CN1195040C - Water soluble polyurethane leak-stopping agent and its prepn - Google Patents
Water soluble polyurethane leak-stopping agent and its prepn Download PDFInfo
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- CN1195040C CN1195040C CNB021114951A CN02111495A CN1195040C CN 1195040 C CN1195040 C CN 1195040C CN B021114951 A CNB021114951 A CN B021114951A CN 02111495 A CN02111495 A CN 02111495A CN 1195040 C CN1195040 C CN 1195040C
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- soluble polyurethane
- water soluble
- ether
- stopping agent
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Abstract
The present invention relates to a water-soluble polyurethane leak stopping agent with a single component and a preparation process thereof. The water-soluble polyurethane leak stopping agent is respectively in a non-solvent type, an inflaming retarding type and a solvent type, and is used for the leak stoppage of underground projects, the reinforcement of foundations and the slope protection of highways and railways. The water-soluble polyurethane leak stopping agent has the formula according to compounding ratios: 95 to 120 portions of toluene diisocynate(TDI), 37 to 50 portions of water-soluble polyether 523, 190 to 215 portions of water-soluble polyether 521, 75 to 90 portions of plasticizing agent (dibutyl ester), 45 to 60 portions of polyether 3050, 0.30 to 0.70 portions of tartaric acid, 38 to 218 portions of trichloroethylene and 0 to 150 portions of acetone. The present invention is characterized in that the water-soluble polyether 523, the water-soluble polyether 521, the polyether 3050 and the dibutyl ester are firstly put in a pot according to the compounding ratios; next, the toluene diisocynate is added to a mixture to generate a prepolymer; the tartaric acid is added and 45 portions of trichloroethylene are firstly added at a temperature of 50 to 60 DEG C; thereby, the water-soluble polyurethane leak stopping agent in a non-solvent type is generated, or the water-soluble polyurethane leak stopping agent in an inflaming retarding type is generated by adding the trichloroethylene of which the adding quantity is 5 times less than the primary adding quantity of the trichloroethylene, or the water-soluble polyurethane leak stopping agent in a solvent type is prepared by adding and stirring the acetone in a compounding ratio.
Description
One, technical field:
The present invention relates to a kind of technology of preparing of macromolecular compound, a kind of water soluble polyurethane leak-stopping agent and preparation technology thereof are particularly disclosed, the production sharing no-solvent type, solvent-borne type and flame retardant type are arranged, be applied in the leak stopping and the foundation stabilization of underground works, the bank protection of road and rail.
Two, background technology:
At present, be used for the leak stopping and the foundation stabilization in underground works, tunnel, reservoir, pond, the bank protection of road and rail, great majority adopt quick smart cement leak stopping, and the leak stopping of this kind material can only be coated in the surface of leak, and especially leaking of concrete reinforcement place can't be with its whole leak stopping, cause in the reinforcing bar long period of soaking water, the reinforcing bar rust is mashed, even fracture, thereby causes qualitative problems of construction.
Three, summary of the invention:
Technical problem to be solved by this invention is to implement effectively for leak stopping and foundation stabilizations such as underground works, tunnel, reservoirs, the perhaps bank protection of road and rail, and reach and use easy construction, concrete castability good, cleaning equipment is convenient.
The present invention is achieved in that disclosing a kind of single-component water soluble polyurethane leak-stopping agent is characterized in that: the constituent prescription of described plugging agent and proportioning (weight part) are as follows: tolylene diisocyanate 95～120; Polyoxyethylene content is at 10～60% polyoxyethylene polyoxypropylene fatty alcohol-ether 37～50, and molecular weight is 5000～7000; Polyoxyethylene content is at 60～90% polyoxyethylene polyoxypropylene fatty alcohol-ether 190～215, and molecular weight is 5000～7000; Softening agent dibutylester 75～90; Polyglycerine oxyalkylene hydrocarbyl ether 45～60, molecular weight are about 3000, hydroxyl value 54～58; Tartrate 0.30～0.70; Trieline 38～218; Acetone 0～150.A kind of single-component water soluble polyurethane leak-stopping agent preparation technology, comprise the feedstock composition polyethers, the dehydration of softening agent, the operating in of preparation of preparing burden linked up in the still and carried out, it is characterized in that: earlier with polyoxyethylene content at 10～60% polyoxyethylene polyoxypropylene fatty alcohol-ether, polyoxyethylene content drops in the still by proportioning at 60～90% polyoxyethylene polyoxypropylene fatty alcohol-ether and Polyglycerine oxyalkylene hydrocarbyl ether and dibutylester, at 100 ℃～150 ℃ following decompression dehydration 1-3 hours, add tolylene diisocyanate then, 70 ℃～90 ℃ of temperature of reaction, 1.5～3.5 hours reaction times, generate performed polymer, temperature is in the time of 50 ℃～60 ℃, tartarize and add 45 parts of trielines first again, then or generate solvent-free water soluble polyurethane leak-stopping agent, perhaps add less than 5 times of trielines of add-on first, generate the flame retardant type water soluble polyurethane leak-stopping agent, perhaps add proportioning acetone, stir and be mixed with the solvent water soluble polyurethane leak-stopping agent.
Product of the present invention has no-solvent type, at solvent-borne type and flame retardant type, the polymer chemistry grouting for water plugging material that adopts the high-performance raw material to make, be used for the leak stopping and the foundation stabilization of underground works, the bank protection of road and rail, after this material injects underground leakage area, meet water and carry out chemical reaction at once, emit carbonic acid gas, brave against the current and spread, expand and sandstone on every side, earth etc. are consolidated into elastomeric induration, reach the purpose of sealing leak stopping, because the material rate of expansion of product is big, induration after the polymerization has favorable extensibility, elasticity, impervious and permanent, the present invention will be described in detail with embodiment below.
Four, embodiment:
Embodiment 1: the single-component water soluble polyurethane leak-stopping agent, and described plugging agent constituent recipe ratio is: tolylene diisocyanate 95; Polyoxyethylene content is at 10～60% polyoxyethylene polyoxypropylene fatty alcohol-ether 37; Polyoxyethylene content is at 60～90% polyoxyethylene polyoxypropylene fatty alcohol-ether 190; Softening agent dibutylester 75; Polyglycerine oxyalkylene hydrocarbyl ether 45; Tartrate 0.30; Trieline 218; With polyoxyethylene content at 10～60% polyoxyethylene polyoxypropylene fatty alcohol-ether, polyoxyethylene content drops in the reactor by proportioning at 60～90% polyoxyethylene polyoxypropylene fatty alcohol-ether and Polyglycerine oxyalkylene hydrocarbyl ether and dibutylester, heat to 110 ℃, decompression dehydration 2 hours, the tolylene diisocyanate that adds proportioning then, 80 ℃ of temperature of reaction, 1.5 hours time, tartarize again, treat to add 45 parts of trielines first after temperature drops to 60 ℃, and then add 173 parts of trielines, generate the water-soluble polychlorostyrene ester of flame retardant type plugging agent, this flame retardant type plugging agent can be transported safe construction safely.
Embodiment 2: identical with embodiment 1 technological process, plugging agent constituent recipe ratio is: tolylene diisocyanate 120; Polyoxyethylene content is at 10～60% polyoxyethylene polyoxypropylene fatty alcohol-ether 50; Polyoxyethylene content is at 60～90% polyoxyethylene polyoxypropylene fatty alcohol-ether 190; Softening agent dibutylester 90; Polyglycerine oxyalkylene hydrocarbyl ether 60; Tartrate 0.70; After adding 45 parts of trielines in the preparation process first, directly be mixed with solvent-free water soluble polyurethane leak-stopping agent.
Embodiment 3: identical with embodiment 2 technological processs, plugging agent constituent recipe ratio is: tolylene diisocyanate 110; Polyoxyethylene content is at 10～60% polyoxyethylene polyoxypropylene fatty alcohol-ether 45; Polyoxyethylene content is at 60～90% polyoxyethylene polyoxypropylene fatty alcohol-ether 200; Softening agent dibutylester 80; Polyglycerine oxyalkylene hydrocarbyl ether 55; Tartrate 0.50; Trieline 45; Acetone 150.In the preparation process, add 45 parts of trielines first, during at 35 ℃～50 ℃, add proportioning acetone in temperature again, stirred 20～30 minutes, be mixed with the solvent water soluble polyurethane leak-stopping agent.
Three types the plugging agent that above embodiment obtains, the technical indicator of its product is viscosity 40～400mPa.s (23 ℃ ± 0.5 ℃); Density 1～1.2g/cm
3(23 ℃ ± 0.5 ℃); Outward appearance is faint yellow or amber transparent liquid; Induce setting time 15s～1080s; Rate of expansion 〉=350%, product of the present invention has easy to use, and concrete castability is good, and cleaning equipment is convenient, induration after the polymerization has favorable extensibility, elasticity, impermeability and permanent, therefore becomes the product of applying of underground works, tunnel leak stopping and foundation stabilization.
Claims (8)
1, a kind of single-component water soluble polyurethane leak-stopping agent is characterized in that: the constituent prescription of described plugging agent and proportioning (weight part) are as follows:
Tolylene diisocyanate 95～120; Polyoxyethylene content is at 10～60% polyoxyethylene polyoxypropylene fatty alcohol-ether 37～50; Polyoxyethylene content is at 60～90% polyoxyethylene polyoxypropylene fatty alcohol-ether 190～215; Softening agent dibutylester 75～90; Polyglycerine oxyalkylene hydrocarbyl ether 45～60; Tartrate 0.30～0.70; Trieline 38～218; Acetone 0～150.
2, water soluble polyurethane leak-stopping agent according to claim 1 is characterized in that: described plugging agent constituent recipe ratio is:
Tolylene diisocyanate 95; Polyoxyethylene content is at 10～60% polyoxyethylene polyoxypropylene fatty alcohol-ether 37; Polyoxyethylene content is at 60～90% polyoxyethylene polyoxypropylene fatty alcohol-ether 190; Softening agent dibutylester 75; Polyglycerine oxyalkylene hydrocarbyl ether 45; Tartrate 0.30; Trieline 218.
3, water soluble polyurethane leak-stopping agent according to claim 1 is characterized in that: described plugging agent constituent recipe ratio is:
Tolylene diisocyanate 120; Polyoxyethylene content is at 10～60% polyoxyethylene polyoxypropylene fatty alcohol-ether 50; Polyoxyethylene content is at 60～90% polyoxyethylene polyoxypropylene fatty alcohol-ether 190; Softening agent dibutylester 90; Polyglycerine oxyalkylene hydrocarbyl ether 60; Tartrate 0.70; Trieline 45.
4, water soluble polyurethane leak-stopping agent according to claim 1 is characterized in that: described plugging agent constituent recipe ratio is:
Tolylene diisocyanate 110; Polyoxyethylene content is at 10～60% polyoxyethylene polyoxypropylene fatty alcohol-ether 45; Polyoxyethylene content is at 60～90% polyoxyethylene polyoxypropylene fatty alcohol-ether 200; Softening agent dibutylester 80; Polyglycerine oxyalkylene hydrocarbyl ether 55; Tartrate 0.50; Trieline 45; Acetone 150.
5, a kind of single-component water soluble polyurethane leak-stopping agent preparation technology, comprise the feedstock composition polyethers, the dehydration of softening agent, the operating in of preparation of preparing burden linked up in the still and carried out, it is characterized in that: earlier with polyoxyethylene content at 10～60% polyoxyethylene polyoxypropylene fatty alcohol-ether, polyoxyethylene content drops in the still by proportioning at 60～90% polyoxyethylene polyoxypropylene fatty alcohol-ether and Polyglycerine oxyalkylene hydrocarbyl ether and dibutylester, at 100 ℃～150 ℃ following decompression dehydration 1-3 hours, add tolylene diisocyanate then, 70 ℃～90 ℃ of temperature of reaction, 1.5～3.5 hours reaction times, generate performed polymer, temperature is in the time of 50 ℃～60 ℃, tartarize and add 45 parts of trielines first again, then or generate solvent-free water soluble polyurethane leak-stopping agent, perhaps add less than 5 times of trielines of add-on first, generate the flame retardant type water soluble polyurethane leak-stopping agent, perhaps add proportioning acetone, stir and be mixed with the solvent water soluble polyurethane leak-stopping agent.
6, water soluble polyurethane leak-stopping agent preparation technology according to claim 5 is characterized in that: after batching generated performed polymer, temperature added 45 parts of trielines first at 50 ℃～60 ℃, generates solvent-free water soluble polyurethane leak-stopping agent.
7, water soluble polyurethane leak-stopping agent preparation technology according to claim 5 is characterized in that: after adding trieline first, add 173 parts of trielines again, generate the flame retardant type water soluble polyurethane leak-stopping agent.
8, water soluble polyurethane leak-stopping agent preparation technology according to claim 5, it is characterized in that: after adding trieline first, during at 35 ℃～50 ℃, add proportioning acetone in temperature again, stirred 20～30 minutes, and be mixed with the solvent water soluble polyurethane leak-stopping agent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB021114951A CN1195040C (en) | 2002-04-25 | 2002-04-25 | Water soluble polyurethane leak-stopping agent and its prepn |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB021114951A CN1195040C (en) | 2002-04-25 | 2002-04-25 | Water soluble polyurethane leak-stopping agent and its prepn |
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| Publication Number | Publication Date |
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| CN1453327A CN1453327A (en) | 2003-11-05 |
| CN1195040C true CN1195040C (en) | 2005-03-30 |
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Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101613452B (en) * | 2009-07-13 | 2011-05-11 | 邬剑明 | Preparation method of plugging composite material polyurethane elastomer used in coal mines |
| CN102477282A (en) * | 2010-11-24 | 2012-05-30 | 中国环境科学研究院 | Antiseepage leak-stopping organic grouting material used for landfill and application method |
| BR112015010388A2 (en) * | 2012-11-09 | 2017-07-11 | Dow Global Technologies Llc | curable crosslinkable composition |
| CN104927021A (en) * | 2015-05-21 | 2015-09-23 | 淄博润义金环保新材料科技有限公司 | Polyurethane material for tunnel water plugging and preparation method thereof |
| CN105255448A (en) * | 2015-09-23 | 2016-01-20 | 成都乐维斯科技有限公司 | New material for improving waterproofing and leak stopping efficiencies in grouting construction process, and preparation method thereof |
| CN108395520A (en) * | 2018-02-09 | 2018-08-14 | 浙江迪思威电气股份有限公司 | A kind of fire retardant insulating plugging material and preparation method thereof for hermetically-sealed cable installation interporal lacuna |
| CN115111434B (en) * | 2022-08-30 | 2022-11-15 | 天津建设发展集团有限公司 | Construction method of underground pipeline |
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