CN110317512B - Tunnel engineering spray film waterproof material and preparation method thereof - Google Patents

Tunnel engineering spray film waterproof material and preparation method thereof Download PDF

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CN110317512B
CN110317512B CN201910516831.7A CN201910516831A CN110317512B CN 110317512 B CN110317512 B CN 110317512B CN 201910516831 A CN201910516831 A CN 201910516831A CN 110317512 B CN110317512 B CN 110317512B
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aqueous solution
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waterproof material
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CN110317512A (en
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王虎群
郭嘉
刘国庆
叶茂龙
曹志芳
王新宇
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Beijing Oriental Yuhong Waterproof Technology Co Ltd
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    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08FMACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F220/00Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical or a salt, anhydride ester, amide, imide or nitrile thereof
    • C08F220/02Monocarboxylic acids having less than ten carbon atoms; Derivatives thereof
    • C08F220/10Esters
    • C08F220/20Esters of polyhydric alcohols or phenols, e.g. 2-hydroxyethyl (meth)acrylate or glycerol mono-(meth)acrylate
    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09DCOATING 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
    • C09D133/00Coating 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
    • C09D133/04Homopolymers or copolymers of esters
    • C09D133/14Homopolymers or copolymers of esters of esters containing halogen, nitrogen, sulfur or oxygen atoms in addition to the carboxy oxygen
    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09DCOATING 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
    • C09D7/00Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
    • C09D7/40Additives
    • C09D7/60Additives non-macromolecular
    • C09D7/61Additives non-macromolecular inorganic
    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09DCOATING 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
    • C09D7/00Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
    • C09D7/40Additives
    • C09D7/60Additives non-macromolecular
    • C09D7/63Additives non-macromolecular organic
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08KUse of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00Use of inorganic substances as compounding ingredients
    • C08K3/18Oxygen-containing compounds, e.g. metal carbonyls
    • C08K3/24Acids; Salts thereof
    • C08K3/26Carbonates; Bicarbonates
    • C08K2003/265Calcium, strontium or barium carbonate
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08KUse of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K2201/00Specific properties of additives
    • C08K2201/011Nanostructured additives
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08KUse of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K2201/00Specific properties of additives
    • C08K2201/014Additives containing two or more different additives of the same subgroup in C08K

Abstract

The invention discloses a tunnel engineering spray film waterproof material and a preparation method thereof, wherein the spray film waterproof material comprises a component A and a component B; the component A comprises the following components in parts by weight: 30-60 parts of modified acrylic acid salt aqueous solution, 30-60 parts of filler, 0.1-1 part of reducing agent and 1-10 parts of rheological additive; the component B comprises the following components in parts by weight: 0.1-1 part of oxidant. The film-spraying waterproof material has high strength, high adhesion and flexibility in the absence of water, and has the advantages of flame retardance, high water resistance, simple production process, easy control and environmental protection.

Description

Tunnel engineering spray film waterproof material and preparation method thereof
Technical Field
The invention belongs to the technical field of building waterproofing, and particularly relates to a tunnel engineering spray film waterproof material and a preparation method thereof.
Background
The waterproof material is used for the building envelope to prevent the penetration of rainwater, snow water and underground water; to prevent the erosion of moisture, steam and other harmful gases and liquids in the air; the partition structure is to prevent the infiltration of the water supply and drainage. These materials that resist permeation, leakage and erosion are collectively referred to.
The film-spraying waterproof material disclosed in the current domestic market and the patent mainly comprises an acrylate spraying waterproof material, the acrylate spraying waterproof material is a novel waterproof material applied to subways, urban underground comprehensive pipe galleries, tunnels and underground engineering, the material is uniform in quality, has excellent performances such as disposable integral film forming, self-healing when meeting water, environmental protection, flame retardance and the like, and is intended to solve the problem of water leakage caused by the use of the traditional waterproof material for underground engineering.
The acrylate film-spraying waterproof material consists of three parts, namely a main material (a basic component), an oxidant and a reducing agent. Mixing the three parts by a spraying mode, polymerizing and molding the magnesium acrylate in the main material according to free radical polymerization, and forming an ionic crosslinking structure by metal magnesium ions in the magnesium acrylate so that the magnesium acrylate forms a structural material at the moment of film spraying polymerization. However, the acrylate spray film material can only play a good role in the presence of water, and due to the principle of water absorption expansion, the mechanical property is reduced after water absorption saturation, and the acrylate spray film material can be hardened after drying, once a tunnel sinks or slides, the tunnel can crack to lose the waterproof effect, and a great defect exists, so that a new modified acrylate spray film waterproof material is needed to be provided.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provide a novel modified acrylate spray film waterproof material, so that the prepared spray film waterproof material has better water resistance, high adhesion and crack resistance, and the production process is simple and easy to control.
In order to achieve the above object, an aspect of the present invention provides a waterproof material for a tunnel engineering spray film, which includes a component a and a component B;
the component A comprises the following components in parts by weight: 30-60 parts of modified acrylic acid salt aqueous solution, 30-60 parts of filler, 0.1-1 part of reducing agent and 1-10 parts of rheological additive;
the component B comprises the following components in parts by weight: 0.1-1 part of oxidant.
The invention also provides a preparation method of the tunnel engineering spray film waterproof material, which comprises the following steps:
uniformly mixing a modified acrylate aqueous solution, a filler, a reducing agent and a rheological additive to obtain the component A;
and weighing a metered oxidant to obtain the component B.
The technical scheme of the invention has the following beneficial effects:
(1) according to the invention, hydroxybutyl acrylate, butyl acrylate, hydroxyethyl methacrylate and 1, 4-butadiene modified components are adopted for pre-polymerization, and a cross-linking agent is introduced to form a pre-polymer with a cross-linking structure to modify acrylate, and the addition of the acrylate modified by the pre-polymer improves the strength of the film-spraying waterproof material, and the side chain structure is introduced to form a flexible film, so that the water resistance of the film-spraying waterproof material is improved, and the high and low temperature resistance after film formation is further improved.
(2) According to the invention, the acrylate is modified by adopting the hydroxybutyl acrylate and the hydroxyethyl methacrylate, so that the film-spraying waterproof material has higher flexibility while the film-spraying waterproof material is ensured to meet the use strength requirement, and the risk of later dehydration hardening is solved.
(3) The invention adopts a special prepolymerization process to prepare the modified acrylate aqueous solution, solves the problem of instability of the modified acrylate aqueous solution through the prepolymerization process, and improves the storage stability of the modified acrylate aqueous solution.
(4) The allyl alcohol group is introduced into the polymer chain of the spray film waterproof material, so that the spray film waterproof material has good adhesion, and the adhesion strength with the surface of concrete reaches more than 1.5 MPa.
(5) The reducing agent has good compatibility, can exist in the component A for a long time, and solves the problem that the reducing agent is added only when in use in the prior art.
(6) The spray film waterproof material has high water resistance; the production process is simple and easy to control, green and environment-friendly, and has good storage stability.
Additional features and advantages of the invention will be set forth in the detailed description which follows.
Detailed Description
Preferred embodiments of the present invention will be described in more detail below. While the following describes preferred embodiments of the present invention, it should be understood that the present invention may be embodied in various forms and should not be limited by the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art.
One aspect of the present invention provides a spray film waterproof material, which comprises a component a and a component B;
the component A comprises the following components in parts by weight: 30-60 parts of modified acrylic acid salt aqueous solution, 30-60 parts of filler, 0.1-1 part of reducing agent and 1-10 parts of rheological additive;
the component B comprises the following components in parts by weight: 0.1-1 part of oxidant.
The film-spraying waterproof material has high strength, high adhesion and flexibility in the absence of water, and has the advantages of flame retardance, high water resistance, simple production process, easy control and environmental protection.
According to the present invention, preferably, the aqueous solution of a modified acrylate is prepared by:
mixing and self-emulsifying hydroxybutyl acrylate, butyl acrylate, hydroxyethyl methacrylate, 1,4 butadiene and water to obtain a self-emulsifying mixture;
heating, dropwise adding an oxidant aqueous solution into the self-emulsifying mixture, simultaneously adding a cross-linking agent, carrying out prepolymerization reaction, dropwise adding the oxidant aqueous solution until the reaction solution is clear, and stopping the prepolymerization reaction to obtain a prepolymer aqueous solution;
and cooling, and uniformly mixing the prepolymer aqueous solution, the acrylate aqueous solution and the alkenyl alcohol to obtain the modified acrylate aqueous solution.
According to the invention, preferably, the hydroxy butyl acrylate accounts for 30-50 parts, the butyl acrylate accounts for 1-10 parts, the hydroxyethyl methacrylate accounts for 5-40 parts, the 1, 4-butadiene accounts for 1-2 parts, the water accounts for 5-20 parts, the cross-linking agent accounts for 1-10 parts, the aqueous solution of the acrylate accounts for 10-50 parts, and the alkenyl alcohol accounts for 1-10 parts;
the mass concentration of the oxidant aqueous solution is 10-20%; the solid content of the acrylate aqueous solution is 40-50%;
the aqueous acrylate solution is preferably an aqueous magnesium acrylate solution.
In the present invention, the hydroxyethyl methacrylate is preferably 10 to 30 parts by weight.
In the invention, the mass concentration of the oxidant aqueous solution is preferably 10-20%, and when the prepolymerization reaction is finished, the dosage of the oxidant introduced by the oxidant aqueous solution dripped in the whole reaction system is preferably 0.1-1 part by weight; the oxidizing agent used in the aqueous oxidizing agent solution is preferably at least one of sodium persulfate, ammonium persulfate, potassium persulfate, and dicumyl peroxide.
According to the invention, preferably, the temperature is raised to 70-80 ℃ and the temperature is lowered to 30-45 ℃.
According to the invention, a modified acrylate aqueous solution is added, and the water resistance and the adhesion of the film-spraying waterproof material can be improved by adopting a prepolymerization process and adding vinyl alcohol.
According to the present invention, preferably, the crosslinking agent is at least one of trimethylolpropane trimethacrylate, diacetone acrylamide, cyclotrimethylolpropane formal acrylate and triethylene glycol dimethacrylate.
The vinyl alcohol is at least one of allyl alcohol, butenol, isopentenyl alcohol and butadienol.
According to the present invention, preferably, the filler is at least one of quartz powder, heavy calcium carbonate, silica powder and wollastonite.
According to the present invention, preferably, the oxidizing agent is at least one of sodium persulfate, ammonium persulfate, potassium persulfate, and dicumyl peroxide.
According to the present invention, preferably, the reducing agent is at least one of cement, sodium bisulfite, tartaric acid, oxalic acid, and ascorbic acid.
According to the present invention, preferably, the rheological additive is at least one of nano calcium carbonate, white carbon black, bentonite and montmorillonite.
Another aspect of the present invention provides a method for preparing the above-mentioned spray film waterproof material, which comprises:
uniformly mixing a modified acrylate aqueous solution, a filler, a reducing agent and a rheological additive to obtain the component A;
and weighing a metered oxidant to obtain the component B.
The invention is further illustrated by the following examples:
in the following examples and comparative examples, the aqueous magnesium acrylate solution used had a solids content of 45%.
Example 1
Uniformly mixing 40 parts of modified acrylate aqueous solution, 35 parts of quartz powder, 22 parts of triple superphosphate and 3 parts of nano calcium carbonate in parts by weight, adding 0.3 part of oxalic acid, and uniformly mixing to obtain a component A; the component B is 0.3 part of sodium persulfate by weight.
Wherein, by weight, 40 parts of hydroxybutyl acrylate, 1 part of butyl acrylate, 25 parts of hydroxyethyl methacrylate, 2 parts of 1,4 butadiene and 10 parts of water are mixed and self-emulsified to obtain a self-emulsified mixture; then heating to 80 ℃, dropwise adding an ammonium persulfate aqueous solution into the self-emulsifying mixture, simultaneously adding 3 parts of diacetone acrylamide to carry out a prepolymerization reaction, and dropwise adding an ammonium persulfate aqueous solution until a reaction solution is clear, and stopping the prepolymerization reaction; and cooling to 35 ℃, adding 20 parts of magnesium acrylate aqueous solution and 3 parts of isopentenol during stirring, and mixing for 1 hour to prepare the modified acrylate aqueous solution. Wherein the mass concentration of the ammonium persulfate aqueous solution is 12%.
Example 2
Uniformly mixing 38 parts of modified acrylate aqueous solution, 40 parts of silicon micropowder, 20 parts of wollastonite and 2 parts of bentonite in parts by weight, adding 0.5 part of tartaric acid, and uniformly mixing to obtain a component A; and the component B comprises 0.4 part of ammonium persulfate in parts by weight.
Wherein, by weight, 38 parts of hydroxybutyl acrylate, 2 parts of butyl acrylate, 20 parts of hydroxyethyl methacrylate, 1 part of 1,4 butadiene and 11 parts of water are mixed and self-emulsified to obtain a self-emulsified mixture; then heating to 80 ℃, dropwise adding a 16 mass percent sodium persulfate aqueous solution into the self-emulsifying mixture, simultaneously adding 2 parts of trimethylolpropane trimethacrylate to perform prepolymerization, and dropwise adding a sodium persulfate aqueous solution until the reaction solution is clear to stop the prepolymerization; cooling to 30 ℃, adding 25 parts of magnesium acrylate aqueous solution and 5 parts of allyl alcohol during stirring, and mixing for 1h to prepare the modified acrylate aqueous solution.
Example 3
Uniformly mixing 30 parts by weight of modified acrylate aqueous solution, 40 parts by weight of quartz powder, 17 parts by weight of triple superphosphate and 3 parts by weight of white carbon black, adding 0.2 part by weight of sodium bisulfite, and uniformly mixing to obtain a component A; the component B is 0.8 part of dicumyl peroxide by weight.
Wherein, by weight, 36 parts of hydroxybutyl acrylate, 4 parts of butyl acrylate, 24 parts of hydroxyethyl methacrylate, 2 parts of 1,4 butadiene and 13 parts of water are mixed and self-emulsified to obtain a self-emulsified mixture; then heating to 80 ℃, dropwise adding 15% sodium persulfate aqueous solution into the self-emulsifying mixture, simultaneously adding 3 parts of diacetone acrylamide to perform prepolymerization reaction, and dropwise adding the sodium persulfate aqueous solution until the reaction solution is clear, and stopping the prepolymerization reaction; and cooling to 45 ℃, adding 28 parts of magnesium acrylate aqueous solution and 2 parts of butadiene alcohol during stirring, and mixing for 1 hour to prepare the modified acrylate aqueous solution.
Example 4
Uniformly mixing 36 parts by weight of modified acrylate aqueous solution, 40 parts by weight of lime silicate, 19 parts by weight of talcum powder and 3 parts by weight of montmorillonite, and then uniformly mixing 1 part by weight of cement to obtain a component A; the component B is 0.3 part of sodium persulfate by weight.
Wherein, according to the parts by weight, 42 parts of hydroxybutyl acrylate, 2 parts of butyl acrylate, 22 parts of hydroxyethyl methacrylate, 1 part of 1,4 butadiene and 14 parts of water are mixed and self-emulsified to obtain a self-emulsified mixture; then heating to 70 ℃, dropwise adding 14% sodium persulfate aqueous solution into the self-emulsifying mixture, simultaneously adding 3 parts of triethylene glycol dimethacrylate to perform prepolymerization reaction, and dropwise adding the sodium persulfate aqueous solution until the reaction solution is clear, and stopping the prepolymerization reaction; cooling to 45 ℃, adding 15 parts of magnesium acrylate aqueous solution and 5 parts of isopentenol during stirring, and mixing for 1h to prepare the modified acrylate aqueous solution.
Example 5
Uniformly mixing 43 parts by weight of modified acrylate aqueous solution, 39 parts by weight of quartz powder, 15 parts by weight of triple superphosphate and 5 parts by weight of white carbon black, then adding 1 part by weight of cement, and uniformly mixing to obtain a component A; the component B is 0.3 part of dicumyl peroxide by weight.
Wherein, by weight, 35 parts of hydroxybutyl acrylate, 5 parts of butyl acrylate, 26 parts of hydroxyethyl methacrylate, 2 parts of 1,4 butadiene and 9 parts of water are mixed and self-emulsified to obtain a self-emulsified mixture; then heating to 80 ℃, dropwise adding 18% sodium persulfate aqueous solution into the self-emulsifying mixture, simultaneously adding 3 parts of diacetone acrylamide to perform prepolymerization reaction, and dropwise adding the sodium persulfate aqueous solution until the reaction solution is clear, and stopping the prepolymerization reaction; cooling to 45 deg.C, adding 28 parts of magnesium acrylate aqueous solution and 3 parts of butenol while stirring, and mixing for 1h to obtain modified acrylate aqueous solution.
Example 6
Uniformly mixing 45 parts of modified acrylate aqueous solution, 35 parts of heavy calcium carbonate, 14 parts of silica micropowder and 4 parts of nano calcium carbonate in parts by weight, adding 0.5 part of tartaric acid, and uniformly mixing to obtain a component A; the component B is 0.3 part of potassium persulfate by weight.
Wherein, by weight, 36 parts of hydroxybutyl acrylate, 4 parts of butyl acrylate, 24 parts of hydroxyethyl methacrylate, 2 parts of 1,4 butadiene and 15 parts of water are mixed and self-emulsified to obtain a self-emulsified mixture; then heating to 80 ℃, dropwise adding 11% sodium persulfate aqueous solution into the self-emulsifying mixture, simultaneously adding 3 parts of cyclotrimethylolpropane methylal acrylate for prepolymerization reaction, dropwise adding sodium persulfate aqueous solution until the reaction solution is clear, and stopping the prepolymerization reaction; and cooling to 45 ℃, adding 18 parts of magnesium acrylate aqueous solution and 5 parts of allyl alcohol during stirring, and mixing for 1 hour to prepare the modified acrylate aqueous solution.
Comparative example 1
This comparative example is different from example 3 only in that 2 parts of butadienol is not added when preparing the modified acrylate aqueous solution, and the other is the same as example 3.
Comparative example 2
This comparative example is different from example 3 only in that, in the preparation of the modified acrylic acid salt aqueous solution, hydroxyethyl methacrylate was not added and the amount of hydroxybutyl acrylate was adjusted to 60 parts, and the other steps were the same as in example 3.
Comparative example 3
This comparative example is different from example 3 only in that, in the preparation of the modified acrylate aqueous solution, hydroxybutyl acrylate was not added and the amount of hydroxyethyl methacrylate was adjusted to 60 parts, and the other steps were the same as in example 3.
Test example 1
Carrying out mechanical property test by referring to the acrylate spray film performance test method of a product in part 1 spray coating of acrylate on the QCR517.1-2017 railway engineering spray film waterproof material; the thickness of the tested material is 3.0mm, and the specific test result is shown in table 1.
Table 1 mechanical properties experimental data
Figure BDA0002095319950000081
Figure BDA0002095319950000091
Test example 2
The water resistance of the modified acrylate spray film is evaluated according to GBT 16777-.
TABLE 2 Water resistance test data
Figure BDA0002095319950000092
Test example 3
The technical index standard is revised by referring to the indexes of II type products in GBT 23445-2009 Polymer Cement waterproof coating, the coating prepared in example 4 is selected, the thickness of the coating is comprehensively tested according to 1.5mm of the standard specification, and the specific test result is shown in Table 3.
Table 3 example 4 full assay data
Figure BDA0002095319950000101
Test example 4
The acrylate spray film anti-dry cracking performance is evaluated, wherein a bridge crack performance test is carried out according to the JCT 2415-2017 waterproof coating film used under a ceramic tile bonding layer standard, the elongation at break and the impact resistance are tested according to the test method in the QCR517.1-2017 railway engineering spray film waterproof material part 1 spray acrylate standard, and the specific test result is shown in the table 4.
TABLE 4 Experimental data for resistance to later-stage cracking
Figure BDA0002095319950000102
Figure BDA0002095319950000111
Having described embodiments of the present invention, the foregoing description is intended to be exemplary, not exhaustive, and not limited to the embodiments disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments.

Claims (10)

1. The tunnel engineering spray film waterproof material is characterized by comprising a component A and a component B;
the component A comprises the following components in parts by weight: 30-60 parts of modified acrylic acid salt aqueous solution, 30-60 parts of filler, 0.1-1 part of reducing agent and 1-10 parts of rheological additive;
the component B comprises the following components in parts by weight: 0.1-1 part of an oxidant;
the modified acrylate aqueous solution is prepared by the following method:
mixing and self-emulsifying hydroxybutyl acrylate, butyl acrylate, hydroxyethyl methacrylate, 1,4 butadiene and water to obtain a self-emulsifying mixture;
heating, dropwise adding an oxidant aqueous solution into the self-emulsifying mixture, simultaneously adding a cross-linking agent, carrying out prepolymerization reaction, dropwise adding the oxidant aqueous solution until the reaction solution is clear, and stopping the prepolymerization reaction to obtain a prepolymer aqueous solution;
and cooling, and uniformly mixing the prepolymer aqueous solution, the acrylate aqueous solution and the alkenyl alcohol to obtain the modified acrylate aqueous solution.
2. The tunnel engineering spray film waterproof material of claim 1, wherein the hydroxyl butyl acrylate accounts for 30-50 parts, the butyl acrylate accounts for 1-10 parts, the hydroxyethyl methacrylate accounts for 5-40 parts, the 1, 4-butadiene accounts for 1-2 parts, the water accounts for 5-20 parts, the cross-linking agent accounts for 1-10 parts, the aqueous acrylate solution accounts for 10-50 parts, and the alkenyl alcohol accounts for 1-10 parts;
the mass concentration of the oxidant aqueous solution is 10-20%; the solid content of the acrylate aqueous solution is 40-50%.
3. The tunnel engineering spray film waterproof material according to claim 2, wherein the aqueous acrylate solution is an aqueous magnesium acrylate solution.
4. The tunnel engineering spray film waterproof material of claim 1, wherein the temperature is raised to 70-80 ℃ and the temperature is lowered to 30-45 ℃.
5. The waterproof material for the spray film in the tunnel engineering according to claim 1, wherein the cross-linking agent is at least one of trimethylolpropane trimethacrylate, diacetone acrylamide, cyclotrimethylolpropane formal acrylate and triethylene glycol dimethacrylate;
the vinyl alcohol is at least one of allyl alcohol, butenol, isopentenyl alcohol and butadienol.
6. The waterproof material for the sprayed film in the tunnel engineering according to claim 1, wherein the filler is at least one of quartz powder, heavy calcium carbonate, silica micropowder and wollastonite.
7. The waterproofing membrane according to claim 1, wherein the oxidizing agent is at least one of sodium persulfate, ammonium persulfate, potassium persulfate, and dicumyl peroxide.
8. The waterproofing material according to claim 1, wherein the reducing agent is at least one of cement, sodium bisulfite, tartaric acid, oxalic acid, and ascorbic acid.
9. The tunnel engineering spray film waterproof material of claim 1, wherein the rheological additive is at least one of nano calcium carbonate, white carbon black, bentonite and montmorillonite.
10. The preparation method of the tunnel engineering spray film waterproof material according to any one of claims 1 to 9, characterized by comprising the following steps:
uniformly mixing a modified acrylate aqueous solution, a filler, a reducing agent and a rheological additive to obtain the component A;
and weighing a metered oxidant to obtain the component B.
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CN108587266A (en) * 2017-12-29 2018-09-28 北京东方雨虹防水技术股份有限公司 Modified propylene hydrochlorate spray film water-proofing material and preparation method thereof

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CN102140149A (en) * 2010-12-30 2011-08-03 长兴化学工业(中国)有限公司 Aqueous emulsion composition, and emulsion resin prepared by using same and use thereof
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