CN111171610A - Modified waterproof coating for roads and bridges and preparation method thereof - Google Patents
Modified waterproof coating for roads and bridges and preparation method thereof Download PDFInfo
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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
- C09D1/00—Coating compositions, e.g. paints, varnishes or lacquers, based on inorganic substances
- C09D1/06—Coating compositions, e.g. paints, varnishes or lacquers, based on inorganic substances cement
- C09D1/08—Coating compositions, e.g. paints, varnishes or lacquers, based on inorganic substances cement with organic additives
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- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
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- C09D133/00—Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Coating compositions based on derivatives of such polymers
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- C09D175/00—Coating compositions based on polyureas or polyurethanes; Coating compositions based on derivatives of such polymers
- C09D175/04—Polyurethanes
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- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
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- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
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- C09D7/60—Additives non-macromolecular
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- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/65—Additives macromolecular
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- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
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- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
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- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
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- 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
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
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- C—CHEMISTRY; METALLURGY
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- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/14—Polymer mixtures characterised by other features containing polymeric additives characterised by shape
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Abstract
The invention discloses a modified waterproof coating for roads and bridges, which is prepared from the following raw materials in parts by weight: 30-40 parts of cement, 10-15 parts of wear-resistant waterproof auxiliary agent, 10-12 parts of polyurethane, 1-2 parts of thickening agent, 10-15 parts of inorganic filler, 8-10 parts of acrylic emulsion, 6-8 parts of epoxy resin, 1-2 parts of flatting agent, 4-6 parts of emulsifier, 3-5 parts of N-methyl-3-aminopropyltrimethoxysilane, 2-4 parts of polyoxyethylene polyoxypropylene amine ether, 3-5 parts of tackifier, 2-4 parts of dibutyltin dilaurate, 1-2 parts of defoaming agent, 1-2 parts of dispersing agent, 2-4 parts of stabilizer, 2-4 parts of water reducing agent, 6-8 parts of sodium silicate and 20-30 parts of water. Compared with the prior art, the wear-resistant waterproof auxiliary agent and the inorganic filler are added into the waterproof coating, so that the wear resistance of the coating is improved, the waterproof performance of the coating is enhanced by the matching use of the stabilizer and the water reducing agent, and the coating prepared by the invention has good water seepage resistance and good wear resistance, ensures the connection firmness of roads and is not easy to damage.
Description
Technical Field
The invention relates to the technical field of roads and bridges, in particular to a modified waterproof coating for roads and bridges and a preparation method thereof.
Background
Along with the continuous acceleration of the urbanization process in China, the scale of each city is rapidly enlarged, and corresponding road and bridge engineering projects are on the horse at a glance. In the process of road and bridge engineering construction, the engineering waterproof problem is not paid enough attention and attention, so that a lot of road and bridge engineering have the problem of poor waterproof capability. The urban road and bridge engineering is not well waterproof, and the road and bridge structure can be seriously influenced, so that safety threats are formed to passing vehicles and people, the service life of the urban road and bridge engineering can be greatly reduced, and urban waterlogging can be caused in serious conditions, so that traffic paralysis is caused.
At present, the road and bridge materials mainly adopt composite materials taking cement as a main body, the specific composite materials form a framework of civil engineering and architectural engineering, the framework is used for bearing various loads, playing the functions of seepage prevention, heat insulation and the like and resisting the erosion of the weather environment, but under the wet condition for a long time, particularly under the alternate circulation of dry and wet, and bearing for a long time, most of the road and bridge materials are corroded or worn to an extent, and the conventional road and bridge materials in the prior art can not meet the market demand. How to prepare the wear-resistant waterproof modified road and bridge material and simultaneously reduce the preparation cost of the material is always a technical problem of popularization and application of the wear-resistant waterproof modified road and bridge material.
Disclosure of Invention
The invention aims to overcome the defects in the prior art and provides a modified waterproof coating for roads and bridges and a preparation method thereof to solve the problems.
In order to achieve the purpose, the technical scheme of the invention is as follows:
the modified waterproof coating for the road and the bridge is characterized by comprising the following components in parts by weight: the composite material is prepared from the following raw materials in parts by weight: 30-40 parts of cement, 10-15 parts of wear-resistant waterproof auxiliary agent, 10-12 parts of polyurethane, 1-2 parts of thickening agent, 10-15 parts of inorganic filler, 8-10 parts of acrylic emulsion, 6-8 parts of epoxy resin, 1-2 parts of flatting agent, 4-6 parts of emulsifier, 3-5 parts of N-methyl-3-aminopropyltrimethoxysilane, 2-4 parts of polyoxyethylene polyoxypropylene amine ether, 3-5 parts of tackifier, 2-4 parts of dibutyltin dilaurate, 1-2 parts of defoaming agent, 1-2 parts of dispersing agent, 2-4 parts of stabilizer, 2-4 parts of water reducing agent, 6-8 parts of sodium silicate and 20-30 parts of water.
Preferably, the wear-resistant waterproof auxiliary comprises the following main raw materials in parts by weight: 20-25 parts of vulcanized rubber particles, 8-12 parts of straw fibers, 6-8 parts of polyethylene wax, 8-10 parts of black silicon carbide and 4-6 parts of sodium metasilicate.
Preferably, the inorganic filler is one or more of talcum powder, silica powder and bentonite.
Preferably, the leveling agent is one or a mixture of organosilicon leveling agent and polyacrylate leveling agent.
Preferably, the thickener is prepared by the following method: adding 0.5g of saponin into 100g of deionized water, stirring uniformly, adding 1g of sorbitan fatty acid ester and 0.2 g of lauryl phenylacetate, and grinding.
Preferably, the emulsifier is obtained by mixing N-alkyl trimethyl ammonium chloride and polyoxyethylene sorbitol monolaurate according to the weight ratio of 6: 2.
Preferably, the tackifier is one or more of hydrogenated rosin glycerin ester, hydrogenated rosin pentaerythritol ester and rosin glycerin ester.
Preferably, the defoaming agent is one or a combination of more of polyether modified organosilicon, polysiloxane or phenethyl alcohol oleate; the dispersant is sodium hexametaphosphate.
Preferably, the stabilizer is polyvinyl alcohol or sodium carboxymethyl cellulose; the water reducing agent is a polycarboxylic acid water reducing agent.
A preparation method of a modified waterproof coating for roads and bridges is characterized by comprising the following steps: the method comprises the following specific steps:
step S1: weighing the raw materials according to the weight part ratio for later use;
step S2: uniformly mixing a wear-resistant waterproof auxiliary agent, an inorganic filler, a tackifier, dibutyltin dilaurate, a defoaming agent, a dispersing agent, a stabilizer, a water reducing agent and sodium silicate, adding the leveling agent, grinding and dispersing, and sieving by a 10-mesh sieve to obtain mixture powder A for later use;
step S3: adding the polyurethane, the acrylic emulsion, the N-methyl-3-aminopropyltrimethoxysilane, the polyoxyethylene polyoxypropylene amine ether and the thickening agent into a water bath, synchronously adding deionized water, heating to 100-180 ℃, preserving heat, synchronously carrying out ultrasonic stirring for 3-4h, then carrying out vacuum drying to obtain a blocky mixture B, and finally grinding the blocky mixture B to obtain mixture B powder for later use;
step S4: and adding epoxy resin into a reaction kettle, synchronously adding the mixture powder A, the mixture powder B and an emulsifier, stirring, heating and reacting for 60-90min, then adding deionized water, keeping the temperature at 70-80 ℃, and emulsifying for 90-120min to obtain the modified waterproof coating.
Compared with the prior art, the wear-resistant waterproof modified road and bridge material prepared by the invention has good water seepage resistance and good wear resistance, ensures the connection firmness of roads, is not easy to damage, prolongs the service life, and is safer and more reliable.
Detailed Description
In order to provide a further understanding and appreciation for the structural features and advantages achieved by the present invention, the following detailed description of the preferred embodiments is provided:
example 1
A modified waterproof coating for roads and bridges is composed of the following raw materials in parts by weight: 30 parts of cement, 10 parts of wear-resistant waterproof auxiliary agent, 10 parts of polyurethane, 1 part of thickening agent, 10 parts of inorganic filler, 8 parts of acrylic emulsion, 6 parts of epoxy resin, 1 part of flatting agent, 4 parts of emulsifier, 3 parts of N-methyl-3-aminopropyltrimethoxysilane, 2 parts of polyoxyethylene polyoxypropylene amine ether, 3 parts of tackifier, 2 parts of dibutyltin dilaurate, 1 part of defoaming agent, 1 part of dispersing agent, 2 parts of stabilizing agent, 2 parts of water reducing agent, 6 parts of sodium silicate and 20 parts of water.
The wear-resistant waterproof auxiliary agent comprises the following main raw materials in parts by weight: 20 parts of vulcanized rubber particles, 8 parts of straw fibers, 6 parts of polyethylene wax, 8 parts of black silicon carbide and 4 parts of sodium metasilicate;
wherein the inorganic filler is talcum powder; the leveling agent is an organic silicon leveling agent;
the thickening agent is prepared by the following method: adding 0.5g of saponin into 100g of deionized water, stirring uniformly, adding 1g of sorbitan fatty acid ester and 0.2 g of lauryl phenylacetate, and grinding;
wherein the emulsifier is obtained by mixing N-alkyl trimethyl ammonium chloride and polyoxyethylene sorbitol monolaurate according to the weight ratio of 6: 2;
wherein the tackifier is hydrogenated rosin glyceride; the defoaming agent is polyether modified organic silicon; the dispersant is sodium hexametaphosphate; the stabilizer is polyvinyl alcohol; the water reducing agent is a polycarboxylic acid water reducing agent.
The preparation method of the modified waterproof coating for the road and the bridge comprises the following specific steps:
step S1: weighing the raw materials according to the weight part ratio for later use;
step S2: uniformly mixing a wear-resistant waterproof auxiliary agent, an inorganic filler, a tackifier, dibutyltin dilaurate, a defoaming agent, a dispersing agent, a stabilizer, a water reducing agent and sodium silicate, adding the leveling agent, grinding and dispersing, and sieving by a 10-mesh sieve to obtain mixture powder A for later use;
step S3: adding the polyurethane, the acrylic emulsion, the N-methyl-3-aminopropyltrimethoxysilane, the polyoxyethylene polyoxypropylene amine ether and the thickening agent into a water bath, synchronously adding deionized water, heating to 100-180 ℃, preserving heat, synchronously carrying out ultrasonic stirring for 3-4h, then carrying out vacuum drying to obtain a blocky mixture B, and finally grinding the blocky mixture B to obtain mixture B powder for later use;
step S4: and adding epoxy resin into a reaction kettle, synchronously adding the mixture powder A, the mixture powder B and an emulsifier, stirring, heating and reacting for 60-90min, then adding deionized water, keeping the temperature at 70-80 ℃, and emulsifying for 90-120min to obtain the modified waterproof coating.
Example 2
A modified waterproof coating for roads and bridges is composed of the following raw materials in parts by weight: 32 parts of cement, 12 parts of wear-resistant waterproof auxiliary agent, 11 parts of polyurethane, 1 part of thickening agent, 11 parts of inorganic filler, 8 parts of acrylic emulsion, 7 parts of epoxy resin, 1.5 parts of flatting agent, 4 parts of emulsifier, 5 parts of N-methyl-3-aminopropyltrimethoxysilane, 3 parts of polyoxyethylene polyoxypropylene amine ether, 4 parts of tackifier, 4 parts of dibutyltin dilaurate, 1 part of defoaming agent, 1.5 parts of dispersing agent, 3 parts of stabilizer, 4 parts of water reducing agent, 7 parts of sodium silicate and 22 parts of water.
The wear-resistant waterproof auxiliary agent comprises the following main raw materials in parts by weight: 22 parts of vulcanized rubber particles, 9 parts of straw fibers, 7 parts of polyethylene wax, 9 parts of black silicon carbide and 4 parts of sodium metasilicate;
wherein the inorganic filler is talcum powder; the leveling agent is an organic silicon leveling agent;
the thickening agent is prepared by the following method: adding 0.5g of saponin into 100g of deionized water, stirring uniformly, adding 1g of sorbitan fatty acid ester and 0.2 g of lauryl phenylacetate, and grinding;
wherein the emulsifier is obtained by mixing N-alkyl trimethyl ammonium chloride and polyoxyethylene sorbitol monolaurate according to the weight ratio of 6: 2;
wherein the tackifier is hydrogenated rosin glyceride; the defoaming agent is polyether modified organic silicon; the dispersant is sodium hexametaphosphate; the stabilizer is polyvinyl alcohol; the water reducing agent is a polycarboxylic acid water reducing agent.
The preparation method of the modified waterproof coating for the road and the bridge comprises the following specific steps:
step S1: weighing the raw materials according to the weight part ratio for later use;
step S2: uniformly mixing a wear-resistant waterproof auxiliary agent, an inorganic filler, a tackifier, dibutyltin dilaurate, a defoaming agent, a dispersing agent, a stabilizer, a water reducing agent and sodium silicate, adding the leveling agent, grinding and dispersing, and sieving by a 10-mesh sieve to obtain mixture powder A for later use;
step S3: adding the polyurethane, the acrylic emulsion, the N-methyl-3-aminopropyltrimethoxysilane, the polyoxyethylene polyoxypropylene amine ether and the thickening agent into a water bath, synchronously adding deionized water, heating to 100-180 ℃, preserving heat, synchronously carrying out ultrasonic stirring for 3-4h, then carrying out vacuum drying to obtain a blocky mixture B, and finally grinding the blocky mixture B to obtain mixture B powder for later use;
step S4: and adding epoxy resin into a reaction kettle, synchronously adding the mixture powder A, the mixture powder B and an emulsifier, stirring, heating and reacting for 60-90min, then adding deionized water, keeping the temperature at 70-80 ℃, and emulsifying for 90-120min to obtain the modified waterproof coating.
Example 3
A modified waterproof coating for roads and bridges is composed of the following raw materials in parts by weight: 35 parts of cement, 13 parts of wear-resistant waterproof auxiliary agent, 11 parts of polyurethane, 1.5 parts of thickening agent, 13 parts of inorganic filler, 9 parts of acrylic emulsion, 7 parts of epoxy resin, 1.5 parts of flatting agent, 5 parts of emulsifier, 4 parts of N-methyl-3-aminopropyltrimethoxysilane, 3 parts of polyoxyethylene polyoxypropylene amine ether, 4 parts of tackifier, 3 parts of dibutyltin dilaurate, 1.5 parts of defoaming agent, 1.5 parts of dispersing agent, 3 parts of stabilizer, 3 parts of water reducing agent, 7 parts of sodium silicate and 25 parts of water.
The wear-resistant waterproof auxiliary agent comprises the following main raw materials in parts by weight: 23 parts of vulcanized rubber particles, 10 parts of straw fibers, 7 parts of polyethylene wax, 9 parts of black silicon carbide and 5 parts of sodium metasilicate;
wherein the inorganic filler is talcum powder; the leveling agent is an organic silicon leveling agent;
the thickening agent is prepared by the following method: adding 0.5g of saponin into 100g of deionized water, stirring uniformly, adding 1g of sorbitan fatty acid ester and 0.2 g of lauryl phenylacetate, and grinding;
wherein the emulsifier is obtained by mixing N-alkyl trimethyl ammonium chloride and polyoxyethylene sorbitol monolaurate according to the weight ratio of 6: 2;
wherein the tackifier is hydrogenated rosin glyceride; the defoaming agent is polyether modified organic silicon; the dispersant is sodium hexametaphosphate; the stabilizer is polyvinyl alcohol; the water reducing agent is a polycarboxylic acid water reducing agent.
The preparation method of the modified waterproof coating for the road and the bridge comprises the following specific steps:
step S1: weighing the raw materials according to the weight part ratio for later use;
step S2: uniformly mixing a wear-resistant waterproof auxiliary agent, an inorganic filler, a tackifier, dibutyltin dilaurate, a defoaming agent, a dispersing agent, a stabilizer, a water reducing agent and sodium silicate, adding the leveling agent, grinding and dispersing, and sieving by a 10-mesh sieve to obtain mixture powder A for later use;
step S3: adding the polyurethane, the acrylic emulsion, the N-methyl-3-aminopropyltrimethoxysilane, the polyoxyethylene polyoxypropylene amine ether and the thickening agent into a water bath, synchronously adding deionized water, heating to 100-180 ℃, preserving heat, synchronously carrying out ultrasonic stirring for 3-4h, then carrying out vacuum drying to obtain a blocky mixture B, and finally grinding the blocky mixture B to obtain mixture B powder for later use;
step S4: and adding epoxy resin into a reaction kettle, synchronously adding the mixture powder A, the mixture powder B and an emulsifier, stirring, heating and reacting for 60-90min, then adding deionized water, keeping the temperature at 70-80 ℃, and emulsifying for 90-120min to obtain the modified waterproof coating.
Example 4
A modified waterproof coating for roads and bridges is composed of the following raw materials in parts by weight: 37 parts of cement, 14 parts of wear-resistant waterproof auxiliary agent, 12 parts of polyurethane, 1.5 parts of thickening agent, 12 parts of inorganic filler, 8 parts of acrylic emulsion, 7 parts of epoxy resin, 1 part of flatting agent, 6 parts of emulsifier, 4 parts of N-methyl-3-aminopropyltrimethoxysilane, 4 parts of polyoxyethylene polyoxypropylene amine ether, 4 parts of tackifier, 4 parts of dibutyltin dilaurate, 1.5 parts of defoaming agent, 1 part of dispersing agent, 2 parts of stabilizer, 3 parts of water reducing agent, 8 parts of sodium silicate and 27 parts of water.
The wear-resistant waterproof auxiliary agent comprises the following main raw materials in parts by weight: 24 parts of vulcanized rubber particles, 11 parts of straw fibers, 8 parts of polyethylene wax, 10 parts of black silicon carbide and 6 parts of sodium metasilicate;
wherein the inorganic filler is talcum powder; the leveling agent is an organic silicon leveling agent;
the thickening agent is prepared by the following method: adding 0.5g of saponin into 100g of deionized water, stirring uniformly, adding 1g of sorbitan fatty acid ester and 0.2 g of lauryl phenylacetate, and grinding;
wherein the emulsifier is obtained by mixing N-alkyl trimethyl ammonium chloride and polyoxyethylene sorbitol monolaurate according to the weight ratio of 6: 2;
wherein the tackifier is hydrogenated rosin glyceride; the defoaming agent is polyether modified organic silicon; the dispersant is sodium hexametaphosphate; the stabilizer is polyvinyl alcohol; the water reducing agent is a polycarboxylic acid water reducing agent.
The preparation method of the modified waterproof coating for the road and the bridge comprises the following specific steps:
step S1: weighing the raw materials according to the weight part ratio for later use;
step S2: uniformly mixing a wear-resistant waterproof auxiliary agent, an inorganic filler, a tackifier, dibutyltin dilaurate, a defoaming agent, a dispersing agent, a stabilizer, a water reducing agent and sodium silicate, adding the leveling agent, grinding and dispersing, and sieving by a 10-mesh sieve to obtain mixture powder A for later use;
step S3: adding the polyurethane, the acrylic emulsion, the N-methyl-3-aminopropyltrimethoxysilane, the polyoxyethylene polyoxypropylene amine ether and the thickening agent into a water bath, synchronously adding deionized water, heating to 100-180 ℃, preserving heat, synchronously carrying out ultrasonic stirring for 3-4h, then carrying out vacuum drying to obtain a blocky mixture B, and finally grinding the blocky mixture B to obtain mixture B powder for later use;
step S4: and adding epoxy resin into a reaction kettle, synchronously adding the mixture powder A, the mixture powder B and an emulsifier, stirring, heating and reacting for 60-90min, then adding deionized water, keeping the temperature at 70-80 ℃, and emulsifying for 90-120min to obtain the modified waterproof coating.
Example 5
A modified waterproof coating for roads and bridges is composed of the following raw materials in parts by weight: 40 parts of cement, 11 parts of wear-resistant waterproof auxiliary agent, 10 parts of polyurethane, 2 parts of thickening agent, 14 parts of inorganic filler, 10 parts of acrylic emulsion, 8 parts of epoxy resin, 2 parts of flatting agent, 4 parts of emulsifier, 3 parts of N-methyl-3-aminopropyltrimethoxysilane, 2 parts of polyoxyethylene polyoxypropylene amine ether, 5 parts of tackifier, 3 parts of dibutyltin dilaurate, 2 parts of defoaming agent, 1 part of dispersing agent, 4 parts of stabilizing agent, 4 parts of water reducing agent, 6 parts of sodium silicate and 30 parts of water.
The wear-resistant waterproof auxiliary agent comprises the following main raw materials in parts by weight: 25 parts of vulcanized rubber particles, 12 parts of straw fibers, 7 parts of polyethylene wax, 8 parts of black silicon carbide and 6 parts of sodium metasilicate;
wherein the inorganic filler is talcum powder; the leveling agent is an organic silicon leveling agent;
the thickening agent is prepared by the following method: adding 0.5g of saponin into 100g of deionized water, stirring uniformly, adding 1g of sorbitan fatty acid ester and 0.2 g of lauryl phenylacetate, and grinding;
wherein the emulsifier is obtained by mixing N-alkyl trimethyl ammonium chloride and polyoxyethylene sorbitol monolaurate according to the weight ratio of 6: 2;
wherein the tackifier is hydrogenated rosin glyceride; the defoaming agent is polyether modified organic silicon; the dispersant is sodium hexametaphosphate; the stabilizer is polyvinyl alcohol; the water reducing agent is a polycarboxylic acid water reducing agent.
The preparation method of the modified waterproof coating for the road and the bridge comprises the following specific steps:
step S1: weighing the raw materials according to the weight part ratio for later use;
step S2: uniformly mixing a wear-resistant waterproof auxiliary agent, an inorganic filler, a tackifier, dibutyltin dilaurate, a defoaming agent, a dispersing agent, a stabilizer, a water reducing agent and sodium silicate, adding the leveling agent, grinding and dispersing, and sieving by a 10-mesh sieve to obtain mixture powder A for later use;
step S3: adding the polyurethane, the acrylic emulsion, the N-methyl-3-aminopropyltrimethoxysilane, the polyoxyethylene polyoxypropylene amine ether and the thickening agent into a water bath, synchronously adding deionized water, heating to 100-180 ℃, preserving heat, synchronously carrying out ultrasonic stirring for 3-4h, then carrying out vacuum drying to obtain a blocky mixture B, and finally grinding the blocky mixture B to obtain mixture B powder for later use;
step S4: and adding epoxy resin into a reaction kettle, synchronously adding the mixture powder A, the mixture powder B and an emulsifier, stirring, heating and reacting for 60-90min, then adding deionized water, keeping the temperature at 70-80 ℃, and emulsifying for 90-120min to obtain the modified waterproof coating.
The waterproof coating for roads and bridges prepared in the embodiments 1 to 5, cement, water, sand and gravel are mixed according to the ratio of 1: 0.5: 2: 3, mixing the materials in a ratio to prepare concrete 1-5; the wear resistance and the waterproof performance of the concrete 1-5 are determined to meet the acceptance criteria of road engineering construction and quality (CJJ1-2008), and the wear resistance (according to the wear resistance test method (GB/T169925-1997)) and the impermeability grade (according to the concrete quality control standard (GB 50164-2011)) are shown in the following table 1.
TABLE 1 results of concrete abrasion and impermeability tests
The experimental data in table 1 show that the concrete prepared from the waterproof coating for road and bridge described in examples 1 to 5 has high abrasion resistance and impermeability, which indicates that the waterproof coating for road and bridge prepared by the invention has excellent abrasion resistance and waterproof performance, wherein the concrete prepared in example 3 has the highest abrasion resistance and impermeability, and thus example 3 is the best scheme.
The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are merely illustrative of the principles of the invention, but that various changes and modifications may be made without departing from the spirit and scope of the invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (10)
1. The modified waterproof coating for the road and the bridge is characterized by comprising the following components in parts by weight: the composite material is prepared from the following raw materials in parts by weight: 30-40 parts of cement, 10-15 parts of wear-resistant waterproof auxiliary agent, 10-12 parts of polyurethane, 1-2 parts of thickening agent, 10-15 parts of inorganic filler, 8-10 parts of acrylic emulsion, 6-8 parts of epoxy resin, 1-2 parts of flatting agent, 4-6 parts of emulsifier, 3-5 parts of N-methyl-3-aminopropyltrimethoxysilane, 2-4 parts of polyoxyethylene polyoxypropylene amine ether, 3-5 parts of tackifier, 2-4 parts of dibutyltin dilaurate, 1-2 parts of defoaming agent, 1-2 parts of dispersing agent, 2-4 parts of stabilizer, 2-4 parts of water reducing agent, 6-8 parts of sodium silicate and 20-30 parts of water.
2. The modified waterproof coating for road and bridge as claimed in claim 1, wherein: the wear-resistant waterproof auxiliary agent comprises the following main raw materials in parts by weight: 20-25 parts of vulcanized rubber particles, 8-12 parts of straw fibers, 6-8 parts of polyethylene wax, 8-10 parts of black silicon carbide and 4-6 parts of sodium metasilicate.
3. The modified waterproof coating for road and bridge as claimed in claim 1, wherein: the inorganic filler is one or the combination of talcum powder, silicon dioxide powder and bentonite.
4. The modified waterproof coating for road and bridge as claimed in claim 1, wherein: the leveling agent is one or a mixture of an organic silicon leveling agent and a polyacrylate leveling agent.
5. The modified waterproof coating for road and bridge as claimed in claim 1, wherein: the thickening agent is prepared by adopting the following method: adding 0.5g of saponin into 100g of deionized water, stirring uniformly, adding 1g of sorbitan fatty acid ester and 0.2 g of lauryl phenylacetate, and grinding.
6. The modified waterproof coating for road and bridge as claimed in claim 1, wherein: the emulsifier is obtained by mixing N-alkyl trimethyl ammonium chloride and polyoxyethylene sorbitol monolaurate according to the weight ratio of 6: 2.
7. The modified waterproof coating for road and bridge as claimed in claim 1, wherein: the tackifier is one or a combination of hydrogenated rosin glyceride, hydrogenated rosin pentaerythritol ester and rosin glyceride.
8. The modified waterproof coating for road and bridge as claimed in claim 1, wherein: the defoaming agent is one or a combination of polyether modified organosilicon, polysiloxane or phenethyl alcohol oleate; the dispersant is sodium hexametaphosphate.
9. The modified waterproof coating for road and bridge as claimed in claim 1, wherein: the stabilizer is polyvinyl alcohol or sodium carboxymethyl cellulose; the water reducing agent is a polycarboxylic acid water reducing agent.
10. A process for preparing a modified waterproofing paint for road and bridge as claimed in any one of claims 1 to 9, characterized in that: the method comprises the following specific steps:
step S1: weighing the raw materials according to the weight part ratio for later use;
step S2: uniformly mixing a wear-resistant waterproof auxiliary agent, an inorganic filler, a tackifier, dibutyltin dilaurate, a defoaming agent, a dispersing agent, a stabilizer, a water reducing agent and sodium silicate, adding the leveling agent, grinding and dispersing, and sieving by a 10-mesh sieve to obtain mixture powder A for later use;
step S3: adding the polyurethane, the acrylic emulsion, the N-methyl-3-aminopropyltrimethoxysilane, the polyoxyethylene polyoxypropylene amine ether and the thickening agent into a water bath, synchronously adding deionized water, heating to 100-180 ℃, preserving heat, synchronously carrying out ultrasonic stirring for 3-4h, then carrying out vacuum drying to obtain a blocky mixture B, and finally grinding the blocky mixture B to obtain mixture B powder for later use;
step S4: and adding epoxy resin into a reaction kettle, synchronously adding the mixture powder A, the mixture powder B and an emulsifier, stirring, heating and reacting for 60-90min, then adding deionized water, keeping the temperature at 70-80 ℃, and emulsifying for 90-120min to obtain the modified waterproof coating.
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| CN202010215791.5A CN111171610A (en) | 2020-03-25 | 2020-03-25 | Modified waterproof coating for roads and bridges and preparation method thereof |
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| CN202010215791.5A CN111171610A (en) | 2020-03-25 | 2020-03-25 | Modified waterproof coating for roads and bridges and preparation method thereof |
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