CN113881342A - Waterproof coating and preparation method and application thereof - Google Patents
Waterproof coating and preparation method and application thereof Download PDFInfo
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- CN113881342A CN113881342A CN202111344127.1A CN202111344127A CN113881342A CN 113881342 A CN113881342 A CN 113881342A CN 202111344127 A CN202111344127 A CN 202111344127A CN 113881342 A CN113881342 A CN 113881342A
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- waterproof coating
- emulsified asphalt
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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
- C09D195/00—Coating compositions based on bituminous materials, e.g. asphalt, tar, pitch
-
- 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
- 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
- C08K3/24—Acids; Salts thereof
- C08K3/26—Carbonates; Bicarbonates
- C08K2003/265—Calcium, strontium or barium carbonate
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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 a waterproof coating and a preparation method and application thereof, belonging to the technical field of materials; the waterproof coating provided by the invention comprises the following components in parts by weight: 25-35 parts of emulsified asphalt, 18-28 parts of acrylic emulsion, 15-30 parts of heavy calcium carbonate, 0.1-0.3 part of dispersant, 0.1-0.5 part of defoamer, 0.2-0.6 part of plasticizer, 0.2-0.6 part of thickener and 0.1-1 part of pH multifunctional assistant; the raw materials of the emulsified asphalt comprise polymer modified asphalt, an anionic emulsifier and water; according to the waterproof coating provided by the technical scheme of the invention, the specific emulsified asphalt is selected to be matched with the acrylic emulsion, the coarse whiting, the dispersing agent and other auxiliaries, so that the prepared waterproof coating has the characteristics of high tensile strength, good fluidity and strong bonding force.
Description
Technical Field
The invention belongs to the technical field of material synthesis, and particularly relates to a waterproof coating as well as a preparation method and application thereof.
Background
The self-adhesive polymer modified asphalt waterproof coiled material and the SBS modified asphalt waterproof coiled material are constructed by adopting a paving method, and the joint edges are lapped to form an integral waterproof layer; the hot melting method is that the bottom surface of the coiled material and the base layer are baked by a special hot melting machine or a blast lamp, when the bottom surface of the coiled material is baked and oiled to be glossy and blackened, the oiled coiled material is nearly melted, and the coiled material can be bonded with the base layer by rolling forwards; the cold bonding method is a construction method for bonding the coiled material by the adhesive; the method is mainly used for the lower layer of a single-layer waterproof structure and a laminated waterproof structure, and a point bonding method or a strip bonding method is adopted under the common condition; the method has the disadvantages of troublesome construction, strict environment requirement of outdoor construction, smooth paving of a base surface, tight and firm joint, and easy delamination in the later period to cause water leakage hidden trouble.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provide the waterproof coating with convenient construction and strong bonding force, and the preparation method and the application thereof.
In order to achieve the purpose, the invention adopts the technical scheme that: the waterproof coating comprises the following components in parts by weight: 25-35 parts of emulsified asphalt, 18-28 parts of acrylic emulsion, 15-30 parts of heavy calcium carbonate, 0.1-0.3 part of dispersant, 0.1-0.5 part of defoamer, 0.2-0.6 part of plasticizer, 0.2-0.6 part of thickener and 0.1-1 part of pH multifunctional assistant; the raw materials of the emulsified asphalt comprise polymer modified asphalt, an anionic emulsifier and water.
According to the waterproof coating provided by the technical scheme of the invention, the specific emulsified asphalt is selected to be matched with the acrylic emulsion, the coarse whiting, the dispersing agent and other auxiliaries, so that the prepared waterproof coating has the characteristics of high tensile strength, good fluidity and strong bonding force.
As a preferred embodiment of the waterproof coating material of the present invention, the waterproof coating material comprises the following components in parts by weight: 28-33 parts of emulsified asphalt, 22-26 parts of acrylic emulsion, 20-25 parts of heavy calcium carbonate, 0.1-0.3 part of dispersant, 0.1-0.5 part of defoamer, 0.2-0.6 part of plasticizer, 0.2-0.6 part of thickener and 0.1-1 part of pH multifunctional assistant.
As a preferred embodiment of the waterproof coating material of the present invention, the waterproof coating material comprises the following components in parts by weight: 33 parts of emulsified asphalt, 24 parts of acrylic emulsion, 22 parts of heavy calcium carbonate, 0.1-0.3 part of dispersant, 0.1-0.5 part of defoamer, 0.2-0.6 part of plasticizer, 0.2-0.6 part of thickener and 0.1-1 part of pH multifunctional assistant.
When the components of the waterproof coating provided by the invention are in the weight part range, the prepared waterproof coating has strong binding power and good fluidity.
As a preferred embodiment of the waterproof coating material of the present invention, the acrylic emulsion comprises a styrene-acrylic emulsion or a silicone-acrylic emulsion.
Preferably, the styrene-acrylic emulsion or the silicone-acrylic emulsion in the acrylic emulsion can ensure that the obtained product has excellent water resistance and weather resistance, the adhesion force of the styrene-acrylic emulsion or the silicone-acrylic emulsion is good, and the product has good adhesion force when used in combination with other additives.
As a preferred embodiment of the waterproof coating, the heavy calcium carbonate is powder with the particle size of 800-1000 meshes.
The heavy calcium carbonate can play a role of a filler in the formula, so that the dispersibility and the flowability among the components are improved in the preparation process; when the particle size of the heavy calcium is within the above range, the problem of dust caused by excessively small particle size and excessively high fluidity can be avoided, and the problem of reduced dispersibility caused by excessively large particle size can be avoided.
As a preferable embodiment of the waterproof coating material of the present invention, the dispersant includes carboxylate or sulfate.
The carboxylate and sulfate dispersants are anionic wetting dispersants, and when the dispersants are selected, the dispersants can be well matched with the heavy calcium carbonate for use, so that the viscosity can be further reduced, the fluidity can be improved on the basis of adding the heavy calcium carbonate, and flocculation is reduced.
As a preferred embodiment of the waterproof coating material of the present invention, the defoaming agent includes a silicone-based defoaming agent.
As a preferred embodiment of the waterproof coating material of the present invention, the plasticizer is dioctyl phthalate.
The dioctyl phthalate is selected as the plasticizer, so that the effect of the plasticizer can be exerted, namely, the penetrability and the adhesive force of the product are improved, and the dioctyl phthalate has good light resistance and heat resistance and can well stabilize the product.
As a preferred embodiment of the waterproof coating material of the present invention, the raw material of the emulsified asphalt comprises the following components in parts by weight, based on 100 parts by weight: 60-65 parts of polymer modified asphalt, 2-3 parts of anionic emulsifier and the balance of water.
As a preferred embodiment of the waterproof coating material of the present invention, the preparation method of the emulsified asphalt comprises the following steps: 60 parts of polymer modified asphalt, 3 parts of anionic emulsifier and the balance of water
As a preferred embodiment of the waterproof coating material of the present invention, the raw material of the emulsified asphalt comprises the following components in parts by weight, based on 100 parts by weight: and mixing and emulsifying 60 parts of polymer modified asphalt, 3 parts of anionic emulsifier and 37 parts of water to obtain emulsified asphalt.
As a preferable embodiment of the waterproof coating material of the present invention, the waterproof coating material further comprises 0.1 to 0.3 part of a bactericide.
In addition, the invention also provides a preparation method of the waterproof coating, which comprises the following steps:
(1) uniformly mixing a dispersing agent and coarse whiting, and then sequentially adding a defoaming agent, a plasticizer, a thickening agent and a pH multifunctional auxiliary agent to obtain a mixed system A;
(2) and adding the acrylic emulsion into the mixing system A, then adding the bactericide, uniformly mixing, adding the emulsified asphalt, and stirring to obtain the waterproof coating.
As a preferred embodiment of the preparation method of the invention, in the step (1), the manner of uniformly mixing is stirring, and the rotation speed of stirring is 600-800 r/min; the time interval between successive additions is 5-8 min.
As a preferred embodiment of the preparation method of the present invention, in the step (2), the manner of uniformly mixing is stirring, the rotation speed of stirring is 300-450r/min, and the stirring time is 5-10 min.
As a preferable embodiment of the preparation method of the present invention, in the step (2), the stirring time is 10 to 20 min.
In addition, the invention also provides application of the waterproof coating to waterproofing of a plane and a vertical face of a building.
Compared with the prior art, the invention has the beneficial effects that:
firstly, the method comprises the following steps: the waterproof coating provided by the technical scheme of the invention selects the specific emulsified asphalt to be matched with the acrylic emulsion, the coarse whiting, the dispersant and other additives, so that the prepared waterproof coating has the characteristics of high tensile strength, good fluidity and strong bonding force;
secondly, the method comprises the following steps: the preparation method of the waterproof coating provided by the technical scheme of the invention is simple, is convenient to operate and can be used for mass production.
Detailed Description
To better illustrate the objects, technical solutions and advantages of the present invention, the present invention will be further described with reference to specific embodiments; the total parts by weight of the components of the kexieling material in the following specific examples and comparative examples are 100 parts.
Example 1
The waterproof coating provided by the embodiment comprises the following components in parts by weight: 33 parts of emulsified asphalt, 24 parts of silicone-acrylic emulsion, 22 parts of heavy calcium, 0.2 part of sodium polycarboxylate, 0.2 part of organic silicon defoamer, 0.3 part of dioctyl phthalate, 0.4 part of thickener, 0.1 part of pH multifunctional assistant, 0.2 part of bactericide and the balance of water; wherein, the raw materials of the emulsified asphalt comprise 60 parts of polymer modified asphalt, 3 parts of anionic emulsifier and 37 parts of water;
the preparation method of the waterproof coating comprises the following steps: (1) mixing the sodium polycarboxylate and the coarse whiting, stirring for 5min at the rotating speed of 800r/min of 600-;
(2) and adding the silicone-acrylic emulsion into the mixing system A, uniformly stirring at the rotating speed of 300-450r/min, then adding the bactericide, stirring for 5min, adding the prepared emulsified asphalt, and stirring for 10min to obtain the waterproof coating.
Example 2
The waterproof coating provided by the embodiment comprises the following components in parts by weight: 28 parts of emulsified asphalt, 22 parts of styrene-acrylic emulsion, 20 parts of triple superphosphate, 0.2 part of sodium sulfate, 0.2 part of organic silicon defoamer, 0.3 part of dioctyl phthalate, 0.4 part of thickener, 0.1 part of pH multifunctional assistant, 0.2 part of bactericide and the balance of water; wherein, the raw materials of the emulsified asphalt comprise 60 parts of polymer modified asphalt, 3 parts of anionic emulsifier and 37 parts of water;
the preparation method of the waterproof coating comprises the following steps: (1) mixing sodium sulfate and coarse whiting, stirring for 5min at the rotating speed of 800r/min for 600 plus materials, then sequentially adding an organic silicon defoamer, dioctyl phthalate, a thickener and a pH multifunctional auxiliary agent every 5min, and keeping the rotating speed of the system at 800r/min for 600 plus materials in the adding process to obtain a mixed system A;
(2) and adding the styrene-acrylic emulsion into the mixed system A, uniformly stirring at the rotating speed of 300-450r/min, then adding the bactericide, stirring for 5min, adding the prepared emulsified asphalt, and stirring for 10min to obtain the waterproof coating.
Example 3
The only difference between the waterproof coating provided by the embodiment and the waterproof coating provided by the embodiment 1 is that the addition amount of the emulsified asphalt is 25 parts, the addition amount of the heavy calcium is 30 parts, and the addition amount of the acrylic emulsion is 28 parts.
Example 4
The only difference between the waterproof coating provided by the embodiment and the waterproof coating provided by the embodiment 1 is that the addition amount of the emulsified asphalt is 35 parts, the addition amount of the heavy calcium is 15 parts, and the addition amount of the acrylic emulsion is 18 parts.
Example 5
The only difference between the waterproof coating provided by the embodiment and the waterproof coating provided by the embodiment 1 is that the raw materials of the emulsified asphalt are 65 parts of polymer modified asphalt, 2 parts of anionic emulsifier and 33 parts of water.
Comparative example 1
The only difference between the waterproof coating provided by this comparative example and example 1 is that the amount of the emulsified asphalt added is 10 parts.
Comparative example 2
The only difference between the waterproof coating provided by this comparative example and example 1 is that the amount of the acrylic emulsion added is 10 parts.
Comparative example 3
The only difference between the waterproof coating provided by this comparative example and example 1 is that the amount of heavy calcium added is 8 parts.
Comparative example 4
The only difference between the waterproof coating provided by the comparative example and the waterproof coating provided by the example 1 is that the raw materials of the emulsified asphalt comprise 60 parts of polymer modified asphalt, 3 parts of nonionic emulsifier and 37 parts of water.
Comparative example 5
The only difference between the waterproof coating provided by this comparative example and example 1 is that no dispersant is added.
Comparative example 6
The only difference between the waterproof coating provided by the comparative example and the waterproof coating provided by the embodiment 1 is that in the preparation process, 33 parts of emulsified asphalt, 24 parts of acrylic emulsion, 22 parts of heavy calcium carbonate, 0.1-0.3 part of dispersant, 0.2 part of defoamer, 0.3 part of plasticizer, 0.4 part of thickener, 0.1 part of pH multifunctional assistant, 0.2 part of bactericide and the balance of water are weighed and stirred for 30min at the rotating speed of 300-350r/min to obtain the waterproof coating.
Examples of effects
The waterproof coatings prepared in examples 1-5 and comparative examples 1-6 were subjected to performance testing according to JC/T408-2005; the detection results are shown in table 1;
table 1: property characterization Table of waterproof coating materials prepared in examples 1 to 5 and comparative examples 1 to 6
As can be seen from the data in the table, when the technical scheme provided by the invention is adopted, the solid content of the prepared product is more than 60.0%, the actual drying time is 5h, the bonding strength is more than 1.3MPa, and the tensile strength is more than 2.46MPa, namely, the waterproof coating prepared by the invention has higher solid content, higher bonding strength and tensile strength, and also has excellent waterproof performance;
as can be seen from example 1 and comparative examples 1-2, when the amount of the emulsified asphalt or acrylic emulsion added is reduced, the solid content, the cohesive strength and the tensile strength of the prepared product are all reduced to some extent; as can be seen from example 1 and comparative example 3, when the addition amount of the heavy calcium carbonate is reduced, the tensile strength and the bonding strength of the heavy calcium carbonate are obviously reduced, and the addition of the heavy calcium carbonate can optimize the bonding performance and the toughness of the product; as can be seen from example 1 and comparative example 4, when the formulation of the emulsified asphalt is changed, the reduction range of the bonding strength and the tensile strength is obviously larger than that when the addition amount of the emulsified asphalt is reduced, which indicates that the kind of the emulsified asphalt has a larger influence on the performance of the product; as can be seen from example 1 and comparative example 5, when no dispersant is added, the bonding strength and tensile strength of the product are both reduced remarkably, which indicates that although the addition amount of the dispersant is small, the addition of a small amount of the dispersant can play a role in being matched with heavy calcium carbonate, emulsified asphalt and acrylic emulsion, so that the tensile property and bonding property of the product are improved; as can be seen from example 1 and comparative example 6, the product performance is reduced without the preparation method of the invention, because the addition sequence and time of the components can affect the mixing action among the components during the preparation process of the product, and further affect the product performance.
Finally, it should be noted that the above embodiments are intended to illustrate the technical solutions of the present invention and not to limit the scope of the present invention, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications and equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention.
Claims (10)
1. The waterproof coating is characterized by comprising the following components in parts by weight: 25-35 parts of emulsified asphalt, 18-28 parts of acrylic emulsion, 15-30 parts of heavy calcium carbonate, 0.1-0.3 part of dispersant, 0.1-0.5 part of defoamer, 0.2-0.6 part of plasticizer, 0.2-0.6 part of thickener and 0.1-1 part of pH multifunctional assistant;
the raw materials of the emulsified asphalt comprise polymer modified asphalt, an anionic emulsifier and water.
2. The waterproof coating material according to claim 1, wherein the waterproof coating material comprises the following components in parts by weight: 28-33 parts of emulsified asphalt, 22-26 parts of acrylic emulsion, 20-25 parts of heavy calcium carbonate, 0.1-0.3 part of dispersant, 0.1-0.5 part of defoamer, 0.2-0.6 part of plasticizer, 0.2-0.6 part of thickener and 0.1-1 part of pH multifunctional assistant.
3. The waterproof coating material according to claim 1, wherein the waterproof coating material comprises the following components in parts by weight: 33 parts of emulsified asphalt, 24 parts of acrylic emulsion, 22 parts of heavy calcium carbonate, 0.1-0.3 part of dispersant, 0.1-0.5 part of defoamer, 0.2-0.6 part of plasticizer, 0.2-0.6 part of thickener and 0.1-1 part of pH multifunctional assistant.
4. The waterproof coating material of claim 1, wherein the raw material of the emulsified asphalt comprises the following components in parts by weight, based on 100 parts by weight: 60-65 parts of polymer modified asphalt, 2-3 parts of anionic emulsifier and the balance of water.
5. The waterproof coating material of claim 1, wherein the raw material of the emulsified asphalt comprises the following components in parts by weight, based on 100 parts by weight: 60 parts of polymer modified asphalt, 3 parts of anionic emulsifier and the balance of water.
6. The waterproof paint according to claim 1, characterized in that the waterproof paint further comprises 0.1 to 0.3 parts of a bactericide.
7. The method for preparing the waterproof coating material according to claim 1, comprising the steps of:
(1) uniformly mixing a dispersing agent and coarse whiting, and then sequentially adding a defoaming agent, a plasticizer, a thickening agent and a pH multifunctional auxiliary agent to obtain a mixed system A;
(2) and adding the acrylic emulsion into the mixing system A, then adding the bactericide, uniformly mixing, adding the emulsified asphalt, and stirring to obtain the waterproof coating.
8. The preparation method as claimed in claim 7, wherein in the step (1), the mixing is performed by stirring at a rotation speed of 600-800 r/min; the time interval between successive additions is 5-8 min.
9. The method as claimed in claim 7, wherein in the step (2), the mixing is performed by stirring at a rotation speed of 300-450 r/min.
10. Use of a water-repellent coating according to any one of claims 1 to 6 for waterproofing a planar facade of a building.
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| CN202111344127.1A CN113881342A (en) | 2021-11-12 | 2021-11-12 | Waterproof coating and preparation method and application thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114591682A (en) * | 2022-01-14 | 2022-06-07 | 湖北碱克新材料有限公司 | Wear-resistant asphalt-based waterproof coating and preparation method thereof |
| CN114644865A (en) * | 2022-04-26 | 2022-06-21 | 河南蓝翎环科防水材料有限公司 | Anti-stripping flexible waterproof protective coating and preparation method thereof |
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| CN113004794A (en) * | 2021-03-08 | 2021-06-22 | 宏源防水科技集团有限公司 | High-performance modified asphalt waterproof coating and preparation method thereof |
| CN113429886A (en) * | 2021-06-22 | 2021-09-24 | 北京东方雨虹防水技术股份有限公司 | Polyurethane modified asphalt, waterborne polyurethane modified asphalt emulsion, waterborne polyurethane modified asphalt waterproof coating and preparation method thereof |
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2021
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| CN112646493A (en) * | 2020-12-21 | 2021-04-13 | 徐州卧牛山新型防水材料有限公司 | High-elasticity high-viscosity water-emulsion acrylic asphalt waterproof coating and preparation method thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114591682A (en) * | 2022-01-14 | 2022-06-07 | 湖北碱克新材料有限公司 | Wear-resistant asphalt-based waterproof coating and preparation method thereof |
| CN114644865A (en) * | 2022-04-26 | 2022-06-21 | 河南蓝翎环科防水材料有限公司 | Anti-stripping flexible waterproof protective coating and preparation method thereof |
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