CN104177554A - Environment-friendly acrylate grouting material as well as preparation method and application thereof - Google Patents
Environment-friendly acrylate grouting material as well as preparation method and application thereof Download PDFInfo
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- CN104177554A CN104177554A CN201410388009.4A CN201410388009A CN104177554A CN 104177554 A CN104177554 A CN 104177554A CN 201410388009 A CN201410388009 A CN 201410388009A CN 104177554 A CN104177554 A CN 104177554A
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Abstract
The invention provides an environment-friendly acrylate grouting material, as well as a preparation method and an application thereof. The material mainly comprises the following components in parts by weight: a main agent, namely 100 parts of methacrylic acid-beta-hydroxyethyl ester, a crosslinking agent which includes 5-30 parts of hydrophilic compound containing a diallyl ether functional group, 1-5 parts of initiator and 0.5-3 parts of accelerant, 0-20 parts of an adjuvant, and a solvent, namely 2-1,000 parts of water. The method comprises the following steps: firstly, mixing the main agent, the crosslinking agent, the accelerant, the adjuvant and a part of solvent evenly to form a solution A in use; then dissolving the initiator into a residual solvent to form a solution B; and finally mixing the solution A with the solution B evenly, and solidifying at room temperature. According to the grouting material disclosed by the invention, the technical problem that the existing organic grouting material cannot be grouted once after being mixed with an inorganic grouting material, and the technical problem that the existing grouting material has poor durability, low strength, poor water solubility, low water expansion rate and high toxicity are solved.
Description
Technical field
The present invention relates to the injection material that antiseepage in a kind of geotechnical engineering, leak stopping are used, be specifically related to a kind of foundation that is applicable to and process sealing that project seepage controlling and reinforcing, movement joint leak and environmentally-friendly acrylic ester injection material of reinforcing and preparation method thereof and application.
Background technology
At foundation, process in project seepage controlling and consolidation process, often adopt acrylate injection material and modified epoxy injection material to carry out antiseepage and consolidation process as injection material.But organic injection material price is higher, causes construction cost high.For this reason, unit in charge of construction wishes organic injection material and conventional inorganic grouting material to be in the milk as grout, clay cement grout, bentonite cement slurry etc. are mixed, with part inorganic grouting material, replace organic chemistry injection material to be in the milk, can significantly reduce construction material cost, improve the weather resistance of material, simplify construction technology.But current organic injection material can not mix mutually with inorganic grouting material, together carry out chemical grouting, for example, when acrylate injection material mixes with cement grout, acrylate injection material is met the silicate ion in cement, produce rapidly precipitation, lose concrete castability; Polyurethane grouting material is met the water in grout, and foaming, loses concrete castability rapidly; Modified epoxy injection material is met the water in grout, the situation such as may occur not solidifying.
Meanwhile, it is also the large difficult point of constructing at present that the movement joint in underground space structure leaks, and existing organic injection material can not effectively solve the seepy question of movement joint.Acrylate injection material gelation time is difficult to regulation and control, affected by the factors such as temperature, amount of initiator, impurity larger, and gelation time is difficult to control accurately; The solid content of acrylate grout is limited, can not surpass 40%, causes its gel intensity low, similar jelly colloid, and after water-swelling, gel intensity is very low, is highly brittle, and easily from crack, extrudes, and is not suitable for the grouting patching of movement joint.Polyurethane grouting material is divided into two kinds of oil soluble and water-soluble injection materials, for the polyurethane grouting material in crack, concrete crack, is mainly aqurous ployurethane injection material.This material is met water foaming, enter in the micropore in crack, but after foaming, foams is very soft after foaming, causes foam Hole more and be interconnected.Engineering practice proves: adopt polyurethane grouting material to carry out after sealing, general effective duration is about half a year, there will be again the situation of leaking after half a year.Therefore, Shenzhen Metro, Guangzhou Underground have stipulated to adopt polyurethane grouting material to carry out sealing, antiseepage processing to distress in concrete.Modified epoxy injection material is the injection material that a kind of viscosity is low, cured strength is high, is widely used in the improvement of various dry concrete diseases.But because modified epoxy injection material is oiliness, and the interface of the movement joint leaking is flooded profit, and profit two-phase can not be bonding, causes modified epoxy injection material limited to the repairing effect of the movement joint that leaks, and treatment effect is bad.
Summary of the invention
Technical problem solved by the invention is to provide a kind of environmentally-friendly acrylic ester injection material and preparation method thereof and application, to solve existing organic injection material, can not be in the milk with inorganic grouting material mixing, and the weather resistance that existing injection material exists is bad, intensity is low, water-soluble bad, water-swellable rate is not high, the technical barrier that toxicity is high.
Technical problem solved by the invention realizes by the following technical solutions:
An environmentally-friendly acrylic ester injection material, is mainly comprised of following component and proportioning:
Host: 100 parts of methacrylic acid-beta-hydroxy ethyl esters
Linking agent: 5～30 parts of the hydrophilic compounds of diallyl containing ether functional group
1～5 part of initiator
0.5～3 part of promotor
Solvent: 2～1000 parts, water
0～20 part of auxiliary agent.
In above-mentioned environmentally-friendly acrylic ester injection material, preferred, described linking agent is polyoxyethylene glycol diallyl ether.
In above-mentioned environmentally-friendly acrylic ester injection material, preferred, described linking agent is the mixture of polyoxyethylene glycol diallyl ether and ethoxyquin bisphenol a diallyl ether 100: 1 in mass ratio～50.
In above-mentioned environmentally-friendly acrylic ester injection material, preferred, in described polyoxyethylene glycol diallyl ether, the molecular weight of polyoxyethylene glycol is between 40～2000.
In above-mentioned environmentally-friendly acrylic ester injection material, preferred, in described ethoxyquin bisphenol a diallyl ether, the number of ethoxyquin functional group is 5～15.
Wherein polyoxyethylene glycol diallyl ether is non-toxic material, dissolves each other with water, simultaneously with two allyl functionality, as linking agent, impels methacrylic acid-beta-hydroxy ethyl ester to form water-fast cubic network shape gel; In molecule, contain longer flexible chain simultaneously, can improve toughness and the elasticity of injection material gel; Ethoxyquin bisphenol a diallyl ether, except having the feature performance benefit of polyoxyethylene glycol diallyl ether, also contains dihydroxyphenyl propane functional group in molecular structure, have good weather-proof, erosion resistance, cementability, improves the rigidity of injection material gel simultaneously.
In above-mentioned environmentally-friendly acrylic ester injection material, preferably, described initiator is one or more mixture in Potassium Persulphate, ammonium persulphate, Sodium Persulfate, benzoyl peroxide, tertbutyl peroxide, methylethyl ketone peroxide or di-cyclohexylperoxy dicarbonate.
In above-mentioned environmentally-friendly acrylic ester injection material, preferably, described promotor is one or more mixture in sodium bicarbonate, trolamine, tin protochloride, Sulfothiorine, sodium hyposulfate, ferrous sulfate, cobalt naphthenate or β-dimethylaminopropionitrile.
In above-mentioned environmentally-friendly acrylic ester injection material, preferably, described auxiliary agent is one or more mixture in sodium acrylate, calcium acrylate, Magnesium Acrylate Prepared, the Tripotassium iron hexacyanide, and the object adding is the gel time that further improves the water swelling of slurries and regulate slurries.
As a total technical conceive, the present invention also provides a kind of preparation method of above-mentioned environmentally-friendly acrylic ester injection material: first host, linking agent, promotor are mixed, wherein also can add auxiliary agent or solvent, form first liquid; Then by initiator and the even rear second liquid that forms of solvent, during use, first liquid, second liquid are mixed to form to environmentally-friendly acrylic ester grouting slurries, final crosslinking curing.
As a total technical conceive, the present invention also provides a kind of application of above-mentioned environmentally-friendly acrylic ester injection material: the water-solid ratio that adds equal-volume ratio in described environmentally-friendly acrylic ester injection material is 0.5～5:1 grout, clay cement grout or bentonite cement slurries, can form organic-inorganic grouting material after mixing and stirring.
Beneficial effect of the present invention is:
1) adopting the host monomer dissolving each other with water, is linking agent with the hydrophilic compounds of dual-allyl ether functional group, take water as solvent, and starting material can be dissolved in large water gaging and wrap up a large amount of free water and solidify.
2) after slurries crosslinking curing, the main chain in cross-linked network is C-C, and cross linked chain is C-C and ehter bond, has good hydrolytic resistance and ageing resistance.
3) slurries are host methacrylic acid-beta-hydroxy ethyl ester, and LD50 is 11200mg/kg, are micro-poison; And host only account for slurries 50% in, be mixed with after the aqueous solution, be actual nontoxic type, there is the construction feature of environmental protection.
4) adopt oxidation-reduction system to cause and solidify, affected by outside temperature, water quality environment less, gel time is easily controlled.
5) slurries viscosity before solidifying is very low, while solidifying, from liquid, first becomes rubbery state, complete contraction, then transfer solid to, so after in pouring into crack, shrinking percentage is very little.
6) this material solid content can be adjusted to more than 98% as required, Gu sand body intensity is higher, more than can reaching 1MPa, has increased substantially the collapsing strength of material, has solved material strength problem, can realize stratum consolidation.
7) gel elasticity is very good, draws to stretch elongation and can reach more than 500%, is applicable to very much the recoverable deformation of strain crack.
8) after slurries solidify, water-swellable rate reaches more than 30%, reaches as high as 300%, when reaching 300 %, still has certain elasticity and mechanical property, is a kind of some strength and better elasticity, sealing material that water-swellable rate is large of having concurrently.
9) slurries can directly mix with inorganic grouting liquid such as grout, bentonite slurry, cement clay slips, after stirring, be together in the milk, solved the technical problem that chemical grout can not be in the milk with the blend of inorganic particle injecting paste material, reduce the cost of injection material, simplified grouting construction process flow process.
Embodiment
For the ease of understanding the present invention, below in connection with specification sheets preferred embodiment, the present invention is done more comprehensively, described meticulously.
embodiment 1
A kind of environmentally-friendly acrylic ester injection material is comprised of by quality proportioning following component:
Host: 100 parts of methacrylic acid-beta-hydroxy ethyl esters;
Linking agent: 30 parts of polyoxyethylene glycol diallyl ethers;
Initiator: 2 parts of ammonium persulphates;
Promotor: 1 part of trolamine;
Solvent: 130 parts, water.
After methacrylic acid-beta-hydroxy ethyl ester, polyoxyethylene glycol diallyl ether, trolamine are mixed, form first liquid; Then ammonium persulphate and water are mixed to rear formation second liquid, during use, first liquid, second liquid are mixed to form to environmentally-friendly acrylic ester grouting slurries, final crosslinking curing.
In polyoxyethylene glycol diallyl ether, the molecular-weight average of polyoxyethylene glycol is 160.
The physicals of slurries is as follows:
1) slurries outward appearance: colourless or light yellow transparent homogeneous liquid; It after slurries final set, is white solid;
2) viscosity: 7cP;
3) density: 1.03g/cm
3;
3) presetting period 13min, final setting time 16min.
The mechanical property of slurries is as follows:
1) the water-swellable rate 30%(7 days of pure colloid);
2) tensile elongation is greater than 350 %;
3) solid sand body ultimate compression strength 0.6MPa;
4) permeability coefficient is less than 10
-7cm/s.
embodiment 2
A kind of environmentally-friendly acrylic ester injection material is comprised of by quality proportioning following component:
Host: 100 parts of methacrylic acid-beta-hydroxy ethyl esters;
Linking agent: 10 parts of polyoxyethylene glycol diallyl ethers;
4 parts of ethoxyquin bisphenol a diallyl ethers;
Initiator: 3 parts of Potassium Persulphates;
Promotor: 0.5 part, Sulfothiorine;
Auxiliary agent: 15 parts of sodium acrylates
Auxiliary agent: 0.02 part of the Tripotassium iron hexacyanide
Solvent: 25 parts, water.
Wherein, in polyoxyethylene glycol diallyl ether, the molecular-weight average of polyoxyethylene glycol is 480, and in ethoxyquin bisphenol a diallyl ether, ethoxyquin functional group number is 8.
After methacrylic acid-beta-hydroxy ethyl ester, polyoxyethylene glycol diallyl ether, ethoxyquin bisphenol a diallyl ether, Sulfothiorine, water, sodium acrylate, the Tripotassium iron hexacyanide are mixed, form first liquid; Then Potassium Persulphate and remaining water are mixed to rear formation second liquid, during use, first liquid, second liquid are mixed to form to environmentally-friendly acrylic ester grouting slurries, final crosslinking curing.
The physicals of slurries is as follows:
1) slurries outward appearance: colourless or light yellow transparent single-phase liquid; It after slurries final set, is white solid;
2) viscosity: 12 cP;
3) density: 1.04 g/cm
3;
3) presetting periods 34 min, final setting time 47 min.
The mechanical property of slurries is as follows:
1) water-swellable rate 230 %(7 days of pure colloid);
2) tensile elongation is greater than 30 %;
3) solid sand body ultimate compression strength 1.7 MPa;
4) permeability coefficient is less than 10
-7cm/s.
embodiment 3
A kind of environmentally-friendly acrylic ester injection material is comprised of by quality proportioning following component:
Host: 100 parts of methacrylic acid β hydroxyl ethyl esters;
Linking agent: 20 parts of polyoxyethylene glycol diallyl ethers;
4 parts of ethoxyquin bisphenol a diallyl ethers;
Initiator: 2 parts of Potassium Persulphate, ammonium persulphates;
Promotor: 0.9 part of Sulfothiorine, sodium bicarbonate;
Solvent: 200 parts, water.
In polyoxyethylene glycol diallyl ether, the molecular-weight average of polyoxyethylene glycol is 1600, and in ethoxyquin bisphenol a diallyl ether, ethoxyquin functional group number is 12.
After methacrylic acid-beta-hydroxy ethyl ester, polyoxyethylene glycol diallyl ether, ethoxyquin bisphenol a diallyl ether, Sulfothiorine, sodium bicarbonate, water are mixed, form first liquid; Then Potassium Persulphate, ammonium persulphate and remaining water are mixed to rear formation second liquid.During use, first liquid, second liquid are mixed to form to environmentally-friendly acrylic ester injection material.
In environmentally-friendly acrylic ester injection material, adding the water cement ratio of equal-volume ratio is 1:1 cement grout, can form organic-inorganic grouting material after mixing and stirring.
The physicals of slurries is as follows: presetting periods 24 min, final setting time 33 min.
The mechanical property of slurries is as follows:
1) organic and inorganic mixed type injection material gel ultimate compression strength 2.5 MPa(28 days intensity);
2) permeability coefficient is less than 10
-6cm/s.
More than show and described ultimate principle of the present invention and principal character and advantage of the present invention.The technician of the industry should understand; the present invention is not restricted to the described embodiments; that in above-described embodiment and specification sheets, describes just illustrates principle of the present invention; without departing from the spirit and scope of the present invention; the present invention also has various changes and modifications, and these changes and improvements all fall in the claimed scope of the invention.The claimed scope of the present invention is defined by appending claims and equivalent thereof.
Claims (10)
1. an environmentally-friendly acrylic ester injection material, is characterized in that, mainly following component, by quality proportioning, consists of:
Host: 100 parts of methacrylic acid-beta-hydroxy ethyl esters
Linking agent: 5～30 parts of the hydrophilic compounds of diallyl containing ether functional group
1～5 part of initiator
0.5～3 part of promotor
0～20 part of auxiliary agent
Solvent: 2～1000 parts, water.
2. a kind of environmentally-friendly acrylic ester injection material as claimed in claim 1, is characterized in that, described linking agent is polyoxyethylene glycol diallyl ether.
3. a kind of environmentally-friendly acrylic ester injection material as claimed in claim 1, is characterized in that, described linking agent is the mixture that polyoxyethylene glycol diallyl ether mixes with ethoxyquin bisphenol a diallyl ether 100: 1 in mass ratio～50.
4. a kind of environmentally-friendly acrylic ester injection material as claimed in claim 2 or claim 3, is characterized in that, in described polyoxyethylene glycol diallyl ether, the molecular weight of polyoxyethylene glycol is between 40～2000.
5. a kind of environmentally-friendly acrylic ester injection material as claimed in claim 3, is characterized in that, in described ethoxyquin bisphenol a diallyl ether, the number of ethoxyquin functional group is 5～15.
6. a kind of environmentally-friendly acrylic ester injection material as claimed in claim 1, it is characterized in that, described initiator is one or more mixture in Potassium Persulphate, ammonium persulphate, Sodium Persulfate, benzoyl peroxide, tertbutyl peroxide, methylethyl ketone peroxide or di-cyclohexylperoxy dicarbonate.
7. a kind of environmentally-friendly acrylic ester injection material as claimed in claim 1, it is characterized in that, described promotor is one or more mixture in tin protochloride, sodium bicarbonate, trolamine, Sulfothiorine, sodium hyposulfate, ferrous sulfate, cobalt naphthenate or β-dimethylaminopropionitrile.
8. a kind of environmentally-friendly acrylic ester injection material as claimed in claim 1, is characterized in that, described auxiliary agent is one or more mixture in sodium acrylate, calcium acrylate, Magnesium Acrylate Prepared, the Tripotassium iron hexacyanide.
9. a preparation method for the environmentally-friendly acrylic ester injection material as described in any one in claim 1～8, is characterized in that, first host, linking agent, promotor is mixed, and wherein also can add auxiliary agent or solvent, forms first liquid; Then by initiator and the even rear second liquid that forms of solvent, during use, first liquid, second liquid are mixed to form to environmentally-friendly acrylic ester grouting slurries, final crosslinking curing.
10. the application of the environmentally-friendly acrylic ester injection material as described in any one in claim 1～8, it is characterized in that, the water-solid ratio that adds equal-volume ratio in described environmentally-friendly acrylic ester injection material is 0.5～5:1 grout, clay cement grout or bentonite cement slurries, forms organic-inorganic grouting material after mixing and stirring.
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|---|---|---|---|
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Cited By (9)
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| CN106243275A (en) * | 2016-08-30 | 2016-12-21 | 北京东方雨虹防水技术股份有限公司 | A kind of environment protection elastic acrylates grouting material and using method |
| CN107200806A (en) * | 2017-06-01 | 2017-09-26 | 青岛科技大学 | Acrylates grouting material and its application method |
| CN107759167A (en) * | 2017-10-19 | 2018-03-06 | 北京市市政工程研究院 | A kind of sprayed on material for repairing underground piping seepage and its preparation method and application |
| CN108441167A (en) * | 2018-05-02 | 2018-08-24 | 浙江工业大学 | Acrylate material and preparation method and application thereof |
| CN111620615A (en) * | 2020-03-12 | 2020-09-04 | 苏州佳固士新材料科技有限公司 | Environment-friendly acrylate plugging and reinforcing grouting material and preparation method and application thereof |
| CN111944264A (en) * | 2019-12-24 | 2020-11-17 | 苏州佳固士新材料科技有限公司 | Rigid-flexible leakage blocking material without breaking bricks in bathroom and kitchen and preparation method thereof |
| WO2021012542A1 (en) * | 2019-07-22 | 2021-01-28 | 浙江福莱新材料股份有限公司 | Water-resistant outdoor advertisement sticker for vehicle body |
| CN113774664A (en) * | 2021-09-18 | 2021-12-10 | 岳阳澳源通信材料有限公司 | Water-blocking yarn, preparation method thereof and application thereof in optical cable and optical fiber sleeve |
| CN114349463A (en) * | 2022-01-11 | 2022-04-15 | 中国矿业大学 | Acrylic resin grouting material and preparation process thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106243275A (en) * | 2016-08-30 | 2016-12-21 | 北京东方雨虹防水技术股份有限公司 | A kind of environment protection elastic acrylates grouting material and using method |
| CN107200806A (en) * | 2017-06-01 | 2017-09-26 | 青岛科技大学 | Acrylates grouting material and its application method |
| CN107200806B (en) * | 2017-06-01 | 2019-04-23 | 青岛科技大学 | Acrylates grouting material and its application method |
| CN107759167A (en) * | 2017-10-19 | 2018-03-06 | 北京市市政工程研究院 | A kind of sprayed on material for repairing underground piping seepage and its preparation method and application |
| CN108441167A (en) * | 2018-05-02 | 2018-08-24 | 浙江工业大学 | Acrylate material and preparation method and application thereof |
| WO2021012542A1 (en) * | 2019-07-22 | 2021-01-28 | 浙江福莱新材料股份有限公司 | Water-resistant outdoor advertisement sticker for vehicle body |
| CN111944264A (en) * | 2019-12-24 | 2020-11-17 | 苏州佳固士新材料科技有限公司 | Rigid-flexible leakage blocking material without breaking bricks in bathroom and kitchen and preparation method thereof |
| CN111620615A (en) * | 2020-03-12 | 2020-09-04 | 苏州佳固士新材料科技有限公司 | Environment-friendly acrylate plugging and reinforcing grouting material and preparation method and application thereof |
| CN113774664A (en) * | 2021-09-18 | 2021-12-10 | 岳阳澳源通信材料有限公司 | Water-blocking yarn, preparation method thereof and application thereof in optical cable and optical fiber sleeve |
| CN113774664B (en) * | 2021-09-18 | 2022-07-29 | 岳阳澳源通信材料有限公司 | Water-blocking yarn, preparation method thereof and application thereof in optical cable and optical fiber sleeve |
| CN114349463A (en) * | 2022-01-11 | 2022-04-15 | 中国矿业大学 | Acrylic resin grouting material and preparation process thereof |
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