WO2018209799A1 - Revêtement d'élimination de formaldéhyde et antimoisissure pour matériaux pour filtre et procédé de préparation associé - Google Patents

Revêtement d'élimination de formaldéhyde et antimoisissure pour matériaux pour filtre et procédé de préparation associé Download PDF

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Publication number
WO2018209799A1
WO2018209799A1 PCT/CN2017/093753 CN2017093753W WO2018209799A1 WO 2018209799 A1 WO2018209799 A1 WO 2018209799A1 CN 2017093753 W CN2017093753 W CN 2017093753W WO 2018209799 A1 WO2018209799 A1 WO 2018209799A1
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WO
WIPO (PCT)
Prior art keywords
parts
filter material
aldehyde
coating
formaldehyde
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Application number
PCT/CN2017/093753
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English (en)
Chinese (zh)
Inventor
肖永祥
施志泉
Original Assignee
南通美亚新型活性炭制品有限公司
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Application filed by 南通美亚新型活性炭制品有限公司 filed Critical 南通美亚新型活性炭制品有限公司
Publication of WO2018209799A1 publication Critical patent/WO2018209799A1/fr

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    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D1/00—Coating compositions, e.g. paints, varnishes or lacquers, based on inorganic substances
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
    • C09D5/14—Paints containing biocides, e.g. fungicides, insecticides or pesticides

Definitions

  • the invention relates to the field of aldehyde removal technology, in particular to an aldehyde-removing mold-proof coating for a filter material and a preparation method thereof.
  • Air purifiers also known as "air cleaners", air purifiers, purifiers, are capable of adsorbing, decomposing or converting various air pollutants (generally including PM2.5, dust, pollen, odor, formaldehyde, etc.). , bacteria, allergens, etc., products that effectively improve air cleanliness, mainly divided into household, commercial, industrial, and building.
  • air pollutants generally including PM2.5, dust, pollen, odor, formaldehyde, etc.
  • bacteria, allergens, etc. products that effectively improve air cleanliness, mainly divided into household, commercial, industrial, and building.
  • Formaldehyde is a small molecule that is volatile and highly polar, and has high toxicity and is very harmful to humans.
  • domestic interior decoration materials such as phenolic, urea-formaldehyde and melamine-formaldehyde resin adhesives are widely used.
  • the hot pressing time is shortened, resulting in high formaldehyde emission, and releasing a large amount of free formaldehyde in the indoor closed environment, which is harmful to the human body.
  • the surface catalyzed aldehyde reaction of the powder greatly accelerates the fixation of formaldehyde, which not only solves the above problems, but also It is also extremely convenient to apply after being made into a coating. It is a new type of high performance aldehyde removal coating.
  • air purification technologies include: adsorption technology, negative (positive) ion technology, catalytic technology, photocatalytic technology, superstructure photomineralization technology, HEPA high efficiency filtration technology, electrostatic dust collection technology, etc.; material technology mainly includes: photocatalyst, activated carbon, Synthetic fiber, HEAP high efficiency material, negative ion generator, etc.
  • the existing air purifiers are mostly compounded, that is, a plurality of purification technologies and material media are simultaneously used.
  • Air purifiers are widely used in households, especially in the indoor environment after home decoration, there is a large amount of formaldehyde, dust, etc., which poses potential harm to the human body.
  • the use of air purifiers can greatly shorten the emission time of harmful gases.
  • the filter screen of the air purifier since the filter screen of the air purifier is in direct contact with the outside air for a long time, the residual of harmful substances is easily generated on the surface of the filter screen, and the filter screen is disposed inside the device, which is difficult to clean, resulting in deposition of harmful substances. Filter the net, which in turn causes secondary pollution of indoor air.
  • aldehyde-removing coatings were generally only suitable for indoor wall paints, and a large construction area was required to achieve better results.
  • the object of the present invention is to provide an effective solution for reducing the deposition of harmful substances, avoiding secondary pollution of indoor air by the air purifier during use, optimizing the air purification effect, and improving the use efficiency of the device to solve the problems raised in the above background art.
  • a aldehyde-removing and anti-mold coating for a filter material which is composed of the following components by weight: 50-65 parts of water, 10-15 parts of pseudo-boehmite, zeolite 10-15 parts of powder, thickener: sodium carboxymethyl cellulose 0.2-0.4 parts of self-crosslinking acrylic emulsion 5-8 parts, 4-7 parts of amine aldehyde removal agent, 3-5 parts of activated carbon or water-based color paste 5-7 parts, 0.5-0.7 parts of antibacterial agent.
  • the pseudoboehmite is an aluminum hydroxide dry glue containing 400-800 mesh through holes.
  • the zeolite powder is a natural mordenite or synthetic faujasite powder having a particle size of 400-800 mesh.
  • the activated carbon has a particle size of from 600 to 800 mesh.
  • the antibacterial agent is polyhexamethylene monophosphonium phosphate.
  • the amine deacetalizer is 2-imidazolidinone.
  • the self-crosslinking acrylic emulsion is a one-component thermally self-crosslinking acrylic emulsion.
  • the method for preparing the filter material for removing aldehyde and mildewproof paint comprises the following steps:
  • the invention effectively reduces the deposition of harmful substances, prevents the air purifier from polluting the indoor air twice during use, optimizes the air purification effect, and improves the equipment use efficiency.
  • the invention imparts an excellent initial formaldehyde purification rate and a high cumulative purification amount to an activated carbon filter material or a common non-woven fabric and a paper substrate which do not have good formaldehyde purification ability, and increases the raw material cost.
  • the spraying process is simple and the material added value is high.
  • the aldehyde-free mildew-proof coating of the present invention has a low-density, high-specific surface area zeolite powder, and the pseudo-boehmite dry powder can uniformly load 2-imidazolidinone or other amine-containing compound to provide a large reaction area. It is easy to react with formaldehyde.
  • the Lewis acid group on the surface of the zeolite and the pseudoboehmite catalyzes the condensation of the aldehyde amine, making the reaction more rapid.
  • the amount of emulsion added is small, the amount of emulsion is rare, and it is not easy to form a film when it is dry. It forms a point bond after heating, and self-crosslinks. After curing, the coating layer is loose and porous, the gas is more easily penetrated, and is resistant to water.
  • the prepared paint and color paste can have a plurality of colors, and the organic content is small, odorless, and the spray-drying process is simple.
  • the invention provides a technical solution: a aldehyde-removing and anti-mold coating for a filter material, which is composed of the following components by weight: 50-65 parts of water, 10-15 parts of pseudo-boehmite, zeolite powder 10-15 , thickener: sodium carboxymethyl cellulose 0.2-0.4 parts of self-crosslinking acrylic emulsion 5-8 parts, 4-7 parts of amine deacetal, 3-5 parts of activated carbon or 5-7 parts of aqueous paste , antibacterial agent 0.5-0.7 parts.
  • the pseudo-boehmite is 400-800 mesh
  • the aluminum hydroxide dry glue containing the mesopores and large pores functions to adsorb the amine deodorant dispersed in water, thereby improving the surface area of the reaction and having a catalytic effect.
  • 400-800 mesh zeolite powder is natural mordenite or synthetic faujasite Powder, role: adsorption of amine deodorizer dispersed in water, improve the surface area of the reaction, while having a catalytic effect.
  • the antibacterial agent is polyhexamethylene monophosphonium phosphate.
  • the amine deacetal is 2-imidazolidinone, which is inexpensive and odorless.
  • the self-crosslinking acrylic emulsion is a one-component thermal self-crosslinking acrylic emulsion, which does not contain APEO, has a tg of about 25 degrees Celsius, does not form a film after curing at room temperature, forms a point bond after heating and self-crosslinks, so that the coating has water resistance.
  • the substrate 120X120X10mm, 5mm ⁇ high activated carbon paper corrugated substrate, 20g.
  • the activated carbon corrugated substrate was dipped in the coating, weighed after drying, and the material was weighted to 32 g.
  • the activated carbon corrugated substrate or the corrugated after the coating is dried, and is fixed on the 12038 fan after regaining moisture.
  • the attenuated experimental sample was taken out and allowed to stand at room temperature for 24 hours.
  • Attenuation efficiency experiment The test was again performed under the initial efficiency condition, and the data was recorded with a formaldehyde detector.
  • the invention imparts an excellent initial formaldehyde purification rate and a high cumulative purification amount to an activated carbon filter material or a common non-woven fabric and a paper substrate which do not have good formaldehyde purification ability, increases the raw material cost, and has a simple spraying process and a material added value. high.
  • Low-density, high specific surface area zeolite powder, pseudo-boehmite dry powder can uniformly load 2-imidazolidinone or other amine-containing compounds, providing a large reaction area and easy to react with formaldehyde.
  • the Lewis acid group on the surface of the zeolite and the pseudoboehmite catalyzes the condensation of the aldehyde amine, making the reaction more rapid.
  • the amount of emulsion added is small, the amount of emulsion is rare, and it is not easy to form a film when it is dry. It forms a point bond after heating, and self-crosslinks. After curing, the coating layer is loose and porous, the gas is more easily penetrated, and is resistant to water.
  • the prepared paint and color paste can have a plurality of colors, and the organic content is small and odorless. Spray-drying process is simple,
  • the coating-coated corrugated filter material After actual measurement, the coating-coated corrugated filter material has a high formaldehyde removal rate and a high cumulative purification amount. Simple process, very suitable for indoor

Landscapes

  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Wood Science & Technology (AREA)
  • Organic Chemistry (AREA)
  • Plant Pathology (AREA)
  • Inorganic Chemistry (AREA)
  • Disinfection, Sterilisation Or Deodorisation Of Air (AREA)
  • Solid-Sorbent Or Filter-Aiding Compositions (AREA)

Abstract

L'invention concerne un revêtement d'élimination de formaldéhyde et antimoisissure pour matériaux pour filtre, constitué par les constituants suivants, en parties en poids : 50-65 parties d'eau ; 10-15 parties de pseudo-boehmite ; 10-15 parties de poudre de zéolite ; un agent épaississant constitué par 0,2-0,4 partie de carboxyméthylcellulose sodique ; 5-8 parties d'une émulsion acrylique à autoréticulation ; 4-7 parties d'un agent d'élimination de formaldéhyde à base d'amine ; 3-5 parties de charbon actif ou 5-7 parties d'une pâte pigmentaire aqueuse ; et 0,5-0,7 partie d'un agent antibactérien. Le revêtement est préparé par agitation et mélange des constituants dans une certaine séquence jusqu'à ce qu'il soit uniforme. Le revêtement préparé est pulvérisé sur un matériau pour filtre à air ou appliqué sur un matériau pour filtre à air par l'intermédiaire d'un revêtement par immersion, puis le matériau pour filtre est séché à 80-110°C, de telle sorte qu'un matériau pour filtre courant peut avoir l'effet d'élimination de formaldéhyde.
PCT/CN2017/093753 2017-05-17 2017-07-20 Revêtement d'élimination de formaldéhyde et antimoisissure pour matériaux pour filtre et procédé de préparation associé WO2018209799A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201710347769.4A CN107903666A (zh) 2017-05-17 2017-05-17 一种滤材用除醛防霉涂料及制备方法
CN201710347769.4 2017-05-17

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WO2018209799A1 true WO2018209799A1 (fr) 2018-11-22

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WO (1) WO2018209799A1 (fr)

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CN112646449B (zh) * 2019-10-12 2022-03-29 宁波方太厨具有限公司 一种水性涂料及其制备方法和应用
CN112191024B (zh) * 2020-09-25 2023-01-31 佛山市顺德区阿波罗环保器材有限公司 一种空气过滤网及其制备方法和用途
CN115300856A (zh) * 2021-05-07 2022-11-08 上海劲果环保科技有限公司 一种甲醛清除剂
CN115418863B (zh) * 2022-10-13 2024-05-24 佛山市顺德区阿波罗环保器材有限公司 湿度调节用复合材料及其制备方法和湿度调节设备

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CN105667004A (zh) * 2016-01-29 2016-06-15 方存仁 一种原位消除室内化学污染的方法
CN106661370A (zh) * 2014-07-15 2017-05-10 阿克佐诺贝尔国际涂料股份有限公司 包含至少两种含盐共聚物的抗污涂覆组合物

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CN103450752A (zh) * 2013-08-22 2013-12-18 吴江市物华五金制品有限公司 防霉调湿涂料及其制备方法
CN105754425A (zh) * 2016-04-15 2016-07-13 刘云 一种甲醛吸附水性环保涂料
CN105802414A (zh) * 2016-04-15 2016-07-27 刘云 一种甲醛吸附水性环保涂料的制备方法
CN106268632A (zh) * 2016-07-19 2017-01-04 浙江绿冠环保科技有限公司 一种生物炭光触媒甲醛净化剂及其制备方法

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CN104689708A (zh) * 2015-03-20 2015-06-10 陶猛 一种基于斜孔铝蜂窝板除甲醛空气净化滤芯及其制备方法
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