CN102417722A - Polyurethane grouting leak-stopping material - Google Patents
Polyurethane grouting leak-stopping material Download PDFInfo
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- CN102417722A CN102417722A CN2011102392795A CN201110239279A CN102417722A CN 102417722 A CN102417722 A CN 102417722A CN 2011102392795 A CN2011102392795 A CN 2011102392795A CN 201110239279 A CN201110239279 A CN 201110239279A CN 102417722 A CN102417722 A CN 102417722A
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- stopping material
- leak
- grouting leak
- stopping
- urethane
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Abstract
The invention discloses a polyurethane grouting leak-stopping material, relating to grouting leak-stopping waterproof materials for building engineering. The polyurethane grouting leak-stopping material comprises the following ingredients: 35-50 weight portions of high-molecular binary or trihydric alcohol, 15-45 weight portions of isocyanate, 2-5 weight portions of dibutyl phthalate, 10-20 weight portions of acetone, and 3-6 weight portions of other auxiliary agents. The polyurethane grouting leak-stopping material is a waterproof consolidating material which has strong waterproof leak stopping capability and high consolidating intensity, has the advantages of good hydrophobic performance, high chemical stability, large penetration radius and solidification volume ratio, high intensity, good toughness, and adjustable viscosity and solidification time, is suitable for grouting various cracks, and has no corrosion to steel bars, good cohesiveness with various base materials, and strong impermeability.
Description
Technical field
The present invention relates to construction work and use the grouting leak-stopping water-proof material, relate to a kind of urethane grouting leak-stopping material particularly.
Background technology
In construction work, owned building all has the waterproof and antiseepage requirement, like reservoir dam, tunnel, airfield runway, high-grade highway, high-speed railway subgrade, underground parking, culvert, swimming pool, treatment tank, skin etc.And,, and make buildings seepage occur because of inside or external conditions variable effect make buildings internal fissure or crack occur along with the use of buildings, influence the normal use and the work-ing life of buildings.
Mainly adopt grouting to expect to repair to fissured processing at present, the grouting material mainly is divided into inorganic cement class and chemical grouting material two big classes.The inorganic cement class causes desciccation crack easily once more, and existing chemical grouting material induration poor flexibility, and viscosity is low, meets diluted easily and the shortcoming that washes away behind the water.
Summary of the invention
The object of the present invention is to provide a kind of urethane grouting leak-stopping material.
Mechanism of the present invention is active ingredient and the water effect in the injection material; Form water-fast induration; The carbonic acid gas generation is arranged in the process that forms induration and make swollen the rising of induration foaming; The penetration radius that having increased the grouting material also strengthens induration and the matrix adhesiveproperties, and the concretion body strength after the curing is higher, do not shrink and play the good result of plugging watertight.
The present invention realizes through following technical scheme:
A kind of urethane grouting leak-stopping material comprises each component of following weight part:
Polymer binary or trivalent alcohol 35～50
Isocyanic ester 15～45
Witcizer 300 2～5
Acetone 10～20
Other auxiliary agents 3～6.
Described polymer binary or trivalent alcohol be molecular weight 1000-2000 polyether Glycols, molecular weight 400-600 polyether Glycols, molecular weight 4000-6000 polyether-tribasic alcohol wherein one or several with the mixture of arbitrary proportion; Can expect to provide reaction-OH base for grouting, and the fundamental property of material is provided.
Described isocyanic ester is TDI, MDI or TDI and the MDI mixture with arbitrary proportion, for this grouting material provides the NCO group of reaction and the fundamental property of material.
Described Witcizer 300 can be replaced by DOP, plays plastification, regulates the snappiness of material.
Described acetone is replaced by ETHYLE ACETATE, butylacetate or YLENE or any several kinds of mixtures with arbitrary proportion, as solvent, works to reduce viscosity of material, increases the concrete castability of material.
Described other auxiliary agents are catalyzer, urethane foam stabilizer or stablizer.
Described catalyzer is organic tin or tertiary amines.
The preparation process of urethane grouting leak-stopping material of the present invention is: the polymer binary that will dewater or trivalent alcohol and acetone solvent add in the four-hole bottle, stir, and are warmed up to 40～60 ℃, add isocyanic ester then lentamente; Under controlled temperature, the dropping time is 30min ~ 60min, after dropwising; And then be warmed up to 70～80 ℃, reaction 2h～3h, cooling; Add other auxiliary agents and stir, discharging gets product.
When using product of the present invention, construction as follows: find out leakage point,, clean out leakage area cutter hair; Electricity consumption hammer drill hole, aperture 12mm-14 ㎜; Chew with plugging agent or the precious pre-buried grouting of leak stopping, spacing is confirmed according to practical situation, is generally one of 0.3m ~ 1m; Inject coloured water with pump, understand the situation of ganging up between each hole and estimate material usage; With electronic or manual slip casting machine urethane grouting material is chewed from slip casting and to be injected the matrix that distress in concrete maybe need be reinforced, during slip casting from down and on, cutting off grouting after 24 hours to chew, seal with leak stopping is precious.
Polyurethane chemical grouting leak-stopping material of the present invention is that a kind of waterproofing and leakage-stopping ability is strong, the higher waterproof cementing material of consolidation strength, is the polymkeric substance that is reacted the polyurethanes that forms by isocyanic ester and polyol.Owing to contain unreacted end isocyanate group in the slurries; When in crack that is injected into the urethane slurries in buildings or the loose moisture ground; This group reacts once just contacting with water, and the water-fast foamable gel shape induration of final generation contains a large amount of polar groups in gelinite between the hole of building tear or ground; With surfaces such as concrete, rock, soil particles very strong avidity is arranged; Cohesive strength is big, thereby stopped up the slit, has played the effect with consolidated subsoil of leaking of shutoff crack.The carbonic acid gas that generates in the reaction; Produce the bigger swelling pressure; Promote hole, the building tear depths diffusion of slurries on the one hand to unconsolidated formation; Impel slurries to form stronger combining on the other hand, strengthened the range of scatter of slurries like this, also strengthened the plugging watertight effect with the buildings slit surfaces.Slurries meet in addition water be difficult for diluted with go out, characteristics such as gelation time can be regulated and control on a large scale.
Compared with prior art, the present invention has the following advantages:
(1) have the good hydrophobic performance, chemicalstability is high, and intensity is high, good toughness;
(2) have bigger penetration radius and coagulated volume ratio, emit CO with water generation chemical reaction
2,The force slurries that produced by gas spread to the depths, crack, form tough and tensile induration;
(3) viscosity and set time adjustable, be fit to the slip casting of various cracks;
(4) reinforcing bar is not had corrosion, good with various substrate bonding property, impervious ability is strong.
Embodiment
Embodiment 1
A kind of urethane grouting leak-stopping material comprises each component of following weight part:
Molecular weight 1000-2000 polyether Glycols 20
Molecular weight 400-600 polyether Glycols 18
TDI 30
Witcizer 300 2
Acetone 10
Organic tin catalyzer 3.
Embodiment 2
A kind of urethane grouting leak-stopping material comprises each component of following weight part:
Molecular weight 1000-2000 polyether Glycols 20
Molecular weight 4000-6000 polyether-tribasic alcohol 25
MDI 15
DOP 3
Acetone 7
ETHYLE ACETATE 6
Tertiary amine catalyst 4.
Embodiment 3
A kind of urethane grouting leak-stopping material comprises each component of following weight part:
Molecular weight 1000-2000 polyether Glycols 10
Molecular weight 4000-6000 polyether-tribasic alcohol 25
Molecular weight 400-600 polyether Glycols 15
MDI 20
TDI 25
DOP 5
YLENE 10
ETHYLE ACETATE 10
Stablizer 6.
Embodiment 4
A kind of urethane grouting leak-stopping material comprises each component of following weight part:
Molecular weight 1000-2000 polyether Glycols 35
MDI 25
DOP 4
Acetone 8
YLENE 8
Urethane foam stabilizer 4.
Embodiment 5
A kind of urethane grouting leak-stopping material comprises each component of following weight part:
Molecular weight 4000-6000 polyether-tribasic alcohol 26
Molecular weight 400-600 polyether Glycols 18
TDI 40
Witcizer 300 5
ETHYLE ACETATE 6
Butylacetate 9
Urethane foam stabilizer 5.
Embodiment 6
A kind of urethane grouting leak-stopping material comprises each component of following weight part:
Molecular weight 1000-2000 polyether Glycols 25
Molecular weight 400-600 polyether Glycols 18
Polymeric MDI 45
DBP 4
Acetone 15
ETHYLE ACETATE 5
Organotin catalysts, stablizer, foam stabilizer 5.
Embodiment 7
A kind of urethane grouting leak-stopping material comprises each component of following weight part:
Molecular weight 1000-2000 polyether Glycols 25
Molecular weight 4000-6000 polyether-tribasic alcohol 15
TDI 25
DOP 2
Acetone 10
Butylacetate 6
Amines catalyst, stablizer, foam stabilizer 6.
Embodiment 8
A kind of urethane grouting leak-stopping material comprises each component of following weight part:
Molecular weight 1000-2000 polyether Glycols 35
MDI 25
DBP 4
YLENE 8
Acetone 8
Organotin, amines catalyst, stablizer, foam stabilizer 5.
Embodiment 9
A kind of urethane grouting leak-stopping material comprises each component of following weight part:
Molecular weight 4000-6000 polyether-tribasic alcohol 20
Molecular weight 400-600 polyether Glycols 18
MDI 20
TDI 15
DOP 5
YLENE 10
Butylacetate 10
Amines catalyst, stablizer, foam stabilizer 6.
Claims (7)
1. urethane grouting leak-stopping material is characterized in that comprising each component of following weight part:
Polymer binary or trivalent alcohol 35～50
Isocyanic ester 15～45
Witcizer 300 2～5
Acetone 10～20
Other auxiliary agents 3～6.
2. a kind of urethane grouting leak-stopping material according to claim 1, it is characterized in that described polymer binary or trivalent alcohol be molecular weight 1000-2000 polyether Glycols, molecular weight 400-600 polyether Glycols, molecular weight 4000-6000 polyether-tribasic alcohol wherein one or several with the mixture of arbitrary proportion.
3. a kind of urethane grouting leak-stopping material according to claim 1 and 2 is characterized in that isocyanic ester is TDI, MDI or TDI and the MDI mixture with arbitrary proportion.
4. a kind of urethane grouting leak-stopping material according to claim 1 and 2 is characterized in that described Witcizer 300 is replaced by DOP.
5. a kind of urethane grouting leak-stopping material according to claim 1 and 2 is characterized in that described acetone is replaced by ETHYLE ACETATE, butylacetate or YLENE or any several kinds of mixtures with arbitrary proportion.
6. a kind of urethane grouting leak-stopping material according to claim 1 and 2 is characterized in that described other auxiliary agents are catalyzer, urethane foam stabilizer, stablizer.
7. a kind of urethane grouting leak-stopping material according to claim 6 is characterized in that described catalyzer is organic tin or tertiary amines.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102392795A CN102417722A (en) | 2011-08-19 | 2011-08-19 | Polyurethane grouting leak-stopping material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102392795A CN102417722A (en) | 2011-08-19 | 2011-08-19 | Polyurethane grouting leak-stopping material |
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| Publication Number | Publication Date |
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| CN102417722A true CN102417722A (en) | 2012-04-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2011102392795A Pending CN102417722A (en) | 2011-08-19 | 2011-08-19 | Polyurethane grouting leak-stopping material |
Country Status (1)
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| CN (1) | CN102417722A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103254403A (en) * | 2013-05-24 | 2013-08-21 | 淄博德信联邦化学工业有限公司 | Preparation method of oil-soluble polyurethane grouting liquid |
| CN103833954A (en) * | 2012-11-27 | 2014-06-04 | 中国石油天然气股份有限公司 | Preparation method of small-dose chemical plugging agent for water injection well under-pressure operation |
| CN103965831A (en) * | 2013-01-24 | 2014-08-06 | 中国石油化工股份有限公司 | Plugging agent for natural gas-stealing pipeline and application method thereof |
| CN111073267A (en) * | 2019-12-13 | 2020-04-28 | 南通市裕如工程材料有限责任公司 | High-molecular elastic plugging agent |
| CN113388245A (en) * | 2021-06-15 | 2021-09-14 | 成都工业学院 | Waterproof leaking stoppage grouting material and preparation method and application thereof |
| CN113416404A (en) * | 2021-06-10 | 2021-09-21 | 广东隽隆新型建材科技有限公司 | New generation plugging grouting material |
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| CN85103075A (en) * | 1985-04-22 | 1987-01-28 | 煤炭工业部煤炭科学研究院北京开采研究所 | Reinforcing, water blockoff polyurethane material |
| CN101220203A (en) * | 2008-01-25 | 2008-07-16 | 天津天大天海新材料有限公司 | Polyurethane chemical grouting material and production method |
| CN101798455A (en) * | 2009-12-04 | 2010-08-11 | 中科院广州化灌工程有限公司 | Urethane acrylate grouting material capable of repeatedly re-expanding when meeting water and preparation method thereof |
| CN102070761A (en) * | 2010-11-23 | 2011-05-25 | 上海东大聚氨酯有限公司 | Chemic grouting polyurethane material, prepolymer thereof and preparation method |
| 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 |
| CN102093536A (en) * | 2010-12-30 | 2011-06-15 | 上海东大聚氨酯有限公司 | Polyurethane prepolymer, polyurethane grouting material and preparation method thereof |
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2011
- 2011-08-19 CN CN2011102392795A patent/CN102417722A/en active Pending
Patent Citations (6)
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| CN85103075A (en) * | 1985-04-22 | 1987-01-28 | 煤炭工业部煤炭科学研究院北京开采研究所 | Reinforcing, water blockoff polyurethane material |
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| CN102070761A (en) * | 2010-11-23 | 2011-05-25 | 上海东大聚氨酯有限公司 | Chemic grouting polyurethane material, prepolymer thereof and preparation method |
| 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 |
| CN102093536A (en) * | 2010-12-30 | 2011-06-15 | 上海东大聚氨酯有限公司 | Polyurethane prepolymer, polyurethane grouting material and preparation method thereof |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103833954A (en) * | 2012-11-27 | 2014-06-04 | 中国石油天然气股份有限公司 | Preparation method of small-dose chemical plugging agent for water injection well under-pressure operation |
| CN103965831A (en) * | 2013-01-24 | 2014-08-06 | 中国石油化工股份有限公司 | Plugging agent for natural gas-stealing pipeline and application method thereof |
| CN103254403A (en) * | 2013-05-24 | 2013-08-21 | 淄博德信联邦化学工业有限公司 | Preparation method of oil-soluble polyurethane grouting liquid |
| CN111073267A (en) * | 2019-12-13 | 2020-04-28 | 南通市裕如工程材料有限责任公司 | High-molecular elastic plugging agent |
| CN113416404A (en) * | 2021-06-10 | 2021-09-21 | 广东隽隆新型建材科技有限公司 | New generation plugging grouting material |
| CN113388245A (en) * | 2021-06-15 | 2021-09-14 | 成都工业学院 | Waterproof leaking stoppage grouting material and preparation method and application thereof |
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Application publication date: 20120418 |