CN106366634B - A kind of PU-EP type dam material for quickly stopping leakage and preparation method thereof - Google Patents
A kind of PU-EP type dam material for quickly stopping leakage and preparation method thereof Download PDFInfo
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- CN106366634B CN106366634B CN201610736239.4A CN201610736239A CN106366634B CN 106366634 B CN106366634 B CN 106366634B CN 201610736239 A CN201610736239 A CN 201610736239A CN 106366634 B CN106366634 B CN 106366634B
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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
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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
- C08G18/4829—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
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
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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)
- Sealing Material Composition (AREA)
Abstract
The invention belongs to plugging material technical fields for building, and in particular to a kind of PU-EP type dam material for quickly stopping leakage and preparation method thereof.Dam material for quickly stopping leakage of the invention, including component A and B component；Component A includes polypropylene oxide triol, aliphatic isocyanates, catalyst n, N- dimethyl benzylamine, novolac epoxy resin, toughener carboxy nitrile rubber, filler silicon powder, diluent ethyl acetate；B component includes 593 type epoxy hardeners, coupling agent epoxy radicals silicone hydride, defoaming agent dimethyl silicone polymer, plasticizer tributyl 2-acetylcitrate, deionized water；Component A and B component are mixed according to the ratio of 3~5:1 of weight ratio, stirring is full and uniform, obtains a kind of PU-EP type dam material for quickly stopping leakage of finished product.Plugging material of the invention has rapid curing in an aqueous medium, and elongation is high, big with the adhesion strength of moist concrete, can effectively adapt to the contraction deformation of concrete, reach fast blockage effect, especially suitable for concrete dam, the fast blockage of water channel.
Description
Technical field
The invention belongs to plugging material technical fields for building, and in particular to a kind of PU-EP type dam material for quickly stopping leakage
And preparation method thereof.
Background technique
Sealing agent is a kind of fast solidifying, and intensity is high, and the hydraulic material with microdilatancy, performance is brilliant, operation letter
Just, can construct on wet surface, also can leakage plugging under water, effect is peculiar, can be widely used for house, underground, under water, drift sand tunnel,
The leak stopping of the engineerings such as dam, sealing, repairing, perfusion and the construction and leak stopping of percolating work maintenance etc..Plugging material at present,
The flexible chemical grouting material such as one pack system soluble polyurethane, acrylates is mostly used greatly, these slurry materials have certain water suction
Swelling function reacts and the deformation of volume rapid expanding with water, achievees the effect that sealing leak stopping.But after these slurry material consolidations
Relatively low with the adhesion strength of moist concrete, elongation is low, when level of ground water changes, will bond loosely because of drying shrinkage
Gu and there is leak stopping failure, it is difficult to meet the water blockoff requirement of deformation joint；Secondly for the hydraulic cement leak stopping material of building trade
Material, some adhesion strengths are low, easy to crack, need to be protected again with other waterproof materials, some adhesion strengths are preferable and setting time compared with
Long, these materials limit the use of product to a certain extent, therefore new fast there is an urgent need to be gone out by Research on Technological Innovation
Fast leak stopping new material is very necessary.
Summary of the invention
Goal of the invention: the object of the present invention is to provide it is a kind of can effectively rapid curing leak stopping, plugging effect in an aqueous medium
Persistently and with a kind of good PU-EP type dam material for quickly stopping leakage of construction material adhesive property and preparation method thereof.
Technical solution: in order to achieve the object of the present invention, the present invention is implemented by following scheme: a kind of PU-EP type dam
Material for quickly stopping leakage is mainly made of component A and B component；
The component A includes:
The parts by weight of its each component match are as follows: 35~45 parts of polypropylene oxide triol, aliphatic isocyanates 8~12
Part, catalyst n, 0.2~0.3 part of N- dimethyl benzylamine, 18~22 parts of novolac epoxy resin, toughener carboxy nitrile rubber 6~
10 parts, 25~65 parts of filler silicon powder, 10~30 parts of diluent ethyl acetate.
The B component includes:
The parts by weight of its each component match are as follows: 593 2~6 parts of type epoxy hardeners, coupling agent epoxy radicals silicone hydride 2~3
Part, 0.3~0.5 part of defoaming agent dimethyl silicone polymer, 2~4 parts of plasticizer tributyl 2-acetylcitrate, deionized water 10~20
Part.
A kind of preparation method of PU-EP type dam material for quickly stopping leakage of the present invention, comprising the following steps:
One, above-mentioned polypropylene oxide triol the preparation of component A: is added to the enamel reaction pot of closed band stirring first
In, 95~105 DEG C are heated to, vacuum degree control is dehydrated 1h under conditions of for -0.085~-0.09MPa, then cools down
To 65 DEG C, it being separately added into aliphatic isocyanates and catalyst n, N- dimethyl benzylamine is warming up to 80~85 DEG C, reaction 2~
2.5h obtains the polyurethane prepolymer with isocyano closed-end structure；It is subsequently added into novolac epoxy resin, toughener carboxyl fourth
Nitrile rubber, filler silicon powder, diluent ethyl acetate, continue 1~1.5h of stirring, finally cool to 35~45 DEG C to get
To a kind of PU-EP type dam material for quickly stopping leakage component A.
Two, the preparation of B component: above-mentioned deionized water is added to first in the enamel reaction pot of closed band stirring, then
Plasticizer tributyl 2-acetylcitrate, coupling agent epoxy radicals silicone hydride, 0.5~1h of stirring is added, is eventually adding 593 type curable epoxides
Agent, defoaming agent dimethyl silicone polymer stir evenly to get a kind of PU-EP type dam material for quickly stopping leakage B component is arrived.
The application method of a kind of PU-EP type dam material for quickly stopping leakage of the invention, comprising the following steps: by plugging material
Component A and B component according to 3~5:1 of weight ratio ratio mix, stir it is full and uniform, obtain a kind of PU-EP type water of finished product
Dam material for quickly stopping leakage.It is used before initial set, mixed plugging material is pressed on into leakage position, is kept for 10~15 minutes,
Leak stopping can be completed.
Beneficial effects of the present invention
A kind of PU-EP type dam material for quickly stopping leakage provided by the invention, using polyurethane prepolymer and epoxy novolac tree
Lipid phase combination technology solves property low with the adhesion strength of moist concrete after mono-component polyurethane flexible leak stoppage material consolidates
Can, while also solving one-component epoxy resin plugging material, because its solidfied material is rigidly larger, elongation is low, it is difficult to adapt to mixed
The deformation requirement of solidifying soil deformation joint；Plugging material of the invention has rapid curing in an aqueous medium, and elongation is high, mixed with humidity
The adhesion strength for coagulating soil is big, can effectively adapt to the contraction deformation of concrete, reach fast blockage effect, especially suitable for coagulation
The fast blockage of native dam, water channel.
Specific embodiment
The present invention will be described in detail with reference to specific examples.
Embodiment 1:
A kind of PU-EP type dam material for quickly stopping leakage of the present invention, preparation method includes the following steps:
One, the preparation of component A: 40 parts of polypropylene oxide triol are added to first the enamel reaction pot of closed band stirring
In, be heated to 98 DEG C, vacuum degree control is dehydrated 1h under conditions of for -0.085MPa, be then cooled to 65 DEG C, respectively plus
Enter 10 parts of aliphatic isocyanates and catalyst n, 0.25 part of N- dimethyl benzylamine, is warming up to 82 DEG C, reacts 2.5h, had
The polyurethane prepolymer of isocyano closed-end structure；It is subsequently added into 20 parts of novolac epoxy resin, toughener carboxy nitrile rubber 8
Part, 45 parts of filler silicon powder, 20 parts of diluent ethyl acetate continue to stir 1h, finally cool to 40 DEG C to get one kind is arrived
PU-EP type dam material for quickly stopping leakage component A.
Two, the preparation of B component: 15 parts of deionized water are added to first in the enamel reaction pot of closed band stirring, then
3 parts of plasticizer tributyl 2-acetylcitrate, 2.5 parts of coupling agent epoxy radicals silicone hydride, stirring 0.5h is added, is eventually adding 593 type rings
4 parts of oxygen curing agent, 0.4 part of defoaming agent dimethyl silicone polymer stir evenly to get a kind of PU-EP type dam fast blockage is arrived
Material B component.
Three, the component A of above-mentioned plugging material and B component being mixed according to the ratio of weight ratio 4:1, stirring is full and uniform,
Obtain a kind of PU-EP type dam material for quickly stopping leakage of finished product.
Embodiment 2:
A kind of PU-EP type dam material for quickly stopping leakage of the present invention, preparation method includes the following steps:
One, the preparation of component A: 35 parts of polypropylene oxide triol are added to first the enamel reaction pot of closed band stirring
In, 100 DEG C are heated to, vacuum degree control is dehydrated 1h under conditions of for -0.088MPa, is then cooled to 65 DEG C, respectively
8 parts of aliphatic isocyanates and catalyst n is added, 0.2 part of N- dimethyl benzylamine, is warming up to 80 DEG C, reacts 2h, obtain having different
The polyurethane prepolymer of cyanate radical closed-end structure；Be subsequently added into 18 parts of novolac epoxy resin, 7 parts of toughener carboxy nitrile rubber,
35 parts of filler silicon powder, 15 parts of diluent ethyl acetate continue to stir 1.2h, finally cool to 38 DEG C to get one kind is arrived
PU-EP type dam material for quickly stopping leakage component A.
Two, the preparation of B component: 12 parts of deionized water are added to first in the enamel reaction pot of closed band stirring, then
2.5 parts of plasticizer tributyl 2-acetylcitrate, 2 parts of coupling agent epoxy radicals silicone hydride, stirring 0.8h is added, is eventually adding 593 type rings
3 parts of oxygen curing agent, 0.3 part of defoaming agent dimethyl silicone polymer stir evenly to get a kind of PU-EP type dam fast blockage is arrived
Material B component.
Three, the component A of above-mentioned plugging material and B component are mixed according to the ratio of weight ratio 4.5:1, stirring is sufficiently equal
It is even, obtain a kind of PU-EP type dam material for quickly stopping leakage of finished product.
Embodiment 3:
A kind of PU-EP type dam material for quickly stopping leakage of the present invention, preparation method includes the following steps:
One, the preparation of component A: 45 parts of polypropylene oxide triol are added to first the enamel reaction pot of closed band stirring
In, 102 DEG C are heated to, vacuum degree control is dehydrated 1h under conditions of for -0.086MPa, is then cooled to 65 DEG C, respectively
12 parts of aliphatic isocyanates and catalyst n is added, 0.3 part of N- dimethyl benzylamine, is warming up to 85 DEG C, reacts 2.5h, had
There is the polyurethane prepolymer of isocyano closed-end structure；It is subsequently added into 22 parts of novolac epoxy resin, toughener carboxy nitrile rubber
10 parts, 60 parts of filler silicon powder, 28 parts of diluent ethyl acetate continue to stir 1.5h, finally cool to 40 DEG C to get arriving
A kind of PU-EP type dam material for quickly stopping leakage component A.
Two, the preparation of B component: 20 parts of deionized water are added to first in the enamel reaction pot of closed band stirring, then
3.5 parts of plasticizer tributyl 2-acetylcitrate, 2.8 parts of coupling agent epoxy radicals silicone hydride, stirring 1h is added, is eventually adding 593 type rings
5 parts of oxygen curing agent, 0.5 part of defoaming agent dimethyl silicone polymer stir evenly to get a kind of PU-EP type dam fast blockage is arrived
Material B component.
Three, the component A of above-mentioned plugging material and B component are mixed according to the ratio of weight ratio 3.5: 1, stirring is sufficiently equal
It is even, obtain a kind of PU-EP type dam material for quickly stopping leakage of finished product.
A kind of PU-EP type dam material for quickly stopping leakage made from embodiment 1-- embodiment 3 is tested for the property, is tested
The results are shown in Table 1:
Table 1: the performance indexes of product in Examples 1 to 3
| Project | Embodiment 1 | Embodiment 2 | Embodiment 3 |
| Density g/cm2 | 1.25 | 1.26 | 1.22 |
| Viscosity mp.s | 520 | 580 | 510 |
| Gel time min in water | 11 | 10 | 12 |
| Elongation % (after solidification 5 days) | 25 | 27 | 30 |
| (after solidification 5 days) adhesion strength Mpa in water | 2.2 | 2.2 | 2 |
| Tensile strength Mpa (after solidification 5 days) | 2.5 | 2.3 | 2.2 |
A kind of PU-EP type dam material for quickly stopping leakage provided by the present invention is described in detail above.Herein
Apply that a specific example illustrates the principle and implementation of the invention, the explanation of above example is only intended to help
Understand core of the invention thought.It should be pointed out that for those skilled in the art, not departing from the present invention
It, can be with several improvements and modifications are made to the present invention under the premise of principle.These improvement and modification should also be as falling into the present invention
In scope of protection of the claims.
Claims (2)
1. a kind of PU-EP type dam material for quickly stopping leakage, which is characterized in that including component A and B component；
The component A includes:
The parts by weight of its each component match are as follows: 35~45 parts of polypropylene oxide triol, is urged at 8~12 parts of aliphatic isocyanates
0.2~0.3 part of agent N, N- dimethyl benzylamine, 18~22 parts of novolac epoxy resin, 6~10 parts of toughener carboxy nitrile rubber,
25~65 parts of filler silicon powder, 10~30 parts of diluent ethyl acetate；
The B component includes:
The parts by weight of its each component match are as follows: 593 2~6 parts of type epoxy hardeners, disappear at 2~3 parts of coupling agent epoxy radicals silicone hydride
0.3~0.5 part of infusion dimethyl silicone polymer, 2~4 parts of plasticizer tributyl 2-acetylcitrate, 10~20 parts of deionized water.
2. a kind of preparation method of PU-EP type dam material for quickly stopping leakage according to claim 1, which is characterized in that by
Step is made in detail below:
(1) preparation of component A: above-mentioned polypropylene oxide triol is added to first in the enamel reaction pot of closed band stirring, is added
Heat is warming up to 95~105 DEG C, and vacuum degree control is dehydrated 1h under conditions of for -0.085~-0.09MPa, is then cooled to 65
DEG C, it is separately added into aliphatic isocyanates and catalyst n, N- dimethyl benzylamine is warming up to 80~85 DEG C, reacts 2~2.5h, obtains
To the polyurethane prepolymer with isocyano closed-end structure；Be subsequently added into novolac epoxy resin, toughener carboxy nitrile rubber,
Filler silicon powder, diluent ethyl acetate, continue 1~1.5h of stirring, finally cool to 35~45 DEG C to get one kind is arrived
PU-EP type dam material for quickly stopping leakage component A；
(2) preparation of B component: above-mentioned deionized water is added to first in the enamel reaction pot of closed band stirring, is then added
Plasticizer tributyl 2-acetylcitrate, coupling agent epoxy radicals silicone hydride, stirring 0.5~1h, be eventually adding 593 type epoxy hardeners,
Defoaming agent dimethyl silicone polymer stirs evenly to get a kind of PU-EP type dam material for quickly stopping leakage B component is arrived；
(3) component A of plugging material and B component are mixed according to the ratio of 3~5:1 of weight ratio, stirring is full and uniform, obtains
A kind of PU-EP type dam material for quickly stopping leakage of finished product.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021119388A1 (en) * | 2019-12-13 | 2021-06-17 | Swift IP, LLC | Methods of sealing wet surfaces by applying moisture-cure hybrid synthetic resin paste |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107459810A (en) * | 2017-09-14 | 2017-12-12 | 广州森邦合成材料有限公司 | A kind of high temperature resistant environment-protective flame retardant polyurethane building template and preparation method thereof |
| CN109265975B (en) * | 2018-08-07 | 2020-03-06 | 山东科技大学 | High-elasticity flame-retardant two-component wall material and preparation method thereof |
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| CN105440264A (en) * | 2015-12-18 | 2016-03-30 | 安徽优特公路养护科技有限公司 | Polymer grouting material for repairing expressway subgrade defects |
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| CN102604367A (en) * | 2012-03-06 | 2012-07-25 | 湖北省京珠高速公路管理处 | Epoxy-polyurethane blending grouting material used for road engineering maintenance |
| CN102924692A (en) * | 2012-09-07 | 2013-02-13 | 湖南工业大学 | High-permeability polyurethane graft-modified epoxy resin interpenetrating-network polymer grouting material and preparation method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2021119388A1 (en) * | 2019-12-13 | 2021-06-17 | Swift IP, LLC | Methods of sealing wet surfaces by applying moisture-cure hybrid synthetic resin paste |
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Effective date of registration: 20190603 Address after: 214251 Guanlin Town Industrial Park Area A, Yixing City, Jiangsu Province Patentee after: Yibo Construction Group Co., Ltd. Address before: 214251 Guanlin Town Industrial Park Area A, Yixing City, Jiangsu Province Patentee before: Jiangsu Gesanghua Paint Co., Ltd. |