CN216129526U - Mildew-proof coating - Google Patents
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- CN216129526U CN216129526U CN202120762620.4U CN202120762620U CN216129526U CN 216129526 U CN216129526 U CN 216129526U CN 202120762620 U CN202120762620 U CN 202120762620U CN 216129526 U CN216129526 U CN 216129526U
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Abstract
The present application provides a mold resistant coating comprising: the waterproof coating comprises a base coat, a waterproof impregnating curing agent layer coated on the surface of the base coat and a top coat coated on the surface of the waterproof impregnating curing agent layer; wherein, the whole or at least the part of the base coat contacting the water-resistant impregnating curing agent layer is a water-resistant impregnating curing agent wetting layer, and the water-resistant impregnating curing agent wetting layer comprises: the water-resistant impregnating curing agent at least partially infiltrates and permeates into the primer layer. According to the waterproof impregnating curing agent, the waterproof impregnating curing agent capable of reducing the water absorption rate is impregnated in the base coating, so that the water resistance of the base coating is improved, the water absorption rate is reduced, the possibility of long-term high humidity of a putty layer is eradicated, and the structural mildew-proof effect which is safe, non-toxic and mildew-proof is achieved. The mildew-proof coating prepared by the application has an obvious mildew-proof advantage, can achieve a mildew-proof effect without adding a bactericide in a top coating, and is durable in effect.
Description
Technical Field
The utility model relates to the technical field of mildew prevention, in particular to a mildew-proof coating.
Background
The decorative and protective coating structure of the surface (such as wall surface) of objects such as buildings and the like is mainly a putty layer-sealing bottom coating-surface coating (veneer coating/protective coating) structure, wherein the putty layer has higher water absorption, and even if the sealing bottom coating (including a penetration type and a film forming type) is applied, the putty structure layer after the integral sealing has the problems of lower bonding strength, uncontrollable water absorption and the like.
In rainy seasons (such as plum rainy season, summer rainy season and the like), the air humidity is high, and the phenomenon of surface moisture condensation caused by moisture condensation on the surface of a new decorative surface is easily generated on the surface of a top coat. Therefore, in the existing coating structure, the surface coating is generally made of emulsion paint with film-forming property, and when the new decorative surface is applied, the water absorption of the surface coating can be reduced due to the film-forming property of the surface coating, so that the problem that the coating is easy to damp is solved.
However, after the decorative surface is used for a long time, the water absorption rate of the surface coating is increased due to the pulverization of the surface coating, once the water absorption rate of the sealing base coat on the putty layer is higher, the water absorption rate of the composite coating structure of the putty layer/sealing base coat/surface coating is obviously increased, and the absorbed water can penetrate into the putty layer, so that the water in the composite coating is not easy to volatilize, the coating is in a humid environment for a long time, and when the coating is in high temperature, high humidity and the presence of mould for a long time, the mould penetrating into the putty layer can be generated, thereby not only affecting the decoration of the wall surface, but also harming the health of human bodies.
SUMMERY OF THE UTILITY MODEL
The object of the present invention is to provide a mould proof coating to solve the problems set forth in the above background.
In order to achieve the purpose, the utility model adopts the following technical scheme:
in a first aspect, the present application provides a mold resistant coating.
In a second aspect, the present application provides a mold resistant coating prepared from the mold resistant coating.
The application provides a mildew-resistant coating, which comprises: a water-resistant impregnating curing agent coated on the surface of the base coat and a top coat coated on the surface of the water-resistant impregnating curing agent; wherein the water-resistant impregnation curing agent at least partially infiltrates and permeates into the primer layer.
In a preferred embodiment, the mildew-proof coating can comprise a base coating, and the water-resistant impregnation curing agent is coated on the surface of the base coating and at least partially infiltrates and permeates into the base coating.
A mold resistant coating as described herein, comprising: the waterproof coating comprises a base coat, a waterproof impregnating curing agent layer coated on the surface of the base coat and a top coat coated on the surface of the waterproof impregnating curing agent layer; wherein, the whole or at least the part of the base coat contacting the water-resistant impregnating curing agent layer is a water-resistant impregnating curing agent wetting layer, and the water-resistant impregnating curing agent wetting layer comprises: the water-resistant impregnating curing agent at least partially infiltrates and permeates into the primer layer.
Preferably, the base coat can be various leveling and decorative putty layers, and can also be a powdered 'putty layer/closed base coat/top coat' composite coating.
Preferably, the primer layer does not contain a closed primer layer, or the mildew resistant coating and the mildew resistant coating do not contain a closed primer layer. But the application can also comprise a sealing bottom coating which is coated on the surface of the putty layer, and the water-resistant impregnation curing agent is coated on the surface of the sealing bottom coating and at least partially infiltrates and permeates into the sealing bottom coating.
Preferably, the water-resistant impregnation curing agent is a water-resistant, permeable curing agent.
Preferably, the water-resistant impregnation curing agent includes an organic curing agent, an inorganic curing agent, or an organic-inorganic composite curing agent.
Preferably, the water-resistant impregnation curing agent is a nano-sized curing agent or a nano/non-nano composite-sized curing agent.
More preferably, the water-resistant impregnation curing agent has an average particle diameter of 5 to 100nm, preferably 10 to 80nm, more preferably 15 to 50nm, and still more preferably 20 to 30 nm.
Preferably, the content of the cured product of the water-resistant impregnating curing agent is not less than 20%.
Preferably, the water-resistant impregnating curing agent easily penetrates into the undercoat layer, and a relatively thin water-resistant impregnating curing agent layer is formed on the surface of the undercoat layer, and the thickness of the water-resistant impregnating curing agent layer formed on the surface of the undercoat layer is preferably 100 μm or less, preferably 80 μm or less, preferably 50 μm or less, preferably 45 μm or less, preferably 40 μm or less, preferably 35 μm or less, preferably 30 μm or less, and preferably 20 μm or less.
Preferably, the viscosity of the water resistant infiltration curing agent is preferably <3000CPS, more preferably <1000CPS, more preferably <500 CPS.
Preferably, the water-resistant impregnation curing agent is selected from curing agents which have the functions of wetting, permeating, curing enhancement and water absorption reduction on base materials such as putty.
Preferably, the water-resistant impregnation curing agent may be a colored, transparent, or translucent curing agent, or the water-resistant impregnation curing agent may be colored, transparent, or translucent after curing.
The water-resistant impregnation curing agent may be colorless or colored when used and/or after curing, and the color may be a single color or a plurality of colors.
It should be understood that the single color may be white, or other color; the multiple colors may be a combination of colors (e.g., the colors exist independently of one another), or a mixture of colors (e.g., the colors are mixed into one or more colors)
Wherein the color of the water-resistant impregnation curing agent when used and/or after curing may be the same as or different from or partially the same as that of the primer layer.
Preferably, the water-resistant impregnation curing agent comprises a binder, a solvent or dispersion medium, and a pigment. More preferably, the water resistance impregnation curing agent may further include a functional additive.
Preferably, the water-resistant impregnation curing agent has an effect of reducing the water absorption rate of the undercoat layer.
More preferably, the binder of the water-resistant impregnation curing agent may be an organic binder, an inorganic binder, or a combination of an organic binder and an inorganic binder.
Wherein, the organic binder can be any one or more of acrylic emulsion, water-based epoxy resin, water-based polyurethane, solvent-free epoxy resin, solvent-free polyurethane, water-soluble resin, synthetic emulsion resin and redispersible latex powder.
Wherein, the inorganic binder can be any one or more of alkali metal silicate and silica sol.
More preferably, the solvent or dispersion medium of the water-resistant impregnation curing agent may be any one or more of water and an organic solvent.
Wherein, the organic solvent can be any one or more of alcohol, aldehyde, aromatic hydrocarbon, halogenated hydrocarbon, ether, ester, oxygen-containing heterocyclic compound and nitrogen-containing heterocyclic compound.
More preferably, the functional additive of the water-resistant impregnation curing agent can be any one or more of a defoaming agent, an antifreeze agent, a film forming aid, a sterilization and mildew inhibitor, a dispersing agent, a thickening agent, a water-retaining agent, a preservative, a wetting agent, a rheological agent, a phase-change energy storage additive, a heat preservation and insulation additive, a magnetic absorption additive and an electromagnetic shielding additive.
More preferably, the pigment of the water-resistant impregnation curing agent can be a decorative pigment for providing decorative colors, and can also be a decorative pigment for providing decorative effects, such as any one or more of titanium dioxide (white), inorganic mineral pigment and organic synthetic pigment.
In a preferred embodiment, the water-resistant infiltration curing agent comprises the following components in percentage by weight: 5-200 parts of a binder, 0-35 parts of a functional additive, 0-20 parts of a decorative pigment and a solvent or a dispersion medium; preferably, 20-150 parts by weight of a binder, 0-25 parts by weight of a functional additive, 0-20 parts by weight of a decorative pigment, and a solvent or a dispersion medium.
More preferably, the water-resistant impregnation curing agent comprises the following components in percentage by weight:
5-100 parts of organic binder, 0-100 parts of inorganic binder, 0-15 parts of antifreezing agent, 0-25 parts of film-forming additive, 0-5 parts of other functional additives and 0-20 parts of decorative pigment; preferably, 5-90 parts by weight of organic binder, 0-95 parts by weight of inorganic binder, 0-10 parts by weight of antifreeze, 2-20 parts by weight of film-forming additive, 0-5 parts by weight of other functional additives and 1-20 parts by weight of decorative pigment.
Preferably, the curing of the water resistance impregnation curing agent includes any one or more of light curing, reaction curing, dehydration curing, and heat curing.
Preferably, the water-resistant impregnation curing agent is cured (tack-free) preferably within 24 hours after painting, more preferably within 12 hours after painting, and still more preferably within 2 hours after painting.
Preferably, the coating amount of the water-resistant impregnating curing agent is preferably 0.05-0.5 kg/m2Preferably 0.1 to 0.35kg/m2Preferably 0.2 to 0.3kg/m2。
Preferably, the top coating is a decorative and functional coating layer, and can be emulsion paint, water-based epoxy resin, polyurethane, dry powder coating, low polymer water-based coating, high-filler non-compact coating and the like.
Preferably, the thickness of the top coating is preferably 30-300 μm, more preferably 60-200 μm, and more preferably 100-200 μm.
The object described herein is preferably a building or a part of a building (e.g., an interior wall, an exterior wall, a column, a roof, a floor), or a building finishing material such as a decorative panel, a tile, or the like, or a sculpture, a billboard, furniture, or the like, and more preferably a building wall.
The surface of the object described in the present application may be an exposed surface which is not coated with any coating layer, or may be a surface coated with various coating layers.
Infiltration, as used herein, refers to the adsorption and encapsulation of at least a portion of the surface of the constituent particles of the primer layer (e.g., putty) by the water-resistant infiltration curing agent. The term "penetration" as used herein means that the water-resistant impregnating curing agent enters into the space between the constituent particles of the primer layer (e.g., putty) or also enters into the interior of the constituent particles of the primer layer (e.g., putty) while adsorbing and wrapping at least part of the surface of the constituent particles of the primer layer (e.g., putty).
Compared with the prior art, the technical scheme of the utility model has the following beneficial effects:
1) the mildew-proof coating is environment-friendly, and all components of the mildew-proof coating are nontoxic and harmless to human bodies, so that the health of the human bodies can be guaranteed, and the life quality is improved.
2) Water resistance and low water absorption. Experimental results show that the average particle size of the water-resistant impregnating curing agent is less than or equal to 100nm, the measured reinforcement performance is greater than or equal to 0.7MPa, the water permeability is less than or equal to 0.2ml, and the water resistance is greater than or equal to 168h when the content of cured substances is greater than or equal to 20%, the measured reinforcement performance exceeds the indexes that the content of cured substances of a sealing primer in the JG/T210 plus-wall primer for buildings is less than or equal to 15%, the reinforcement performance is greater than or equal to 0.2MPa, the water resistance is greater than or equal to 96h, and the water permeability is less than or equal to 0.3ml in the standard, compared with the indexes of a film-forming product of a common sealing primer, the water-resistant impregnating curing agent has the characteristics of low water permeability, excellent water resistance and strong reinforcement performance. The mildew-proof coating has high water resistance and low water absorption. The top coating is thin and easy to dry, and in the inner coating, the drying of the inner coating is ensured under the action of the low-water-absorption water-resistant infiltration curing agent, so that a long-time humid environment cannot be formed in the coating, and a very firm, long-time damp-proof and mildew-proof coating veneer structure can be formed.
3) Construction convenience, the mould proof coating of this application simple structure, construction convenience, construction operation requires lowly, and is simple and convenient easy.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the application and, together with the description, serve to explain the application and are not intended to limit the application. In the drawings:
FIG. 1 is a schematic view of the construction of a wall surface coated with a mildew resistant coating according to the present application.
Illustration of the drawings:
1. a wall body; 2. a primer layer; 3. a water-resistant impregnation curing agent; 4. a top coat; 5. water-resistant impregnation the penetration edge of the curing agent.
Detailed Description
In order to make the objects, technical solutions and effects of the present invention clearer and clearer, the present invention is further described in detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are merely illustrative of the utility model and are not intended to limit the utility model.
The application provides a mould proof coating can be used to coat in the primary coat surface, the primary coat can be the putty layer of all kinds of leveling, decoration usefulness of coating at the wall, also can be the compound coating of "putty layer/closed primary coat/top-coat" that atomizes.
Referring to fig. 1, a schematic structural view of a wall surface coated with a mold proof coating includes a wall body 1, a primer layer 2 covering a surface of the wall body 1, a water-resistant impregnating curing agent 3 covering a surface of the primer layer 2 for reducing water absorption, and a top coating layer 4 covering a surface of the water-resistant impregnating curing agent 3, wherein the water-resistant impregnating curing agent 3 is partially impregnated into the primer layer 2 and penetrates into the bottom coating layer.
The manufacturing method of the mildew-proof coating comprises the following steps:
coating a water-resistant impregnating curing agent 3 with a reduced water absorption rate on the surface of the dried undercoat layer 2, and infiltrating at least part of the water-resistant impregnating curing agent 3 into the dried undercoat layer 2;
curing the water-resistant impregnation curing agent 3 to form an undercoat layer and a water-resistant impregnation curing agent composite;
and coating a top coating 4 on the surfaces of the primer layer and the water-resistant impregnating curing agent composite to form the composite mildew-proof coating.
The water-resistant impregnating curing agent 3 is a water-resistant and permeable curing agent, and may be an organic curing agent, an inorganic curing agent, or an organic-inorganic composite curing agent.
The top coating 4 is a decorative and functional coating layer, and can be emulsion paint, water-based epoxy resin, polyurethane, dry powder coating, low polymer water-based coating, high-filler non-compact coating and the like.
The mildew proof principle of the mildew proof coating is as follows:
1) the structure of low water absorption of the surface coating and high water absorption of the putty layer in the coating structure of the putty, the closed base coating and the surface coating in the original coating system is changed into the structure that the putty layer is enhanced by the water-resistant infiltration curing agent for reducing the water absorption through infiltration curing, and the water resistance is improved and the water absorption is reduced, so that the putty layer is always in a drier state;
2) even if the paint is used for a long time, the thin coating on the surface is easy to dry after the surface coating is pulverized, and the inner putty layer is dried and does not form high-humidity conditions for growth of mold.
The first embodiment is as follows:
coating 0.2kg/m of water-resistant impregnating curing agent on the wall surface coated with the dry putty layer2The average particle size of the water-resistant infiltration curing agent is 80nm, and at least part of the water-resistant infiltration curing agent is infiltrated and permeated into the dry putty layer; the water-resistant infiltration curing agent comprises the following components in parts by weight:
the water-resistant impregnating curing agent is roll-coated, preferably by a roll brush, and during the roll-coating process, the water-resistant impregnating curing agent infiltrates the surface of the putty and permeates into the space between the component particles in the putty layer and the interior of the particles capable of permeating, so that the water-resistant impregnating curing agent forms an impregnating curing agent layer on the surface of the putty, and at least part of the water-resistant impregnating curing agent infiltrates and permeates into the dried putty to reinforce the formation of the putty. According to the JG/T210 test method, the reinforcement (reinforcement) reaches 0.7MPa, the water permeability is 0.2ml, the water resistance reaches 300h without abnormality, and the indexes are far higher than the reinforcement of the sealing bottom coating by 0.2MPa, the water permeability is 0.3ml and the water resistance is 96 h.
The water-resistant impregnating curing agent is cured to form an undercoat layer and a water-resistant impregnating curing agent composite.
The water-resistant impregnation curing agent in this example was an aqueous acrylic emulsion.
Coating a surface coating on the surfaces of the primer layer and the water-resistant impregnating curing agent composite to form a composite mildew-proof coating; the surface coating is non-mildew latex paint.
Example two:
coating a water-resistant impregnating curing agent 0.25kg/m on the wall surface coated with the dry putty layer2The average particle size of the water-resistant infiltration curing agent particles is 20-80 nm, and at least part of the water-resistant infiltration curing agent particles are infiltrated and permeated into the dry putty layer; the water-resistant infiltration curing agent comprises the following components in parts by weight:
the water-resistant impregnating curing agent is roll-coated, preferably by a roll brush, and during the roll-coating process, the water-resistant impregnating curing agent infiltrates the surface of the putty and permeates into the space between the component particles in the putty layer and the interior of the particles capable of permeating, so that the water-resistant impregnating curing agent forms an impregnating curing agent layer on the surface of the putty, and at least part of the water-resistant impregnating curing agent infiltrates and permeates into the dried putty to reinforce the formation of the putty. According to the JG/T210 test method, the reinforcement (reinforcement) reaches 0.7MPa, the water permeability is 0.2ml, the water resistance reaches 300h without abnormality, and the indexes are far higher than the reinforcement of the sealing bottom coating by 0.2MPa, the water permeability is 0.3ml and the water resistance is 96 h.
The water-resistant impregnating curing agent is cured to form an undercoat layer and a water-resistant impregnating curing agent composite.
The water-resistant impregnation curing agent in this example is an organic-inorganic composite type of acrylic acid composite silica sol.
Coating a surface coating on the surfaces of the primer layer and the water-resistant impregnating curing agent composite to form a composite mildew-proof coating; the surface coating is dry powder coating without film formation, and has the characteristics of no surface condensation, easy drying and no mildew of internal putty layer after drying.
Example three:
coating 0.2kg/m of water-resistant infiltration curing agent on the surface of the powdered putty layer/closed base coat/top coat composite coating2The average particle size of the water-resistant impregnating curing agent is 5-80 nm, and at least part of the water-resistant impregnating curing agent is infiltrated and permeated into the dried composite coating; the water-resistant infiltration curing agent comprises the following components in parts by weight:
the water-resistant impregnating curing agent is roll-coated, preferably by a roll brush, and during the roll-coating process, the water-resistant impregnating curing agent infiltrates the surface of the composite coating layer and permeates into the component particles and the interior of the particles, so that the water-resistant impregnating curing agent forms an impregnating curing agent layer on the surface of the composite coating layer, and at least part of the water-resistant impregnating curing agent infiltrates and permeates into the dried composite coating layer to reinforce the composite coating layer. According to the JG/T210 test method, the reinforcement (reinforcement) reaches 0.7MPa, the water permeability is 0.2ml, the water resistance reaches 300h without abnormality, and the indexes are far higher than the reinforcement of the sealing bottom coating by 0.2MPa, the water permeability is 0.3ml and the water resistance is 96 h.
The water-resistant impregnating curing agent is cured to form an undercoat layer and a water-resistant impregnating curing agent composite.
The water-resistant impregnating curing agent in this example is an organic-inorganic composite type of acrylic acid and potassium silicate.
Coating a surface coating on the surfaces of the primer layer and the water-resistant impregnating curing agent composite to form a composite mildew-proof coating; the top coating is a latex paint without bactericide.
Example four:
coating 0.3kg/m of water-resistant impregnating curing agent on the surface of the powdered 'putty layer/closed base coat/top coat' composite coating2The average grain diameter of the water-resistant infiltration curing agent is 80nm, and at least part of the water-resistant infiltration curing agent infiltrates and permeates into the dried composite coating; the water-resistant infiltration curing agent comprises the following components in parts by weight:
the water-resistant impregnating curing agent is roll-coated, preferably by a roll brush, and during the roll-coating process, the water-resistant impregnating curing agent infiltrates the surface of the composite coating layer and permeates into the component particles and the interior of the particles, so that the water-resistant impregnating curing agent forms an impregnating curing agent layer on the surface of the composite coating layer, and at least part of the water-resistant impregnating curing agent infiltrates and permeates into the dried composite coating layer to reinforce the composite coating layer. According to the JG/T210 test method, the reinforcement (reinforcement) reaches 0.9MPa, the water permeability is 0.1ml, the water resistance reaches 400h without abnormality, and the indexes are far higher than the reinforcement of the sealing bottom coating by 0.2MPa, the water permeability is 0.3ml and the water resistance is 96 h.
The water-resistant impregnating curing agent is cured to form an undercoat layer and a water-resistant impregnating curing agent composite.
The water-resistant impregnation curing agent in this example was an aqueous acrylic latex.
Coating a surface coating on the surfaces of the primer layer and the water-resistant impregnating curing agent composite to form a composite mildew-proof coating; the top coating is a dry powder coating which does not form a film.
Example five:
coating 0.3kg/m of water-resistant impregnating curing agent on the surface of the powdered 'putty layer/closed base coat/top coat' composite coating2The average grain diameter of the water-resistant infiltration curing agent is 80nm, and at least part of the water-resistant infiltration curing agent infiltrates and permeates into the dried composite coating; the water-resistant infiltration curing agent comprises the following components in parts by weight:
the water-resistant impregnating curing agent is roll-coated, preferably by a roll brush, and during the roll-coating process, the water-resistant impregnating curing agent infiltrates the surface of the composite coating layer and permeates into the component particles and the interior of the particles, so that the water-resistant impregnating curing agent forms an impregnating curing agent layer on the surface of the composite coating layer, and at least part of the water-resistant impregnating curing agent infiltrates and permeates into the dried composite coating layer to reinforce the composite coating layer. According to the JG/T210 test method, the reinforcement (reinforcement) reaches 1.1MPa, the water permeability is 0.1ml, the water resistance reaches 500h without abnormality, and the indexes are far higher than the reinforcement of the sealing bottom coating by 0.2MPa, the water permeability is 0.3ml and the water resistance is 96 h.
The water-resistant impregnating curing agent is cured to form an undercoat layer and a water-resistant impregnating curing agent composite.
The water-resistant impregnating curing agent in this example was a water-based epoxy.
Coating a surface coating on the surfaces of the primer layer and the water-resistant impregnating curing agent composite to form a composite mildew-proof coating; the surface coating is bactericide-free waterborne polyurethane.
Comparative example 1:
the surface of the putty layer is coated with 0.2kg/m2And brushing the latex paint containing the bactericide twice.
Comparative example 2:
the surface of the putty layer is coated with 0.2kg/m2And brushing the silicone acrylic seal primer twice with emulsion paint without the bactericide.
And (3) testing the mildew resistance:
the mildew-proof performance test method adopts a field application test, namely, the tested mildew-proof coating is applied to an actual use environment, and the veneer condition is regularly observed. The application adopts three test actual environments of the residential shower area, basements in the south of the river, offices in the seaside high-humidity area and wall surfaces of the residential buildings. The results of the actual measurement of the mildew-proof performance are shown in Table 1.
TABLE 1 results of actual measurement of the mildew-proofing Properties
As can be seen from the above table, the average particle size of the water-resistant infiltration curing agent is less than or equal to 100nm, and when the content of the cured substance is greater than or equal to 20%, the measured reinforcement performance is greater than or equal to 0.7Mpa, the water permeability is less than or equal to 0.2ml, and the water resistance is greater than or equal to 168h, which exceeds the indexes that the content of the cured substance of the sealing primer is less than or equal to 15%, the reinforcement performance is greater than or equal to 0.2Mpa, the water resistance is greater than or equal to 96h, and the water permeability is less than or equal to 0.3ml in the JG/T210 and 2018 primer for internal and external walls of buildings. The water-resistant infiltration curing agent can be completely infiltrated and infiltrated into the primer layer; or partially impregnated and penetrated into the primer layer, and a film is formed on the surface of the primer layer. But compared with the film-forming product of the common seal primer, the water permeability and water resistance index are required to be controlled, and the permeable product is required to be controlled in reinforcement and water resistance index, the water-resistant infiltration curing agent has the functions of both the permeable product and the film-forming product, and has the characteristics of low water permeability, excellent water resistance and strong reinforcement performance. The mildew-proof coating prepared by the application has an obvious mildew-proof advantage, can achieve a mildew-proof effect without adding a bactericide in a top coating, and is durable in effect.
In conclusion, the water-resistant impregnating curing agent capable of reducing the water absorption rate is impregnated in the putty layer, so that the water resistance of the putty layer is improved, the water absorption rate is reduced, the putty layer is always in a dry state, the possibility of long-term high humidity of the putty layer is eliminated, the good mildew-proof effect can be kept even if a thin coating layer surface coating without a bactericide is adopted, and the structure mildew-proof effect which is safe, non-toxic (without the bactericide) and mildew-proof is achieved.
The embodiments of the present invention have been described in detail, but the embodiments are merely examples, and the present invention is not limited to the embodiments described above. Any equivalent modifications and substitutions to those skilled in the art are also within the scope of the present invention. Accordingly, equivalent changes and modifications made without departing from the spirit and scope of the present invention should be covered by the present invention.
Claims (24)
1. A mold resistant coating, comprising: the waterproof coating comprises a base coat, a waterproof impregnating curing agent layer coated on the surface of the base coat and a top coat coated on the surface of the waterproof impregnating curing agent layer; wherein, the whole or at least the part of the base coat contacting the water-resistant impregnating curing agent layer is a water-resistant impregnating curing agent wetting layer, and the water-resistant impregnating curing agent wetting layer comprises: the water-resistant impregnating curing agent at least partially infiltrates and permeates into the primer layer.
2. A mold resistant coating as defined in claim 1, wherein: the bottom coating is a putty layer for various leveling and decoration, or a powdered putty layer/closed bottom coating/top coating composite coating.
3. A mold resistant coating as defined in claim 1, wherein: the average particle size of the water-resistant infiltration curing agent is 5-100 nm.
4. A mold resistant coating as claimed in claim 3, wherein: the average particle size of the water-resistant infiltration curing agent is 10-80 nm.
5. A mould proof coating as claimed in claim 4, wherein: the average particle size of the water-resistant infiltration curing agent is 15-50 nm.
6. A mould proof coating as claimed in claim 5, wherein: the average particle size of the water-resistant infiltration curing agent is 20-30 nm.
7. A mold resistant coating as defined in claim 1, wherein: the water-resistant impregnating curing agent penetrates into the primer layer, a relatively thin water-resistant impregnating curing agent layer is formed on the surface of the primer layer, and the thickness of the water-resistant impregnating curing agent layer formed on the surface of the primer layer is less than or equal to 100 mu m.
8. A mould proof coating as claimed in claim 7, wherein: the thickness of the water-resistant infiltration curing agent layer formed on the surface of the base coat is less than or equal to 80 mu m.
9. A mold resistant coating as defined in claim 8, wherein: the thickness of the water-resistant infiltration curing agent layer formed on the surface of the base coat is less than or equal to 50 mu m.
10. A mold resistant coating as defined in claim 9, wherein: the thickness of the water-resistant infiltration curing agent layer formed on the surface of the base coat is less than or equal to 45 mu m.
11. A mold resistant coating as defined in claim 10, wherein: the thickness of the water-resistant infiltration curing agent layer formed on the surface of the base coat is less than or equal to 40 mu m.
12. A mold resistant coating as defined in claim 11, wherein: the thickness of the water-resistant infiltration curing agent layer formed on the surface of the base coat is less than or equal to 35 mu m.
13. A mold resistant coating as defined in claim 12, wherein: the thickness of the water-resistant infiltration curing agent layer formed on the surface of the base coat is less than or equal to 30 mu m.
14. A mildewproof coating according to claim 13, wherein: the thickness of the water-resistant infiltration curing agent layer formed on the surface of the base coat is less than or equal to 20 mu m.
15. A mold resistant coating as defined in claim 1, wherein: the viscosity of the water resistant infiltration curing agent is <3000 CPS.
16. A mold resistant coating as defined in claim 15, wherein: the viscosity of the water resistant infiltration curing agent is <1000 CPS.
17. A mold resistant coating as defined in claim 16, wherein: the viscosity of the water resistant infiltration curing agent is <500 CPS.
18. A mold resistant coating as defined in claim 1, wherein: the water-resistant infiltration curing agent layer is transparent or semitransparent.
19. A mold resistant coating as defined in claim 1, wherein: the water-resistant impregnating curing agentThe coating amount of (A) is 0.05 to 0.5kg/m2。
20. A mold resistant coating as defined in claim 19, wherein: the coating amount of the water-resistant infiltration curing agent is 0.1-0.35 kg/m2。
21. A mold resistant coating as defined in claim 20, wherein: the coating amount of the water-resistant infiltration curing agent is 0.2-0.3 kg/m2。
22. A mold resistant coating as defined in claim 1, wherein: the thickness of the surface coating is 30-300 mu m.
23. A mold resistant coating as defined in claim 22, wherein: the thickness of the surface coating is 60-200 mu m.
24. A mold resistant coating as defined in claim 23, wherein: the thickness of the surface coating is 100-200 mu m.
Priority Applications (1)
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