CN106854414B - Water-based epoxy primer for heat-insulating decorative composite board - Google Patents
Water-based epoxy primer for heat-insulating decorative composite board Download PDFInfo
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- CN106854414B CN106854414B CN201611040330.9A CN201611040330A CN106854414B CN 106854414 B CN106854414 B CN 106854414B CN 201611040330 A CN201611040330 A CN 201611040330A CN 106854414 B CN106854414 B CN 106854414B
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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
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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
- 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
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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
- 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
- C09D7/63—Additives non-macromolecular organic
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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
- 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
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
- E04F13/00—Coverings or linings, e.g. for walls or ceilings
- E04F13/07—Coverings or linings, e.g. for walls or ceilings composed of covering or lining elements; Sub-structures therefor; Fastening means therefor
- E04F13/08—Coverings or linings, e.g. for walls or ceilings composed of covering or lining elements; Sub-structures therefor; Fastening means therefor composed of a plurality of similar covering or lining elements
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
- E04F2290/00—Specially adapted covering, lining or flooring elements not otherwise provided for
- E04F2290/04—Specially adapted covering, lining or flooring elements not otherwise provided for for insulation or surface protection, e.g. against noise, impact or fire
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
- Organic Chemistry (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Plant Pathology (AREA)
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Abstract
The invention provides a water-based epoxy primer for a heat-insulation decorative composite board, which consists of a component A and a component B, wherein the component A and the content thereof are as follows: 96.8-99.8% of waterborne epoxy resin, 0.1-2.4% of auxiliary agent and 0.1-0.8% of bactericide; the component B and the content thereof are as follows: 57.1 to 86.3 percent of curing agent, 13.3 to 38.1 percent of water and 0.4 to 4.8 percent of defoaming agent; when in use, the A, B components are mixed and stirred uniformly according to the ratio of 1: 1-3. The water-based epoxy primer for the heat-insulating decorative composite board is low in VOC content and more environment-friendly; the activation period is long, and the surface drying time is short; the freeze-thaw resistance is excellent; the adhesive force to the calcium silicate board and the middle coating is strong; and the production cost is lower. Overcomes the defects of long activation time, high cost, long drying time, poor freeze-thaw resistance and the like of the existing single-component primer and the existing water-based polyurethane paint.
Description
Technical Field
The invention relates to the field of coatings, and particularly relates to a water-based epoxy primer for a heat-insulating decorative composite board.
Background
the heat-insulating decorative composite board can achieve the same decorative effect as an aluminum plate and a stone material, has the characteristics of a curtain wall system and an outer heat-insulating system, is wide in application range, is simple and quick to construct due to the fact that a finished product (commonly called as a finished board) is produced in a factory, and has large market demand and market competitiveness. In the production process of the finished board, a layer of primer needs to be coated on the board of the panel in advance to ensure good adhesion of the middle coating or the finish to the panel and the board surface effect. Most of panel boards used by the existing heat-insulation decorative composite board are calcium silicate boards, and due to the porous structure and high water absorption rate, the board surface of the board cannot be directly coated with paint, so that the board needs to be subjected to sealing treatment by using primer.
However, the primers for finished panels place higher demands on their properties than conventional exterior wall primers. Although the prior art proposes that the traditional single-component water-based primer or water-based polyurethane with excellent performance is used as the primer, the water-based polyurethane paint has short activation period, high cost and long drying time (about 2 hours generally), the assembly line construction operation is difficult to realize, the hardness is high, the adhesion between the finish paint and the finish paint is poor, the finish paint can fall off in a large area after a freeze-thaw cycle, and the traditional single-component primer is more difficult to meet the requirement. The existing solutions mostly adopt oily UV penetrating primer, but the oily primer has a large amount of organic solvents, which causes high content of Volatile Organic Compounds (VOC), pollutes the environment, causes great damage to human health, does not meet the requirements of environmental protection and green, and has high cost, so that the primer for the composite board of the heat preservation device, which is more environment-friendly and has low cost, is urgently needed.
Therefore, through scientific research and continuous research, the applicant invents an environment-friendly water-based primer which has the performance equivalent to that of an oil-based primer, has a long activation period, good adhesion to calcium silicate boards and middle coats, excellent freeze-thaw resistance and short surface drying time, is particularly suitable for assembly line construction operation, and can solve the defects of the prior art.
Disclosure of Invention
In order to solve one of the problems or problems, the invention provides the water-based epoxy primer for the heat-insulating decorative composite board by selecting the water-based epoxy resin as a film-forming substance, adopting a two-component matching mode and selecting the contents of different components, and can overcome the defects of the existing single-component water-based primer and oil-based primer.
specifically, the invention provides a water-based epoxy primer for a heat-insulating decorative composite board, which consists of a component A and a component B, wherein the component A is a mixture of a water-based epoxy primer and a water-based epoxy primer
The component A comprises the following components in percentage by mass:
96.8 to 99.8 percent of waterborne epoxy resin
0.1 to 2.4 percent of auxiliary agent
0.1 to 0.8 percent of bactericide
The component B comprises the following components in percentage by weight:
57.1 to 86.3 percent of curing agent
13.3 to 38.1 percent of water
0.4 to 4.8 percent of defoaming agent
When in use, the A, B components are mixed and stirred uniformly according to the ratio of 1: 1-3.
The waterborne epoxy primer for the heat-insulating decorative composite board is low in VOC content and more environment-friendly; the activation period is long, and the surface drying time is short; the freeze-thaw resistance is excellent; the adhesive force to the calcium silicate board and the middle coating is strong; and the production cost is lower. And the A, B component is only used and uniformly mixed and stirred according to the proportion of 1:1-3, so that the storage and the transportation are convenient, the quality is not deteriorated, the incomplete reaction is caused by too little B component, the strength of a paint film is poor, the activation period is shortened by too much B component, and the cost is additionally increased. Therefore, the defects of long activation time, high cost, long drying time, poor freeze-thaw resistance and the like of the existing single-component primer and the existing water-based polyurethane paint are overcome, and the purpose of the invention is realized.
Specifically, the mechanism of the invention for solving the existing problems is as follows:
1. The water-based epoxy resin is selected as the water-based emulsion, so that the organic solvent content is higher, the environment is more protected, only water is needed to be used as the solvent in the using process, the raw material cost of an enterprise is reduced, and simultaneously, more VOC discharge cost is saved.
2. The activation period and the tack-free time of the different curing agents were significantly different when mixed with the emulsion. The selected curing agent is matched with the water-based emulsion used in the invention, so that the activation period is prolonged, and the surface drying of a paint film can be realized in a short time.
3. The waterborne epoxy primer has high adhesive force to various substances due to the existence of inherent polar hydroxyl and ether bonds in a cured epoxy resin molecular chain, so that excellent bonding strength to a base material and a middle coating is ensured, and a finished board has excellent freeze-thaw stability.
therefore, the water-based epoxy primer for the heat-insulating decorative composite board can solve the problems of long activation time, high cost, long drying time and poor freeze-thaw resistance of the single-component primer and the water-based polyurethane paint in the prior art.
According to one embodiment of the waterborne epoxy primer for thermal insulation decorative composite boards, preferably, the hydroxyethyl cellulose is: the water-based epoxy resin can be one of glycidyl ether epoxy resin, glycidyl ester epoxy resin, glycidyl amine epoxy resin, linear aliphatic epoxy resin and alicyclic epoxy resin. Can overcome the defects of oily film-forming substances and has low cost.
According to another embodiment of the water-based epoxy primer for thermal-insulation decorative composite boards, the auxiliary agent can be a leveling agent and can also be a substrate wetting agent. The leveling agent is one of organic silicon modified acrylate polymer, polysiloxane and fluorine-containing leveling agent, and the base material wetting agent is one of organic silicon surfactants. The adjuvant can help the film-forming material to form a film quickly.
According to still another embodiment of the water-based epoxy primer for thermal decorative composite panels according to the present invention, preferably, the bactericide may be one of 1, 2-benzisothiazolin-3-one, 5-chloro-2-methyl-4-isothiazolin-3-one, formaldehyde-releasing preservative, 1, 2-benzisothiazolin-3-one, and 2-methyl-isothiazolin-3-one. The bactericide can prevent the finished paint from deteriorating in the processes of storage and transportation.
According to another embodiment of the water-based epoxy primer for thermal insulation decorative composite boards, the curing agent may be one of an aliphatic amine curing agent, an aromatic amine curing agent, an alicyclic amine curing agent and an imide structure-containing curing agent. Can make the film forming matter quickly solidified and can raise the binding force of priming paint and plate material.
According to still another embodiment of the waterborne epoxy primer for thermal insulation decorative composite boards, preferably, the defoaming agent can be one of amides, metal soaps, silicones, mineral oils and hydrophobic silica. To eliminate bubbles generated during stirring and construction.
additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.
Detailed Description
In order that the above objects, features and advantages of the present invention may be more clearly understood, particular embodiments of the present invention will be described below. However, the embodiments and features of the embodiments of the present application may be combined with each other without conflict.
in the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described herein, and therefore the scope of the present invention is not limited by the specific embodiments disclosed below.
Example one
The embodiment of the water-based epoxy primer for the heat-insulating decorative composite board consists of a component A and a component B, wherein
The component A comprises the following components in percentage by mass:
98 percent of alicyclic epoxy resin
1.4 percent of organic silicon surfactant
0.6 percent of 1, 2-benzisothiazolin-3-one bactericide
The component B comprises the following components in percentage by mass:
68 percent of alicyclic amine curing agent
31.5 percent of water
Mineral oil antifoaming agent 0.5%
When in use, the A, B components are mixed and stirred uniformly according to the proportion of A: B to 1:1, and are directly rolled or brushed on a calcium silicate panel of the thermal insulation decorative composite board.
the test and detection of the heat-insulating decorative composite board treated by the water-based epoxy primer provided by the embodiment result in the following detection results:
After 5 times of freeze-thaw cycle (soaking in water at (23 +/-2) DEG C for 16 hours, then freezing at-25 ℃ for 8 hours, finally standing at normal temperature, entering the next cycle after the ice is dissolved), the floating coat has no bubbling and shedding, and the mixed primer still has no gelation phenomenon after standing for two days.
Example II
Another embodiment of the water-based epoxy primer for the heat-insulating decorative composite board consists of a component A and a component B, wherein
The component A comprises the following components in percentage by mass:
99 percent of alicyclic epoxy resin
0.6 percent of organic silicon surfactant
0.4 percent of 1, 2-benzisothiazolin-3-one bactericide
The component B comprises the following components in percentage by weight:
70 percent of alicyclic amine curing agent
29.5 Water
Mineral oil antifoaming agent 0.5%
When in use, the A, B components are mixed and stirred uniformly according to the proportion of A: B to 1:2, and are directly rolled or brushed on a calcium silicate panel of the thermal insulation decorative composite board.
The test and detection of the heat-insulating decorative composite board treated by the water-based epoxy primer provided by the embodiment result in the following detection results: the intermediate coating is carried out for 5 times of freeze-thaw cycles (soaking in water at the temperature of 23 +/-2 ℃ for 16 hours, then freezing at the temperature of-25 ℃ for 8 hours, finally standing at normal temperature, and entering the next cycle after ice is dissolved) according to the method in JG/T25, and the intermediate coating does not bubble or fall off. After being placed for two days, the mixed primer still has no gelation phenomenon.
Example three
another embodiment of the water-based epoxy primer for the heat-insulating decorative composite board consists of a component A and a component B, wherein
The component A comprises the following components in percentage by mass:
99 percent of alicyclic epoxy resin
0.6 percent of organic silicon surfactant
0.4 percent of 1, 2-benzisothiazolin-3-one bactericide
The component B comprises the following components in percentage by weight:
65 percent of alicyclic amine curing agent
34.5 percent of water
Mineral oil antifoaming agent 0.5%
When in use, the A, B components are mixed and stirred uniformly according to the proportion of A: B to 1:3, and are directly rolled or brushed on a calcium silicate panel of the thermal insulation decorative composite board.
The test and detection of the heat-insulating decorative composite board treated by the water-based epoxy primer provided by the embodiment result in the following detection results: the intermediate coating is carried out for 5 times of freeze-thaw cycles (soaking in water at the temperature of 23 +/-2 ℃ for 16 hours, then freezing at the temperature of-25 ℃ for 8 hours, finally standing at normal temperature, and entering the next cycle after ice is dissolved) according to the method in JG/T25, and the intermediate coating does not bubble or fall off. After being placed for two days, the mixed primer still has no gelation phenomenon.
The waterborne epoxy primer for the heat-insulation decorative composite board provided by the three embodiments of the application has lower VOC content and is more environment-friendly; the activation period is long, and the surface drying time is short; the freeze-thaw resistance is excellent; the adhesive force to the calcium silicate board and the middle coating is strong; and the production cost is lower. The invention can solve the problem of long activation time, high cost, long drying time and poor freeze-thaw resistance of the existing single-component primer and the existing water-based polyurethane paint.
In the description herein, the description of the terms "one embodiment," "some embodiments," "specific embodiments," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (5)
1. The water-based epoxy primer for the heat-insulating decorative composite board is characterized by consisting of a component A and a component B, wherein the component A is a water-based epoxy primer for the heat-insulating decorative composite board
The component A comprises the following components in percentage by mass:
96.8 to 99.8 percent of waterborne epoxy resin
0.1 to 2.4 percent of auxiliary agent
0.1 to 0.8 percent of bactericide
The component B comprises the following components in percentage by weight:
57.1 to 86.3 percent of curing agent
13.3 to 38.1 percent of water
0.4 to 4.8 percent of defoaming agent
When in use, the A, B components are mixed and stirred uniformly according to the ratio of 1:1-3, the waterborne epoxy resin is alicyclic epoxy resin, and the curing agent is alicyclic amine curing agent.
2. The waterborne epoxy primer for thermal insulation decorative composite board according to claim 1, wherein,
The auxiliary agent can be a leveling agent and also can be a substrate wetting agent.
3. The waterborne epoxy primer for thermal insulation decorative composite board according to claim 2,
The leveling agent is one of organic silicon modified acrylate polymer, polysiloxane and fluorine-containing leveling agent, and the base material wetting agent is one of organic silicon surfactants.
4. the waterborne epoxy primer for thermal insulation decorative composite board according to claim 1, wherein,
The bactericide may be one of 1, 2-benzisothiazolin-3-one, 5-chloro-2-methyl-4-isothiazolin-3-one, formaldehyde-releasing preservative, 1, 2-benzisothiazolin-3-one, and 2-methyl-isothiazolin-3-one.
5. The waterborne epoxy primer for thermal insulation decorative composite board according to claim 1, wherein,
The defoaming agent can be one of amides, metal soaps, organic silicon, mineral oil and hydrophobic silicon dioxide.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611040330.9A CN106854414B (en) | 2016-11-11 | 2016-11-11 | Water-based epoxy primer for heat-insulating decorative composite board |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611040330.9A CN106854414B (en) | 2016-11-11 | 2016-11-11 | Water-based epoxy primer for heat-insulating decorative composite board |
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| CN106854414A CN106854414A (en) | 2017-06-16 |
| CN106854414B true CN106854414B (en) | 2019-12-13 |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101392143A (en) * | 2008-10-28 | 2009-03-25 | 深圳市广田环保涂料有限公司 | Water epoxy seal coat and preparation method and use method thereof |
| CN104151990A (en) * | 2013-05-14 | 2014-11-19 | 天津可喜涂料有限公司 | Environmentally-friendly aqueous epoxy paint |
| CN105602402A (en) * | 2016-01-09 | 2016-05-25 | 安徽万诚达新型材料有限公司 | Waterborne epoxy sealing paint and preparation method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101035904B1 (en) * | 2009-10-12 | 2011-05-23 | 한토산업 (주) | Paint Composition Including Nano-Ceramic and Polymer Resin Against Neutralization and Salt Damage of Concrete and Method for Waterproof and Anticorrosion Using the Same |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101392143A (en) * | 2008-10-28 | 2009-03-25 | 深圳市广田环保涂料有限公司 | Water epoxy seal coat and preparation method and use method thereof |
| CN104151990A (en) * | 2013-05-14 | 2014-11-19 | 天津可喜涂料有限公司 | Environmentally-friendly aqueous epoxy paint |
| CN105602402A (en) * | 2016-01-09 | 2016-05-25 | 安徽万诚达新型材料有限公司 | Waterborne epoxy sealing paint and preparation method thereof |
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