CN107446114A - A kind of polyurethane injecting paste material and preparation method thereof - Google Patents
A kind of polyurethane injecting paste material and preparation method thereof Download PDFInfo
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- CN107446114A CN107446114A CN201710741745.7A CN201710741745A CN107446114A CN 107446114 A CN107446114 A CN 107446114A CN 201710741745 A CN201710741745 A CN 201710741745A CN 107446114 A CN107446114 A CN 107446114A
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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
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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
- C08G18/30—Low-molecular-weight compounds
- C08G18/32—Polyhydroxy compounds; Polyamines; Hydroxyamines
- C08G18/3203—Polyhydroxy compounds
- C08G18/3206—Polyhydroxy compounds aliphatic
-
- 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
- C08G18/4825—Polyethers containing two 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
- C08G18/65—Low-molecular-weight compounds having active hydrogen with high-molecular-weight compounds having active hydrogen
- C08G18/66—Compounds of groups C08G18/42, C08G18/48, or C08G18/52
- C08G18/6666—Compounds of group C08G18/48 or C08G18/52
- C08G18/667—Compounds of group C08G18/48 or C08G18/52 with compounds of group C08G18/32 or polyamines of C08G18/38
- C08G18/6674—Compounds of group C08G18/48 or C08G18/52 with compounds of group C08G18/32 or polyamines of C08G18/38 with compounds of group C08G18/3203
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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
- C08G18/65—Low-molecular-weight compounds having active hydrogen with high-molecular-weight compounds having active hydrogen
- C08G18/66—Compounds of groups C08G18/42, C08G18/48, or C08G18/52
- C08G18/6666—Compounds of group C08G18/48 or C08G18/52
- C08G18/667—Compounds of group C08G18/48 or C08G18/52 with compounds of group C08G18/32 or polyamines of C08G18/38
- C08G18/6681—Compounds of group C08G18/48 or C08G18/52 with compounds of group C08G18/32 or polyamines of C08G18/38 with compounds of group C08G18/32 or C08G18/3271 and/or polyamines of C08G18/38
- C08G18/6688—Compounds of group C08G18/48 or C08G18/52 with compounds of group C08G18/32 or polyamines of C08G18/38 with compounds of group C08G18/32 or C08G18/3271 and/or polyamines of C08G18/38 with compounds of group C08G18/3271
-
- 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
- C08G2110/00—Foam properties
- C08G2110/0083—Foam properties prepared using water as the sole blowing agent
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Polyurethanes Or Polyureas (AREA)
Abstract
The invention discloses a kind of polyurethane injecting paste material formula and preparation method thereof.The formula includes：The components such as polyalcohol, polyisocyanates, organic amine catalyst, organic tin catalyst, chain extender and foam stabiliser, the content of each component are：1 part of polyalcohol, the polyisocyanates of same volume, organic amine catalyst content, which accounts for the 0.3% of polyol quality, organic tin catalyst content and accounts for the 1.6% of polyol quality, chain extender content, accounts for the 0.6% of polyol quality, and foam stabilization agent content accounts for the 1.0% of polyol quality.The preparation method is：Raw material are divided into two components, wherein component A is polyisocyanates, and B component is polyalcohol and auxiliary agent；Appropriate water is added into B component；A, B component are mixed, and be quickly sufficiently stirred.By it is described formula and preparation method made from polyurethane injecting paste material possess toxicity is low, pollution is low, size performance is excellent, low cost, it is easy for construction the advantages that, meet relevant national standard and plug water construction requirement.
Description
Technical field
The invention belongs to chemical material and Grouting engineering technical field, and in particular to a kind of polyurethane injecting paste material and its system
Preparation Method.
Background technology
More than 30, China city carries out subway construction at present, in constructing metro tunnel, is frequently run onto bearing capacity
Sandy soil stratum low, permeability is strong, self-stable ability is poor, especially under the conditions of existing for a large amount of artesian waters, easily trigger piping, collapse
The accidents such as side, differential settlement, excavation difficulty is big, construction cost is high, risk is big, not only threatens the life security of workmen,
Influence construction quality and construction speed, the serious ecological environment that can also induce surface geology disaster, destroy construction surrounding place.
Due to the particularity of metro construction, earth's surface road construction is intensive, and underground utilities are intricate, underground ecology ring
The situation and human survival of border especially underground water are closely bound up, should take appropriate water blockoff measure, ensure anhydrous construction environment.
Slip casting method is not limited by place, small on the influence of structures around, is not influenceed level of ground water, low engineering cost, the soil body in situ is disturbed
It is dynamic small, and with the development of drilling technique, injecting paste material can be injected into the suitable depth in underground by slurry injection technique, based on above-mentioned
Advantage, slip casting method turn into construction method the most frequently used in subway stopping up water work.
Slurry injection technique is to utilize special grouting equipment, under certain pressure effect, the injecting paste material that will prepare in advance
It is pressed into stratum, makes slurries by permeating, filling, cleaving or the mode such as compacted, between soil body particle or between rock fracture progressively
Diffusion, cementing, hardening, and with being combined into by note object with certain globality, higher-strength and rigidity, smaller permeance property
Stable Seed harvest, a special kind of skill the purpose of so as to reach water blockoff antiseepage or reinforce.In reinforcing engineering, injecting paste material generally has
There is certain cementation, after being injected into underground, fragmented rock around or the soil body can be bonded together, become
One new Seed harvest, sharing lood power and integral rigidity are improved, globality enhancing, some special grouting process, such as
Compacting grouting, crowd in-out effects can be produced to surrounding soil in work progress, make the bearing capacity and anti-liquefying ability for being noted the soil body
It is improved；In water blockoff seepage control project, injecting paste material is injected into underground, can be thrown out in rock fracture, soil body space
Moisture and gas, the position of water and gas is occupied, stratum void is filled with, and solidify calculus, it is common with situ rock mass or the soil body
Current are prevented, reach the purpose of antiseepage.As a kind of special construction method, slurry injection technique has the following advantages：Low cost；Duration
It is short, quick；Equipment is simple, small scale；Take up an area that small, effect on environment is small；It is small to soil disturbance in situ；It is easily controllable；Depth
It is easily-controllable etc..There is application in many fields such as building, water conservancy, mine, traffic.
Just at present from the point of view of development, injecting paste material mainly includes inorganic injecting paste material and organic injecting paste material.Inorganic slip casting material
Expect that majority is suspended type solution, using liquid such as water as medium, cured granulate is suspended in medium, when being injected into stratum, solidification
Particle is flowed into formation pore by pump pressure, but in the less special formation of some holes, of inorganic injecting paste material
The more difficult injection of grain, the property noted are poor；Organic injecting paste material is mostly chemical slip casting material, is true solution, can penetrate into tiny hole
In, but because year Japanese Fukuoka acrylamide of chemical material generally existing toxicity problem and environmental issue, especially 1974 triggers
Poisoning people is started to disable some toxic chemicals slurry materials, as the U.S. announced in 1978 to stop production acrylamide,
This causes the development of chemical slip casting material and application by a definite limitation.
Because the property noted of inorganic injecting paste material is poor, organic chemistry injecting paste material is toxic, feature of environmental protection limitation, vast at present
Scholars develop novel green injecting paste material, i.e. superfine cement, both the concrete castability with chemical slip casting material, and environmentally friendly nothing
Poison, moreover it is possible to ensure certain mechanical property, the correlative study currently for superfine cement is abundant not enough, but it progressively takes at last
For the status of chemical grouting material.
Polyurethane is the abbreviation of polyurethanes, refers to the high score containing the carbamate groups repeated on strand
Sub- polymer, reacted by polyisocyanates and polyalcohol in the presence of certain auxiliary agent generation it is not soluble in water, have certain elasticity and
The high-molecular organic material of intensity.Compared with other injecting paste materials, polyurethane injecting paste material has the following advantages：Its raw material comes
Source electrode is wide, and China can voluntarily produce various polyisocyanates and polyalcohol already, cheap；Initial viscosity is relatively low, concrete castability
It is good, it can be injected into the hole of very little；Gel time can be adjusted according to the addition of auxiliary agent, be easily controlled；Ungauged regions during solidification
Or micro- contraction, and cohesive force is extremely strong, can be combined well with surrounding country rock, concrete, sand grains etc., form unified entirety；Gu
Knot body volumetric expansion several times to tens times, and intensity is higher；Stability and durability are stronger；Erosion resisting is strong；Grouting process letter
It is single.Meet《Underground project waterproof specification》Most of performance requirement of middle preferable injecting paste material.
In addition, polyurethanes slurries also have two special advantages, one is in polyurethane injecting paste material solidification process
It can be reacted with water, make it also be unlikely to be diluted or break up under the conditions of existing for a large amount of dynamic water, can guarantee that the property of itself
Energy；Second, the characteristic due to polyurethane reaction in itself, in the presence of grouting pump pump pressure, has diffused into certain distance, and it is anti-
Should during also have a large amount of gases (CO2) releasing, form certain interior pressure again, slurries can be pushed to it is farther away from
From i.e. " second permeation " phenomenon.
The raw material of polyurethane injecting paste material include host and auxiliary agent two large divisions, the conventional raw material for preparing polyurethane
As shown in table 1：
Table 1 often uses polyurethane slurries raw material
Polyurethane injecting paste material whether hydrophilic is divided into oil soluble polyurethane and soluble polyurethane by its.The poly- ammonia of oil-soluble
Ester reactivity is high, meets water immediate response, and reaction speed is fast, and concretion body strength is high, is adapted to quick blocking to move water；Water-soluble poly ammonia
Ester, can be miscible with arbitrary proportion with water using water as medium, and reacted consolidation thing intensity is relatively low, but can fully adapt to ground change
Shape.
The preparation of oil soluble polyurethane injecting paste material, mainly include prepolymer method and one-step method.
Prepolymer method is first to make excessive polyisocyanates and polyol reaction, generates isocyanate terminated based compound, then
Each analog assistant is added thereto and is prepared into slurries, and polyurethane injecting paste material prepared by such a method, toxicity is relatively low, may be used also during slip casting
To relax reaction, heat release is reduced, using single fluid grouting method, injects grout into aquifer water-bearing stratum and just starts to react.It should be noted
Be slurries prepared by this method because reactant is that as molecular weight increases, viscosity also increases with certain molecular weight performed polymer,
Slurries concrete castability is improved in order to reduce viscosity, it is often necessary to is added some organic solvents and is diluted, viscosity is reduced to reach
Purpose, conventional solvent such as acetone, toluene, dimethylbenzene etc. have certain toxicity, and certain injury can be caused to workmen, right
Environment causes certain pollution, solvent it is a large amount of using also can be slurries performance can not perform to it is ultimate attainment.Further, since synthesis
Performed polymer needs certain process costs, therefore cost is higher, and more complicated, the addition of each host and auxiliary agent is operated when synthesizing performed polymer
Sequentially, there are more strict requirements on addition, addition opportunity.Further, since containing a certain amount of in polyalcohol and other auxiliary agents
Moisture, synthesize performed polymer before need to remove water, further increase slurries cost.
One-step method is in slip casting, disposably mixes each component of injecting paste material, co-implanted to arrive underground, is opened after meeting water
Begin to react, compared with slurries prepared by prepolymer method, cost is lower, and solvent is not contained in system or comprises only a small amount of solvent,
Therefore environmental pollution is smaller, size performance is influenceed smaller.But because prepared by the limitation of grouting equipment and technique, one-step method
Slurries have the incomplete possibility of reaction, and to select the low kind of toxicity more, be also noted that security protection during construction.
The difference of aqueous polyurethane injecting paste material and oiliness polyurethane injecting paste material is polyalcohol from hydrophilic poly-
, can be using water as decentralized medium, with water due to containing hydrophilic radical in strand after ether, with polyisocyanates synthetic prepolymer
Dissolved each other with arbitrary proportion, milky resilient gel not soluble in water is produced after reaction, can fully adapt to foundation deformation, and be adapted to more
Kind water quality, potentiality to be exploited are larger.But need to first it be prepared because the mechanical strength of aqueous polyurethane is relatively low, and when preparing performed polymer
Hydrophilicrto polyether polyalcohol, cost are also relatively higher.
The content of the invention
In order to overcome the existing inorganic injecting paste material presence property noted poor, organic chemistry injecting paste material is toxic, by environmental protection
Property limitation the problems such as, the present invention provides a kind of polyurethane injecting paste material formula and preparation method thereof.Pass through the formula and preparation
Polyurethane injecting paste material made from method possess toxicity is low, pollution is low, size performance is excellent, low cost, it is easy for construction the advantages that,
Meet relevant national standard and plug water construction requirement.
To realize above-mentioned target, the present invention uses following technical scheme：
A kind of polyurethane injecting paste material formula, the formula include：Polyalcohol, polyisocyanates, organic amine catalyst,
The components such as organic tin catalyst, chain extender and foam stabiliser, the content of each component are：1 part of polyalcohol, the polyisocyanate of same volume
Cyanate, organic amine catalyst content account for the 0.3% of polyol quality, organic tin catalyst content and account for polyol quality
1.6%th, chain extender content accounts for the 0.6% of polyol quality, and foam stabilization agent content accounts for the 1.0% of polyol quality.
The polyalcohol includes but is not limited to polyoxypropyleneglycol.
Preferably, the organic amine catalyst can select tertiary amine catalyst, including but not limited to triethanolamine.
Preferably, the organic tin catalyst includes but is not limited to dibutyl tin laurate.
Preferably, the chain extender includes but is not limited to ethylene glycol.
Preferably, the foam stabiliser includes but is not limited to dimethicone.
Consider from environmental protection and injecting paste material aspect of performance, this experiment selects not solvent-laden one-step method to prepare polyurethane slip casting
Material, by preferred raw material, optimization reagent addition proportioning finally wishes to prepare that toxicity is low, pollution is low, size performance is excellent
Different, low cost, injecting paste material easy for construction.
A kind of polyurethane injecting paste material preparation method, comprises the following steps：
1) the accurate polyalcohol for weighing certain mass, the addition of additive are calculated by the percentage of polyol quality, added
Stirred after adding with glass bar, collectively constitute B component；
2) polyisocyanates isometric with B component is weighed as component A；
3) appropriate water is added into B component, to simulate underground rich water environment (more than 1g)；
4) A, B component are mixed, and be quickly sufficiently stirred, system starts foaming and intumescing, and liquid level slowly rises, and system is gradual
Becoming sticky, to stopping foaming during certain altitude and rise, product is gradually hardened, when having certain strength and stiffness, and not gluing,
Reaction terminates.
By theoretical toxicity analysis and the feature of environmental protection of the soaked aspect of the experiment two analysis injecting paste material of mortar induration, through undue
Analysis, true border is nontoxic or less toxic in theory for optimization formula；After mortar induration soaks a period of time in water, quality has necessarily
Loss, certain influence can be also produced on water quality, but influenceed smaller.
The advantages of the present invention are：
1) present invention prepares double component solvent-free type polyurethane injecting paste material from one-step method, and volatilizable composition is low, to ring
Border pollution is small, and the slurries that the raw material selected by the application present invention are prepared, and properties can meet to require, two-component is matched somebody with somebody
Than 1：1, it is easy for construction；
2) by oxicity analysis, the true border of injecting paste material prepared by the present invention is nontoxic or less toxic product, passes through mortar
The soaked test result analysis with running water contrast of induration learn that self-control injecting paste material influences smaller on tap water quality；
3) by the grouting simulation test under river channels, by slurries diffusion length, water plugging rate, sealing time and pore water
The slip casting effect comprehensive analysis such as pressure change learns that injecting paste material prepared by the present invention has good sealing performance, can be fast
The fast dynamic water of effectively closure.
Embodiment
A kind of polyurethane injecting paste material formula, the formula include：Polyalcohol, polyisocyanates, organic amine catalyst,
The components such as organic tin catalyst, chain extender and foam stabiliser, the content of each component are：1 part of polyalcohol, the polyisocyanate of same volume
Cyanate, organic amine catalyst content account for the 0.3% of polyol quality, organic tin catalyst content and account for polyol quality
1.6%th, chain extender content accounts for the 0.6% of polyol quality, and foam stabilization agent content accounts for the 1.0% of polyol quality.
The polyalcohol includes but is not limited to polyoxypropyleneglycol.
Preferably, the organic amine catalyst can select tertiary amine catalyst, including but not limited to triethanolamine.
Preferably, the organic tin catalyst includes but is not limited to dibutyl tin laurate.
Preferably, the chain extender includes but is not limited to ethylene glycol.
Preferably, the foam stabiliser includes but is not limited to dimethicone.
A kind of polyurethane injecting paste material preparation method, comprises the following steps：
1) the accurate polyalcohol for weighing certain mass, the addition of additive are calculated by the percentage of polyol quality, added
Stirred after adding with glass bar, collectively constitute B component；
2) polyisocyanates isometric with B component is weighed as component A；
3) appropriate water is added into B component, to simulate underground rich water environment (more than 1g)；
4) A, B component are mixed, and be quickly sufficiently stirred, system starts foaming and intumescing, and liquid level slowly rises, and system is gradual
Becoming sticky, to stopping foaming during certain altitude and rise, product is gradually hardened, when having certain strength and stiffness, and not gluing,
Reaction terminates.
Embodiment
The polymeric MDI that is produced for Jining Hua Kai resin Co., Ltd of polyisocyanates of the present embodiment selection, it is under normal temperature
Brown liquid, density 1.23g/cm3,170 ± 5mPas of viscosity；Polyalcohol selects Jiangsu Hai'an Petrochemical Plant to produce
Polyoxypropyleneglycol, colourless oil liquid under normal temperature, density 1.19g/cm3,150 ± 5mPas of viscosity；To make more isocyanides
Acid esters and polynary alcohol and water concerted reaction, while tertiary amine catalyst and organic tin catalyst are selected, tertiary amine catalyst choosing
Triethanolamine with Chemical Reagent Co., Ltd., Sinopharm Group into production；Organic tin catalyst selects Tianjin light summer fine chemistry industry
The dibutyl tin laurate of research institute's production；The second two of chain extension-crosslinking agent selection Chemical Reagent Co., Ltd., Sinopharm Group production
Alcohol；Foam stabiliser selects the dimethicone of Guangzhou Sui Xin Chemical Co., Ltd.s production.
Composition of raw materials：The accurate polyoxypropyleneglycol for weighing 200g mass, and by polyoxypropyleneglycol quality
0.3% weighs triethanolamine, dibutyl tin laurate is weighed by the 1.6% of polyoxypropyleneglycol quality, by polyoxygenated third
The 0.6% of enediol quality weighs ethylene glycol, and dimethicone is weighed by the 1.0% of polyoxypropyleneglycol quality, common group
Into B component；The polymeric MDI with polyoxypropyleneglycol same volume is weighed as component A.
Preparation process：
1) appropriate water is added into B component, to simulate underground rich water environment (more than 1g)；
2) A, B component are mixed, and be quickly sufficiently stirred, system starts foaming and intumescing, and liquid level slowly rises, and system is gradual
Becoming sticky, to stopping foaming during certain altitude and rise, product is gradually hardened, when having certain strength and stiffness, and not gluing,
Reaction terminates.
Finally it should be noted that：Above-described embodiment is only intended to clearly illustrate example of the present invention, and is not pair
The restriction of embodiment.For the those of ordinary skill in the field, it can also be made on the basis of the above description
Its various forms of changes or variation.There is no necessity and possibility to exhaust all the enbodiments.And thus extend out
Obvious changes or variations still in protection scope of the present invention among.
Claims (7)
- A kind of 1. polyurethane injecting paste material formula, it is characterised in that：The formula includes：Polyalcohol, polyisocyanates, organic amine The components such as class catalyst, organic tin catalyst, chain extender and foam stabiliser, the content of each component are：1 part of polyalcohol, together The polyisocyanates of volume, organic amine catalyst content account for the 0.3% of polyol quality, organic tin catalyst content account for it is more First alcohol quality 1.6%, chain extender content account for the 0.6% of polyol quality, foam stabilization agent content accounts for polyol quality 1.0%.
- A kind of 2. polyurethane injecting paste material formula as claimed in claim 1, it is characterised in that：The polyalcohol includes but unlimited In polyoxypropyleneglycol.
- A kind of 3. polyurethane injecting paste material formula as claimed in claim 1, it is characterised in that：The organic amine catalyst can With from tertiary amine catalyst, including but not limited to triethanolamine.
- A kind of 4. polyurethane injecting paste material formula as claimed in claim 1, it is characterised in that：The organic tin catalyst bag Include but be not limited to dibutyl tin laurate.
- A kind of 5. polyurethane injecting paste material formula as claimed in claim 1, it is characterised in that：The chain extender includes but unlimited In ethylene glycol.
- A kind of 6. polyurethane injecting paste material formula as claimed in claim 1, it is characterised in that：The foam stabiliser include but It is not limited to dimethicone.
- 7. a kind of polyurethane injecting paste material preparation method, comprises the following steps：1) the accurate polyalcohol for weighing certain mass, the addition of additive is calculated by the percentage of polyol quality, after addition Stirred with glass bar, collectively constitute B component；2) polyisocyanates isometric with B component is weighed as component A；3) appropriate water is added into B component；4) A, B component are mixed, and be quickly sufficiently stirred, system starts foaming and intumescing, and liquid level slowly rises, and system gradually becomes It is viscous, to stopping foaming during certain altitude and rise, product is gradually hardened, when there are certain strength and stiffness, and not gluing, instead It should terminate.
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| CN109608615A (en) * | 2018-12-13 | 2019-04-12 | 长安大学 | A kind of novel oiliness polyurethane slurries and preparation method thereof |
| CN109957085A (en) * | 2019-04-10 | 2019-07-02 | 山东科技大学 | A kind of thin coal pillar wind leaking stoppage flexible material |
| CN110130936A (en) * | 2019-06-06 | 2019-08-16 | 中铁十一局集团城市轨道工程有限公司 | It dashes forward in a kind of shield tunneling process and meets the construction method of untreated solution cavity or crack |
| CN110511340A (en) * | 2019-08-29 | 2019-11-29 | 万华节能科技集团股份有限公司 | A kind of High-strength double-component polyurethane material and preparation method thereof that can be used under the conditions of seepage flow |
| JP2020186644A (en) * | 2019-05-08 | 2020-11-19 | 株式会社大阪防水建設社 | Water sealing injection agent |
| CN112225864A (en) * | 2020-10-20 | 2021-01-15 | 陕西煤业化工技术研究院有限责任公司 | Nano composite reinforced material and preparation method thereof |
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| CN109608615A (en) * | 2018-12-13 | 2019-04-12 | 长安大学 | A kind of novel oiliness polyurethane slurries and preparation method thereof |
| CN109957085A (en) * | 2019-04-10 | 2019-07-02 | 山东科技大学 | A kind of thin coal pillar wind leaking stoppage flexible material |
| JP2020186644A (en) * | 2019-05-08 | 2020-11-19 | 株式会社大阪防水建設社 | Water sealing injection agent |
| CN110130936A (en) * | 2019-06-06 | 2019-08-16 | 中铁十一局集团城市轨道工程有限公司 | It dashes forward in a kind of shield tunneling process and meets the construction method of untreated solution cavity or crack |
| CN110511340A (en) * | 2019-08-29 | 2019-11-29 | 万华节能科技集团股份有限公司 | A kind of High-strength double-component polyurethane material and preparation method thereof that can be used under the conditions of seepage flow |
| CN112225864A (en) * | 2020-10-20 | 2021-01-15 | 陕西煤业化工技术研究院有限责任公司 | Nano composite reinforced material and preparation method thereof |
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