CN108047699A - A kind of environment-friendly type large arch dam hydrophobic polyurethane grout composition and preparation method thereof - Google Patents
A kind of environment-friendly type large arch dam hydrophobic polyurethane grout composition and preparation method thereof Download PDFInfo
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- CN108047699A CN108047699A CN201711331446.2A CN201711331446A CN108047699A CN 108047699 A CN108047699 A CN 108047699A CN 201711331446 A CN201711331446 A CN 201711331446A CN 108047699 A CN108047699 A CN 108047699A
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L75/00—Compositions of polyureas or polyurethanes; Compositions of derivatives of such polymers
- C08L75/04—Polyurethanes
- C08L75/08—Polyurethanes from polyethers
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/08—Processes
- C08G18/10—Prepolymer processes involving reaction of isocyanates or isothiocyanates with compounds having active hydrogen in a first reaction step
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/40—High-molecular-weight compounds
- C08G18/4009—Two or more macromolecular compounds not provided for in one single group of groups C08G18/42 - C08G18/64
- C08G18/4018—Mixtures of compounds of group C08G18/42 with compounds of group C08G18/48
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/40—High-molecular-weight compounds
- C08G18/48—Polyethers
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/40—High-molecular-weight compounds
- C08G18/48—Polyethers
- C08G18/4804—Two or more polyethers of different physical or chemical nature
- C08G18/4812—Mixtures of polyetherdiols with polyetherpolyols having at least three hydroxy groups
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/40—High-molecular-weight compounds
- C08G18/48—Polyethers
- C08G18/4804—Two or more polyethers of different physical or chemical nature
- C08G18/4816—Two or more polyethers of different physical or chemical nature mixtures of two or more polyetherpolyols having at least three hydroxy groups
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/40—High-molecular-weight compounds
- C08G18/48—Polyethers
- C08G18/4829—Polyethers containing at least three hydroxy groups
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/40—High-molecular-weight compounds
- C08G18/48—Polyethers
- C08G18/4854—Polyethers containing oxyalkylene groups having four carbon atoms in the alkylene group
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/70—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the isocyanates or isothiocyanates used
- C08G18/72—Polyisocyanates or polyisothiocyanates
- C08G18/74—Polyisocyanates or polyisothiocyanates cyclic
- C08G18/76—Polyisocyanates or polyisothiocyanates cyclic aromatic
- C08G18/7657—Polyisocyanates or polyisothiocyanates cyclic aromatic containing two or more aromatic rings
- C08G18/7664—Polyisocyanates or polyisothiocyanates cyclic aromatic containing two or more aromatic rings containing alkylene polyphenyl groups
- C08G18/7671—Polyisocyanates or polyisothiocyanates cyclic aromatic containing two or more aromatic rings containing alkylene polyphenyl groups containing only one alkylene bisphenyl group
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- 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
- C08K5/00—Use of organic ingredients
- C08K5/16—Nitrogen-containing compounds
- C08K5/17—Amines; Quaternary ammonium compounds
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- 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
- C08K3/32—Phosphorus-containing compounds
- C08K2003/329—Phosphorus containing acids
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- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
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- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Polyurethanes Or Polyureas (AREA)
Abstract
This application involves a kind of environment-friendly type large arch dam hydrophobic polyurethane grout compositions, are made of base polyurethane prepolymer for use as, plasticizer, environment-friendly type solvent, foam stabiliser, catalyst, retarder；Wherein described base polyurethane prepolymer for use as is reacted by isocyanates and terminal hydroxy group compound to be made, and isocyano-content is 15 25%；And wherein described environment-friendly type large arch dam hydrophobic polyurethane grout composition does not include chain extender.It is various that the advantageous effect of the application is that the environment-friendly type large arch dam hydrophobic polyurethane grout composition of the application solves the problems, such as largely to bring using toxic, low boiling point solvent, and keep preferable induration flexibility, buffer buildings crack is rocked, and probability is leaked in reduction again.
Description
Technical field
This application involves grouting and waterproofing and leakage-stopping service material fields.Specifically, this application involves a kind of environment-friendly types to dredge
Aqueous polyurethane grout composition and preparation method thereof.
Background technology
In industry and civil buildings and various hydraulic engineerings, underground installation, all in the prevalence of different degrees of leakage
Water problems.China has been enter into the waterproofing and leakage-stopping repair epoch at present, and according to the preliminary statistics, the percolation ratio of the various buildings in China is about
60%, the particularly leakage of roofing, basement and toilet are FAQs in building or even have become to be difficult to effect a radical cure
Chronic disease.To the demand cumulative year after year of material for quickly stopping leakage, and chemical grouting material makes extensively already as fast blockage product
With and effect it is good.
Monocomponent polyurethane grouting material is met water using its high activity isocyanate groups and is reacted, and the amount of heat of generation adds
Speed cures, and the carbon dioxide generated can generate the pressure of 0.5-1.0MPa under sealing condition, have to slurry infiltration
Facilitation makes it that can pour into wide 8 microns of micro-cracks, and the permeability made it have is good, water plugging effect is good, reaction is fast
Speed, the features such as adhesive strength is high, one of most widely used chemical grouting material has been increasingly becoming it.Even in many occasions, note
Entering polyurethane grouting material progress sealing leak stopping has become the essential scheme of seepage treatment.
Monocomponent polyurethane grouting material is generally divided into two major class of hydrophobicity and hydrophily.One-component hydrophilic polyurethane fills
What the long-term leak stopping of pulp material relied on is to meet hydrophily induration that water is formed water-swellable obstruction leakage passage repeatedly, grout curing
Induration dehydration will be shunk afterwards, if again water-swellable when its swelling after volume be less than leakage passage volume will answer
Leakage.At present because viscosity, cost and other reasons largely use diluent, so as to reduce induration compactness, increase moisture content permeability,
Further enhance multiple leakage probability.Compared to one-component hydrophily grouting material, one-component hydrophobic polyurethane grouting material consolidation
Body intensity is high, impervious strong, is that water is non-swelling, does not shrink because the induration of grout curing formation is met substantially without probability is leaked again,
Volume change is only related to amount of diluent after drying, and amount of diluent is low not to shrink substantially.
One-component hydrophobic polyurethane grouting material is big in system to reduce the viscosity and cost of grout composition at present
Amount is using inert organic solvents such as acetone, dimethylbenzene, dichloromethane etc., first, improving infiltration of the slurry in crack, hole
Property；Second, adding induration drying post-shrinkage ratio again, cause the presence of the hidden danger leaked again；Third, there are problem of environmental pollution,
And add the safety problem in production, transport and storing process.
For this purpose, there is an urgent need in the art to develop a kind of environment-friendly type large arch dam hydrophobic polyurethane grout composition, with effective
Solve the problems, such as largely brought using toxic, low boiling point organic solvent various, and keep preferable induration flexibility, buffer
Building tear rocks, and probability is leaked in reduction again.
The content of the invention
The application's is designed to provide a kind of environment-friendly type large arch dam hydrophobic polyurethane grout composition, on solving
State the problems of the prior art.The environment-friendly type large arch dam hydrophobic polyurethane grout composition of the application by base polyurethane prepolymer for use as,
Plasticizer, environment-friendly type solvent, foam stabiliser, catalyst, retarder are made, and the environment-friendly type large arch dam hydrophobic polyurethane
Grout composition does not include chain extender without using toxic low boiling point organic solvent yet.The environment-friendly type large arch dam hydrophobicity of the application is gathered
Urethane grout composition keeps preferable induration flexibility, and buffer buildings crack is rocked, and probability is leaked in reduction again.
The purpose of the application, which also resides in, provides a kind of side for preparing environment-friendly type large arch dam hydrophobic polyurethane grout composition
Method.
To achieve these goals, the application provides following technical proposals.
In the first aspect, the application provides a kind of environment-friendly type large arch dam hydrophobic polyurethane grout composition, can be by
Base polyurethane prepolymer for use as, plasticizer, environment-friendly type solvent, foam stabiliser, catalyst, retarder are made；
Wherein described base polyurethane prepolymer for use as is reacted by isocyanates and terminal hydroxy group compound to be made, and isocyano-content is
15-25%；And
Wherein described environment-friendly type large arch dam hydrophobic polyurethane grout composition does not include chain extender.
In a kind of embodiment of first aspect, the isocyanates for polyphenyl polymethylene polyisocyanates and/
Or methyl diphenylene diisocyanate.
In the another embodiment of first aspect, the isocyanates is preferably polyphenyl polymethylene polyisocyanate cyanogen
Acid esters.
In a kind of embodiment of first aspect, the terminal hydroxy group compound for polyether polyol, polyester polyol and
One or more in polytetrahydrofuran diol.
In a kind of embodiment of first aspect, the degree of functionality of the polyether polyol is 2-4, and number-average molecular weight is
300-6000。
In a kind of embodiment of first aspect, the degree of functionality of the polyester polyol is 2, and number-average molecular weight is
500-2000。
In a kind of embodiment of first aspect, the polytetrahydrofuran diol number-average molecular weight is 1000-2000.
In a kind of embodiment of first aspect, the plasticizer is dibutyl phthalate (DBP), O-phthalic
One kind or more in sour diisobutyl ester (DIBP), diethylene glycol dibenzoate (DEDB) and tributyl 2-acetylcitrate (ATBC)
Kind.
In a kind of embodiment of first aspect, the environment-friendly type solvent is propylene glycol methyl ether acetate, nylon acid first
One or more in ester and ethylene acetate.
In a kind of embodiment of first aspect, the foam stabiliser is polysiloxanes-polyoxy alkyl block copolymerization
One or more in object, Tween-80 and Siloxane-Oxyalkylene Copolymers.
In a kind of embodiment of first aspect, the catalyst is urged for tertiary amine catalyst and/or organic metal class
Agent.
In a kind of embodiment of first aspect, the retarder is anhydrous phosphoric acid and/or chlorobenzoyl chloride.
In second aspect, the application provides a kind of poly- ammonia of environment-friendly type large arch dam hydrophobicity prepared as described in relation to the first aspect
The preparation method of ester grout composition, the method may include following steps：
S1：Prepare base polyurethane prepolymer for use as
By the terminal hydroxy group compound be carried out at 100-110 DEG C of dehydration degassing process 1-3 it is small when, moisture control is 0.1%
Hereinafter, add in isocyanates after being cooled to 40-50 DEG C after moisture content qualification, be warming up to 70-90 DEG C reaction 2-4 it is small when, reaction complete
After be cooled to 40-50 DEG C, obtain base polyurethane prepolymer for use as；
S2：Prepare environment-friendly type large arch dam hydrophobic polyurethane grout composition
Plasticizer, environment-friendly type solvent, foam stabiliser, catalyst and retarder are added in into above-mentioned base polyurethane prepolymer for use as,
Environment-friendly type large arch dam hydrophobic polyurethane grout composition as described in relation to the first aspect is obtained after stirring evenly.
The water content of each raw material, polyurethane grout composition nitrogen-filled seal storage are strictly controlled in the application in preparation process
It deposits.
Polyether polyol described herein be Shanghai Dongda Chemical Co., Ltd. self-control, isocyanates, polyester polyol,
The commercially available gained of polytetrahydrofuran diol, plasticizer, environment-friendly type solvent, foam stabiliser, catalyst, retarder.
Compared with prior art, the advantageous effect of the application is that the environment-friendly type large arch dam hydrophobic polyurethane of the application fills
Paste composition passes through the screening to isocyanates, terminal hydroxy group classes of compounds and ratio and environment-friendly type solvent species and content
Selection, be made high solid content and low viscosity grout composition solve the problems, such as largely to bring using toxic, low boiling point solvent it is various,
And preferable induration flexibility is kept, buffer buildings crack is rocked, and probability is leaked in reduction again.
Specific embodiment
Unless otherwise indicated, from context cues or the convention of the prior art is belonged to, otherwise number all in the application
Weight is all based on percentage, and test used and characterizing method are all synchronous with the submission date of the application.It is being applicable in
In the case of, any patent, patent application or disclosure involved in the application are fully incorporated in this as reference, and its
Patent families of equal value is also introduced into as reference, disclosed by these special documents in this field synthetic technology, product
With the definition of fabrication design, polymer, comonomer, initiator or catalyst etc..If the specific art disclosed in the prior art
Defining for language is inconsistent with any definition provided herein, then term provided herein of being subject to defines.
Digital scope in the application is approximation, therefore unless otherwise stated, it may include the number beyond scope
Value.Numberical range include with the increased all numerical value from lower limiting value to upper limit value of 1 unit, condition be any lower value with
There are the intervals of at least two unit between arbitrary high value.If for example, compositional, physics or other property (such as molecules
Amount, melt index (MI) etc.) it is 100 to 1000, it is meant that clearly list all single numbers, such as 100,101,102 etc., with
And all subranges, such as 100 to 166,155 to 170,198 to 200 etc..For comprising the numerical value less than 1 or comprising big
In the scope of 1 fraction (such as 1.1,1.5 etc.), then suitably regard 1 unit as 0.0001,0.001,0.01 or 0.1.
For the scope of the units comprising less than 10 (such as 1 to 5), usually regarding 1 unit as 0.1., these are only intended to table
The specific example of the content reached, and all possible combination of the numerical value between cited minimum and peak is all recognized
For clear record in this application.Numberical range in the application particularly provides various comonomers in acrylate copolymer
In content, content of the various components in photoetching compositions, temperature and these components during acrylic ester synthesizing it is each
Kind feature and property.
On chemical compound in use, unless explicitly stated otherwise, otherwise odd number includes all isomeric forms, otherwise also
So (for example, " hexane " either individually or collectively includes whole isomers of hexane).In addition, it unless explicitly stated otherwise, otherwise uses
"one", the noun that " one kind " or "the" are described also includes its plural form.
Term "comprising", " comprising ", " having " and their derivative are not excluded for any other component, step or mistake
The presence of journey, and whether disclose in this application with these other components, step or process unrelated.To eliminate any query,
Unless expressly stated, otherwise all in the application to use term "comprising"s, the composition of " comprising " or " having ", which can include, appoints
What additional additive, auxiliary material or compound.On the contrary, out to necessary to operating characteristics those, term " substantially by ...
Composition " excludes any other component, step or process outside the scope of any term description.Term " by ...
Composition " does not include any component, step or the process that do not specifically describe or list.Unless expressly stated, otherwise term "or" refers to
The separate member listed or any combination thereof.
In the first aspect, the application provides a kind of environment-friendly type large arch dam hydrophobic polyurethane grout composition.The ring
Guarantor's type large arch dam hydrophobic polyurethane grout composition can be by base polyurethane prepolymer for use as, plasticizer, environment-friendly type solvent, foam stabilization
Agent, catalyst, retarder are made.The base polyurethane prepolymer for use as is reacted by isocyanates and terminal hydroxy group compound to be made, isocyanide
Acid group content is 15-25%；And wherein described environment-friendly type large arch dam hydrophobic polyurethane grout composition does not include chain extender.
In second aspect, the application provides a kind of poly- ammonia of environment-friendly type large arch dam hydrophobicity prepared as described in relation to the first aspect
The preparation method of ester grout composition, the method may include following steps：
S1：Prepare base polyurethane prepolymer for use as
By the terminal hydroxy group compound be carried out at 100-110 DEG C of dehydration degassing process 1-3 it is small when, moisture control is 0.1%
Hereinafter, add in isocyanates after being cooled to 40-50 DEG C after moisture content qualification, be warming up to 70-90 DEG C reaction 2-4 it is small when, reaction complete
After be cooled to 40-50 DEG C, obtain base polyurethane prepolymer for use as；
S2：Prepare environment-friendly type large arch dam hydrophobic polyurethane grout composition
Plasticizer, environment-friendly type solvent, foam stabiliser, catalyst and retarder are added in into above-mentioned base polyurethane prepolymer for use as,
Environment-friendly type large arch dam hydrophobic polyurethane grout composition as described in relation to the first aspect is obtained after stirring evenly.
The water content of each raw material, polyurethane grout composition nitrogen-filled seal storage are strictly controlled in the application in preparation process
It deposits.
Base polyurethane prepolymer for use as
In the environment-friendly type large arch dam hydrophobic polyurethane grout composition of the application, base polyurethane prepolymer for use as is to improve poly- ammonia
The solid content of ester grout composition simultaneously provides hydrophobic key component.The base polyurethane prepolymer for use as of the application is by isocyanates and end
Hydroxy compounds reaction is made, and the isocyano-content of the base polyurethane prepolymer for use as is 15-25%；And wherein described environment-friendly type
Large arch dam hydrophobic polyurethane grout composition does not include chain extender.
In one embodiment, the isocyanates is polyphenyl polymethylene polyisocyanates and/or diphenylmethyl
Alkane diisocyanate.In another embodiment, the isocyanates is preferably polyphenyl polymethylene polyisocyanates.
In one embodiment, the terminal hydroxy group compound is polyether polyol, polyester polyol and PolyTHF
One or more in glycol.In one embodiment, the degree of functionality of the polyether polyol is 2-4, and counts equal molecule
It measures as 300-6000.In one embodiment, the degree of functionality of the polyester polyol is 2, and number-average molecular weight is 500-
2000.In one embodiment, the polytetrahydrofuran diol number-average molecular weight is 1000-2000.In a kind of embodiment
In, polyether polyol described herein is made by oneself for Shanghai Dongda Chemical Co., Ltd., isocyanates, polyester polyol, poly- four
The commercially available gained of hydrogen furans glycol, plasticizer, environment-friendly type solvent, foam stabiliser, catalyst, retarder.
Plasticizer
Plasticizer used in this application is not particularly limited.In one embodiment, the plasticizer is neighbour
Dibatyl phithalate (DBP), diisobutyl phthalate (DIBP), diethylene glycol dibenzoate (DEDB) and acetyl lemon
One or more in sour tributyl (ATBC).
Environment-friendly type solvent
The environment-friendly type large arch dam hydrophobic polyurethane grout composition of the application does not include toxic, low-boiling solvent, with
The problem of exempting from induration shrinking percentage increase after drying, and avoiding environmental pollution.In a preferred embodiment, institute
Environment-friendly type solvent is stated as the one or more in propylene glycol methyl ether acetate, nylon acid methyl esters and ethylene acetate.
Foam stabiliser
Foam used in the environment-friendly type large arch dam hydrophobic polyurethane grout composition of the application is not particularly limited
Stabilizer.In one embodiment, the foam stabiliser for polysiloxanes-polyoxy alkyl block copolymers, Tween-80 and
One or more in Siloxane-Oxyalkylene Copolymers.
Catalyst
Catalysis used in the environment-friendly type large arch dam hydrophobic polyurethane grout composition of the application is not particularly limited
Agent.In one embodiment, the catalyst is tertiary amine catalyst and/or organometallic catalysts.
Retarder
Slow setting used in the environment-friendly type large arch dam hydrophobic polyurethane grout composition of the application is not particularly limited
Agent.In one embodiment, the retarder is anhydrous phosphoric acid and/or chlorobenzoyl chloride.
Embodiment
Below in conjunction with embodiments herein, clear and complete description is carried out to the technical solution of the application.Such as nothing
It illustrates, reagent used and raw material can all be bought by commercial sources.
In following embodiments：Poly methylene poly phenyl poly isocyanate PM-200 is purchased from Yantai Wanhua Polyurethane Company Limited
Company；Methyl diphenylene diisocyanate MDI-50 is purchased from Yantai Wanhua Polyurethane Co., Ltd；Polyether polyol DJ-1,
DJ-2, DJ-3 are Shanghai Dongda Chemical Co., Ltd. commercial product.
In following embodiments, the assay method of NCO% can ASTM D2572-87 according to U.S.'s experiment and materialogy《Amino
Isocyanate group standard test method in formic acid esters material or performed polymer》, with the n-butylamine of hydrochloric acid standard solution overtitration
Method is tested.
Test in following embodiments is carried out according to standard JC/T2041-2010.
Embodiment 1
By 50g polyether polyol DJ-1 (trihydroxylic alcohol of number-average molecular weight 500), 10g polytetrahydrofuran diols PTMG-2000
Add in reaction kettle, stirring, be warming up to 105 ± 2 DEG C of negative pressure dehydration degassing 2 it is small when, be cooled to less than 50 DEG C, how sub- addition 200g is
Methyl polyphenyl polyisocyanate PM-200 when heat preservation 3 is small under 80 ± 2 DEG C of reaction temperature, cools to 50 ± 2 DEG C and is gathered
Urethane performed polymer
Then, 52g dibutyl phthalates, 20g propylene glycol methyl ether acetates, the poly- silicon of 8g are added in into above-mentioned performed polymer
Oxygen alkane-polyoxy alkyl block copolymers AK8806,3g N-methylmorpholine coffee, 0.08g anhydrous phosphoric acids, after stirring
To the polyurethane grout composition according to embodiment 1.
Embodiment 2
By 45g polyether polyol DJ-2 (trihydroxylic alcohol of number-average molecular weight 375), 20g polyether polyol DJ-3 (the equal molecules of number
Amount 5000 trihydroxylic alcohol), 5g polytetrahydrofuran diols PTMG-1000 add in reaction kettle in, stirring, be warming up to 105 ± 2 DEG C of negative pressure
When dehydration degassing 2 is small, less than 50 DEG C are cooled to, 200g poly methylene poly phenyl poly isocyanate PM-200 are added in, at 80 ± 2 DEG C
Reaction temperature under heat preservation 3 it is small when, cool to 50 ± 2 DEG C and obtain base polyurethane prepolymer for use as.
Then, added in into above-mentioned performed polymer 70g diisobutyl phthalates, 20g nylon acids methyl esters, 10g tweens-
80th, 4g triethylene diamines, 0.15g chlorobenzoyl chlorides obtain being in the milk according to the polyurethane of embodiment 2 after stirring and combine
Object.
Embodiment 3
By 50g polyether polyol DJ-1 (trihydroxylic alcohol of number-average molecular weight 500), 10g polycarbonate glycol PCDL-2000,
5g polytetrahydrofuran diols PTMG-1000 is added in reaction kettle, stirring, be warming up to 105 ± 2 DEG C of negative pressure dehydration degassing 2 it is small when, drop
Temperature adds in 200g poly methylene poly phenyl poly isocyanate PM-200,10g methyl diphenylene diisocyanates to less than 50 DEG C
MDI-50 when heat preservation 3 is small under 80 ± 2 DEG C of reaction temperature, cools to 50 ± 2 DEG C of base polyurethane prepolymer for use as.
Then, 30g dibutyl phthalates, 30g diethylene glycol dibenzoates, 20g second are added in into above-mentioned performed polymer
Glycol diacetate, 7g Siloxane-Oxyalkylene Copolymers, 4g TMSDMA N dimethylamine bases ethyl morpholine, 0.15g anhydrous phosphoric acids, are sufficiently stirred
The polyurethane grout composition according to embodiment 3 is obtained after uniformly.
Embodiment 4
By 45g polyether polyol DJ-2 (trihydroxylic alcohol of number-average molecular weight 375), 10g polyether polyol DJ-3 (the equal molecules of number
Amount 5000 trihydroxylic alcohol), 5g polycarbonate glycol PCDL-1000,10g polytetrahydrofuran diols PTMG-2000 add in reaction kettle
In, stirring, be warming up to 105 ± 2 DEG C of negative pressure dehydration degassing 2 it is small when, be cooled to less than 50 DEG C, addition 200g polymethylene polyphenyls
It is small to keep the temperature 3 under 80 ± 2 DEG C of reaction temperature by polyisocyanates PM-200,10g methyl diphenylene diisocyanate MDI-50
When, cool to 50 ± 2 DEG C of base polyurethane prepolymer for use as.
Then, 30g diisobutyl phthalates, 30g tributyl 2-acetylcitrates, 15g are added in into above-mentioned performed polymer
Nylon acid methyl esters, 7g polysiloxanes-polyoxy alkyl block copolymers AK8806,3g TMSDMA N dimethylamine base ethyl morpholine, 0.3g February
Dilaurylate, 0.15g anhydrous phosphoric acids obtain the polyurethane grout composition according to embodiment 4 after stirring.
Embodiment 5
By 35g polyether polyol DJ-2 (trihydroxylic alcohol of number-average molecular weight 375), 30g polyether polyol DJ-3 (the equal molecules of number
Amount 5000 trihydroxylic alcohol), 5g polycarbonate glycol PCDL-500,5g polytetrahydrofuran diols PTMG-1000 add in reaction kettle in,
Stirring, be warming up to 105 ± 2 DEG C of negative pressure dehydration degassing 2 it is small when, be cooled to less than 50 DEG C, addition 200g polymethylene polyphenyls are more
Isocyanates PM-200 when heat preservation 3 is small under 80 ± 2 DEG C of reaction temperature, cools to 50 ± 2 DEG C of base polyurethane prepolymer for use as.
Then, 20g diisobutyl phthalates, 40g tributyl 2-acetylcitrates, 15g are added in into above-mentioned performed polymer
Propylene glycol methyl ether acetate, 9g Tween-80s, 3.5g N-methylmorpholines coffee, 0.2g stannous octoates, 0.1g chlorobenzoyl chlorides, are fully stirred
The polyurethane grout composition according to embodiment 5 is obtained after mixing uniformly.
Embodiment 6
By 30g polyether polyol DJ-2 (trihydroxylic alcohol of number-average molecular weight 375), 40g polyether polyol DJ-3 (the equal molecules of number
Amount 5000 trihydroxylic alcohol), 5g polycarbonate glycol PCDL-500,10g polytetrahydrofuran diols PTMG-2000 add in reaction kettle
In, stirring, be warming up to 105 ± 2 DEG C of negative pressure dehydration degassing 2 it is small when, be cooled to less than 50 DEG C, addition 200g diphenyl methanes two are different
Cyanate MDI-50 when heat preservation 3 is small under 80 ± 2 DEG C of reaction temperature, cools to 50 ± 2 DEG C of base polyurethane prepolymer for use as.
Then, 50g diethylene glycol dibenzoates, 20g tributyl 2-acetylcitrates, 15g second are added in into above-mentioned performed polymer
Glycol diacetate, 6g Siloxane-Oxyalkylene Copolymers, 4g TMSDMA N dimethylamine bases ethyl morpholine, 0.1g chlorobenzoyl chlorides are sufficiently stirred
The polyurethane grout composition according to embodiment 6 is obtained after even.
Using this field conventional method measure the non-volatile content according to the polyurethane grout composition of embodiment 1-6,
The properties such as viscosity, hardening time, compressive strength, linear dimension change rate, shown in gained measurement result following article table 1.
Table 1：According to the property of the polyurethane grout composition of embodiment 1-6
The above-mentioned description to embodiment is understood that for the ease of those skilled in the art and using this Shen
Please.Person skilled in the art obviously easily can make various modifications to these embodiments, and described herein
General Principle is applied in other embodiments without paying performing creative labour.Therefore, the application is not limited to implementation here
Example, those skilled in the art make according to herein disclosed content in the case where not departing from the application scope and spirit
It improves and changes within all scope of the present application.
Claims (10)
1. a kind of environment-friendly type large arch dam hydrophobic polyurethane grout composition, molten by base polyurethane prepolymer for use as, plasticizer, environment-friendly type
Agent, foam stabiliser, catalyst, retarder are made；
Wherein described base polyurethane prepolymer for use as is reacted by isocyanates and terminal hydroxy group compound to be made, isocyano-content 15-
25%；And
Wherein described environment-friendly type large arch dam hydrophobic polyurethane grout composition does not include chain extender.
2. environment-friendly type large arch dam hydrophobic polyurethane grout composition as described in claim 1, which is characterized in that the isocyanide
Acid esters is polyphenyl polymethylene polyisocyanates and/or methyl diphenylene diisocyanate.
3. environment-friendly type large arch dam hydrophobic polyurethane grout composition as described in claim 1, which is characterized in that the end hydroxyl
Based compound is the one or more in polyether polyol, polyester polyol and polytetrahydrofuran diol.
4. environment-friendly type large arch dam hydrophobic polyurethane grout composition as claimed in claim 3, which is characterized in that the polyethers
The degree of functionality of polyalcohol is 2-4, and number-average molecular weight is 300-6000；Or the degree of functionality of the polyester polyol is 2, and number
Average molecular weight is 500-2000；Alternatively, the polytetrahydrofuran diol number-average molecular weight is 1000-2000.
5. environment-friendly type large arch dam hydrophobic polyurethane grout composition as described in claim 1, which is characterized in that the plasticising
Agent is in dibutyl phthalate, diisobutyl phthalate, diethylene glycol dibenzoate and tributyl 2-acetylcitrate
One or more.
6. environment-friendly type large arch dam hydrophobic polyurethane grout composition as described in claim 1, which is characterized in that the environmental protection
Type solvent is the one or more in propylene glycol methyl ether acetate, nylon acid methyl esters and ethylene acetate.
7. environment-friendly type large arch dam hydrophobic polyurethane grout composition as described in claim 1, which is characterized in that the foam
Stabilizer is the one or more in polysiloxanes-polyoxy alkyl block copolymers, Tween-80 and Siloxane-Oxyalkylene Copolymers.
8. environment-friendly type large arch dam hydrophobic polyurethane grout composition as described in claim 1, which is characterized in that the catalysis
Agent is tertiary amine catalyst and/or organometallic catalysts.
9. environment-friendly type large arch dam hydrophobic polyurethane grout composition as described in claim 1, which is characterized in that the slow setting
Agent is anhydrous phosphoric acid and/or chlorobenzoyl chloride.
10. a kind of preparation method for preparing environment-friendly type large arch dam hydrophobic polyurethane grout composition as described in claim 1,
It the described method comprises the following steps：
S1：Prepare base polyurethane prepolymer for use as
By the terminal hydroxy group compound be carried out at 100-110 DEG C of dehydration degassing process 1-3 it is small when, moisture control below 0.1%,
Add in isocyanates after being cooled to 40-50 DEG C after moisture content qualification, be warming up to 70-90 DEG C reaction 2-4 it is small when, reaction after the completion of cool down
To 40-50 DEG C, base polyurethane prepolymer for use as is obtained；
S2：Prepare environment-friendly type large arch dam hydrophobic polyurethane grout composition
Plasticizer, environment-friendly type solvent, foam stabiliser, catalyst and retarder, stirring are added in into above-mentioned base polyurethane prepolymer for use as
Environment-friendly type large arch dam hydrophobic polyurethane grout composition as described in claim 1 is obtained after uniformly.
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108892765A (en) * | 2018-06-08 | 2018-11-27 | 重庆科顺化工新材料有限公司 | A kind of non-solvent single-component polyurethane grouting material and preparation method thereof |
| CN109608615A (en) * | 2018-12-13 | 2019-04-12 | 长安大学 | A kind of novel oiliness polyurethane slurries and preparation method thereof |
| CN109749052A (en) * | 2019-02-02 | 2019-05-14 | 山东润义金新材料科技股份有限公司 | Coal mine low halogen polyurethane water reinforcement material and preparation method thereof |
| CN111072894A (en) * | 2019-12-13 | 2020-04-28 | 南通市裕如工程材料有限责任公司 | Polyurethane grouting material and preparation method thereof |
| CN112574727A (en) * | 2019-09-30 | 2021-03-30 | 中国石油化工股份有限公司 | Plugging composition, plugging agent, preparation method and application thereof |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102079862A (en) * | 2010-12-21 | 2011-06-01 | 中国建筑科学研究院 | Single-component oil-soluble polyurethane grouting material, raw materials and preparation method thereof |
| CN103030772A (en) * | 2011-10-09 | 2013-04-10 | 中国石油化工集团公司 | Isocyanate-terminated grouting material prepolymer and preparation method thereof |
| CN103030967A (en) * | 2011-10-09 | 2013-04-10 | 中国石油化工集团公司 | Polyurethane grouting material |
| CN104592741A (en) * | 2014-12-31 | 2015-05-06 | 江苏苏博特新材料股份有限公司 | High-performance environment-friendly single-component hydrophobic polyurethane grouting material and preparation method thereof |
-
2017
- 2017-12-13 CN CN201711331446.2A patent/CN108047699A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102079862A (en) * | 2010-12-21 | 2011-06-01 | 中国建筑科学研究院 | Single-component oil-soluble polyurethane grouting material, raw materials and preparation method thereof |
| CN103030772A (en) * | 2011-10-09 | 2013-04-10 | 中国石油化工集团公司 | Isocyanate-terminated grouting material prepolymer and preparation method thereof |
| CN103030967A (en) * | 2011-10-09 | 2013-04-10 | 中国石油化工集团公司 | Polyurethane grouting material |
| CN104592741A (en) * | 2014-12-31 | 2015-05-06 | 江苏苏博特新材料股份有限公司 | High-performance environment-friendly single-component hydrophobic polyurethane grouting material and preparation method thereof |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108892765A (en) * | 2018-06-08 | 2018-11-27 | 重庆科顺化工新材料有限公司 | A kind of non-solvent single-component polyurethane grouting material and preparation method thereof |
| CN109608615A (en) * | 2018-12-13 | 2019-04-12 | 长安大学 | A kind of novel oiliness polyurethane slurries and preparation method thereof |
| CN109749052A (en) * | 2019-02-02 | 2019-05-14 | 山东润义金新材料科技股份有限公司 | Coal mine low halogen polyurethane water reinforcement material and preparation method thereof |
| CN112574727A (en) * | 2019-09-30 | 2021-03-30 | 中国石油化工股份有限公司 | Plugging composition, plugging agent, preparation method and application thereof |
| CN112574727B (en) * | 2019-09-30 | 2022-09-09 | 中国石油化工股份有限公司 | Plugging composition, plugging agent, preparation method and application thereof |
| CN111072894A (en) * | 2019-12-13 | 2020-04-28 | 南通市裕如工程材料有限责任公司 | Polyurethane grouting material and preparation method thereof |
| CN114163808A (en) * | 2021-12-22 | 2022-03-11 | 上海东大化学有限公司 | Flame-retardant low-shrinkage hydrophobic polyurethane grouting composition and preparation method thereof |
| CN116217880A (en) * | 2023-05-10 | 2023-06-06 | 山东一诺威聚氨酯股份有限公司 | Polyurethane rubber for ceramic piston sealing and preparation method thereof |
| CN116217880B (en) * | 2023-05-10 | 2023-07-28 | 山东一诺威聚氨酯股份有限公司 | Polyurethane rubber for ceramic piston sealing and preparation method thereof |
| CN117820844A (en) * | 2024-03-06 | 2024-04-05 | 上海越大节能科技有限公司 | Flame-retardant polyurethane grouting material and preparation method thereof |
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Application publication date: 20180518 |