CN114561136A - Environment-friendly antibacterial mildew-resistant coating and production process thereof - Google Patents

Environment-friendly antibacterial mildew-resistant coating and production process thereof Download PDF

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Publication number
CN114561136A
CN114561136A CN202210445070.2A CN202210445070A CN114561136A CN 114561136 A CN114561136 A CN 114561136A CN 202210445070 A CN202210445070 A CN 202210445070A CN 114561136 A CN114561136 A CN 114561136A
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parts
environment
agent
coating
friendly antibacterial
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Inventor
李宏伟
苏怀武
高威
庞新厂
付建伟
陈加福
赵伟
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Henan Lanling Huanke Waterproof Material Co ltd
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Henan Lanling Huanke Waterproof Material Co ltd
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Priority to CN202210445070.2A priority Critical patent/CN114561136A/en
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    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09DCOATING 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
    • C09D133/00Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Coating compositions based on derivatives of such polymers
    • C09D133/04Homopolymers or copolymers of esters
    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09DCOATING 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
    • C09D125/00Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an aromatic carbocyclic ring; Coating compositions based on derivatives of such polymers
    • C09D125/02Homopolymers or copolymers of hydrocarbons
    • C09D125/04Homopolymers or copolymers of styrene
    • C09D125/08Copolymers of styrene
    • C09D125/14Copolymers of styrene with unsaturated esters
    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09DCOATING 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
    • C09D5/00Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
    • C09D5/14Paints containing biocides, e.g. fungicides, insecticides or pesticides
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08KUse of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00Use of inorganic substances as compounding ingredients
    • C08K3/18Oxygen-containing compounds, e.g. metal carbonyls
    • C08K3/20Oxides; Hydroxides
    • C08K3/22Oxides; Hydroxides of metals
    • C08K2003/2296Oxides; Hydroxides of metals of zinc

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  • 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)
  • Paints Or Removers (AREA)

Abstract

The invention belongs to the field of coatings, and particularly relates to an environment-friendly antibacterial mildew-resistant coating and a production process thereof, wherein the environment-friendly antibacterial mildew-resistant coating comprises the following raw materials in parts by weight: 24-30 parts of water, 0.3-0.5 part of cellulose, 0.5-0.8 part of dispersing agent, 0.1-0.3 part of water-based wetting agent, 0.2-2 parts of antibacterial mildew preventive, 15-20 parts of titanium dioxide, 7-10 parts of kaolin, 10-15 parts of calcium carbonate, 6-15 parts of diatomite, 1-3 parts of superfine zinc oxide, 18-25 parts of emulsion, 0.5-1 part of anti-freezing agent, 0.5-1 part of film-forming auxiliary agent and 0.4-0.7 part of defoaming agent. According to the invention, the superfine zinc oxide powder is added, so that the mould and bacteria can be synergistically prevented, indoor formaldehyde can be efficiently removed, and the effect of purifying the indoor environment is jointly realized; the natural plant components and the inorganic nano material are utilized to perform mildew prevention, antibiosis and aldehyde removal, so that the coating is healthier and more environment-friendly, and the coating can not mildew and has the effects of antibiosis and sterilization through the compound system.

Description

Environment-friendly antibacterial mildew-resistant coating and production process thereof
Technical Field
The invention belongs to the field of coatings, and particularly relates to an environment-friendly antibacterial and mildewproof coating and a production process thereof.
Background
With the continuous improvement of the functional requirements of the market on products and the continuous deepening of research and development of antibacterial materials by people, the antibacterial aqueous polyurethane coating has increasingly received the attention of consumers at home and abroad, and because the aqueous polyurethane coating contains macromolecular resin, color paste, auxiliary agents, water and the like, the aqueous polyurethane coating is very easy to be polluted by microorganisms to cause mildew, color change and the like.
Disclosure of Invention
The invention aims to provide an environment-friendly antibacterial and mildewproof coating and a production process thereof.
The environment-friendly antibacterial mildew-resistant coating is characterized by comprising the following raw materials in parts by weight: 24-30 parts of water, 0.3-0.5 part of cellulose, 0.5-0.8 part of dispersing agent, 0.1-0.3 part of water-based wetting agent, 0.2-2 parts of antibacterial mildew preventive, 15-20 parts of titanium dioxide, 7-10 parts of kaolin, 10-15 parts of calcium carbonate, 6-15 parts of diatomite, 1-3 parts of superfine zinc oxide, 18-25 parts of emulsion, 0.5-1 part of anti-freezing agent, 0.5-1 part of film-forming auxiliary agent and 0.4-0.7 part of defoaming agent.
Preferably, the cellulose is hydroxyethyl cellulose.
Preferably, the emulsion is styrene-acrylic emulsion or pure acrylic emulsion.
Preferably, the aqueous wetting agent is TD-3070.
Preferably, the antibacterial and mildewproof agent is EG-CF bactericide.
Preferably, the defoaming agent is CF-1511 or CF-16.
Preferably, the film-forming assistant is an alcohol ester film-forming assistant.
A production process of an environment-friendly antibacterial mildew-proof coating comprises the following steps:
s1, sequentially adding water and hydroxyethyl cellulose to disperse for 2-4 min at a rotating speed of less than 600rpm of a reaction kettle;
s2, keeping the rotating speed of the reaction kettle unchanged, adding an antibacterial mildew preventive, and dispersing for 2-5 min;
s3, increasing the rotating speed of the reaction kettle to 600-1000 rpm, sequentially adding a wetting agent, a dispersing agent, a defoaming agent, titanium dioxide, kaolin, calcium carbonate, diatomite and superfine zinc oxide, increasing the rotating speed of the reaction kettle to 1200-1500 rpm, and dispersing for 15-25 min;
and S4, adjusting the rotating speed of the reaction kettle to 700-1000 rpm, sequentially adding the emulsion, the antifreezing agent and the film-forming auxiliary agent, and continuously stirring for 10-15 min to obtain the finished product of the environment-friendly antibacterial and mildewproof coating.
Compared with the prior art, the invention has the beneficial effects that:
according to the invention, the superfine zinc oxide powder is added, so that mildew prevention and antibiosis can be cooperatively carried out, indoor formaldehyde can be efficiently removed, and the effect of purifying indoor environment is jointly realized; the natural plant components and the inorganic nano material are utilized to perform mildew prevention, antibiosis and aldehyde removal, so that the coating is healthier and more environment-friendly, and the coating can not mildew and has the effects of antibiosis and sterilization through the compound system.
Detailed Description
In order to facilitate an understanding of the present invention, the present invention will be described more fully with reference to the following examples. The present invention may be embodied in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
Example 1
The environment-friendly antibacterial mildew-resistant coating comprises the following components in parts by weight: 24 parts of water, 0.3 part of hydroxyethyl cellulose, 0.5 part of dispersing agent (quick and easy), 0.1 part of water-based wetting agent (TD-3070), 0.2 part of antibacterial mildew preventive (EG-CF), 15 parts of titanium dioxide, 7 parts of kaolin, 10 parts of calcium carbonate, 6 parts of diatomite, 1 part of superfine zinc oxide, 18 parts of emulsion, 0.5 part of antifreezing agent, 0.5 part of alcohol ester film forming aid and 0.4 part of defoaming agent (CF-1511).
The production process comprises the following steps:
1. sequentially adding water and hydroxyethyl cellulose at a rotating speed of less than 600rpm of the reaction kettle, and dispersing for 2-4 min;
2. keeping the rotating speed of the reaction kettle unchanged, adding a natural plant antibacterial mildew preventive, and dispersing for 2-5 min;
3. increasing the rotating speed of the reaction kettle to 600-1000 rpm, sequentially adding a wetting agent, a dispersing agent, a defoaming agent, titanium dioxide, kaolin, calcium carbonate, diatomite and superfine zinc oxide, increasing the rotating speed of the reaction kettle to 1200-1500 rpm, and dispersing for 15-25 min;
4. and adjusting the rotating speed of the reaction kettle to 700-1000 rpm, sequentially adding the emulsion, the antifreezing agent and the film-forming assistant, and continuously stirring for 10-15 min to obtain the finished product of the environment-friendly antibacterial and mildewproof coating.
Example 2
The environment-friendly antibacterial mildew-resistant coating comprises the following components in parts by weight: 30 parts of water, 0.5 part of hydroxyethyl cellulose, 0.8 part of a dispersing agent (quick and easy), 0.3 part of a water-based wetting agent (TD-3070), 2 parts of an antibacterial mildew preventive (EG-CF), 20 parts of titanium dioxide, 10 parts of kaolin, 15 parts of calcium carbonate, 15 parts of diatomite, 3 parts of superfine zinc oxide, 25 parts of emulsion, 1 part of an antifreezing agent, 1 part of an alcohol ester film-forming aid and 0.7 part of a defoaming agent (CF-16).
The production process comprises the following steps:
1. sequentially adding water and hydroxyethyl cellulose at a rotating speed of less than 600rpm of the reaction kettle, and dispersing for 2-4 min;
2. keeping the rotating speed of the reaction kettle unchanged, adding a natural plant antibacterial mildew preventive, and dispersing for 2-5 min;
3. increasing the rotating speed of the reaction kettle to 600-1000 rpm, sequentially adding a wetting agent, a dispersing agent, a defoaming agent, titanium dioxide, kaolin, calcium carbonate, diatomite and superfine zinc oxide, increasing the rotating speed of the reaction kettle to 1200-1500 rpm, and dispersing for 15-25 min;
4. and adjusting the rotating speed of the reaction kettle to 700-1000 rpm, sequentially adding the emulsion, the antifreezing agent and the film-forming assistant, and continuously stirring for 10-15 min to obtain the finished product of the environment-friendly antibacterial mildew-proof coating.
Example 3
The environment-friendly antibacterial mildew-resistant coating comprises the following components in parts by weight: 28 parts of water, 0.4 part of hydroxyethyl cellulose, 0.6 part of a dispersing agent (quick and easy), 0.2 part of a water-based wetting agent (TD-3070), 1.5 parts of an antibacterial mildew preventive (EG-CF), 18 parts of titanium dioxide, 9 parts of kaolin, 12 parts of calcium carbonate, 10 parts of diatomite, 2 parts of superfine zinc oxide, 20 parts of emulsion, 0.7 part of an antifreezing agent, 0.8 part of an alcohol ester film-forming aid and 0.6 part of a defoaming agent (CF-1511).
The production process comprises the following steps:
1. sequentially adding water and hydroxyethyl cellulose at a rotating speed of less than 600rpm of the reaction kettle, and dispersing for 2-4 min;
2. keeping the rotating speed of the reaction kettle unchanged, adding a natural plant antibacterial mildew preventive, and dispersing for 2-5 min;
3. increasing the rotating speed of the reaction kettle to 600-1000 rpm, sequentially adding a wetting agent, a dispersing agent, a defoaming agent, titanium dioxide, kaolin, calcium carbonate, diatomite and superfine zinc oxide, increasing the rotating speed of the reaction kettle to 1200-1500 rpm, and dispersing for 15-25 min;
4. and adjusting the rotating speed of the reaction kettle to 700-1000 rpm, sequentially adding the emulsion, the antifreezing agent and the film-forming assistant, and continuously stirring for 10-15 min to obtain the finished product of the environment-friendly antibacterial and mildewproof coating.
Comparative example 1
The composition and preparation method of this comparative example were different from those of example 1 in that a styrene-acrylic emulsion was used as the emulsion.
Comparative example 2
The composition and preparation of this comparative example differed from example 1 in that the emulsion used was a pure acrylic emulsion.
Comparative example 3
The composition and preparation method of this comparative example were different from those of example 1 in that the emulsion used was vinyl acetate emulsion.
Test example 1
The performance of examples 1-3 and comparative examples 1-3 of the invention are compared, wherein the low-temperature film forming property, the alkali resistance and the scrubbing resistance are referred to the national standard GB/T9756-; the antibacterial and mildewproof test is referred to HG/T3950-2007.
The properties of the coatings produced in the examples are given in the following table:
Figure DEST_PATH_IMAGE001
as can be seen from the above table, the water-based paint prepared by the invention does not go moldy and has the antibacterial and bactericidal effects.
The action mechanism of the invention is as follows: according to the invention, the superfine zinc oxide powder is added, so that the mould and bacteria can be synergistically prevented, indoor formaldehyde can be efficiently removed, and the effect of purifying the indoor environment is jointly realized; the natural plant components and the inorganic nano material are utilized to perform mildew prevention, antibiosis and aldehyde removal, so that the coating is healthier and more environment-friendly, and the coating can not mildew and has the effects of antibiosis and sterilization through the compound system.
The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, several modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.

Claims (8)

1. The environment-friendly antibacterial mildew-resistant coating is characterized by comprising the following raw materials in parts by weight: 24-30 parts of water, 0.3-0.5 part of cellulose, 0.5-0.8 part of dispersing agent, 0.1-0.3 part of water-based wetting agent, 0.2-2 parts of antibacterial mildew preventive, 15-20 parts of titanium dioxide, 7-10 parts of kaolin, 10-15 parts of calcium carbonate, 6-15 parts of diatomite, 1-3 parts of superfine zinc oxide, 18-25 parts of emulsion, 0.5-1 part of anti-freezing agent, 0.5-1 part of film-forming auxiliary agent and 0.4-0.7 part of defoaming agent.
2. The environment-friendly antibacterial and mildewproof coating as claimed in claim 1, wherein the cellulose is hydroxyethyl cellulose.
3. The environment-friendly antibacterial and mildewproof coating as claimed in claim 1, wherein the emulsion is styrene-acrylic emulsion or acrylic emulsion.
4. The environment-friendly antibacterial and mildewproof coating as claimed in claim 1, wherein the aqueous wetting agent is TD-3070.
5. The environment-friendly antibacterial and mildewproof coating as claimed in claim 1, wherein the antibacterial and mildewproof agent is EG-CF bactericide.
6. The environment-friendly antibacterial and mildewproof coating as claimed in claim 1, wherein the antifoaming agent is CF-1511 or CF-16.
7. The environment-friendly antibacterial and mildewproof coating as claimed in claim 1, wherein the film forming assistant is an alcohol ester film forming assistant.
8. The production process of the environment-friendly antibacterial and mildewproof coating as claimed in any one of claims 1 to 7, comprising the following steps:
s1, sequentially adding water and hydroxyethyl cellulose to disperse for 2-4 min at a rotating speed of less than 600rpm of a reaction kettle;
s2, keeping the rotating speed of the reaction kettle unchanged, adding a natural plant antibacterial mildew preventive, and dispersing for 2-5 min;
s3, increasing the rotating speed of the reaction kettle to 600-1000 rpm, sequentially adding a wetting agent, a dispersing agent, a defoaming agent, titanium dioxide, kaolin, calcium carbonate, diatomite and superfine zinc oxide, increasing the rotating speed of the reaction kettle to 1200-1500 rpm, and dispersing for 15-25 min;
and S4, adjusting the rotating speed of the reaction kettle to 700-1000 rpm, sequentially adding the emulsion, the antifreezing agent and the film-forming auxiliary agent, and continuously stirring for 10-15 min to obtain the finished product of the environment-friendly antibacterial and mildewproof coating.
CN202210445070.2A 2022-04-26 2022-04-26 Environment-friendly antibacterial mildew-resistant coating and production process thereof Pending CN114561136A (en)

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JP2005281299A (en) * 2004-03-01 2005-10-13 Paratex Japan:Kk Antibacterial/mildewproofing agent and coating material composition using the same
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CN104592841A (en) * 2014-12-30 2015-05-06 三棵树涂料股份有限公司 Inorganic antibacterial formaldehyde-removing paint and preparation method thereof
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WO2018121509A1 (en) * 2016-12-30 2018-07-05 苏州律点信息科技有限公司 Formaldehyde adsorbing building coating
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Application publication date: 20220531