CN115403728A - Water leakage-stopping type pipeline plugging foam material and using method thereof - Google Patents
Water leakage-stopping type pipeline plugging foam material and using method thereof Download PDFInfo
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- CN115403728A CN115403728A CN202211193387.8A CN202211193387A CN115403728A CN 115403728 A CN115403728 A CN 115403728A CN 202211193387 A CN202211193387 A CN 202211193387A CN 115403728 A CN115403728 A CN 115403728A
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 52
- 239000006261 foam material Substances 0.000 title claims abstract description 17
- 238000000034 method Methods 0.000 title claims abstract description 12
- 239000003054 catalyst Substances 0.000 claims abstract description 26
- 229920005862 polyol Polymers 0.000 claims abstract description 24
- 150000003077 polyols Chemical class 0.000 claims abstract description 24
- 239000000463 material Substances 0.000 claims abstract description 20
- WVSNNWIIMPNRDB-UHFFFAOYSA-N 1,1,1,3,3,4,4,5,5,6,6,6-dodecafluorohexan-2-one Chemical compound FC(F)(F)C(=O)C(F)(F)C(F)(F)C(F)(F)C(F)(F)F WVSNNWIIMPNRDB-UHFFFAOYSA-N 0.000 claims abstract description 14
- 150000001412 amines Chemical class 0.000 claims abstract description 14
- 239000004721 Polyphenylene oxide Substances 0.000 claims abstract description 13
- 239000006260 foam Substances 0.000 claims abstract description 13
- 229920000570 polyether Polymers 0.000 claims abstract description 13
- 239000003063 flame retardant Substances 0.000 claims abstract description 12
- 239000004088 foaming agent Substances 0.000 claims abstract description 12
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 claims abstract description 11
- 229920000877 Melamine resin Polymers 0.000 claims abstract description 11
- JDSHMPZPIAZGSV-UHFFFAOYSA-N melamine Chemical compound NC1=NC(N)=NC(N)=N1 JDSHMPZPIAZGSV-UHFFFAOYSA-N 0.000 claims abstract description 11
- 229920000642 polymer Polymers 0.000 claims abstract description 11
- 230000002940 repellent Effects 0.000 claims abstract description 11
- 239000005871 repellent Substances 0.000 claims abstract description 11
- 239000012974 tin catalyst Substances 0.000 claims abstract description 11
- 230000002745 absorbent Effects 0.000 claims abstract description 10
- 239000002250 absorbent Substances 0.000 claims abstract description 10
- 239000012948 isocyanate Substances 0.000 claims abstract description 10
- 150000002513 isocyanates Chemical class 0.000 claims abstract description 10
- 229920005989 resin Polymers 0.000 claims abstract description 10
- 239000011347 resin Substances 0.000 claims abstract description 10
- 239000000945 filler Substances 0.000 claims abstract description 9
- 229920002635 polyurethane Polymers 0.000 claims abstract description 9
- 239000004814 polyurethane Substances 0.000 claims abstract description 9
- 239000003381 stabilizer Substances 0.000 claims abstract description 7
- 239000003292 glue Substances 0.000 claims description 26
- 239000004114 Ammonium polyphosphate Substances 0.000 claims description 10
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 10
- 235000019826 ammonium polyphosphate Nutrition 0.000 claims description 10
- 229920001276 ammonium polyphosphate Polymers 0.000 claims description 10
- 229910002804 graphite Inorganic materials 0.000 claims description 10
- 239000010439 graphite Substances 0.000 claims description 10
- 238000007789 sealing Methods 0.000 claims description 10
- WNROFYMDJYEPJX-UHFFFAOYSA-K aluminium hydroxide Chemical compound [OH-].[OH-].[OH-].[Al+3] WNROFYMDJYEPJX-UHFFFAOYSA-K 0.000 claims description 9
- UPMLOUAZCHDJJD-UHFFFAOYSA-N 4,4'-Diphenylmethane Diisocyanate Chemical compound C1=CC(N=C=O)=CC=C1CC1=CC=C(N=C=O)C=C1 UPMLOUAZCHDJJD-UHFFFAOYSA-N 0.000 claims description 8
- 239000000203 mixture Substances 0.000 claims description 5
- IMNIMPAHZVJRPE-UHFFFAOYSA-N triethylenediamine Chemical compound C1CN2CCN1CC2 IMNIMPAHZVJRPE-UHFFFAOYSA-N 0.000 claims description 4
- 239000006185 dispersion Substances 0.000 claims description 3
- 239000002994 raw material Substances 0.000 claims description 3
- 238000003756 stirring Methods 0.000 claims description 3
- KWYHDKDOAIKMQN-UHFFFAOYSA-N N,N,N',N'-tetramethylethylenediamine Chemical compound CN(C)CCN(C)C KWYHDKDOAIKMQN-UHFFFAOYSA-N 0.000 claims description 2
- UEEJHVSXFDXPFK-UHFFFAOYSA-N N-dimethylaminoethanol Chemical compound CN(C)CCO UEEJHVSXFDXPFK-UHFFFAOYSA-N 0.000 claims description 2
- -1 carbodiimide modified MDI Chemical class 0.000 claims description 2
- 229960002887 deanol Drugs 0.000 claims description 2
- 239000012972 dimethylethanolamine Substances 0.000 claims description 2
- DVKJHBMWWAPEIU-UHFFFAOYSA-N toluene 2,4-diisocyanate Chemical compound CC1=CC=C(N=C=O)C=C1N=C=O DVKJHBMWWAPEIU-UHFFFAOYSA-N 0.000 claims description 2
- 229920000247 superabsorbent polymer Polymers 0.000 abstract description 11
- 230000000694 effects Effects 0.000 abstract description 7
- 238000005187 foaming Methods 0.000 abstract description 4
- 238000001514 detection method Methods 0.000 description 7
- 239000003795 chemical substances by application Substances 0.000 description 5
- 239000007789 gas Substances 0.000 description 5
- 238000010521 absorption reaction Methods 0.000 description 4
- 230000000052 comparative effect Effects 0.000 description 3
- 238000010276 construction Methods 0.000 description 3
- 238000009413 insulation Methods 0.000 description 3
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 2
- KYKAJFCTULSVSH-UHFFFAOYSA-N chloro(fluoro)methane Chemical compound F[C]Cl KYKAJFCTULSVSH-UHFFFAOYSA-N 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical compound S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 description 1
- 229920005830 Polyurethane Foam Polymers 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 238000004026 adhesive bonding Methods 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 239000002390 adhesive tape Substances 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 230000002238 attenuated effect Effects 0.000 description 1
- 239000002585 base Substances 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 125000000484 butyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 239000002826 coolant Substances 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000011888 foil Substances 0.000 description 1
- 229910000037 hydrogen sulfide Inorganic materials 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- 239000011496 polyurethane foam Substances 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
- 239000002341 toxic gas Substances 0.000 description 1
Classifications
-
- 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
- C08G18/4009—Two or more macromolecular compounds not provided for in one single group of groups C08G18/42 - C08G18/64
- C08G18/4072—Mixtures of compounds of group C08G18/63 with other macromolecular compounds
-
- 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
-
- 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
-
- 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
- C08G18/63—Block or graft polymers obtained by polymerising compounds having carbon-to-carbon double bonds on to polymers
- C08G18/632—Block or graft polymers obtained by polymerising compounds having carbon-to-carbon double bonds on to polymers onto polyethers
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
- C08J9/0066—Use of inorganic compounding ingredients
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
- C08J9/04—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent
- C08J9/12—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a physical blowing agent
- C08J9/14—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a physical blowing agent organic
- C08J9/143—Halogen containing compounds
-
- 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
- C08G2101/00—Manufacture of cellular products
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2203/00—Foams characterized by the expanding agent
- C08J2203/14—Saturated hydrocarbons, e.g. butane; Unspecified hydrocarbons
- C08J2203/142—Halogenated saturated hydrocarbons, e.g. H3C-CF3
- C08J2203/144—Perhalogenated saturated hydrocarbons, e.g. F3C-CF3
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2375/00—Characterised by the use of polyureas or polyurethanes; Derivatives of such polymers
- C08J2375/04—Polyurethanes
- C08J2375/08—Polyurethanes from polyethers
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Inorganic Chemistry (AREA)
- Sealing Material Composition (AREA)
Abstract
The invention discloses a water leakage-stopping pipeline plugging foam material and a using method thereof, and the water leakage-stopping pipeline plugging foam material comprises a two-component polyurethane foaming agent, wherein the two-component polyurethane foaming agent comprises a component A and a component B; the component A comprises: polyether polyol, polymer polyol, a catalyst, water, a water repellent, SAP (super absorbent polymer) super absorbent resin, a flame-retardant filler, melamine, a foam stabilizer and perfluorohexanone; the component B comprises isocyanate. The polyether polyol with high activity is adopted to be matched with the amine catalyst and the organic tin catalyst, so that the foaming speed of the material is high, the gelling speed is high, the hardness after curing is high, and in the process of plugging the transverse pipeline, the material is not easy to sag, and the pipeline is quickly inflated to form a closed body.
Description
Technical Field
The invention relates to the technical field of power industry, in particular to a water leakage-stopping type pipeline plugging foam material and a using method thereof.
Background
The power pipeline is an important component of a power cable carrier and an urban underground pipeline. Generally, effective measures are taken to seal the two ends of the power pipeline and the port of the pipeline entering the room.
The plugging purpose is as follows:
1. the indoor moisture is large and the electrical cabinet is internally condensed, so that the insulation performance is reduced, and the problems of short circuit, breakdown and the like of equipment are caused.
2. Silt, construction waste and the like flow into the overhaul well and the underground station room from the pipeline, and the construction waste is corroded over time to generate toxic gas and combustible gas (such as hydrogen sulfide, methane and the like), so that great hidden danger is caused to personal safety.
The traditional plugging method has the following modes:
1. inflatable pipeline sealing bag: the inflatable sealing bag is composed of an aluminum foil bag and a butyl adhesive tape, is filled into the power pipeline when used on site, and is inflated by compressed gas, so that the pipeline port is gradually plugged by the sealing bag. However, the most disadvantage is poor durability, and the expansion part in the sealing bag is tightly supported by gas, so that the gas is easy to leak and is attenuated by the gas pressure; the air pressure of the sealing bag is reduced over time, and the sealing bag cannot effectively block the air pressure, so that the phenomena of water seepage and water leakage occur again.
2. The traditional polyurethane foaming agent plugging has the disadvantages of poor strength, poor hardness, low fire resistance and the like.
3. The traditional fire-proof mud plugging has the defects of aging and falling off and poor bonding force, and can not block water flow and be flushed when water pressure exists in the pipeline.
4. The cement and leakage plugging agent has the problems of high material hardness after plugging, easy cracking and water seepage, difficult later-stage disassembly, difficult capacity expansion and the like.
Disclosure of Invention
In view of the above problems in the prior art, it is an object of the present invention to provide a water-filled leak-stopping foam for pipeline plugging.
In order to realize the purpose, the invention adopts the technical scheme that:
a water leakage-stopping type pipeline plugging foam material comprises a two-component polyurethane foaming agent, wherein the two-component polyurethane foaming agent comprises a component A and a component B;
the component A comprises: 60-90 parts of polyether polyol, 10-30 parts of polymer polyol, 1-4 parts of catalyst, 1-3 parts of water, 1-4 parts of water repellent, 4-8 parts of SAP (super absorbent polymer), 30-50 parts of flame-retardant filler, 8-12 parts of melamine, 0.5-1.5 parts of foam stabilizer and 0.5-2 parts of perfluorohexanone;
the component B comprises: 60-90 parts of isocyanate.
Further, the A component comprises: 80 parts of polyether polyol, 20 parts of polymer polyol, 1-3 parts of catalyst, 1-2 parts of water, 1-3 parts of water repellent, 4-6 parts of SAP super absorbent resin, 30-50 parts of flame-retardant filler, 8-12 parts of melamine, 0.5-1.5 parts of foam stabilizer and 0.5-1 part of perfluorohexanone;
the component B comprises: 80 parts of isocyanate.
Further, the catalyst comprises one or a mixture of two of amine catalyst and organic tin catalyst.
Further, the catalyst is prepared from an amine catalyst and an organic tin catalyst according to the ratio of (2-4): 1 by mass ratio.
Furthermore, the amine catalyst is one or a mixture of more than two of triethylene diamine, tetramethyl ethylene diamine and dimethyl ethanolamine.
Further, the flame-retardant filler comprises expanded graphite, aluminum hydroxide and ammonium polyphosphate, and the mass ratio of the expanded graphite to the aluminum hydroxide to the ammonium polyphosphate is (0.5-1.5) to (1-3) to 1.
Further, the isocyanate is one or more of toluene diisocyanate, diphenylmethane diisocyanate, pure MDI, carbodiimide modified MDI, MDI-50, and polymeric MDI I.
Further, the isocyanate is diphenylmethane diisocyanate.
Another object of the present invention is to provide a method for using the water leakage stopping type pipeline plugging foam material, which comprises the following steps:
(1) Adding the raw materials in the component A into stirring equipment according to the proportion for mixing, and dispersing and mixing for 20-60min by using a high-speed dispersion machine to obtain a component A;
(2) The mixed A component and B component are respectively filled into a two-component glue bottle according to the proportion, when in use, the two-component glue bottle is filled into a glue gun, and a mixed glue nozzle is filled into the glue bottle;
(3) When the double-component glue bottle is used, the components in the double-component glue bottle are injected into the power pipeline by using the glue gun, the injected materials are rapidly foamed, and the expansion is filled in each gap in the pipeline, so that the water-stopping sealing work is completed.
Compared with the prior art, the invention has the following advantages:
according to the invention, the high-activity polyether polyol is adopted to be matched with the amine catalyst and the organic tin catalyst, so that the foaming speed of the material is high, the gelling speed is high, the hardness after curing is high, and in the process of plugging the transverse pipeline, the material is not easy to sag, and the pipeline is quickly inflated to form a closed body.
The super absorbent resin is added into the polyurethane foam material, so that the material can expand for the second time after meeting water, and the water is quickly stopped.
The perfluorohexanone is a physical foaming agent and a cooling agent, and can generate a large amount of heat in the material mixing and foaming process, the heat is accumulated in the power pipeline and can exceed 100 ℃, so that the risk of scalding the cable insulation layer and potential safety hazards exist, and the introduction of the perfluorohexanone can effectively reduce the heat generated in the material foaming process, so that the foaming center temperature is lower than 70 ℃; and perfluorohexanone replaces the conventional chlorofluorocarbon physical foaming agent, and the chlorofluorocarbon foaming agent is toxic, pollutes the environment and destroys the ozone layer, so substances for damaging ozone are required to be eliminated step by step according to the provisions of the Montreal protocol. The perfluorohexanone has a low boiling point of only about 49 ℃, is liquid at normal temperature, is environment-friendly, non-toxic, non-combustible, safe and reliable.
Detailed Description
The following describes in detail specific embodiments of the present invention. It should be understood that the detailed description and specific examples, while indicating the present invention, are given by way of illustration and explanation only, not limitation.
The implementation mode is as follows: a water leakage-stopping type pipeline plugging foam material comprises a two-component polyurethane foaming agent, wherein the two-component polyurethane foaming agent comprises a component A and a component B;
the component A comprises: 60-90 parts of polyether polyol, 10-30 parts of polymer polyol, 1-4 parts of catalyst, 1-3 parts of water, 1-4 parts of water repellent, 4-8 parts of SAP (super absorbent polymer), 30-50 parts of flame-retardant filler, 8-12 parts of melamine, 0.5-1.5 parts of foam stabilizer and 0.5-2 parts of perfluorohexanone;
the component B comprises: 60-90 parts of isocyanate.
Wherein the catalyst is prepared from an amine catalyst and an organic tin catalyst according to the ratio of (2-4): 1, and the components are compounded according to the mass ratio.
Wherein the flame-retardant filler comprises expanded graphite, aluminum hydroxide and ammonium polyphosphate, and the mass ratio of the expanded graphite to the ammonium polyphosphate is (0.5-1.5) to (1-3) to 1.
The using method comprises the following steps:
(1) Adding the raw materials in the component A into stirring equipment according to the proportion for mixing, and dispersing and mixing for 20-60min by using a high-speed dispersion machine to obtain a component A;
(2) The mixed A component and B component are respectively filled into a two-component glue bottle according to the proportion, when in use, the two-component glue bottle is filled into a glue gun, and a mixed glue nozzle is filled into the glue bottle;
(3) When the double-component glue bottle is used, the components in the double-component glue bottle are injected into the power pipeline by using the glue gun, the injected materials are rapidly foamed, and the expansion is filled in each gap in the pipeline, so that the water-stopping sealing work is completed.
During the construction earlier with fire-retardant sponge fill in inside apart from mouth of pipe 20cm department of pipeline, be used for preventing the material inflation to the pipeline depths, make shutoff thickness design in apart from mouth of pipe 20cm department, can aim at the inside injecting glue of power pipeline afterwards, the material after the injecting glue can be foamed in 10 seconds, the quick inflation is full of each gap of pipeline to block rivers fast, reuse corrugated sheet covers the mouth of pipe, prevents that the material inflation from overflowing out the mouth of pipe. After the material is cured, the water resistance pressure can reach more than 0.1 MPa, and the material has good water resistance and sealing property.
Because the material is the foam, inside is even bubble hole structure, cuts easily again when possessing the high rigidity performance, again under the condition of later stage maintenance dilatation, demolishs easily.
The following specific examples illustrate only the composition of the A component, the others being in accordance with the above embodiments.
Example 1
The component A comprises the following components: 80 parts of high-activity polyether polyol, 20 parts of polymer polyol, 1.5 parts of amine catalyst, 0.5 part of organic tin catalyst, 1 part of water, 2 parts of water repellent, 5 parts of SAP super absorbent resin, 10 parts of expanded graphite, 20 parts of aluminum hydroxide, 10 parts of melamine, 10 parts of ammonium polyphosphate, 1 part of foam homogenizing agent and 1 part of perfluorohexanone.
Example 2
The component A comprises the following components: 80 parts of high-activity polyether polyol, 18 parts of polymer polyol, 1.2 parts of amine catalyst, 1.0 part of organic tin catalyst, 1 part of water, 2 parts of water repellent, 5 parts of SAP super absorbent resin, 10 parts of expanded graphite, 20 parts of aluminum hydroxide, 10 parts of melamine, 10 parts of ammonium polyphosphate, 1 part of foam homogenizing agent and 1 part of perfluorohexanone.
Example 3
The component A comprises the following components: 80 parts of high-activity polyether polyol, 18 parts of polymer polyol, 2.0 parts of amine catalyst, 0.5 part of organic tin catalyst, 1 part of water, 2 parts of water repellent, 6 parts of SAP super absorbent resin, 10 parts of expanded graphite, 20 parts of aluminum hydroxide, 10 parts of melamine, 10 parts of ammonium polyphosphate, 1 part of foam homogenizing agent and 1 part of perfluorohexanone.
Comparative example 1
The component A comprises the following components: 80 parts of high-activity polyether polyol, 20 parts of polymer polyol, 1.5 parts of amine catalyst, 0.5 part of organic tin catalyst, 1 part of water, 2 parts of water repellent, 10 parts of expanded graphite, 20 parts of aluminum hydroxide, 10 parts of melamine, 10 parts of ammonium polyphosphate, 1 part of foam stabilizer and 1 part of perfluorohexanone.
Comparative example 2
The component A comprises the following components: 80 parts of high-activity polyether polyol, 18 parts of polymer polyol, 1.2 parts of amine catalyst, 1.0 part of organic tin catalyst, 1 part of water, 2 parts of water repellent, 6 parts of SAP super absorbent resin, 10 parts of expanded graphite, 20 parts of aluminum hydroxide, 10 parts of melamine, 10 parts of ammonium polyphosphate and 1 part of foam homogenizing agent.
Detection experiment
Determining the flame retardant grade according to a detection method of UL 94-2013REV.6; detecting the heat conductivity coefficient according to a detection method of GB/T10294-2008; detecting the compressive strength according to a GB/T8813-2008 detection method; and (3) detecting the water absorption rate according to a detection method of GB/T8810-2008.
The adhesive strength is detected according to the detection method of GB/T7124-2008, and the base material: 10 aluminum alloy sheets of 25mm × 100mm × 2mm; b = 1; the gluing area is 12.5mm multiplied by 25mm; curing conditions are as follows: x 24h at 23 ℃; the number of samples is 5.
The dimensional stability is detected according to a detection method of GB/T8811-2008, and the dimensional stability is detected under the environmental conditions of-25 ℃,48h, 100 ℃ and 48h respectively.
According to the data in the table, the product has good heat insulation property after being cured, can effectively isolate heat conduction, can reach UL 94-V0-level flame retardant property after being cured, has water absorption of less than 0.5 percent after being cured, has lower water absorption after being cured by the comparative example 1 material without adding the super absorbent resin, but has prolonged curing time and no water stop function of secondary water absorption expansion; the product has the dimensional stability lower than 1% of the reference standard, has excellent durability, and can keep good physical and chemical properties in the service life.
The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are merely illustrative of the principles of the invention, but that various changes and modifications may be made without departing from the spirit and scope of the invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (9)
1. The water leakage-stopping type pipeline plugging foam material is characterized by comprising a two-component polyurethane foaming agent, wherein the two-component polyurethane foaming agent comprises a component A and a component B;
the component A comprises: 60-90 parts of polyether polyol, 10-30 parts of polymer polyol, 1-4 parts of catalyst, 1-3 parts of water, 1-4 parts of water repellent, 4-8 parts of SAP super absorbent resin, 30-50 parts of flame-retardant filler, 8-12 parts of melamine, 0.5-1.5 parts of foam stabilizer and 0.5-2 parts of perfluorohexanone;
the component B comprises: 60-90 parts of isocyanate.
2. The water leakage stopping type pipeline plugging foam material as claimed in claim 1, wherein the component A comprises: 80 parts of polyether polyol, 20 parts of polymer polyol, 1-3 parts of catalyst, 1-2 parts of water, 1-3 parts of water repellent, 4-6 parts of SAP super absorbent resin, 30-50 parts of flame-retardant filler, 8-12 parts of melamine, 0.5-1.5 parts of foam stabilizer and 0.5-1 part of perfluorohexanone;
the component B comprises: 80 parts of isocyanate.
3. The water leakage stopping type pipeline plugging foam material as claimed in claim 1, wherein the catalyst comprises one or a mixture of an amine catalyst and an organotin catalyst.
4. The water leakage-stopping type pipeline plugging foam material as claimed in claim 1 or 3, wherein the catalyst is prepared from an amine catalyst and an organic tin catalyst according to the following formula (2-4): 1, and the components are compounded according to the mass ratio.
5. The water-carrying leakage-stopping type pipeline plugging foam material as claimed in claim 3 or 4, wherein said amine catalyst is one or a mixture of more than two of triethylene diamine, tetramethyl ethylene diamine and dimethyl ethanol amine.
6. The water-carrying leakage-stopping type pipeline plugging foam material as claimed in claim 1, wherein the flame-retardant filler comprises expanded graphite, aluminum hydroxide and ammonium polyphosphate in a mass ratio of (0.5-1.5) to (1-3) to 1.
7. The water leakage stopping type pipe plugging foam material according to claim 1, wherein said isocyanate is one or more of toluene diisocyanate, diphenylmethane diisocyanate, pure MDI, carbodiimide modified MDI, MDI-50 and polymeric MDI I.
8. The water leakage stopping type pipeline plugging foam material according to claim 1 or 7, wherein the isocyanate is diphenylmethane diisocyanate.
9. The use method of the water leakage stopping type pipeline plugging foam material as claimed in claim 1, characterized by comprising the following steps:
(1) Adding the raw materials in the component A into stirring equipment according to the proportion for mixing, and dispersing and mixing for 20-60min by using a high-speed dispersion machine to obtain a component A;
(2) The mixed A component and B component are respectively filled into a two-component glue bottle according to a proportion, when in use, the two-component glue bottle is filled into a glue gun, and a mixed glue nozzle is filled into the glue bottle;
(3) When the double-component glue bottle is used, the components in the double-component glue bottle are injected into the power pipeline by using the glue gun, the injected materials are rapidly foamed, and the expansion is filled in each gap in the pipeline, so that the water-stopping sealing work is completed.
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Application publication date: 20221129 |