CN114806349A - Environment-friendly coating for buildings and preparation method thereof - Google Patents
Environment-friendly coating for buildings and preparation method thereof Download PDFInfo
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- CN114806349A CN114806349A CN202210681701.0A CN202210681701A CN114806349A CN 114806349 A CN114806349 A CN 114806349A CN 202210681701 A CN202210681701 A CN 202210681701A CN 114806349 A CN114806349 A CN 114806349A
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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
- C09D163/00—Coating compositions based on epoxy resins; Coating compositions based on derivatives of epoxy resins
-
- 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
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/20—Diluents or solvents
-
- 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
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/60—Additives non-macromolecular
- C09D7/61—Additives non-macromolecular inorganic
-
- 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
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/65—Additives macromolecular
-
- 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
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/70—Additives characterised by shape, e.g. fibres, flakes or microspheres
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2237—Oxides; Hydroxides of metals of titanium
- C08K2003/2241—Titanium dioxide
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2296—Oxides; Hydroxides of metals of zinc
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/011—Nanostructured additives
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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)
- Inorganic Chemistry (AREA)
- Paints Or Removers (AREA)
Abstract
The invention discloses an environment-friendly coating for buildings and a preparation method thereof, belonging to the technical field of coatings. The environment-friendly coating for buildings comprises the following raw materials: modified epoxy resin material, pigment, filler, gelatin, propylene carbonate, benzyl alcohol, modified acrylate flatting agent, hydroxypropyl methyl cellulose and water; the VOC content of the finally prepared environment-friendly building coating can be 15g/L, the impact resistance can reach 63cm, the aging resistance can reach 2523h, and the coating is not changed after being soaked in a 3% NaCl solution for 7d, which shows that the saline water resistance is good.
Description
Technical Field
The invention relates to the technical field of coatings, in particular to an environment-friendly coating for buildings and a preparation method thereof.
Background
The architectural coating has a decorative function, a protective function, and a habitability improvement function. The specific weight of each function is different depending on the purpose of use. The decoration function is a function of enhancing the appearance value of a building by beautifying the building. The protection function means a function of protecting a building from the influence and destruction of the environment. The content of the protection function requirements of different kinds of protected objects also differs. For example, the indexes required for indoor and outdoor painting are very different. Some buildings have special requirements for mould proofing, fire proofing, heat insulation, corrosion resistance and the like. The inhabitability improvement function is mainly for indoor coating, and is a function for improving inhabitation environment, such as sound insulation, the function and classification of sound-absorbing coating, dewing resistance and the like.
At present, the existing building coating has the problems of difficult solvent volatilization, high solvent residual toxicity, insufficient environmental protection of raw materials, nonuniform dispersion of fillers and the like. For example, CN101362922A discloses a waterborne single-component aliphatic polyurethane floor coating, which has certain wear resistance and weather resistance, but the base material is a waterborne single-component aliphatic polyurethane emulsion, the aging resistance of the coating film is affected without chemical crosslinking, and a cosolvent is added in the preparation process, which increases the content of organic volatile in the coating and affects human health. Therefore, how to obtain an environment-friendly coating with excellent performance is a technical problem to be solved urgently at present.
Disclosure of Invention
The invention aims to provide an environment-friendly coating for buildings and a preparation method thereof, and aims to solve the problems in the prior art.
In order to achieve the purpose, the invention provides the following scheme:
one purpose of the invention is to provide an environment-friendly coating for buildings, which comprises the following raw materials in parts by weight: 85-115 parts of modified epoxy resin material, 30-50 parts of pigment, 15-20 parts of filler, 5-10 parts of gelatin, 5-10 parts of propylene carbonate, 15-20 parts of benzyl alcohol, 0.2-0.5 part of modified acrylate flatting agent, 1.5-2 parts of hydroxypropyl methyl cellulose and 20-30 parts of water.
Further, the modified epoxy resin material comprises the following raw materials in parts by weight: 10-15 parts of bisphenol A epoxy resin, 20-30 parts of bisphenol F epoxy resin, 50-60 parts of dimethyl carbonate and 5-10 parts of titanium dioxide.
Further, the preparation method of the modified epoxy resin material comprises the following steps: mixing bisphenol A epoxy resin and bisphenol F epoxy resin, adding dimethyl carbonate and titanium dioxide, uniformly mixing, performing hot press molding at 100 ℃ and 1.2MPa, curing, and crushing to obtain the modified epoxy resin material.
Further, the curing is performed for 50min at 150 ℃, and the crushing is performed by crushing the material to 50-100 mu m.
In the invention, bisphenol A type epoxy resin and bisphenol F type epoxy resin are selected for reasonable matching, and the epoxy resin is modified by dimethyl carbonate and titanium dioxide, and the dimethyl carbonate is used as a solvent to dissolve the epoxy resin; the titanium dioxide can be dispersed in the epoxy resin material, and plays a role in toughening the epoxy resin material and reducing the content of VOC (volatile organic compounds), so that the modified epoxy resin material has good impact resistance and lower VOC content.
Furthermore, the filler comprises quartz powder, montmorillonite, nano zinc oxide and carbon black, and the addition of the filler is beneficial to improving the elasticity and strength of the epoxy resin, can improve the compatibility of the modified epoxy resin and further plays a certain role in reducing the VOC content.
Further, the fineness of the quartz powder is 800-1000 meshes; the mass ratio of the quartz powder to the montmorillonite to the nano zinc oxide to the carbon black is 5:2:3: 2.
Further, the modified acrylate leveling agent is a fluorine modified acrylate leveling agent, preferably MONENG-1154.
In the invention, the fluorine modified acrylate flatting agent enables the advantages and disadvantages of fluorine and acrylic acid to be complemented, and the modified flatting agent has better surface control capability, no foam stabilization, recoating capability and good shrinkage cavity resistance and substrate wetting capability; not only can promote the flowing and leveling of the coating film, but also can not influence the interlayer adhesive force of the coating film, and has a certain defoaming effect.
The invention also aims to provide a preparation method of the building environment-friendly coating, which comprises the following steps:
mixing the modified epoxy resin material, the pigment, the hydroxypropyl methyl cellulose and the water, stirring for the first time, adding the gelatin, the propylene carbonate, the benzyl alcohol and the modified acrylate flatting agent, stirring for the second time, and finally adding the filler, and stirring for the third time to obtain the environment-friendly coating for the building.
Further, the first stirring is performed at 100r/min for 20 min.
Further, the second stirring is performed at 300r/min for 30 min.
Further, the third stirring is at 300r/min for 20 min.
The invention has the following technical effects:
the environment-friendly coating for buildings is prepared by selecting raw materials such as modified epoxy resin materials, pigments, fillers, gelatin, propylene carbonate, benzyl alcohol, modified acrylate flatting agents, hydroxypropyl methyl cellulose and the like, and matching the raw materials in a reasonable ratio to obtain the environment-friendly coating for buildings with excellent performance. The building environment-friendly coating has the characteristics of low content of volatile organic compounds, excellent impact resistance, aging resistance and salt water resistance, and wide application prospect, and the VOC content can reach 15g/L, the impact resistance can reach 63cm, the aging resistance can reach 2523h, and the coating is not changed after being soaked in a 3% NaCl solution for 7 d.
Detailed Description
Reference will now be made in detail to various exemplary embodiments of the invention, the detailed description should not be construed as limiting the invention but as a more detailed description of certain aspects, features and embodiments of the invention.
It is to be understood that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. Further, for numerical ranges in this disclosure, it is understood that each intervening value, between the upper and lower limit of that range, is also specifically disclosed. Every smaller range between any stated value or intervening value in a stated range and any other stated or intervening value in a stated range is encompassed within the invention. The upper and lower limits of these smaller ranges may independently be included or excluded in the range.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. Although only preferred methods and materials are described herein, any methods and materials similar or equivalent to those described herein can be used in the practice or testing of the present invention. All documents mentioned in this specification are incorporated herein by reference to disclose and describe the methods and/or materials in connection with which the documents are cited. In case of conflict with any incorporated document, the present specification will control.
It will be apparent to those skilled in the art that various modifications and variations can be made in the specific embodiments of the present disclosure without departing from the scope or spirit of the disclosure. Other embodiments will be apparent to those skilled in the art from consideration of the specification. The description and examples are intended to be illustrative only.
As used herein, the terms "comprising," "including," "having," "containing," and the like are open-ended terms that mean including, but not limited to.
In the invention, all raw materials are conventional commercial products.
Example 1
Mixing 12 parts of bisphenol A epoxy resin and 25 parts of bisphenol F epoxy resin, adding 55 parts of dimethyl carbonate and 8 parts of titanium dioxide, uniformly mixing, performing hot press molding at 100 ℃ and 1.2MPa, curing, and crushing to obtain the modified epoxy resin material.
Mixing 100 parts of modified epoxy resin material, 40 parts of pigment, 1.6 parts of hydroxypropyl methyl cellulose and 25 parts of water, stirring for 20min at 100r/min, then adding 6 parts of gelatin, 8 parts of propylene carbonate, 18 parts of benzyl alcohol and 0.3 part of fluorine modified acrylate flatting agent (MONENG-1154), stirring for 30min at 300r/min, finally adding 17 parts of filler (the filler is formed by mixing quartz powder, montmorillonite, nano zinc oxide and carbon black according to the mass ratio of 5:2:3: 2), and stirring for 20min at 300r/min to obtain the environment-friendly coating for buildings.
Example 2
Mixing 10 parts of bisphenol A epoxy resin and 20 parts of bisphenol F epoxy resin, adding 50 parts of dimethyl carbonate and 5 parts of titanium dioxide, uniformly mixing, performing hot press molding at 100 ℃ and 1.2MPa, curing, and crushing to obtain the modified epoxy resin material.
Mixing 85 parts of modified epoxy resin material, 30 parts of pigment, 1.5 parts of hydroxypropyl methyl cellulose and 20 parts of water, stirring for 20min at 100r/min, then adding 5 parts of gelatin, 5 parts of propylene carbonate, 15 parts of benzyl alcohol and 0.2 part of fluorine modified acrylate flatting agent (MONENG-1154), stirring for 30min at 300r/min, finally adding 15 parts of filler (the filler is formed by mixing quartz powder, montmorillonite, nano zinc oxide and carbon black according to the mass ratio of 5:2:3: 2), and stirring for 20min at 300r/min to obtain the environment-friendly coating for buildings.
Example 3
Mixing 15 parts of bisphenol A epoxy resin and 30 parts of bisphenol F epoxy resin, adding 60 parts of dimethyl carbonate and 10 parts of titanium dioxide, uniformly mixing, performing hot press molding at 100 ℃ and 1.2MPa, curing, and crushing to obtain the modified epoxy resin material.
Mixing 115 parts of modified epoxy resin material, 50 parts of pigment, 2 parts of hydroxypropyl methyl cellulose and 30 parts of water, stirring for 20min at 100r/min, adding 10 parts of gelatin, 10 parts of propylene carbonate, 20 parts of benzyl alcohol and 0.5 part of fluorine modified acrylate flatting agent (MONENG-1154), stirring for 30min at 300r/min, finally adding 20 parts of filler (the filler is formed by mixing quartz powder, montmorillonite, nano zinc oxide and carbon black according to the mass ratio of 5:2:3: 2), and stirring for 20min at 300r/min to obtain the environment-friendly coating for buildings.
Comparative example 1
The difference from example 2 is that no bisphenol F type epoxy resin was used.
Comparative example 2
The difference from example 2 is that the bisphenol A type epoxy resin and the bisphenol F type epoxy resin were not modified and were mixed with other raw materials as they were.
Comparative example 3
The same as example 2 except that the fluorine-modified acrylate leveling agent was replaced with an acrylate leveling agent.
Comparative example 4
The difference from example 2 is that 17 parts of the filler was replaced with 5 parts of the filler.
Comparative example 5
The difference from example 2 is that the hot press molding was carried out at 80 ℃ under 1 MPa.
Comparative example 6
The same as example 2, except that all the raw materials were directly mixed and stirred at 100r/min for 1 h.
Comparative example 7
The difference from example 2 is that 60 parts of modified epoxy resin material is added.
Comparative example 8
The difference from example 2 is that 1 part of the fluorine-modified acrylate leveling agent was added.
Effect verification
The architectural environment-friendly paint of each example and each comparative example was subjected to a performance test, the Volatile Organic Compound (VOC) content was measured according to GB/T18582-2020, the impact resistance was measured according to GB/T1732-2020, the aging resistance and the salt water resistance were measured according to a conventional method, and the results are shown in Table 1.
TABLE 1
As can be seen from Table 1, the VOC content of the environment-friendly coating for buildings can be 15g/L, the impact resistance can reach 63cm, the aging resistance can reach 2523h, and the coating is not changed after being soaked in a 3% NaCl solution for 7d, which shows that the saline water resistance is good.
The above-described embodiments are merely illustrative of the preferred embodiments of the present invention, and do not limit the scope of the present invention, and various modifications and improvements of the technical solutions of the present invention can be made by those skilled in the art without departing from the spirit of the present invention, and the technical solutions of the present invention are within the scope of the present invention defined by the claims.
Claims (10)
1. The environment-friendly coating for buildings is characterized by comprising the following raw materials in parts by weight: 85-115 parts of modified epoxy resin material, 30-50 parts of pigment, 15-20 parts of filler, 5-10 parts of gelatin, 5-10 parts of propylene carbonate, 15-20 parts of benzyl alcohol, 0.2-0.5 part of modified acrylate flatting agent, 1.5-2 parts of hydroxypropyl methyl cellulose and 20-30 parts of water.
2. The environment-friendly building coating as claimed in claim 1, wherein the modified epoxy resin material comprises the following raw materials in parts by weight: 10-15 parts of bisphenol A epoxy resin, 20-30 parts of bisphenol F epoxy resin, 50-60 parts of dimethyl carbonate and 5-10 parts of titanium dioxide.
3. The environment-friendly building coating as claimed in claim 2, wherein the modified epoxy resin material is prepared by a method comprising the following steps: mixing bisphenol A epoxy resin and bisphenol F epoxy resin, adding dimethyl carbonate and titanium dioxide, uniformly mixing, performing hot press molding at 100 ℃ and 1.2MPa, curing, and crushing to obtain the modified epoxy resin material.
4. The environment-friendly building coating as defined in claim 1, wherein the filler comprises quartz powder, montmorillonite, nano zinc oxide and carbon black.
5. The environment-friendly building coating as claimed in claim 4, wherein the fineness of the quartz powder is 800-1000 meshes; the mass ratio of the quartz powder to the montmorillonite to the nano zinc oxide to the carbon black is 5:2:3: 2.
6. The environment-friendly building coating as claimed in claim 1, wherein the modified acrylate leveling agent is a fluorine-modified acrylate leveling agent.
7. The preparation method of the building environment-friendly paint as claimed in any one of claims 1 to 6, characterized by comprising the following steps:
mixing the modified epoxy resin material, the pigment, the hydroxypropyl methyl cellulose and the water, stirring for the first time, adding the gelatin, the propylene carbonate, the benzyl alcohol and the modified acrylate flatting agent, stirring for the second time, and finally adding the filler, and stirring for the third time to obtain the environment-friendly coating for the building.
8. The method of claim 7, wherein the first stirring is performed at 100r/min for 20 min.
9. The method of claim 7, wherein the second stirring is performed at 300r/min for 30 min.
10. The method of claim 7, wherein the third stirring is at 300r/min for 20 min.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210681701.0A CN114806349A (en) | 2022-06-15 | 2022-06-15 | Environment-friendly coating for buildings and preparation method thereof |
| PCT/CN2022/108486 WO2023240757A1 (en) | 2022-06-15 | 2022-07-28 | Environment-friendly coating for buildings and preparation method therefor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210681701.0A CN114806349A (en) | 2022-06-15 | 2022-06-15 | Environment-friendly coating for buildings and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114806349A true CN114806349A (en) | 2022-07-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210681701.0A Pending CN114806349A (en) | 2022-06-15 | 2022-06-15 | Environment-friendly coating for buildings and preparation method thereof |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN114806349A (en) |
| WO (1) | WO2023240757A1 (en) |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103866607B (en) * | 2014-03-25 | 2016-03-02 | 广州慧谷化学有限公司 | A kind of high-strength direct is aluminized aqueous basecoat and its preparation method and application |
| CN106589899A (en) * | 2016-11-28 | 2017-04-26 | 河南同伟建材有限公司 | Elastic material laid on ground of indoor gym |
| CN108047891A (en) * | 2018-01-25 | 2018-05-18 | 吉林重通成飞新材料股份公司 | A kind of coating and preparation method thereof |
| CN109233390B (en) * | 2018-08-30 | 2020-09-01 | 赣州市犇牛防水建材有限公司 | Environment-friendly epoxy resin coating for buildings |
| CN111534208A (en) * | 2020-06-12 | 2020-08-14 | 安徽开林新材料股份有限公司 | Preparation process of coastal building anticorrosive paint |
-
2022
- 2022-06-15 CN CN202210681701.0A patent/CN114806349A/en active Pending
- 2022-07-28 WO PCT/CN2022/108486 patent/WO2023240757A1/en unknown
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| Publication number | Publication date |
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| WO2023240757A1 (en) | 2023-12-21 |
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