CN110791109A - Emulsified asphalt, brushing type rubber asphalt waterproof coating and preparation method thereof - Google Patents
Emulsified asphalt, brushing type rubber asphalt waterproof coating and preparation method thereof Download PDFInfo
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- CN110791109A CN110791109A CN201911034967.0A CN201911034967A CN110791109A CN 110791109 A CN110791109 A CN 110791109A CN 201911034967 A CN201911034967 A CN 201911034967A CN 110791109 A CN110791109 A CN 110791109A
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J3/00—Processes of treating or compounding macromolecular substances
- C08J3/02—Making solutions, dispersions, lattices or gels by other methods than by solution, emulsion or suspension polymerisation techniques
- C08J3/03—Making solutions, dispersions, lattices or gels by other methods than by solution, emulsion or suspension polymerisation techniques in aqueous media
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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
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2395/00—Bituminous materials, e.g. asphalt, tar or pitch
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
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Abstract
The invention provides emulsified asphalt, a preparation method of the emulsified asphalt, a brushing type rubber asphalt waterproof coating and a preparation method of the brushing type rubber asphalt waterproof coating, wherein the emulsified asphalt comprises the following components in percentage by mass: 60-63% of petroleum asphalt; 0.3 to 2 percent of fatty alcohol polyoxyethylene ether sulfate emulsifier; 0.1 to 0.5 percent of pH value regulator; 0.1 to 0.5 percent of stabilizer; deionized water. According to the technical scheme, the emulsified asphalt with good stability is prepared, the emulsifier contains ethoxy groups and sulfonic groups, has anionic and nonionic characteristics, is not easy to coagulate when meeting cations, such as calcium ions and the like, and is compounded with the rubber latex with good stability, so that pimples are not easy to form when being coated, the waterproof construction quality is improved, the attractiveness is improved, and after a coating tool is used up, the emulsified asphalt can be directly cleaned by clean water, so that the emulsified asphalt can be recycled, resources are saved, and waste is reduced.
Description
Technical Field
The invention relates to the technical field of coatings, and particularly relates to emulsified asphalt, a preparation method of emulsified asphalt, a brushing type rubber asphalt waterproof coating and a preparation method of the brushing type rubber asphalt waterproof coating.
Background
In recent years, the spraying quick-setting rubber asphalt waterproof coating has the characteristics of quick construction, full adhesion, good waterproof effect and the like, is developed quickly, is convenient and quick when being used for large-area waterproof construction, but cannot be directly used for detail joint treatment and defect repair after waterproof construction, and must be matched with a brushing type rubber asphalt waterproof coating.
The formula of the conventional brushing type rubber asphalt waterproof paint is basically the same as that of the spraying quick-setting rubber asphalt waterproof paint, and the brushing type rubber asphalt waterproof paint consists of anionic emulsified asphalt, anionic latex, a filler, an auxiliary agent and the like, wherein the difference between the anionic emulsified asphalt and the anionic latex is that the brushing type rubber asphalt waterproof paint has higher system viscosity. The anionic emulsified asphalt and the anionic latex can be rapidly coagulated into a solid state under the action of a coagulant component, and the sprayed rapid-setting rubber asphalt waterproof coating is a rapid-setting film based on the principle, so that the material can be rapidly constructed without sagging, but the material has more problems when being used for brushing the rubber asphalt waterproof coating, and has the following technical defects:
(1) when detail nodes are treated, the positive charges on the surface of cement and the coagulant component on the surface of the rapid-setting waterproof membrane during defect repair after construction can cause the existing brushing type waterproof coating to be rapidly coagulated into lumps, and the lumps not only influence the appearance, but also are the weak points of water resistance.
(2) After the conventional brushing type rubber asphalt waterproof paint is brushed, a brushing tool cannot be cleaned by clear water, the clear water can destroy the balance of a system to cause the paint to be condensed, and the coagulated rubber asphalt component is stuck on the brushing tool and gets dirtier as the rubber asphalt component is washed, so that the brushing tool of the conventional brushing type waterproof paint is basically disposable and difficult to recycle.
Therefore, there is a need to develop a new brushing type rubber asphalt waterproof coating with good stability and uneasy to coagulate when meeting cations, which is used in combination with spraying of a quick-setting rubber asphalt waterproof coating to improve the waterproof construction quality.
Disclosure of Invention
The present invention is directed to solving at least one of the problems of the prior art or the related art.
Therefore, the invention aims to provide emulsified asphalt, a preparation method of the emulsified asphalt, a brushing type rubber asphalt waterproof coating and a preparation method of the brushing type rubber asphalt waterproof coating.
In order to achieve the above purpose, the technical solution of the first aspect of the present invention provides an emulsified asphalt, which comprises the following components by mass: 60-63% of petroleum asphalt; 0.3 to 2 percent of fatty alcohol polyoxyethylene ether sulfate emulsifier; 0.1 to 0.5 percent of pH value regulator; 0.1 to 0.5 percent of stabilizer; deionized water.
In the technical scheme, the emulsified asphalt prepared by the components has good stability, fatty alcohol-polyoxyethylene ether sulfate is used as an emulsifier, the fatty alcohol-polyoxyethylene ether sulfate contains ethoxy groups and sulfonic acid groups, and has the characteristics of anions and non-ions, when the emulsified asphalt meets the condition that cations are not easy to condense, the pimples on the wall after construction are reduced, the waterproof performance is improved, the emulsified asphalt has good storage stability, does not divide water or precipitate after 6 months of storage, and cannot be condensed when being mixed with a 10% calcium chloride solution.
The petroleum asphalt can be selected from one or two of 70# asphalt and 90# asphalt.
In the above technical scheme, preferably, the fatty alcohol-polyoxyethylene ether sulfate emulsifier includes any one or more of fatty alcohol-polyoxyethylene (2) sodium sulfate, fatty alcohol-polyoxyethylene (3) sodium sulfate, and fatty alcohol-polyoxyethylene ether ammonium sulfate.
In the technical scheme, any one or more of fatty alcohol-polyoxyethylene (2) sodium sulfate, fatty alcohol-polyoxyethylene (3) sodium sulfate and fatty alcohol-polyoxyethylene ether ammonium sulfate is/are used as an emulsifier for preparing the emulsified asphalt, and the emulsifier contains a certain ethoxy group and a certain sulfonic acid group, so that the prepared emulsified asphalt is not easy to coagulate when meeting cations, and the waterproof construction quality is improved.
In any of the above embodiments, preferably, the pH adjuster comprises sodium hydroxide and/or potassium hydroxide; the stabilizer comprises an organic stabilizer and an inorganic stabilizer, wherein the organic stabilizer is cellulose ether comprising hydroxymethyl cellulose ether and hydroxyethyl cellulose ether; the inorganic stabilizer comprises sodium bentonite, calcium bentonite and attapulgite.
More preferably, the stabilizer can be sodium bentonite, and can further improve the stability of the emulsified asphalt.
The technical scheme of the second aspect of the invention provides a preparation method of emulsified asphalt, which comprises the following steps: weighing petroleum asphalt according to the formula ratio, and heating to 130 ℃; weighing the fatty alcohol-polyoxyethylene ether sulfate emulsifier, the pH value regulator and the stabilizer in the formula ratio, adding the mixture into deionized water, uniformly stirring until the mixture is completely dissolved, and preheating to 65-70 ℃ to generate an emulsifier solution; and (3) adding the heated petroleum asphalt and the emulsifier solution into an emulsifying machine colloid mill simultaneously for emulsification, cooling to room temperature, and filtering to obtain emulsified asphalt.
In the technical scheme, the emulsified asphalt prepared by the step has good stability, fatty alcohol-polyoxyethylene ether sulfate is used as an emulsifier, the fatty alcohol-polyoxyethylene ether sulfate contains ethoxy groups and sulfonic acid groups, and has the characteristics of anions and non-ions, when the emulsified asphalt meets cations, the emulsified asphalt is not easy to condense, the pimples on the wall after construction are reduced, the waterproof performance is improved, the emulsified asphalt has good storage stability, is not subjected to water separation and precipitation after 6 months of storage, and cannot be condensed when being mixed with a 10% calcium ion solution.
The petroleum asphalt can be selected from one or two of 70# asphalt and 90# asphalt for use in a compounding manner, and the petroleum asphalt is emulsified by directly passing through an emulsifying machine colloid mill once, wherein the general emulsifying time is 5-90 s.
The technical scheme of the third aspect of the invention provides a brushing type rubber asphalt waterproof paint which comprises the following components in percentage by mass: 50% -90% of emulsified asphalt in the technical scheme; 10 to 50 percent of rubber latex with solid content of 50 to 65 percent; 5 to 30 percent of filler; 0.3 to 1.5 percent of other auxiliary agents; deionized water.
In the technical scheme, the emulsified asphalt in the technical scheme is used as a raw material for preparing the brushing type rubber asphalt waterproof coating, the stability to cations is good, the cations comprise sodium ions, potassium ions, calcium ions, magnesium ions and the like, the rubber latex is added, the stability of the rubber latex is good, the prepared brushing type rubber asphalt waterproof coating is not easy to coagulate after contacting with the cations on the cement base surface and the cations in the coagulant component, the problem of coating lumps is solved to a certain extent, the waterproof construction quality is improved, and the coating type rubber asphalt waterproof coating is attractive.
Moreover, the brushing type rubber asphalt waterproof paint has good stability, and can not be condensed by adding clear water, so that the brushing tool can be directly cleaned by the clear water after being used up, the brushing work can be repeatedly used, the resources are saved, and the waste is reduced.
In the above technical solution, preferably, the solid content of the emulsified asphalt is 60% to 63%.
In the technical scheme, the solid content of the emulsified asphalt is 60-63%, so that the stability of the prepared brushing type rubber asphalt waterproof coating is further improved.
In any of the above technical solutions, preferably, the rubber latex includes any one or more of natural latex, styrene-butadiene latex, neoprene latex, and acrylate latex; the pH value of the rubber latex is 6-8.
In the technical scheme, any one or more of natural latex, styrene-butadiene latex, neoprene latex and acrylate latex is/are used as rubber latex for preparing the brushing type rubber asphalt waterproof coating, and the pH value of the rubber latex is controlled to be 6-8, so that the stability of the brushing type rubber asphalt waterproof coating is further improved, and the phenomena of coagulation and pimple after the contact of the brushing type rubber asphalt waterproof coating with cations on a cement base surface and cations in a coagulant component are further reduced.
In any of the above embodiments, preferably, the rubber latex is a neutral carboxylic acid-modified neoprene latex.
In the technical scheme, neutral carboxylic acid modified neoprene latex is used as the rubber latex for preparing the brushing type rubber asphalt waterproof coating, so that the stability of a system is improved, the bonding performance of the coating is also improved, and the quality of the brushing type rubber asphalt waterproof coating is further improved.
In any of the above technical solutions, preferably, the filler includes any one or more of calcium carbonate, talc powder and wollastonite; the other auxiliary agents comprise a dispersing agent, a wetting agent, a defoaming agent, an antioxidant, a pH regulator and a thickening agent, wherein the dispersing agent is an ammonium salt dispersing agent, the defoaming agent is an organic silicon defoaming agent, and the thickening agent is a polyacrylate thickening agent.
In the technical scheme, the ammonium salt dispersing agent is selected, so that the water resistance of the system is improved, and the stability is improved while defoaming by selecting the organic silicon defoaming agent.
More specifically, the dispersant can be polyacrylic ammonium salt dispersant; the wetting agent can be alkyl polyoxyethylene ether; the defoaming agent can be polysiloxane defoaming agent; the antioxidant can be 2, 2' -methylene bis (4-methyl-6-tert-butylphenol); the pH regulator can be 2-amino-2-methyl-1-propanol; the thickening agent can be selected from polyacrylate saline alkali swelling thickening agent.
The technical scheme of the fourth aspect of the invention provides a preparation method of brushing type rubber asphalt waterproof paint, which comprises the following steps: weighing the filler and other additives according to the formula ratio, adding the filler and other additives into deionized water, and dispersing and grinding at a high speed of 1500-2500 r/min to obtain filler slurry; weighing the emulsified asphalt and the rubber latex with the formula ratio, and uniformly stirring at a low speed of 500 r/min-800 r/min; and in the stirring process of the emulsified asphalt and the rubber latex, slowly adding the filler slurry into a mixture formed by the emulsified asphalt and the rubber latex, adjusting the viscosity to 3000-7000 centipoise, and filtering to obtain the brushing type rubber asphalt waterproof coating.
In the technical scheme, the brushing type rubber asphalt waterproof coating prepared by the step has good stability to cations, wherein the cations comprise sodium ions, potassium ions, calcium ions, magnesium ions and the like, and the rubber latex is added, so that the rubber latex has good stability, and the prepared brushing type rubber asphalt waterproof coating is not easy to coagulate after contacting with the cations on the cement base surface and the cations in the coagulant component, thereby solving the problem of pimple after brushing to a certain extent, improving the waterproof construction quality and being beautiful.
Moreover, the brushing type rubber asphalt waterproof paint has good stability, and can not be condensed by adding clear water, so that the brushing tool can be directly cleaned by the clear water after being used up, the brushing work can be repeatedly used, the resources are saved, and the waste is reduced.
According to the technical scheme, fatty alcohol-polyoxyethylene ether sulfate is used as an emulsifier to prepare emulsified asphalt with good stability, the emulsifier contains ethoxy groups and sulfonic groups and has anionic and nonionic characteristics, when the emulsifier encounters cations, such as calcium ions and the like, the emulsifier is not easy to coagulate, the emulsified asphalt is compounded with rubber latex with good stability, and then filler and other auxiliaries are added to prepare the coating type rubber asphalt waterproof coating with good stability.
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
The invention discloses emulsified asphalt, a preparation method of emulsified asphalt, a brushing type rubber asphalt waterproof coating and a preparation method of a brushing type rubber asphalt waterproof coating, and the technical personnel in the field can realize the emulsified asphalt by properly improving process parameters by referring to the content. It is expressly intended that all such similar substitutes and modifications which would be obvious to one skilled in the art are deemed to be included in the invention. While the methods and applications of this invention have been described in terms of preferred embodiments, it will be apparent to those of ordinary skill in the art that variations and modifications in the methods and applications described herein, as well as other suitable variations and combinations, may be made to implement and use the techniques of this invention without departing from the spirit and scope of the invention.
The invention is further illustrated by the following examples:
example 1
The components of the emulsified asphalt: 62kg of No. 70 petroleum asphalt, 1.5kg of alkyl alcohol polyoxyethylene ammonium sulfate, 0.15kg of sodium hydroxide, 0.5kg of hydroxymethyl fiber and 35.85kg of deionized water.
The preparation process of the emulsified asphalt comprises the following steps: weighing petroleum asphalt according to the formula ratio, and heating to 130 ℃;
preparing an emulsifier solution, adding the ammonium alkyl alcohol polyoxyethylene (3) sulfate, sodium hydroxide and hydroxymethyl fibers into deionized water according to the formula amount, uniformly stirring until the ammonium alkyl alcohol polyoxyethylene (3) sulfate, the sodium hydroxide and the hydroxymethyl fibers are completely dissolved, and preheating to 65-70 ℃;
and adding the heated petroleum asphalt and the emulsifier solution into an emulsifying machine colloid mill simultaneously for emulsification, cooling to room temperature, and filtering to obtain the emulsified asphalt.
The brushing type rubber asphalt waterproof paint comprises the following components: 62kg of the emulsified asphalt, 28kg of neutral carboxylic acid modified neoprene latex, 6.5kg of filler and 0.5kg of other auxiliary agents; 3.15kg of deionized water.
Specifically, the other auxiliary agents comprise 0.1Kg of dispersing agent, 0.05Kg of wetting agent, 0.04Kg of antifoaming agent, 0.08Kg of antioxidant, 0.03Kg of pH regulator and 0.05Kg of thickening agent,
the preparation process of the brushing type rubber asphalt waterproof coating comprises the following steps:
weighing the filler and other additives according to the formula ratio, adding the filler and other additives into deionized water, and dispersing and grinding at a high speed of 1500-2500 r/min to obtain filler slurry;
weighing the emulsified asphalt and the rubber latex with the formula ratio, and uniformly stirring at a low speed of 500 r/min-800 r/min;
and in the stirring process of the emulsified asphalt and the rubber latex, slowly adding the filler slurry into a mixture formed by the emulsified asphalt and the rubber latex, adjusting the viscosity to 3000-7000 centipoise, and filtering to obtain the brushing type rubber asphalt waterproof coating.
Conventional anionic emulsified asphalt (a), conventional brushing type rubber asphalt waterproof paint (b), the emulsified asphalt (c) provided by the application and the brushing type rubber asphalt waterproof paint (d) provided by the application are respectively added into clear water, calcium chloride solutions with different contents, sodium chloride solutions, potassium chloride solutions and magnesium chloride solutions, and the test results shown in the following table 1 are obtained.
TABLE 1
The application process of the brushing type rubber asphalt waterproof coating comprises the following steps:
processing the detailed structure: the coating type rubber asphalt waterproof paint is directly coated on a detailed structure according to construction requirements, and the coating tool after coating is directly cleaned by clear water as emulsified asphalt and latex in the system are relatively stable and do not coagulate to generate lumps when encountering a positively charged cement base surface.
Repairing the defects after the large-surface construction of the sprayed quick-setting rubber asphalt waterproof coating: the defects are cleaned and leveled up, and then the defects are directly coated with the brushing type rubber asphalt waterproof coating with good stability, the coating is not coagulated by the coagulant on the surface of the quick-setting layer, the brushing surface is smooth and has no pimples, the waterproof construction quality is more ensured, and the brushing tool is repeatedly utilized after being cleaned by clear water.
Example 2
The components of the emulsified asphalt: 30kg of No. 70 petroleum asphalt, 30kg of No. 90 petroleum asphalt, 0.5kg of sodium alkyl alcohol polyoxyethylene (3) sulfate, 0.5kg of sodium alkyl alcohol polyoxyethylene (2) sulfate, 0.20kg of sodium hydroxide, 0.5kg of hydroxyethyl fiber and 38.3kg of deionized water.
The process for preparing emulsified asphalt is described in example 1 and will not be described in detail.
The brushing type rubber asphalt waterproof paint comprises the following components: 60kg of emulsified asphalt, 23kg of neutral carboxylic acid modified chloroprene latex, 7kg of styrene-butadiene latex, 6.5kg of filler, 0.5kg of other additives and 3.15kg of deionized water.
Specifically, the other auxiliary agents comprise 0.1Kg of dispersing agent, 0.05Kg of wetting agent, 0.04Kg of defoaming agent, 0.08Kg of antioxidant, 0.03Kg of pH regulator and 0.05Kg of thickening agent.
The preparation process of the brushing type rubber asphalt waterproof paint refers to example 1, and is not repeated herein.
Conventional anionic emulsified asphalt (a), conventional brushing type rubber asphalt waterproof paint (b), the emulsified asphalt (c) provided by the application, and the brushing type rubber asphalt waterproof paint (d) provided by the application are respectively added into clean water, calcium chloride solutions with different contents, sodium chloride solutions, potassium chloride solutions and magnesium chloride solutions, and the test results shown in the following table 2 are obtained.
TABLE 2
| (a) | (b) | (c) | (d) | |
| Clean water | With the generation of precipitate | With the generation of precipitate | No generation of precipitate | No generation of precipitate |
| Solution containing 10% calcium ion | With the generation of precipitate | With the generation of precipitate | No generation of precipitate | No generation of precipitate |
| Solution containing 15% calcium ion | With the generation of precipitate | With the generation of precipitate | No generation of precipitate | No generation of precipitate |
| Solution containing 20% calcium ion | With the generation of precipitate | With the generation of precipitate | With the generation of precipitate | With the generation of precipitate |
| Solution containing 25% of sodium ions | With the generation of precipitate | With the generation of precipitate | No generation of precipitate | No generation of precipitate |
| Solution containing 25% potassium ion | With the generation of precipitate | With the generation of precipitate | No generation of precipitate | No generation of precipitate |
| Solution containing 10% magnesium ion | With the generation of precipitate | With the generation of precipitate | No generation of precipitate | No generation of precipitate |
| Solution containing 20% magnesium ion | With the generation of precipitate | With the generation of precipitate | With the generation of precipitate | With the generation of precipitate |
Example 3
The components of the emulsified asphalt: 50kg of No. 70 petroleum asphalt, 13kg of No. 90 petroleum asphalt, 2.0kg of sodium alkyl alcohol polyoxyethylene (3) sulfate, 0.15kg of sodium hydroxide, 0.5kg of sodium bentonite and 36.35kg of deionized water.
The process for preparing emulsified asphalt is described in example 1 and will not be described in detail.
The brushing type rubber asphalt waterproof paint comprises the following components: 50kg of emulsified asphalt, 25kg of neutral carboxylic acid modified neoprene latex, 5kg of natural latex, 13kg of filler, 0.5kg of other additives and 6.3kg of deionized water.
Specifically, the other auxiliary agents comprise 0.2Kg of dispersing agent, 0.1Kg of wetting agent, 0.08Kg of defoaming agent, 0.16Kg of antioxidant, 0.06Kg of pH regulator and 0.1Kg of thickening agent.
The preparation process of the brushing type rubber asphalt waterproof paint refers to example 1, and is not repeated herein.
Conventional anionic emulsified asphalt (a), conventional brushing type rubber asphalt waterproof paint (b), the emulsified asphalt (c) provided by the application and the brushing type rubber asphalt waterproof paint (d) provided by the application are respectively added into clear water, calcium chloride solutions with different contents, sodium chloride solutions, potassium chloride solutions and magnesium chloride solutions, and the test results shown in the following table 3 are obtained.
TABLE 3
Example 4
The components of the emulsified asphalt: 45kg of No. 70 petroleum asphalt, 15kg of No. 90 petroleum asphalt, 1.5kg of sodium alkyl alcohol polyoxyethylene (2) sulfate, 0.20kg of sodium hydroxide, 0.5kg of hydroxyethyl fiber and 37.8kg of deionized water.
The process for preparing emulsified asphalt is described in example 1 and will not be described in detail.
The brushing type rubber asphalt waterproof paint comprises the following components: 80kg of emulsified asphalt, 7kg of neutral carboxylic acid modified chloroprene latex, 3kg of acrylate latex, 6.5kg of filler, 0.5kg of other additives and 3.15kg of deionized water.
Specifically, the other auxiliary agents comprise 0.1Kg of dispersing agent, 0.05Kg of wetting agent, 0.04Kg of defoaming agent, 0.08Kg of antioxidant, 0.03Kg of pH regulator and 0.05Kg of thickening agent.
The preparation process of the brushing type rubber asphalt waterproof paint refers to example 1, and is not repeated herein.
Conventional anionic emulsified asphalt (a), conventional brushing type rubber asphalt waterproof paint (b), the emulsified asphalt (c) provided by the application and the brushing type rubber asphalt waterproof paint (d) provided by the application are respectively added into clear water, calcium chloride solutions with different contents, sodium chloride solutions, potassium chloride solutions and magnesium chloride solutions, and the test results shown in the following table 4 are obtained.
TABLE 4
Example 5
The components of the emulsified asphalt: 60kg of No. 70 petroleum asphalt, 0.3kg of sodium alkylol polyoxyethylene (2) sulfate, 0.2kg of ammonium alkylol polyoxyethylene sulfate, 0.20kg of potassium hydroxide, 0.5kg of base bentonite and 37.8kg of deionized water.
The process for preparing emulsified asphalt is described in example 1 and will not be described in detail.
The brushing type rubber asphalt waterproof paint comprises the following components: 45kg of the emulsified asphalt, 45kg of neutral carboxylic acid modified neoprene latex, 6.5kg of filler, 0.5kg of other auxiliary agents and 3.15kg of deionized water.
Specifically, the other auxiliary agents comprise 0.1Kg of dispersing agent, 0.05Kg of wetting agent, 0.04Kg of defoaming agent, 0.08Kg of antioxidant, 0.03Kg of pH regulator and 0.05Kg of thickening agent.
The preparation process of the brushing type rubber asphalt waterproof paint refers to example 1, and is not repeated herein.
Conventional anionic emulsified asphalt (a), conventional brushing type rubber asphalt waterproof paint (b), the emulsified asphalt (c) provided by the application, and the brushing type rubber asphalt waterproof paint (d) provided by the application are respectively added into clean water, calcium chloride solutions with different contents, sodium chloride solutions, potassium chloride solutions and magnesium chloride solutions, and the test results shown in the following table 5 are obtained.
TABLE 5
| (a) | (b) | (c) | (d) | |
| Clean water | With the generation of precipitate | With the generation of precipitate | No generation of precipitate | No generation of precipitate |
| Solution containing 10% calcium ion | With the generation of precipitate | With the generation of precipitate | No generation of precipitate | No generation of precipitate |
| Solution containing 15% calcium ion | With the generation of precipitate | With the generation of precipitate | No generation of precipitate | No generation of precipitate |
| Solution containing 20% calcium ion | With the generation of precipitate | With the generation of precipitate | With the generation of precipitate | With the generation of precipitate |
| Solution containing 25% of sodium ions | With the generation of precipitate | With the generation of precipitate | No generation of precipitate | No generation of precipitate |
| Solution containing 25% potassium ion | With the generation of precipitate | With the generation of precipitate | No generation of precipitate | No generation of precipitate |
| Solution containing 10% magnesium ion | With the generation of precipitate | With the generation of precipitate | No generation of precipitate | No generation of precipitate |
| Solution containing 20% magnesium ion | With the generation of precipitate | With the generation of precipitate | With the generation of precipitate | With the generation of precipitate |
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (10)
1. The emulsified asphalt is characterized by comprising the following components in percentage by mass:
60-63% of petroleum asphalt; 0.3 to 2 percent of fatty alcohol polyoxyethylene ether sulfate emulsifier; 0.1 to 0.5 percent of pH value regulator; 0.1 to 0.5 percent of stabilizer; deionized water.
2. The emulsified asphalt as set forth in claim 1,
the fatty alcohol polyoxyethylene ether sulfate emulsifier comprises one or more of fatty alcohol polyoxyethylene (2) sodium sulfate, fatty alcohol polyoxyethylene (3) sodium sulfate and fatty alcohol polyoxyethylene ether ammonium sulfate.
3. The emulsified asphalt as set forth in claim 2,
the pH value regulator comprises sodium hydroxide and/or potassium hydroxide;
the stabilizer comprises an organic stabilizer and an inorganic stabilizer,
the organic stabilizer is cellulose ether, including hydroxymethyl cellulose ether and hydroxyethyl cellulose ether;
the inorganic stabilizer comprises sodium bentonite, calcium bentonite and attapulgite.
4. A method for preparing the emulsified asphalt as defined in any one of claims 1 to 3, comprising the steps of:
weighing petroleum asphalt according to the formula ratio, and heating to 130 ℃;
weighing the fatty alcohol-polyoxyethylene ether sulfate emulsifier, the pH value regulator and the stabilizer in the formula ratio, adding the mixture into deionized water, uniformly stirring until the mixture is completely dissolved, and preheating to 65-70 ℃ to generate an emulsifier solution;
and simultaneously adding the heated petroleum asphalt and the emulsifier solution into an emulsifying machine colloid mill for emulsification, cooling to room temperature, and filtering to obtain the emulsified asphalt.
5. The brushing type rubber asphalt waterproof paint is characterized by comprising the following components in percentage by mass:
50% -90% of the emulsified asphalt of any one of claims 1-3; 10 to 50 percent of rubber latex with solid content of 50 to 65 percent; 5 to 30 percent of filler; 0.3 to 1.5 percent of other auxiliary agents; deionized water.
6. The painting-type rubber asphalt waterproof paint according to claim 5,
the solid content of the emulsified asphalt is 60-63%.
7. The painting-type rubber asphalt waterproof paint according to claim 6, characterized in that,
the rubber latex comprises any one or more of natural latex, styrene-butadiene latex, neoprene latex and acrylate latex;
the pH value of the rubber latex is 6-8.
8. The painting-type rubber asphalt waterproof paint according to claim 7,
the rubber latex is neutral carboxylic acid modified neoprene latex.
9. The painting-type rubber asphalt waterproof paint according to claim 8,
the filler comprises one or more of calcium carbonate, talcum powder and wollastonite;
the other auxiliary agents comprise a dispersing agent, a wetting agent, a defoaming agent, an antioxidant, a pH regulator and a thickening agent, wherein the dispersing agent is an ammonium salt dispersing agent, the defoaming agent is an organic silicon defoaming agent, and the thickening agent is an acrylic acid thickening agent.
10. A method for preparing the brushing type rubber asphalt waterproof paint according to any one of claims 5 to 9, which is characterized by comprising the following steps:
weighing the filler and other additives according to the formula ratio, adding the filler and other additives into deionized water, and dispersing and grinding at a high speed of 1500-2500 r/min to obtain filler slurry;
weighing the emulsified asphalt and the rubber latex with the formula ratio, and uniformly stirring at a low speed of 500 r/min-800 r/min;
and in the stirring process of the emulsified asphalt and the rubber latex, slowly adding the filler slurry into a mixture formed by the emulsified asphalt and the rubber latex, adjusting the viscosity to 3000-7000 centipoise, and filtering to obtain the brushing type rubber asphalt waterproof coating.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
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| CN201911034967.0A CN110791109A (en) | 2019-10-29 | 2019-10-29 | Emulsified asphalt, brushing type rubber asphalt waterproof coating and preparation method thereof |
| PCT/CN2020/108868 WO2021082630A1 (en) | 2019-10-29 | 2020-08-13 | Emulsified asphalt, brush-application-type rubber asphalt waterproof paint, and preparation method therefor |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911034967.0A CN110791109A (en) | 2019-10-29 | 2019-10-29 | Emulsified asphalt, brushing type rubber asphalt waterproof coating and preparation method thereof |
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| CN110791109A true CN110791109A (en) | 2020-02-14 |
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| WO (1) | WO2021082630A1 (en) |
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Address after: 251900 four road, Xicheng Industrial Park, Wudi County, Binzhou, Shandong Applicant after: Shandong North Chuangxin Waterproof Technology Group Co.,Ltd. Address before: 251900 four road, Xicheng Industrial Park, Wudi County, Binzhou, Shandong Applicant before: Shandong North Chuangxin waterproofing Polytron Technologies Inc. |
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Application publication date: 20200214 |