深圳市大桹新材料科技有限公司 Novel composite material with air purifying effect and preparation method thereof
CN111286247A (en) * 2020-04-16 2020-06-16 佛山市三水区康立泰无机合成材料有限公司 Functional environment-friendly coating and preparation method thereof
CN112646433A (en) * 2021-01-27 2021-04-13 张晓峰 Formaldehyde-removing interior decoration coating based on visible light catalysis

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1607231A (en) * 2003-10-15 2005-04-20 上海奥顿特种涂料厂 Paint with sterilization and air-purifying function for internal wall
CN1803949A (en) * 2005-12-27 2006-07-19 上海大学 Building coating material with air purification function and preparation method thereof
CN101037553A (en) * 2007-02-13 2007-09-19 云南大学 Preparation and application method of optical catalysed environment protection type coating

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1607231A (en) * 2003-10-15 2005-04-20 上海奥顿特种涂料厂 Paint with sterilization and air-purifying function for internal wall
CN1803949A (en) * 2005-12-27 2006-07-19 上海大学 Building coating material with air purification function and preparation method thereof
CN101037553A (en) * 2007-02-13 2007-09-19 云南大学 Preparation and application method of optical catalysed environment protection type coating

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Inventor after: Li Hong

Inventor after: Guo Fen

Inventor after: Zhao Jinping

Inventor after: Liu Yan

Inventor after: Wang Xia

Inventor after: Ding Yanling

Inventor after: Zhou Jianzhong

Inventor before: Li Hong

Inventor before: Guo Fen

Inventor before: Zhao Jinping

Inventor before: Liu Yan

Inventor before: Wang Xia

COR Change of bibliographic data

Free format text: CORRECT: INVENTOR; FROM: LI HONG GUO FEN ZHAO JINPING LIU YAN WANG XIA TO: LI HONG GUO FEN ZHAO JINPING LIU YAN WANG XIA DING YANLING ZHOU JIANZHONG

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Effective date of registration: 20170524

Address after: 102209 Beijing city Changping District town of Beiqijia District in the south of the new building materials science and technology in the future industrial R & D Center Hospital

Patentee after: Dragon brand coating (Beijing) Co., Ltd.

Address before: 100037 Haidian District, China, Beijing, No. three river road, a number of building materials, building No. 16, layer 11

Patentee before: Beijing New Building Materials Public Limited Company