CN106432685A - All-water-foamed and high-strength polyurethane grouting uplift material with high construction environment adaptability and low grout viscosity and preparation method of polyurethane grouting uplift material - Google Patents
All-water-foamed and high-strength polyurethane grouting uplift material with high construction environment adaptability and low grout viscosity and preparation method of polyurethane grouting uplift material Download PDFInfo
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- CN106432685A CN106432685A CN201610867343.7A CN201610867343A CN106432685A CN 106432685 A CN106432685 A CN 106432685A CN 201610867343 A CN201610867343 A CN 201610867343A CN 106432685 A CN106432685 A CN 106432685A
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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
- C08G18/08—Processes
- C08G18/16—Catalysts
- C08G18/161—Catalysts containing two or more components to be covered by at least two of the groups C08G18/166, C08G18/18 or C08G18/22
- C08G18/163—Catalysts containing two or more components to be covered by at least two of the groups C08G18/166, C08G18/18 or C08G18/22 covered by C08G18/18 and C08G18/22
- C08G18/165—Catalysts containing two or more components to be covered by at least two of the groups C08G18/166, C08G18/18 or C08G18/22 covered by C08G18/18 and C08G18/22 covered by C08G18/18 and C08G18/24
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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
- C08G18/08—Processes
- C08G18/16—Catalysts
- C08G18/18—Catalysts containing secondary or tertiary amines or salts thereof
- C08G18/20—Heterocyclic amines; Salts thereof
- C08G18/2045—Heterocyclic amines; Salts thereof containing condensed heterocyclic rings
- C08G18/2063—Heterocyclic amines; Salts thereof containing condensed heterocyclic rings having two nitrogen atoms in the condensed ring system
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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
- C08G18/08—Processes
- C08G18/16—Catalysts
- C08G18/22—Catalysts containing metal compounds
- C08G18/24—Catalysts containing metal compounds of tin
- C08G18/244—Catalysts containing metal compounds of tin tin salts of carboxylic acids
- C08G18/246—Catalysts containing metal compounds of tin tin salts of carboxylic acids containing also tin-carbon bonds
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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
- C08G18/4804—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
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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
- C08G2110/00—Foam properties
- C08G2110/0041—Foam properties having specified density
- C08G2110/0066—≥ 150kg/m3
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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
- C08G2110/00—Foam properties
- C08G2110/0083—Foam properties prepared using water as the sole blowing agent
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- 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 an all-water-foamed and high-strength polyurethane grouting uplift material with high construction environment adaptability and low grout viscosity and a preparation method of the polyurethane grouting uplift material. The material comprises a component A and a component B, wherein the component A is prepared from hydrophilic compound polyether polyol, a foaming-gel compound catalyst, a foam stabilizer containing a polyether-polysiloxane structure and water; the component B is polymethylene polyphenylene isocyanate. The polyurethane grouting uplift material has the characteristics as follows: double-component grout has lower viscosity, good groutability and environment adaptability at the room temperature and the lower temperature; water is taken as a foaming agent, the problem about grout storage stability due to high probability of volatility of a physical foaming agent is solved; during grouting construction, the starting and complete foaming time is short and adjustable; the formed foam has good size stability and high compression strength and is clean and environment-friendly; meanwhile, foams have higher adhesion properties with both rock and soil and can be used for rapid uplift repairing of buildings, traffic pavements and engineering under different geological conditions.
Description
Technical field
The present invention relates to a kind of polyurethane slip-casting lifting material and preparation method thereof.
Background technology
Polyurethane slip-casting lifting material is acting on certain comprcssive strength and lifting of being formed after a kind of foaming through slip casting
Rigid foam, can be used for ground lifting, reparation, be gradually applied at present building and field of traffic, be building body and road surface
Quick reparation and safely provided guarantee.At the same time, with the progressively enhancing of environmental consciousness, the full water of safety non-pollution is sent out
Bubble polyurethane foam technology is also increasingly paid attention to.However, common polyurethane slip-casting lifting material is difficult in complicated weather
Normally use with geological conditions, do not reach expected reparation target.Tracing it to its cause mainly has：First, conventional polyurethanes slip casting
The serum viscosity of lifting material is higher, when low temperature and slip casting resistance are larger, it is difficult to which smoothly slip casting, the use of physical blowing agent can
To reduce serum viscosity to a certain extent, but due to its volatile characteristic, the viscosity of serosity is difficult to ensure that；Second, common poly-
How the response time of urethane slip-casting lifting material is reached by the consumption of raising catalyst, causes cost increase, while catalysis
The catalytic effect of agent has some limitations；Third, meet the property noted and under conditions of the response time at the same time, common poly- ammonia
The intensity of ester slip-casting lifting material is often difficult to meet and requires.Therefore whether there is the good property noted, shorter response time
And have higher self-strength, it has also become the key factor that can polyurethane slip-casting lifting material effectively be applied.
Content of the invention
The present invention is intended to provide a kind of full water foamed high-strength polyurethane slip casting lift of the low serum viscosity of high construction environment adaptability
Material and preparation method thereof is risen, technical problem to be solved is to select suitable component and proportioning to make polyurethane slip-casting lifting material
Material has rise time faster and foaming complete time, higher in the case of complicated construction condition is met during slip casting foaming
Self-strength and preferable structural stability, while with higher environmental-protecting performance.
The raw material of the full water foamed high-strength polyurethane slip-casting lifting material of the low serum viscosity of the high construction environment adaptability of the present invention
It is configured to by mass fraction：
Each component ratio is preferably：
Wherein：
The compound polyether polyol of the hydrophilic is mixed by polyether polyol A and polyether polyol B in any proportion and constitutes；
The degree of functionality of the Hydrophilicrto polyether polyhydric alcohol A is 3, number-average molecular weight is 300-400, viscosity is 300-500mPa s；Described
The degree of functionality of Hydrophilicrto polyether polyhydric alcohol B is 3, number-average molecular weight is 400-500, viscosity is 400-600mPa s.
The composite catalyst is by tertiary amine catalyst and organo-metallic catalyst in mass ratio 3:4 are composited；
The tertiary amine catalyst selected from the triethylene diamine solution of 33%wt, 2,4,6- tri- (dimethylamino methyl) phenol,
In N, N- dimethyl benzylamine, three-(dimethylamino-propyl) Hexahydrotriazines, N- ethyl imidazol(e) and -2 Methylimidazole. of 1- benzyl one
Plant or several；
The organo-metallic catalyst is selected from stannous octoate or dibutyl tin laurate；
The foam stabiliser is the organopolysiloxane with polyether-polysiloxane structure, such as AK8805, AK8818 or
AK8889 etc., be selected from therein one or more.
The water is deionized water.
The polyisocyanates is polymethylene multi-phenenyl isocyanate (PAPI), isocyano-content 30-32%, sense
Degree 2.7-2.8.
The preparation of the full water foamed high-strength polyurethane slip-casting lifting material of the low serum viscosity of the high construction environment adaptability of the present invention
Method, is to operate according to the following steps：
1) hydrophilic is combined polyether polyol to stir, composite catalyst, foam stabiliser, water is sequentially added, mix
Component A is obtained after closing uniformly；
2) polyisocyanates is component B；
3) by component A and component B mixing slip casting, it is 1 that coutroi velocity causes the volume ratio of component A and component B:1, that is, obtain
The full water foamed high-strength polyurethane slip-casting lifting material of the low serum viscosity of high construction environment adaptability.
During site operation, component A and component B are filled respectively in two charging baskets of dual liquid type high-pressure grout injector, is utilized
The volume ratio of control valve control component A and component B is 1:1, using high-pressure grout injector, double-component serosity is noted after pipette tips mixing
Enter the slip casting in the hole that has accomplished fluently.Slip casting machine is cleaned using organic solvent after the completion of slip casting.
The invention has the characteristics that：
1st, low viscosity.The present invention adopts low viscosity Hydrophilicrto polyether polyhydric alcohol, and wherein under room temperature condition, component A viscosity is less than
600mPa s, component B viscosity are less than 300mPa s, and with the property noted well, suitable building and roadbed are repaired and lifting
Grouting process.
2nd, expansion rate is very fast and adjustable.Material of the present invention can be risen in 8-10s, in 25-30s foaming complete, gel
Lose flowability afterwards and there is certain initial strength immediately.
3rd, high compression-strength.Material of the present invention after free foaming, solidification compressive strength preferable, in apparent core density be
150～200kg/m3When, parallel to foaming direction compressive strength up to 3.00-5.00MPa, meet building and roadbed lifting
The requirement of reparation.
4th, expansion ratio scalable.Foaming materials multiplying power of the present invention can change therewith with formula adjustment, can meet corresponding
Use requirement.
5th, high-adhesion.Material of the present invention is foamed, caking property is excellent between ground after solidification, the consolidation foam of formation
Body has certain toughness, is suitable for repairing and the lifting of easy deformation ground.
6th, environmental protection.Material of the present invention does not use conventional physical foaming agent (such as CFC, Pentamethylene. etc.), and ODP value is 0,
And be easy to get, easily store；While no volatile organic solvent, flash-point height, nontoxic, to the mankind and environmental friendliness.
The present invention is had the advantage that compared with prior art：
1st, due to present invention uses low viscous Hydrophilicrto polyether polyhydric alcohol, in the premise for ensureing material mechanical performance
Under, can require neatly to adjust the viscosity of double-component serosity according to different slip castings, to meet material in Different climate and geology bar
Use under part, construction environment adaptability is higher, reduces the requirement to equipment to a certain extent.
2nd, the present invention take full advantage of amine and organic tin catalyst compounding after synergistic effect to polyurethane material
The lifting of response speed, and the reasonable employment of high activity hydrophilic polyether polyhydric alcohol is to overcome the catalytic effect of catalyst with addition
The increase of amount and the deficiency that reduces so that material slurry is foamed in 8-10s, and subsequent gel solidification loses flowability, and has
Certain initial strength, with the carrying out of subsequent reactions and stablizing for system, final compressive strength can reach 3.00-
4.20MPa, with higher mechanical strength.
3rd, due to present invention uses water makees foaming agent, not using any physical blowing agent, cost has larger decline, with
When more clean with respect to physical blowing agent, environmental protection.
Specific embodiment
Be given to more detailed description of the present invention with embodiment below, contribute to understanding the present invention, but be not intended to limit this
Bright.
Embodiment 1：
1st, under room temperature, 70 parts of polyether polyol H3035 (degree of functionality 3, number-average molecular weight 352, viscosity 430- are weighed respectively
530mPa s), 30 parts of polyether polyol H3006 (degree of functionality 3, number-average molecular weight 467.5, viscosity 270-370mPa s) are placed in
In dried reactor, obtain being combined polyether polyol.
2nd, by 2.8 parts of composite catalysts (triethylene diamine solution A 33 and tin dilaurate two by 33%wt of precise
Butyl tin T12 in mass ratio 3:4 are composited), 3 parts of foam stabiliser AK-8805,0.2 part of deionized water sequentially add, stirring
It is uniformly dispersed, obtains component A.
3rd, 124 parts of polyisocyanates PAPI are weighed, obtains component B.
4th, component A and component B is pressed 1:Free foaming at room temperature after 1 volume ratio mixing, carries out phase after placing three days
Close performance test.
Low slurry viscosity that the present embodiment is prepared, the quick, performance of high compression-strength polyurethane slip-casting lifting material
It is shown in Table 1：
Table 1
Embodiment 2：
1st, under room temperature, 60 parts of polyether polyol H3035 (degree of functionality 3, number-average molecular weight 352, viscosity 430- are weighed respectively
530mPa s), 40 parts of polyether polyol H3006 (degree of functionality 3, number-average molecular weight 467.5, viscosity 270-370mPa s) are placed in
In dried reactor, obtain being combined polyether polyol.
2nd, by 2.8 parts of composite catalysts (triethylene diamine solution A 33 and tin dilaurate two by 33%wt of precise
Butyl tin T12 in mass ratio 3:4 are composited), 3 parts of foam stabiliser AK-8805,0.3 part of deionized water sequentially add, stirring
It is uniformly dispersed, obtains component A.
3rd, 121 parts of polyisocyanates PAPI are weighed, obtains component B.
4th, component A and component B is pressed 1:Free foaming at room temperature after 1 volume ratio mixing, carries out phase after placing three days
Close performance test.
Low slurry viscosity that the present embodiment is prepared, the performance of quick, middle compressive strength polyurethane slip-casting lifting material
It is shown in Table 2：
Table 2
Embodiment 3：
1st, under room temperature, 90 parts of polyether polyol H3035 (degree of functionality 3, number-average molecular weight 352, viscosity 430- are weighed respectively
530mPa s), 10 parts of polyether polyol H3006 (degree of functionality 3, number-average molecular weight 467.5, viscosity 270-370mPa s) are placed in
In dried reactor, obtain being combined polyether polyol.
2nd, by 2.8 parts of composite catalysts (triethylene diamine solution A 33 and tin dilaurate two by 33%wt of precise
Butyl tin T12 in mass ratio 3:4 are composited), 2 parts of foam stabiliser AK-8818,0.2 part of deionized water sequentially add, stirring
It is uniformly dispersed, obtains component A.
3rd, 127 parts of polyisocyanates PAPI are weighed, obtains component B.
4th, component A and component B is pressed 1:Free foaming at room temperature after 1 volume ratio mixing, carries out phase after placing three days
Close performance test.
Low slurry viscosity that the present embodiment is prepared, middling speed, the performance of high compression-strength polyurethane slip-casting lifting material
It is shown in Table 3：
Table 3
Embodiment 4：
1st, under room temperature, 60 parts of polyether polyol H3035 (degree of functionality 3, number-average molecular weight 352, viscosity 430- are weighed respectively
530mPa s), 40 parts of polyether polyol H304 (degree of functionality 3, number-average molecular weight 404, viscosity 350-450mPa s) be placed in dry
In the reactor of dry mistake, obtain being combined polyether polyol.
2nd, by 2.8 parts of composite catalysts (triethylene diamine solution A 33 and tin dilaurate two by 33%wt of precise
Butyl tin T12 in mass ratio 3:4 are composited), 2 parts of foam stabiliser AK-8818,0.2 part of deionized water sequentially add, stirring
It is uniformly dispersed, obtains component A.
3rd, 116 parts of polyisocyanates PAPI are weighed, obtains component B.
4th, component A and component B is pressed 1:Free foaming at room temperature after 1 volume ratio mixing, carries out phase after placing three days
Close performance test.
Low slurry viscosity that the present embodiment is prepared, middling speed, the performance of middle compressive strength polyurethane slip-casting lifting material
It is shown in Table 4：
Table 4
Presently preferred embodiments of the present invention is the foregoing is only, not in order to limit the present invention, all essences in the present invention
Any modification, equivalent and improvement that is made within god and principle etc., should be included within the scope of the present invention.
Claims (8)
1. the full water foamed high-strength polyurethane slip-casting lifting material of the low serum viscosity of high construction environment adaptability, it is characterised in that：Its
Raw material by the composition of mass fraction is：
2. the full water foamed high-strength polyurethane slip-casting lifting of the low serum viscosity of high construction environment adaptability according to claim 1
Material, it is characterised in that：Its raw material is configured to by mass fraction：
3. the full water foamed high-strength polyurethane slip casting of the low serum viscosity of high construction environment adaptability according to claim 1 and 2
Lifting material, it is characterised in that：
The hydrophilic is combined polyether polyol by Hydrophilicrto polyether polyhydric alcohol A and Hydrophilicrto polyether polyhydric alcohol B in any proportion
Mixing composition；
The degree of functionality of the Hydrophilicrto polyether polyhydric alcohol A is 3, number-average molecular weight is 300-400, viscosity is 300-500mPa s；
The degree of functionality of the Hydrophilicrto polyether polyhydric alcohol B is 3, number-average molecular weight is 400-500, viscosity is 400-600mPa s.
4. the full water foamed high-strength polyurethane slip casting of the low serum viscosity of high construction environment adaptability according to claim 1 and 2
Lifting material, it is characterised in that：
The composite catalyst is by tertiary amine catalyst and organo-metallic catalyst in mass ratio 3:4 are composited；
The tertiary amine catalyst is selected from the triethylene diamine solution of 33%wt, 2,4,6- tri- (dimethylamino methyl) phenol, N, N-
One kind in dimethyl benzylamine, three-(dimethylamino-propyl) Hexahydrotriazines, N- ethyl imidazol(e) and -2 Methylimidazole. of 1- benzyl or
Several；
The organo-metallic catalyst is selected from stannous octoate or dibutyl tin laurate；
5. the full water foamed high-strength polyurethane slip casting of the low serum viscosity of high construction environment adaptability according to claim 1 and 2
Lifting material, it is characterised in that：The foam stabiliser is the organopolysiloxane containing polyether-polysiloxane structure.
6. the full water foamed high-strength polyurethane slip casting of the low serum viscosity of high construction environment adaptability according to claim 1 and 2
Lifting material, it is characterised in that：The water is deionized water.
7. the full water foamed high-strength polyurethane slip casting of the low serum viscosity of high construction environment adaptability according to claim 1 and 2
Lifting material, it is characterised in that：The polyisocyanates is polymethylene multi-phenenyl isocyanate, isocyano-content 30-
32%, degree of functionality 2.7-2.8.
8. a kind of low serum viscosity of high construction environment adaptability in claim 1～7 described in any one is full water foamed high-strength
The preparation method of polyurethane slip-casting lifting material, it is characterised in that operate according to the following steps：
1) hydrophilic is combined polyether polyol to stir, composite catalyst, foam stabiliser, water is sequentially added, mixing is equal
Component A is obtained after even；
2) polyisocyanates is component B；
3) by component A and component B mixing slip casting, it is 1 that coutroi velocity causes the volume ratio of component A and component B:1, that is, obtain height and apply
The full water foamed high-strength polyurethane slip-casting lifting material of the low serum viscosity of work environmental suitability.
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| CN201610867343.7A CN106432685A (en) | 2016-09-29 | 2016-09-29 | All-water-foamed and high-strength polyurethane grouting uplift material with high construction environment adaptability and low grout viscosity and preparation method of polyurethane grouting uplift material |
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|---|---|---|---|---|
| CN107312159A (en) * | 2017-08-03 | 2017-11-03 | 合肥工业大学 | A kind of full water foamed high dispersive silica in situ enhancing polyurethane slip-casting lifting material and preparation method thereof |
| CN109384951A (en) * | 2018-09-30 | 2019-02-26 | 山东诺威新材料有限公司 | For repairing the polyurethane repair material and preparation method thereof for collapsing sedimentation road surface |
| CN109608615A (en) * | 2018-12-13 | 2019-04-12 | 长安大学 | A kind of novel oiliness polyurethane slurries and preparation method thereof |
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| CN109384951A (en) * | 2018-09-30 | 2019-02-26 | 山东诺威新材料有限公司 | For repairing the polyurethane repair material and preparation method thereof for collapsing sedimentation road surface |
| CN109384951B (en) * | 2018-09-30 | 2021-10-22 | 山东一诺威新材料有限公司 | Polyurethane repairing material for repairing subsided pavement and preparation method thereof |
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