CN112012240B - Waterproof basement bottom plate that row combination is prevented to cavity - Google Patents
Waterproof basement bottom plate that row combination is prevented to cavity Download PDFInfo
- Publication number
- CN112012240B CN112012240B CN202010874153.4A CN202010874153A CN112012240B CN 112012240 B CN112012240 B CN 112012240B CN 202010874153 A CN202010874153 A CN 202010874153A CN 112012240 B CN112012240 B CN 112012240B
- Authority
- CN
- China
- Prior art keywords
- graphene oxide
- solution
- mass ratio
- stirring
- hexamethylol melamine
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D29/00—Independent underground or underwater structures; Retaining walls
- E02D29/045—Underground structures, e.g. tunnels or galleries, built in the open air or by methods involving disturbance of the ground surface all along the location line; Methods of making them
-
- 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
- C09D175/00—Coating compositions based on polyureas or polyurethanes; Coating compositions based on derivatives of such polymers
- C09D175/04—Polyurethanes
-
- 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
- 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
- C09D7/62—Additives non-macromolecular inorganic modified by treatment with other compounds
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D31/00—Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution
- E02D31/02—Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution against ground humidity or ground water
-
- 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
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D2300/00—Materials
- E02D2300/0004—Synthetics
- E02D2300/0006—Plastics
- E02D2300/0014—PU
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D2300/00—Materials
- E02D2300/0045—Composites
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Organic Chemistry (AREA)
- Wood Science & Technology (AREA)
- Materials Engineering (AREA)
- Mining & Mineral Resources (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Civil Engineering (AREA)
- Inorganic Chemistry (AREA)
- Paleontology (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Hydrology & Water Resources (AREA)
- Carbon And Carbon Compounds (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The invention relates to the field of building structures, in particular to a hollow waterproof basement bottom plate with combination of prevention and drainage, which comprises an upper end surface, a spacing layer and a lower end surface which are sequentially arranged from top to bottom; a connecting structure is arranged in the spacing layer, one end of the connecting structure is connected with the upper end face, and the other end of the connecting structure is connected with the lower end face; the upper surface of the upper end face is also coated with an impermeable layer. The basement bottom plate designed by the invention is hollow, so that underground water can be drained in time when overflowing, water permeating the basement bottom plate is drained to a position below the bottom plate in time through the spacing layer and the drainage grooves, and then is drained to the water collecting pit through the drainage channel. Meanwhile, in order to avoid water seepage of the basement bottom plate, the upper end face of the basement bottom plate is coated with an impermeable layer, the impermeable layer is prepared by taking super-hydrophobic polyurethane as a main raw material and taking inorganic powder and modified graphene oxide as main ingredients, and a waterproof effect can be better achieved.
Description
Technical Field
The invention relates to the field of building structures, in particular to a hollow waterproof basement bottom plate with a combination of prevention and drainage.
Background
Along with the needs of city construction development, the degree of depth and the width of basement also are increasing constantly, and basement is more and more common as people's air defense, parking area, but because underground water pressure is big or waterproof engineering construction is careless, basement ground infiltration phenomenon ubiquitous, and the leak stoppage is adopted repeatedly to the conventional method to repair, and is consuming time and power, makes engineering maintenance cost high, and groundwater infiltration hidden danger exists for a long time, influences the use of basement.
Therefore, it is necessary to design a basement bottom plate which can effectively remove underground water and has a good waterproof effect.
Disclosure of Invention
Aiming at the problems, the invention provides a hollow waterproof basement bottom plate with combination of prevention and drainage, which comprises an upper end surface, a spacing layer and a lower end surface which are sequentially arranged from top to bottom; a connecting structure is arranged in the spacing layer, one end of the connecting structure is connected with the upper end face, and the other end of the connecting structure is connected with the lower end face; the upper surface of the upper end face is also coated with an impermeable layer.
Preferably, the joints of the connecting structure and the upper end face and the lower end face are provided with reinforcing ribs.
Preferably, a drainage groove is formed above the upper end face, a drainage channel is formed above the lower end face, and water drained in the drainage groove passes through the drainage channel and is led to the water collecting well.
Preferably, the barrier layer is coated with a barrier coating; the anti-seepage coating comprises the following components in parts by weight:
30-60 parts of super-hydrophobic polyurethane, 25-40 parts of inorganic powder, 2-10 parts of modified graphene oxide, 1-8 parts of film-forming assistant, 1-5 parts of dispersant, 0.1-0.5 part of thickener, 0.5-2 parts of flatting agent and 1-5 parts of defoaming agent.
Preferably, the inorganic powder is talc powder and/or ground calcium carbonate.
Preferably, the coalescent is an alcohol ester twelve.
Preferably, the dispersant is sodium lauryl sulfate.
Preferably, the thickener is at least one of hydroxyethyl cellulose, hydroxymethyl cellulose and hydroxypropyl cellulose.
Preferably, the leveling agent is a modified acrylic leveling agent and/or a fluorine-modified acrylic leveling agent.
Preferably, the defoaming agent is at least one of a silicone defoaming agent, a fatty acid ester defoaming agent, and a polyether defoaming agent.
Preferably, the preparation method of the super-hydrophobic polyurethane comprises the following steps:
s1, weighing tert-butyl triphenyl phosphate, adding the tert-butyl triphenyl phosphate into absolute ethyl alcohol, stirring the mixture evenly, adding sodium xylene sulfonate, placing the mixture in a water bath at a temperature of between 80 and 90 ℃, stirring the mixture for 0.5 to 1 hour, dropwise adding 0.1mol/L hydrochloric acid until the pH value is between 3.5 and 4.5, and continuously stirring the mixture for 1 to 2 hours to obtain a mixed precursor solution;
wherein the mass ratio of the tert-butyl triphenyl phosphate to the sodium xylene sulfonate to the absolute ethyl alcohol is 1.2-0.4;
s2, heating the mixed precursor liquid to 70-80 ℃, dropwise adding isooctyl acrylate, adding dimethyl azodiisobutyrate and vinyl triethoxysilane after dropwise adding, stirring for reaction for 3-5 h, naturally cooling to room temperature, filtering to obtain a solid, washing with deionized water for three times, then washing with acetone for three times, drying under reduced pressure, and crushing into nanoparticles to obtain a modifier;
wherein the mass ratio of the isooctyl acrylate, the dimethyl azodiisobutyrate and the vinyltriethoxysilane to the mixed precursor liquid is 1: 0.1-0.2;
s3, adding the modifier into polyethylene glycol, ultrasonically dispersing until the modifier is uniform, sequentially adding toluene diisocyanate, 1,3-propylene glycol and dimethylcyclohexylamine under the protection of inert gas, heating to 70-80 ℃, and stirring for reacting for 1-4 hours to obtain a prepolymer; adding dimethylolpropionic acid into the prepolymer, continuously stirring and reacting for 1-4 h at the temperature of 70-80 ℃, and then dropwise adding ethanolamine to adjust the liquid to be neutral, thereby obtaining the super-hydrophobic polyurethane;
wherein the mass ratio of the modifier to the polyethylene glycol to the toluene diisocyanate to the 1,3-propylene glycol to the dimethylcyclohexylamine is 1:8-14, and the mass ratio is 1:8-0.05-0.1; the mass ratio of the dimethylolpropionic acid to the prepolymer is 1:7-16.
Preferably, the modified graphene oxide is prepared by reacting hexamethylol melamine oxide with activated graphene oxide.
Preferably, the preparation method of the activated graphene oxide comprises the following steps:
s1, weighing concentrated sulfuric acid with the mass concentration of 98%, placing the concentrated sulfuric acid in an ice water bath, adding sodium sulfate, stirring until the sodium sulfate is dissolved, adding nano graphite, stirring and reacting for 0.5-1 h, adding potassium permanganate, and continuing to stir and react for 1-2 h; the temperature is increased to 35 to 50 ℃ for the first time, and the mixture is stirred and reacts for 2 to 5 hours; heating to 80-90 ℃ for the second time, adding hydrogen peroxide with the mass concentration of 10-20%, continuously stirring for 0.1-0.5 h, cooling to room temperature, and washing with deionized water to be neutral to obtain graphene oxide;
wherein the mass ratio of the nano graphite, the sodium sulfate, the potassium permanganate, the hydrogen peroxide and the concentrated sulfuric acid is 1.05-0.1;
s2, weighing the graphene oxide, adding the graphene oxide into deionized water, and ultrasonically dispersing until the graphene oxide is uniform to obtain a graphene oxide solution; weighing aniline methyl triethoxysilane, adding the aniline methyl triethoxysilane into deionized water, and stirring uniformly to obtain aniline methyl triethoxysilane solution; dropwise adding the aniline methyl triethoxysilane solution into the graphene oxide solution, heating to 50-70 ℃, stirring for 5-10 h, cooling to room temperature, filtering to obtain a solid, washing with deionized water for three times, then washing with acetone for three times, and drying under reduced pressure to obtain activated graphene oxide;
in the graphene oxide solution, the mass ratio of the graphene oxide to the deionized water is 1:3-5; in the aniline methyl triethoxysilane solution, the mass ratio of aniline methyl triethoxysilane to deionized water is 1:6-8; the mass ratio of the aniline methyl triethoxysilane solution to the graphene oxide solution is 1:2-3.
Preferably, the preparation method of the modified graphene oxide comprises the following steps:
s1, weighing potassium permanganate, and dissolving the potassium permanganate in a 0.1mol/L sulfuric acid solution to obtain a potassium permanganate acid solution; weighing hexamethylol melamine, adding the hexamethylol melamine into deionized water, stirring until the hexamethylol melamine is dissolved, placing the mixture in a water bath environment at 50-60 ℃, dropwise adding the potassium permanganate acid solution until the pH of the solution is = 1.0-2.0, reacting for 1-3 h, cooling to room temperature, adding dichloromethane for extraction, taking an organic phase, and performing rotary evaporation to remove a solvent to obtain hexamethylol melamine oxide;
wherein the mass ratio of potassium permanganate to sulfuric acid solution is 1; the mass ratio of the hexamethylol melamine to the deionized water is 1:3-6;
s2, weighing the activated graphene oxide, adding the activated graphene oxide into N, N-dimethylformamide, and ultrasonically dispersing until the graphene oxide is uniform to obtain an activated graphene oxide solution; weighing dicyclohexylcarbodiimide, adding the dicyclohexylcarbodiimide into N, N-dimethylformamide, and stirring uniformly to obtain a dicyclohexylcarbodiimide solution; adding the hexamethylol melamine oxide into N, N-dimethylformamide, and stirring until the hexamethylol melamine oxide is dissolved to obtain a hexamethylol melamine oxide solution;
in the activated graphene oxide solution, the mass ratio of the activated graphene oxide to the N, N-dimethylformamide is 1:5-8; in the dicyclohexylcarbodiimide solution, the mass ratio of dicyclohexylcarbodiimide to N, N-dimethylformamide is 1:6-10; in the hexamethylol melamine oxide solution, the mass ratio of the hexamethylol melamine oxide to the N, N-dimethylformamide is 1:5-12;
s3, dropwise adding the dicyclohexylcarbodiimide solution into the activated graphene oxide solution, heating to 50-60 ℃, stirring for 0.2-0.5 h, introducing inert gas as protective gas, dropwise adding the hexamethylol melamine oxide solution, stirring for 8-16 h, cooling to room temperature, filtering to obtain a solid, washing with deionized water for three times, then washing with dichloromethane for three times, and drying under reduced pressure to obtain modified graphene oxide;
wherein the mass ratio of the dicyclohexylcarbodiimide solution to the activated graphene oxide solution to the hexamethylolmelamine oxide solution is 1:2-5.
The invention has the beneficial effects that:
1. the invention provides a hollow waterproof basement bottom plate with combined prevention and drainage, wherein the basement bottom plate is hollow, so that underground water can be drained out in time when overflowing conveniently, water permeating the basement bottom plate is drained to the position below the bottom plate in time through a spacing layer and a drainage groove, and then the water is drained to a water collecting pit through a drainage channel. Meanwhile, in order to avoid water seepage of the basement bottom plate, the upper end face of the basement bottom plate is coated with an impermeable layer, the impermeable layer is prepared by taking super-hydrophobic polyurethane as a main raw material and taking inorganic powder and modified graphene oxide as main ingredients, and a waterproof effect can be better achieved.
2. The main raw material of the anti-seepage layer is super-hydrophobic polyurethane which is obtained by modifying on the basis of polyurethane. Polyurethane is used for building waterproof materials because of higher oxidation stability, excellent oil resistance and solvent resistance and stronger bonding property with cement; but the flame-retardant cable material is low in tensile strength, easy to crack under the action of external force to cause waterproof failure, poor in flame-retardant property, high in combustion speed and capable of generating excessive molten drops in the process.
According to the invention, the super-hydrophobic polyurethane is prepared to enhance the hydrophobicity of the polyurethane, and simultaneously enhance the tensile strength and the flame retardance of the polyurethane. Firstly, forming uniform mixed precursor liquid by using tert-butyl triphenyl phosphate under the action of sodium dimethyl benzene sulfonate serving as an emulsifying dispersant; adding isooctyl acrylate monomer, and carrying out polymerization reaction under the action of an initiator dimethyl azodiisobutyrate and a chain extender vinyl triethoxysilane to generate a coated microsphere with isooctyl acrylate polymer as a shell and tert-butylated triphenyl phosphate as an inner core; and then the modifier of the obtained coated microspheres participates in the polymerization reaction of polyurethane (toluene diisocyanate and polyethylene glycol are used as raw materials, 1,3-propylene glycol is used as a chain extender, and dimethylcyclohexylamine is used as a catalyst), so that the super-hydrophobic polyurethane is prepared. The modifier prepared and synthesized by the invention is of a wrapped microsphere structure, and the tert-butyl triphenyl phosphate has stronger water resistance, but has fewer surface active groups and poorer compatibility after being combined with polyurethane, so that the tert-butyl triphenyl phosphate is used as an inner core, and the isooctyl acrylate polymer with excellent compatibility is used as an outer shell, thereby forming a shell-core wrapped structure which has both water resistance and better compatibility. In addition, the tert-butyl triphenyl phosphate and the isooctyl acrylate polymer have certain flame retardance, so that the finally prepared super-hydrophobic polyurethane not only greatly enhances the hydrophobic effect of the polyurethane, but also further improves the flame retardance of the polyurethane.
3. In addition, modified graphene oxide is added in the impermeable layer, and the graphene has stronger toughness and excellent elasticity, but the application of the graphene is always limited due to poor dispersibility in a polymer material. According to the invention, the graphene oxide is modified to have good dispersibility, and the graphene oxide is added into the anti-seepage layer to improve the tensile property. Firstly, preparing graphite into graphene oxide, and then adding aniline methyl triethoxysilane to activate the amino of the graphene to obtain the graphene oxide with amino uniformly distributed on the surface; and then, by preparing hexamethylol melamine oxide containing rich carboxyl, the activated graphene oxide and the hexamethylol melamine oxide are combined through a cross-linking reaction of amino and carboxyl, finally, a modified molecular chain is formed on the surface of the graphene oxide, and an interfacial cross-linking network connection is provided between the polymer material and the graphene oxide, so that the dispersibility and compatibility of the graphene oxide in the polymer material are improved, a firm protective barrier can be formed, and the stable connectivity between the polymer material and the graphene oxide is enhanced.
Drawings
The invention is further illustrated by means of the attached drawings, but the embodiments in the drawings do not constitute any limitation to the invention, and for a person skilled in the art, other drawings can be obtained on the basis of the following drawings without inventive effort.
FIG. 1 is a schematic cross-sectional view of a hollow drainage-resistant combination waterproof basement floor of the present invention;
fig. 2 is a schematic structural view of a hollow waterproof basement bottom plate combined with a waterproof and drainage-preventing structure according to the invention.
Reference numerals are as follows:
the water-saving wall comprises an upper end surface 1, a spacer layer 2, a lower end surface 3, a connecting structure 4, a reinforcing rib 5, a drainage groove 6 and a drainage channel 7.
Detailed Description
The invention is further described with reference to the following examples.
Example 1
A hollow waterproof basement bottom plate with combination of prevention and drainage comprises an upper end surface 1, a spacing layer 2 and a lower end surface 3 which are sequentially arranged from top to bottom; a connecting structure 4 is arranged inside the spacing layer 2; one end of the connecting structure 4 is connected with the upper end face 1, and the other end of the connecting structure is connected with the lower end face 3; the upper surface of the upper end face 1 is also coated with an impermeable layer.
And reinforcing ribs 5 are arranged at the joints of the connecting structure 4 and the upper end surface 1 and the lower end surface 3.
A drainage groove 6 is arranged above the upper end face 1, a drainage channel 7 is arranged above the lower end face 2, and water drained from the drainage groove 6 falls to the drainage channel 7 and then passes through the drainage channel 7 to be led to a water collecting well.
In another embodiment, the drainage channel 6 is connected to the drainage channel 7 by a pipe, and the water in the drainage channel 6 flows to the drainage channel 7 by a pipe.
The anti-seepage layer is formed by coating anti-seepage paint; the anti-seepage coating comprises the following components in parts by weight:
45 parts of super-hydrophobic polyurethane, 32 parts of inorganic powder, 6 parts of modified graphene oxide, 5 parts of a film-forming assistant, 3 parts of a dispersing agent, 0.2 part of a thickening agent, 1 part of a leveling agent and 3 parts of a defoaming agent.
The inorganic powder is talcum powder.
The film-forming aid is alcohol ester twelve.
The dispersing agent is sodium dodecyl sulfate.
The thickening agent is hydroxyethyl cellulose.
The leveling agent is a modified acrylic leveling agent.
The defoaming agent is an organic silicon defoaming agent.
The preparation method of the super-hydrophobic polyurethane comprises the following steps:
s1, weighing tert-butyl triphenyl phosphate, adding the tert-butyl triphenyl phosphate into absolute ethyl alcohol, stirring the mixture evenly, adding sodium xylene sulfonate, placing the mixture in a water bath at a temperature of between 80 and 90 ℃, stirring the mixture for 0.5 to 1 hour, dropwise adding 0.1mol/L hydrochloric acid until the pH value is between 3.5 and 4.5, and continuously stirring the mixture for 1 to 2 hours to obtain a mixed precursor solution;
wherein the mass ratio of the tert-butyl triphenyl phosphate to the sodium xylene sulfonate to the absolute ethyl alcohol is 1.2-0.4;
s2, heating the mixed precursor liquid to 70-80 ℃, dropwise adding isooctyl acrylate, adding dimethyl azodiisobutyrate and vinyl triethoxysilane after dropwise adding, stirring for reaction for 3-5 h, naturally cooling to room temperature, filtering to obtain a solid, washing with deionized water for three times, then washing with acetone for three times, drying under reduced pressure, and crushing into nanoparticles to obtain a modifier;
wherein the mass ratio of the isooctyl acrylate, the dimethyl azodiisobutyrate and the vinyltriethoxysilane to the mixed precursor liquid is 1: 0.1-0.2;
s3, adding the modifier into polyethylene glycol, ultrasonically dispersing until the modifier is uniform, sequentially adding toluene diisocyanate, 1,3-propylene glycol and dimethylcyclohexylamine under the protection of inert gas, heating to 70-80 ℃, and stirring for reacting for 1-4 hours to obtain a prepolymer; adding dimethylolpropionic acid into the prepolymer, continuously stirring and reacting for 1-4 h at 70-80 ℃, and then dropwise adding ethanolamine to adjust the liquid to be neutral, thereby obtaining the super-hydrophobic polyurethane;
wherein the mass ratio of the modifier to the polyethylene glycol to the toluene diisocyanate to the 1,3-propylene glycol to the dimethylcyclohexylamine is 1:8-14, and the mass ratio is 1:8-0.05-0.1; the mass ratio of the dimethylolpropionic acid to the prepolymer is 1:7-16.
The modified graphene oxide is prepared by reacting hexamethylol melamine oxide with activated graphene oxide.
The preparation method of the activated graphene oxide comprises the following steps:
s1, weighing concentrated sulfuric acid with the mass concentration of 98%, placing the concentrated sulfuric acid in an ice water bath, adding sodium sulfate, stirring until the sodium sulfate is dissolved, adding nano graphite, stirring and reacting for 0.5-1 h, adding potassium permanganate, and continuing to stir and react for 1-2 h; the temperature is increased to 35 to 50 ℃ for the first time, and the mixture is stirred and reacts for 2 to 5 hours; heating to 80-90 ℃ for the second time, adding hydrogen peroxide with the mass concentration of 10-20%, continuously stirring for 0.1-0.5 h, cooling to room temperature, and washing with deionized water to be neutral to obtain graphene oxide;
wherein the mass ratio of the nano graphite, the sodium sulfate, the potassium permanganate, the hydrogen peroxide and the concentrated sulfuric acid is 1.05-0.1;
s2, weighing the graphene oxide, adding the graphene oxide into deionized water, and ultrasonically dispersing until the graphene oxide is uniform to obtain a graphene oxide solution; weighing aniline methyl triethoxysilane, adding the aniline methyl triethoxysilane into deionized water, and stirring uniformly to obtain aniline methyl triethoxysilane solution; dropwise adding the aniline methyl triethoxysilane solution into the graphene oxide solution, heating to 50-70 ℃, stirring for 5-10 h, cooling to room temperature, filtering to obtain a solid, washing with deionized water for three times, then washing with acetone for three times, and drying under reduced pressure to obtain activated graphene oxide;
in the graphene oxide solution, the mass ratio of the graphene oxide to the deionized water is 1:3-5; in the aniline methyl triethoxysilane solution, the mass ratio of aniline methyl triethoxysilane to deionized water is 1:6-8; the mass ratio of the aniline methyl triethoxysilane solution to the graphene oxide solution is 1:2-3.
The preparation method of the modified graphene oxide comprises the following steps:
s1, weighing potassium permanganate, and dissolving the potassium permanganate in a 0.1mol/L sulfuric acid solution to obtain a potassium permanganate acid solution; weighing hexamethylol melamine, adding the hexamethylol melamine into deionized water, stirring until the hexamethylol melamine is dissolved, placing the mixture in a water bath environment at 50-60 ℃, dropwise adding the potassium permanganate acid solution until the pH of the solution is = 1.0-2.0, reacting for 1-3 h, cooling to room temperature, adding dichloromethane for extraction, taking an organic phase, and performing rotary evaporation to remove a solvent to obtain hexamethylol melamine oxide;
wherein the mass ratio of potassium permanganate to sulfuric acid solution is 1; the mass ratio of the hexamethylol melamine to the deionized water is 1:3-6;
s2, weighing the activated graphene oxide, adding the activated graphene oxide into N, N-dimethylformamide, and ultrasonically dispersing until the graphene oxide is uniform to obtain an activated graphene oxide solution; weighing dicyclohexylcarbodiimide, adding the dicyclohexylcarbodiimide into N, N-dimethylformamide, and stirring uniformly to obtain a dicyclohexylcarbodiimide solution; adding the hexamethylol melamine oxide into N, N-dimethylformamide, and stirring until the hexamethylol melamine oxide is dissolved to obtain a hexamethylol melamine oxide solution;
in the activated graphene oxide solution, the mass ratio of the activated graphene oxide to the N, N-dimethylformamide is 1:5-8; in the dicyclohexylcarbodiimide solution, the mass ratio of dicyclohexylcarbodiimide to N, N-dimethylformamide is 1:6-10; in the hexamethylol melamine oxide solution, the mass ratio of hexamethylol melamine oxide to N, N-dimethylformamide is 1:5-12;
s3, dropwise adding the dicyclohexylcarbodiimide solution into the activated graphene oxide solution, heating to 50-60 ℃, stirring for 0.2-0.5 h, introducing inert gas as protective gas, dropwise adding the hexamethylol melamine oxide solution, stirring for reaction for 8-16 h, cooling to room temperature, filtering to obtain a solid, washing with deionized water for three times, then washing with dichloromethane for three times, and drying under reduced pressure to obtain modified graphene oxide;
wherein the mass ratio of the dicyclohexylcarbodiimide solution to the activated graphene oxide solution to the hexamethylolmelamine oxide solution is 1:2-5.
Example 2
A hollow waterproof basement bottom plate with combination of prevention and drainage comprises an upper end surface 1, a spacing layer 2 and a lower end surface 3 which are sequentially arranged from top to bottom; a connecting structure 4 is arranged inside the spacing layer 2; one end of the connecting structure 4 is connected with the upper end face 1, and the other end of the connecting structure is connected with the lower end face 3; the upper surface of the upper end face 1 is also coated with an impermeable layer.
And reinforcing ribs 5 are arranged at the joints of the connecting structure 4 and the upper end surface 1 and the lower end surface 3.
A water drainage groove 6 is arranged above the upper end face 1, a water drainage channel 7 is arranged above the lower end face 2, and water drained from the water drainage groove 6 falls to the water drainage channel 7 and then passes through the water drainage channel 7 to be led to a water collecting well.
In another embodiment, the drainage channel 6 is connected to the drainage channel 7 by a pipe, and the water in the drainage channel 6 flows to the drainage channel 7 by a pipe.
The anti-seepage layer is formed by coating anti-seepage paint; the anti-seepage coating comprises the following components in parts by weight:
30 parts of super-hydrophobic polyurethane, 25 parts of inorganic powder, 2 parts of modified graphene oxide, 1 part of a film-forming assistant, 1 part of a dispersing agent, 0.1 part of a thickening agent, 0.5 part of a flatting agent and 1 part of a defoaming agent.
The inorganic powder is talcum powder and heavy calcium carbonate.
The film-forming aid is alcohol ester twelve.
The dispersing agent is sodium dodecyl sulfate.
The thickening agent is hydroxymethyl cellulose.
The leveling agent is a fluorine modified acrylic leveling agent.
The defoaming agent is a fatty acid ester defoaming agent.
The preparation method of the super-hydrophobic polyurethane comprises the following steps:
s1, weighing tert-butyl triphenyl phosphate, adding the tert-butyl triphenyl phosphate into absolute ethyl alcohol, stirring the mixture evenly, adding sodium xylene sulfonate, placing the mixture in a water bath at a temperature of between 80 and 90 ℃, stirring the mixture for 0.5 to 1 hour, dropwise adding 0.1mol/L hydrochloric acid until the pH value is =3.5 to 4.5, and continuously stirring the mixture for 1 to 2 hours to obtain a mixed precursor solution;
wherein the mass ratio of the tert-butyl triphenyl phosphate to the sodium xylene sulfonate to the absolute ethyl alcohol is 1.2-0.4;
s2, heating the mixed precursor liquid to 70-80 ℃, dropwise adding isooctyl acrylate, adding dimethyl azodiisobutyrate and vinyl triethoxysilane after dropwise adding, stirring for reaction for 3-5 h, naturally cooling to room temperature, filtering to obtain a solid, washing with deionized water for three times, then washing with acetone for three times, drying under reduced pressure, and crushing into nanoparticles to obtain a modifier;
wherein the mass ratio of the isooctyl acrylate, the dimethyl azodiisobutyrate and the vinyltriethoxysilane to the mixed precursor liquid is 1: 0.1-0.2;
s3, adding the modifier into polyethylene glycol, ultrasonically dispersing until the modifier is uniform, sequentially adding toluene diisocyanate, 1,3-propylene glycol and dimethylcyclohexylamine under the protection of inert gas, heating to 70-80 ℃, and stirring for reacting for 1-4 hours to obtain a prepolymer; adding dimethylolpropionic acid into the prepolymer, continuously stirring and reacting for 1-4 h at 70-80 ℃, and then dropwise adding ethanolamine to adjust the liquid to be neutral, thereby obtaining the super-hydrophobic polyurethane;
wherein the mass ratio of the modifier to the polyethylene glycol to the toluene diisocyanate to the 1,3-propylene glycol to the dimethylcyclohexylamine is 1:8-14, and the mass ratio is 1:8-0.05-0.1; the mass ratio of the dimethylolpropionic acid to the prepolymer is 1:7-16.
The modified graphene oxide is prepared by reacting hexamethylol melamine oxide with activated graphene oxide.
The preparation method of the activated graphene oxide comprises the following steps:
s1, weighing concentrated sulfuric acid with the mass concentration of 98%, placing the concentrated sulfuric acid in an ice water bath, adding sodium sulfate, stirring until the sodium sulfate is dissolved, adding nano graphite, stirring and reacting for 0.5-1 h, adding potassium permanganate, and continuing to stir and react for 1-2 h; the temperature is increased to 35 to 50 ℃ for the first time, and the mixture is stirred and reacts for 2 to 5 hours; heating to 80-90 ℃ for the second time, adding hydrogen peroxide with the mass concentration of 10-20%, continuously stirring for 0.1-0.5 h, cooling to room temperature, and washing with deionized water to be neutral to obtain graphene oxide;
wherein the mass ratio of the nano graphite, the sodium sulfate, the potassium permanganate, the hydrogen peroxide and the concentrated sulfuric acid is (1) to (0.03-0.1);
s2, weighing the graphene oxide, adding the graphene oxide into deionized water, and ultrasonically dispersing until the graphene oxide is uniform to obtain a graphene oxide solution; weighing aniline methyl triethoxysilane, adding the aniline methyl triethoxysilane into deionized water, and stirring uniformly to obtain aniline methyl triethoxysilane solution; dropwise adding the aniline methyl triethoxysilane solution into the graphene oxide solution, heating to 50-70 ℃, stirring for 5-10 h, cooling to room temperature, filtering to obtain a solid, washing with deionized water for three times, then washing with acetone for three times, and drying under reduced pressure to obtain activated graphene oxide;
in the graphene oxide solution, the mass ratio of the graphene oxide to the deionized water is 1:3-5; in the aniline methyl triethoxysilane solution, the mass ratio of aniline methyl triethoxysilane to deionized water is 1:6-8; the mass ratio of the aniline methyl triethoxysilane solution to the graphene oxide solution is 1:2-3.
The preparation method of the modified graphene oxide comprises the following steps:
s1, weighing potassium permanganate, and dissolving the potassium permanganate in a 0.1mol/L sulfuric acid solution to obtain a potassium permanganate acid solution; weighing hexamethylol melamine, adding the hexamethylol melamine into deionized water, stirring until the hexamethylol melamine is dissolved, placing the mixture in a water bath environment at 50-60 ℃, dropwise adding the potassium permanganate acid solution until the pH of the solution is = 1.0-2.0, reacting for 1-3 h, cooling to room temperature, adding dichloromethane for extraction, taking an organic phase, and performing rotary evaporation to remove a solvent to obtain hexamethylol melamine oxide;
wherein the mass ratio of potassium permanganate to sulfuric acid solution is 1; the mass ratio of the hexamethylol melamine to the deionized water is 1:3-6;
s2, weighing the activated graphene oxide, adding the activated graphene oxide into N, N-dimethylformamide, and ultrasonically dispersing until the graphene oxide is uniform to obtain an activated graphene oxide solution; weighing dicyclohexylcarbodiimide, adding the dicyclohexylcarbodiimide into N, N-dimethylformamide, and stirring uniformly to obtain a dicyclohexylcarbodiimide solution; adding the hexamethylol melamine oxide into N, N-dimethylformamide, and stirring until the hexamethylol melamine oxide is dissolved to obtain a hexamethylol melamine oxide solution;
in the activated graphene oxide solution, the mass ratio of the activated graphene oxide to the N, N-dimethylformamide is 1:5-8; in the dicyclohexylcarbodiimide solution, the mass ratio of dicyclohexylcarbodiimide to N, N-dimethylformamide is 1:6-10; in the hexamethylol melamine oxide solution, the mass ratio of hexamethylol melamine oxide to N, N-dimethylformamide is 1:5-12;
s3, dropwise adding the dicyclohexylcarbodiimide solution into the activated graphene oxide solution, heating to 50-60 ℃, stirring for 0.2-0.5 h, introducing inert gas as protective gas, dropwise adding the hexamethylol melamine oxide solution, stirring for reaction for 8-16 h, cooling to room temperature, filtering to obtain a solid, washing with deionized water for three times, then washing with dichloromethane for three times, and drying under reduced pressure to obtain modified graphene oxide;
wherein the mass ratio of the dicyclohexylcarbodiimide solution to the activated graphene oxide solution to the hexamethylolmelamine oxide solution is 1:2-5.
Example 3
A hollow waterproof basement bottom plate with a combination of prevention and drainage comprises an upper end surface 1, a spacing layer 2 and a lower end surface 3 which are arranged in sequence from top to bottom; a connecting structure 4 is arranged inside the spacing layer 2; one end of the connecting structure 4 is connected with the upper end face 1, and the other end of the connecting structure is connected with the lower end face 3; the upper surface of the upper end face 1 is also coated with an impermeable layer.
And reinforcing ribs 5 are arranged at the joints of the connecting structure 4 and the upper end surface 1 and the lower end surface 3.
A drainage groove 6 is arranged above the upper end face 1, a drainage channel 7 is arranged above the lower end face 2, and water drained from the drainage groove 6 falls to the drainage channel 7 and then passes through the drainage channel 7 to be led to a water collecting well.
In another embodiment, the drainage channel 6 is connected to the drainage channel 7 by a pipe, and the water in the drainage channel 6 flows to the drainage channel 7 by a pipe.
The anti-seepage layer is formed by coating anti-seepage paint; the anti-seepage coating comprises the following components in parts by weight:
60 parts of super-hydrophobic polyurethane, 40 parts of inorganic powder, 10 parts of modified graphene oxide, 8 parts of a film-forming assistant, 5 parts of a dispersing agent, 0.5 part of a thickening agent, 2 parts of a flatting agent and 5 parts of a defoaming agent.
The inorganic powder is heavy calcium carbonate.
The film-forming aid is alcohol ester twelve.
The dispersing agent is sodium dodecyl sulfate.
The thickening agent is hydroxypropyl cellulose.
The leveling agent is a fluorine modified acrylic leveling agent.
The defoaming agent is a polyether defoaming agent.
The preparation method of the super-hydrophobic polyurethane comprises the following steps:
s1, weighing tert-butyl triphenyl phosphate, adding the tert-butyl triphenyl phosphate into absolute ethyl alcohol, stirring the mixture evenly, adding sodium xylene sulfonate, placing the mixture in a water bath at a temperature of between 80 and 90 ℃, stirring the mixture for 0.5 to 1 hour, dropwise adding 0.1mol/L hydrochloric acid until the pH value is between 3.5 and 4.5, and continuously stirring the mixture for 1 to 2 hours to obtain a mixed precursor solution;
wherein the mass ratio of the tert-butyl triphenyl phosphate to the sodium xylene sulfonate to the absolute ethyl alcohol is 1;
s2, heating the mixed precursor liquid to 70-80 ℃, dropwise adding isooctyl acrylate, adding dimethyl azodiisobutyrate and vinyl triethoxysilane after dropwise adding, stirring for reaction for 3-5 h, naturally cooling to room temperature, filtering to obtain a solid, washing with deionized water for three times, then washing with acetone for three times, drying under reduced pressure, and crushing into nanoparticles to obtain a modifier;
wherein the mass ratio of the isooctyl acrylate, the dimethyl azodiisobutyrate and the vinyltriethoxysilane to the mixed precursor liquid is 1: 0.1-0.2;
s3, adding the modifier into polyethylene glycol, ultrasonically dispersing until the modifier is uniform, sequentially adding toluene diisocyanate, 1,3-propylene glycol and dimethylcyclohexylamine under the protection of inert gas, heating to 70-80 ℃, and stirring for reacting for 1-4 hours to obtain a prepolymer; adding dimethylolpropionic acid into the prepolymer, continuously stirring and reacting for 1-4 h at 70-80 ℃, and then dropwise adding ethanolamine to adjust the liquid to be neutral, thereby obtaining the super-hydrophobic polyurethane;
wherein the mass ratio of the modifier to the polyethylene glycol to the toluene diisocyanate to the 1,3-propylene glycol to the dimethylcyclohexylamine is 1:8-14, and the mass ratio is 1:8-0.05-0.1; the mass ratio of the dimethylolpropionic acid to the prepolymer is 1:7-16.
The modified graphene oxide is prepared by reacting hexamethylol melamine oxide with activated graphene oxide.
The preparation method of the activated graphene oxide comprises the following steps:
s1, weighing concentrated sulfuric acid with the mass concentration of 98%, placing the concentrated sulfuric acid in an ice water bath, adding sodium sulfate, stirring until the sodium sulfate is dissolved, then adding nano graphite, stirring and reacting for 0.5-1 h, then adding potassium permanganate, and continuing to stir and react for 1-2 h; the temperature is increased to 35 to 50 ℃ for the first time, and the mixture is stirred and reacts for 2 to 5 hours; heating to 80-90 ℃ for the second time, adding hydrogen peroxide with the mass concentration of 10-20%, continuously stirring for 0.1-0.5 h, cooling to room temperature, and washing to be neutral by using deionized water to obtain graphene oxide;
wherein the mass ratio of the nano graphite, the sodium sulfate, the potassium permanganate, the hydrogen peroxide and the concentrated sulfuric acid is 1.05-0.1;
s2, weighing the graphene oxide, adding the graphene oxide into deionized water, and ultrasonically dispersing until the graphene oxide is uniform to obtain a graphene oxide solution; weighing aniline methyl triethoxysilane, adding the aniline methyl triethoxysilane into deionized water, and stirring uniformly to obtain aniline methyl triethoxysilane solution; dropwise adding the aniline methyl triethoxysilane solution into the graphene oxide solution, heating to 50-70 ℃, stirring for 5-10 h, cooling to room temperature, filtering to obtain a solid, washing with deionized water for three times, then washing with acetone for three times, and drying under reduced pressure to obtain activated graphene oxide;
in the graphene oxide solution, the mass ratio of the graphene oxide to the deionized water is 1:3-5; in the aniline methyl triethoxysilane solution, the mass ratio of aniline methyl triethoxysilane to deionized water is 1:6-8; the mass ratio of the aniline methyl triethoxysilane solution to the graphene oxide solution is 1:2-3.
The preparation method of the modified graphene oxide comprises the following steps:
s1, weighing potassium permanganate, and dissolving the potassium permanganate in a 0.1mol/L sulfuric acid solution to obtain a potassium permanganate acid solution; weighing hexamethylol melamine, adding the hexamethylol melamine into deionized water, stirring until the hexamethylol melamine is dissolved, placing the mixture in a water bath environment at 50-60 ℃, dropwise adding the potassium permanganate acid solution until the pH of the solution is = 1.0-2.0, reacting for 1-3 h, cooling to room temperature, adding dichloromethane for extraction, taking an organic phase, and performing rotary evaporation to remove a solvent to obtain hexamethylol melamine oxide;
wherein the mass ratio of potassium permanganate to sulfuric acid solution is 1; the mass ratio of the hexamethylol melamine to the deionized water is 1:3-6;
s2, weighing the activated graphene oxide, adding the activated graphene oxide into N, N-dimethylformamide, and ultrasonically dispersing until the graphene oxide is uniform to obtain an activated graphene oxide solution; weighing dicyclohexylcarbodiimide, adding the dicyclohexylcarbodiimide into N, N-dimethylformamide, and stirring uniformly to obtain a dicyclohexylcarbodiimide solution; adding the hexamethylol melamine oxide into N, N-dimethylformamide, and stirring until the hexamethylol melamine oxide is dissolved to obtain a hexamethylol melamine oxide solution;
in the activated graphene oxide solution, the mass ratio of the activated graphene oxide to the N, N-dimethylformamide is 1:5-8; in the dicyclohexylcarbodiimide solution, the mass ratio of dicyclohexylcarbodiimide to N, N-dimethylformamide is 1: 6-10; in the hexamethylol melamine oxide solution, the mass ratio of hexamethylol melamine oxide to N, N-dimethylformamide is 1: 5-12;
s3, dropwise adding the dicyclohexylcarbodiimide solution into the activated graphene oxide solution, heating to 50-60 ℃, stirring for 0.2-0.5 h, introducing inert gas as protective gas, dropwise adding the hexamethylol melamine oxide solution, stirring for reaction for 8-16 h, cooling to room temperature, filtering to obtain a solid, washing with deionized water for three times, then washing with dichloromethane for three times, and drying under reduced pressure to obtain modified graphene oxide;
wherein the mass ratio of the dicyclohexylcarbodiimide solution to the activated graphene oxide solution to the hexamethylol melamine oxide solution is 1: 2-5: 0.3-0.7.
Comparative example
A waterproof basement bottom plate, the surface of which is coated with an impermeable layer.
The anti-seepage layer is formed by coating anti-seepage paint; the anti-seepage coating comprises the following components in parts by weight:
45 parts of polyurethane resin, 32 parts of inorganic powder, 6 parts of graphene oxide, 5 parts of a film-forming assistant, 3 parts of a dispersing agent, 0.2 part of a thickening agent, 1 part of a leveling agent and 3 parts of a defoaming agent.
The inorganic powder is talcum powder.
The film-forming additive is alcohol ester twelve.
The dispersing agent is sodium dodecyl sulfate.
The thickening agent is hydroxyethyl cellulose.
The leveling agent is a modified acrylic leveling agent.
The defoaming agent is an organic silicon defoaming agent.
In order to more clearly illustrate the present invention, the barrier layers prepared in examples 1 to 3 according to the present invention and comparative example were tested for their properties, and the thickness of the coating layer was 3mm, and the results are shown in table 1:
TABLE 1 barrier layer Performance test results
| Example 1 | Example 2 | Example 3 | Comparative example | |
| Tensile strength/MPa | 32.5 | 28.4 | 31.1 | 18.2 |
| Contact angle with water/° c | 156.3 | 152.7 | 155.2 | 86.6 |
| Water droplet rolling angle/° | 6.2 | 8.1 | 6.5 | 28.9 |
| Limiting Oxygen Index (LOI)/% | ＞27 | ＞27 | ＞27 | 17 |
As can be seen from Table 1, the barrier layers prepared in examples 1 to 3 of the present invention are much higher in tensile strength than the comparative examples, and the contact angle with water > 150 °, the rolling angle < 10 ° are criteria for superhydrophobic, and the oxygen index greater than 27% is a flame retardant material.
Finally, it should be noted that the above embodiments are only used for illustrating the technical solutions of the present invention, and not for limiting the protection scope of the present invention, although the present invention is described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions can be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention.
Claims (6)
1. A hollow waterproof basement bottom plate with combination of prevention and drainage is characterized by comprising an upper end surface, a spacing layer and a lower end surface which are sequentially arranged from top to bottom; a connecting structure is arranged in the spacing layer, one end of the connecting structure is connected with the upper end face, and the other end of the connecting structure is connected with the lower end face; the upper surface of the upper end face is also coated with an impermeable layer;
the anti-seepage layer is formed by coating anti-seepage paint; the anti-seepage coating comprises the following components in parts by weight:
30-60 parts of super-hydrophobic polyurethane, 25-40 parts of inorganic powder, 2-10 parts of modified graphene oxide, 1-8 parts of film-forming additive, 1-5 parts of dispersant, 0.1-0.5 part of thickener, 0.5-2 parts of flatting agent and 1-5 parts of defoaming agent;
the preparation method of the super-hydrophobic polyurethane comprises the following steps:
s1, weighing tert-butyl triphenyl phosphate, adding the tert-butyl triphenyl phosphate into absolute ethyl alcohol, stirring the mixture evenly, adding sodium xylene sulfonate, placing the mixture in a water bath at a temperature of between 80 and 90 ℃, stirring the mixture for 0.5 to 1 hour, dropwise adding 0.1mol/L hydrochloric acid until the pH value is between 3.5 and 4.5, and continuously stirring the mixture for 1 to 2 hours to obtain a mixed precursor solution;
wherein the mass ratio of the tert-butyl triphenyl phosphate to the sodium xylene sulfonate to the absolute ethyl alcohol is 1.2-0.4;
s2, heating the mixed precursor liquid to 70-80 ℃, dropwise adding isooctyl acrylate, adding dimethyl azodiisobutyrate and vinyl triethoxysilane after dropwise adding, stirring for reaction for 3-5 h, naturally cooling to room temperature, filtering to obtain a solid, washing with deionized water for three times, then washing with acetone for three times, drying under reduced pressure, and crushing into nanoparticles to obtain a modifier;
wherein the mass ratio of the isooctyl acrylate, the dimethyl azodiisobutyrate and the vinyltriethoxysilane to the mixed precursor liquid is 1: 0.1-0.2;
s3, adding the modifier into polyethylene glycol, ultrasonically dispersing until the modifier is uniform, sequentially adding toluene diisocyanate, 1,3-propylene glycol and dimethylcyclohexylamine under the protection of inert gas, heating to 70-80 ℃, and stirring for reacting for 1-4 hours to obtain a prepolymer; adding dimethylolpropionic acid into the prepolymer, continuously stirring and reacting for 1-4 h at the temperature of 70-80 ℃, and then dropwise adding ethanolamine to adjust the liquid to be neutral, thereby obtaining the super-hydrophobic polyurethane;
wherein the mass ratio of the modifier to the polyethylene glycol to the toluene diisocyanate to the 1,3-propylene glycol to the dimethylcyclohexylamine is 1:8-14, and the mass ratio is 1:8-0.05-0.1; the mass ratio of the dimethylolpropionic acid to the prepolymer is 1:7-16.
2. The hollow waterproof basement bottom plate with combination of drainage and protection as claimed in claim 1, wherein the joints of the connecting structure and the upper end face and the lower end face are provided with reinforcing ribs.
3. The hollow drainage-prevention combined waterproof basement bottom plate according to claim 1, wherein a drainage groove is arranged above the upper end surface, a drainage channel is arranged above the lower end surface, and water drained from the drainage groove passes through the drainage channel to a water collecting well.
4. The hollow waterproof basement floor according to claim 1, wherein the modified graphene oxide is prepared by reacting hexamethylol melamine oxide with activated graphene oxide.
5. The hollow waterproof basement floor according to claim 4, wherein the activated graphene oxide is prepared by the following steps:
s1, weighing concentrated sulfuric acid with the mass concentration of 98%, placing the concentrated sulfuric acid in an ice water bath, adding sodium sulfate, stirring until the sodium sulfate is dissolved, adding nano graphite, stirring and reacting for 0.5-1 h, adding potassium permanganate, and continuing to stir and react for 1-2 h; the temperature is raised to 35 to 50 ℃ for the first time, and the mixture is stirred and reacts for 2 to 5 hours; heating to 80-90 ℃ for the second time, adding hydrogen peroxide with the mass concentration of 10-20%, continuously stirring for 0.1-0.5 h, cooling to room temperature, and washing to be neutral by using deionized water to obtain graphene oxide;
wherein the mass ratio of the nano graphite, the sodium sulfate, the potassium permanganate, the hydrogen peroxide and the concentrated sulfuric acid is 1.05-0.1;
s2, weighing the graphene oxide, adding the graphene oxide into deionized water, and ultrasonically dispersing until the graphene oxide is uniform to obtain a graphene oxide solution; weighing aniline methyl triethoxysilane, adding the aniline methyl triethoxysilane into deionized water, and stirring uniformly to obtain aniline methyl triethoxysilane solution; dropwise adding the aniline methyl triethoxysilane solution into the graphene oxide solution, heating to 50-70 ℃, stirring for 5-10 h, cooling to room temperature, filtering to obtain a solid, washing with deionized water for three times, then washing with acetone for three times, and drying under reduced pressure to obtain activated graphene oxide;
in the graphene oxide solution, the mass ratio of the graphene oxide to the deionized water is 1:3-5; in the aniline methyl triethoxysilane solution, the mass ratio of aniline methyl triethoxysilane to deionized water is 1:6-8; the mass ratio of the aniline methyl triethoxysilane solution to the graphene oxide solution is 1:2-3.
6. The hollow drainage-prevention combined waterproof basement bottom plate according to claim 4, wherein the preparation method of the modified graphene oxide comprises the following steps:
s1, weighing potassium permanganate, and dissolving the potassium permanganate in a 0.1mol/L sulfuric acid solution to obtain a potassium permanganate acidic solution; weighing hexamethylol melamine, adding the hexamethylol melamine into deionized water, stirring until the hexamethylol melamine is dissolved, placing the mixture in a water bath environment at 50-60 ℃, dropwise adding the potassium permanganate acid solution until the pH of the solution is = 1.0-2.0, reacting for 1-3 h, cooling to room temperature, adding dichloromethane for extraction, taking an organic phase, and performing rotary evaporation to remove a solvent to obtain hexamethylol melamine oxide;
wherein the mass ratio of potassium permanganate to sulfuric acid solution is 1; the mass ratio of the hexamethylol melamine to the deionized water is 1:3-6;
s2, weighing the activated graphene oxide, adding the activated graphene oxide into N, N-dimethylformamide, and ultrasonically dispersing until the graphene oxide is uniform to obtain an activated graphene oxide solution; weighing dicyclohexylcarbodiimide, adding the dicyclohexylcarbodiimide into N, N-dimethylformamide, and stirring uniformly to obtain a dicyclohexylcarbodiimide solution; adding the hexamethylol melamine oxide into N, N-dimethylformamide, and stirring until the hexamethylol melamine oxide is dissolved to obtain a hexamethylol melamine oxide solution;
in the activated graphene oxide solution, the mass ratio of the activated graphene oxide to the N, N-dimethylformamide is 1:5-8; in the dicyclohexylcarbodiimide solution, the mass ratio of dicyclohexylcarbodiimide to N, N-dimethylformamide is 1:6-10; in the hexamethylol melamine oxide solution, the mass ratio of the hexamethylol melamine oxide to the N, N-dimethylformamide is 1:5-12;
s3, dropwise adding the dicyclohexylcarbodiimide solution into the activated graphene oxide solution, heating to 50-60 ℃, stirring for 0.2-0.5 h, introducing inert gas as protective gas, dropwise adding the hexamethylol melamine oxide solution, stirring for 8-16 h, cooling to room temperature, filtering to obtain a solid, washing with deionized water for three times, then washing with dichloromethane for three times, and drying under reduced pressure to obtain modified graphene oxide;
wherein the mass ratio of the dicyclohexylcarbodiimide solution to the activated graphene oxide solution to the hexamethylolmelamine oxide solution is 1:2-5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010874153.4A CN112012240B (en) | 2020-08-26 | 2020-08-26 | Waterproof basement bottom plate that row combination is prevented to cavity |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010874153.4A CN112012240B (en) | 2020-08-26 | 2020-08-26 | Waterproof basement bottom plate that row combination is prevented to cavity |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112012240A CN112012240A (en) | 2020-12-01 |
| CN112012240B true CN112012240B (en) | 2022-12-09 |
Family
ID=73503705
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010874153.4A Active CN112012240B (en) | 2020-08-26 | 2020-08-26 | Waterproof basement bottom plate that row combination is prevented to cavity |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112012240B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113700044B (en) * | 2021-08-17 | 2022-09-09 | 青岛前盛业建设工程有限公司 | Water seepage prevention basement structure integrated with support base plate for building |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101328383A (en) * | 2008-07-17 | 2008-12-24 | 安徽大学 | Production method for liner gloves aqueous polyurethane coating connection material |
| CN105838236B (en) * | 2016-04-19 | 2018-05-11 | 滁州环球聚氨酯科技有限公司 | A kind of high-strength polyurethane waterproof coating material |
| KR101948662B1 (en) * | 2018-08-23 | 2019-05-21 | (주)덕신씨앤오 | Construction method for concrete floor structure in underground parking lot |
| CN111334177A (en) * | 2020-04-24 | 2020-06-26 | 杨建伟 | Graphene modified polyurethane super-hydrophobic anticorrosive material and preparation method thereof |
| CN111424729A (en) * | 2020-04-30 | 2020-07-17 | 浙江天苑景观建设有限公司 | Waterproof basement bottom plate that row combination is prevented to cavity |
-
2020
- 2020-08-26 CN CN202010874153.4A patent/CN112012240B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN112012240A (en) | 2020-12-01 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102775900B (en) | Water curing asphalt polyurethane composite waterproof coating and preparation method thereof | |
| CN102492085A (en) | Organosilicon-modified styrene-acrylic architectural waterproof latex and preparation method thereof | |
| CN101712836B (en) | Mildewproof flame-retardant tunnel decoration paint, preparation method and application thereof | |
| CN106365556A (en) | Anti-permeability anti-corrosion concrete | |
| CN112012240B (en) | Waterproof basement bottom plate that row combination is prevented to cavity | |
| CN109705700A (en) | A kind of dual cure wet-heat resisting heavy antisepsis ceramic coating | |
| CN104356915B (en) | A kind of fire-retardant preparation method with water proofing property aqueous polyurethane coating | |
| CN102604015B (en) | Preparation method of waterborne polyurethane emulsion modified by methyl esterification tung oil and product of waterborne polyurethane emulsion | |
| CN104629607A (en) | Environmental-friendly flame-retardant waterproof aqueous polyurethane coating and preparation method thereof | |
| CN104592846A (en) | High-strength waterproof flame-retardant seal coating and preparation method thereof | |
| CN103864340A (en) | Water-repellent admixture for mortar and concrete | |
| CN107083088A (en) | A kind of organic fluorine silicon hybrid inorganic silicate coating and its preparation method and application | |
| CN112708316A (en) | Water-based indoor intumescent fire-retardant coating for steel structure and preparation method thereof | |
| CN103666235B (en) | A kind of polyurethane water-proof anticorrosive paint and preparation method thereof | |
| CN105348784A (en) | High tenacity acidproof high temperature resistant polyurethane glass flake daub and preparing method thereof | |
| CN109181481A (en) | Pipeline corrosion protection epoxy coating and its production method | |
| CN105062249A (en) | Water-based fluorocarbon-modified elastic architectural external wall paint and preparation method thereof | |
| CN1317531A (en) | Water-proof agent of mortar and its preparing process | |
| CN109233608B (en) | Special polyurethane waterproof coating for underground pipe gallery and production process thereof | |
| CN105713474B (en) | A kind of organic imvite modified elastic coating for being used as concrete surface protection and preparation method thereof | |
| CN104830192A (en) | High-weatherability and high-toughness aqueous paint | |
| CN112048165A (en) | Environment-friendly waterproof material and preparation method thereof | |
| CN107057424A (en) | A kind of high fire-retardance sterilization waterproof coating and preparation method | |
| CN103087623A (en) | Weather-proof terrace paint as well as preparation method thereof | |
| CN113999583A (en) | Ultrathin flame-retardant water-based paint for manufacturing tank and preparation method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |