CN111454602A - Single-component polyurea putty applied to water prevention and leakage stoppage and preparation method - Google Patents
Single-component polyurea putty applied to water prevention and leakage stoppage and preparation method Download PDFInfo
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- CN111454602A CN111454602A CN202010336923.XA CN202010336923A CN111454602A CN 111454602 A CN111454602 A CN 111454602A CN 202010336923 A CN202010336923 A CN 202010336923A CN 111454602 A CN111454602 A CN 111454602A
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- China
- Prior art keywords
- putty
- component polyurea
- diisocyanate
- isocyanate
- polyurea
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- 229920002396 Polyurea Polymers 0.000 title claims abstract description 37
- 238000002360 preparation method Methods 0.000 title claims description 13
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title abstract description 18
- 230000002265 prevention Effects 0.000 title abstract description 17
- 239000012948 isocyanate Substances 0.000 claims abstract description 42
- 150000002513 isocyanates Chemical class 0.000 claims abstract description 42
- 150000001412 amines Chemical class 0.000 claims abstract description 19
- 239000012752 auxiliary agent Substances 0.000 claims abstract description 16
- 239000000945 filler Substances 0.000 claims abstract description 16
- 239000002904 solvent Substances 0.000 claims abstract description 16
- 229920005862 polyol Polymers 0.000 claims description 25
- 150000003077 polyols Chemical class 0.000 claims description 25
- 229920000642 polymer Polymers 0.000 claims description 20
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 10
- 238000010438 heat treatment Methods 0.000 claims description 10
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 claims description 9
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 claims description 8
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 8
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 claims description 8
- 239000007822 coupling agent Substances 0.000 claims description 7
- 239000002270 dispersing agent Substances 0.000 claims description 7
- 239000005056 polyisocyanate Substances 0.000 claims description 7
- 229920001228 polyisocyanate Polymers 0.000 claims description 7
- 238000009736 wetting Methods 0.000 claims description 7
- TZCXTZWJZNENPQ-UHFFFAOYSA-L barium sulfate Chemical compound [Ba+2].[O-]S([O-])(=O)=O TZCXTZWJZNENPQ-UHFFFAOYSA-L 0.000 claims description 6
- 239000004721 Polyphenylene oxide Substances 0.000 claims description 5
- 230000003712 anti-aging effect Effects 0.000 claims description 5
- 239000003795 chemical substances by application Substances 0.000 claims description 5
- 238000007599 discharging Methods 0.000 claims description 5
- 229910052757 nitrogen Inorganic materials 0.000 claims description 5
- 238000004806 packaging method and process Methods 0.000 claims description 5
- 229920000570 polyether Polymers 0.000 claims description 5
- 238000003756 stirring Methods 0.000 claims description 5
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 claims description 4
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims description 4
- KXBFLNPZHXDQLV-UHFFFAOYSA-N [cyclohexyl(diisocyanato)methyl]cyclohexane Chemical compound C1CCCCC1C(N=C=O)(N=C=O)C1CCCCC1 KXBFLNPZHXDQLV-UHFFFAOYSA-N 0.000 claims description 4
- 239000002518 antifoaming agent Substances 0.000 claims description 4
- 150000004658 ketimines Chemical class 0.000 claims description 4
- -1 polymethylene Polymers 0.000 claims description 4
- 229920006389 polyphenyl polymer Polymers 0.000 claims description 4
- 239000000377 silicon dioxide Substances 0.000 claims description 4
- 235000012239 silicon dioxide Nutrition 0.000 claims description 4
- 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 4
- FKTHNVSLHLHISI-UHFFFAOYSA-N 1,2-bis(isocyanatomethyl)benzene Chemical compound O=C=NCC1=CC=CC=C1CN=C=O FKTHNVSLHLHISI-UHFFFAOYSA-N 0.000 claims description 3
- 229910052582 BN Inorganic materials 0.000 claims description 3
- PZNSFCLAULLKQX-UHFFFAOYSA-N Boron nitride Chemical compound N#B PZNSFCLAULLKQX-UHFFFAOYSA-N 0.000 claims description 3
- 150000004705 aldimines Chemical class 0.000 claims description 3
- 238000001816 cooling Methods 0.000 claims description 3
- 150000002009 diols Chemical class 0.000 claims description 3
- FPAFDBFIGPHWGO-UHFFFAOYSA-N dioxosilane;oxomagnesium;hydrate Chemical compound O.[Mg]=O.[Mg]=O.[Mg]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O FPAFDBFIGPHWGO-UHFFFAOYSA-N 0.000 claims description 3
- 229920000728 polyester Polymers 0.000 claims description 3
- NNOZGCICXAYKLW-UHFFFAOYSA-N 1,2-bis(2-isocyanatopropan-2-yl)benzene Chemical compound O=C=NC(C)(C)C1=CC=CC=C1C(C)(C)N=C=O NNOZGCICXAYKLW-UHFFFAOYSA-N 0.000 claims description 2
- VZXPHDGHQXLXJC-UHFFFAOYSA-N 1,6-diisocyanato-5,6-dimethylheptane Chemical compound O=C=NC(C)(C)C(C)CCCCN=C=O VZXPHDGHQXLXJC-UHFFFAOYSA-N 0.000 claims description 2
- 229940008841 1,6-hexamethylene diisocyanate Drugs 0.000 claims description 2
- 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 2
- DKPFZGUDAPQIHT-UHFFFAOYSA-N Butyl acetate Natural products CCCCOC(C)=O DKPFZGUDAPQIHT-UHFFFAOYSA-N 0.000 claims description 2
- 239000005058 Isophorone diisocyanate Substances 0.000 claims description 2
- CTQNGGLPUBDAKN-UHFFFAOYSA-N O-Xylene Chemical compound CC1=CC=CC=C1C CTQNGGLPUBDAKN-UHFFFAOYSA-N 0.000 claims description 2
- 239000000440 bentonite Substances 0.000 claims description 2
- 229910000278 bentonite Inorganic materials 0.000 claims description 2
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 claims description 2
- 229910000019 calcium carbonate Inorganic materials 0.000 claims description 2
- RRAMGCGOFNQTLD-UHFFFAOYSA-N hexamethylene diisocyanate Chemical compound O=C=NCCCCCCN=C=O RRAMGCGOFNQTLD-UHFFFAOYSA-N 0.000 claims description 2
- FUZZWVXGSFPDMH-UHFFFAOYSA-N hexanoic acid Chemical compound CCCCCC(O)=O FUZZWVXGSFPDMH-UHFFFAOYSA-N 0.000 claims description 2
- NIMLQBUJDJZYEJ-UHFFFAOYSA-N isophorone diisocyanate Chemical compound CC1(C)CC(N=C=O)CC(C)(CN=C=O)C1 NIMLQBUJDJZYEJ-UHFFFAOYSA-N 0.000 claims description 2
- LLHKCFNBLRBOGN-UHFFFAOYSA-N propylene glycol methyl ether acetate Chemical compound COCC(C)OC(C)=O LLHKCFNBLRBOGN-UHFFFAOYSA-N 0.000 claims description 2
- 239000004408 titanium dioxide Substances 0.000 claims description 2
- 239000006097 ultraviolet radiation absorber Substances 0.000 claims description 2
- 239000008096 xylene Substances 0.000 claims description 2
- 238000004078 waterproofing Methods 0.000 claims 1
- 239000002250 absorbent Substances 0.000 description 3
- 230000002745 absorbent Effects 0.000 description 3
- 239000013530 defoamer Substances 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 2
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 229920002635 polyurethane Polymers 0.000 description 2
- 239000004814 polyurethane Substances 0.000 description 2
- BGYHLZZASRKEJE-UHFFFAOYSA-N [3-[3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoyloxy]-2,2-bis[3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoyloxymethyl]propyl] 3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoate Chemical compound CC(C)(C)C1=C(O)C(C(C)(C)C)=CC(CCC(=O)OCC(COC(=O)CCC=2C=C(C(O)=C(C=2)C(C)(C)C)C(C)(C)C)(COC(=O)CCC=2C=C(C(O)=C(C=2)C(C)(C)C)C(C)(C)C)COC(=O)CCC=2C=C(C(O)=C(C=2)C(C)(C)C)C(C)(C)C)=C1 BGYHLZZASRKEJE-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 239000004202 carbamide Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- MCPKSFINULVDNX-UHFFFAOYSA-N drometrizole Chemical compound CC1=CC=C(O)C(N2N=C3C=CC=CC3=N2)=C1 MCPKSFINULVDNX-UHFFFAOYSA-N 0.000 description 1
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000013008 moisture curing Methods 0.000 description 1
- 229920001451 polypropylene glycol Polymers 0.000 description 1
- 229920000909 polytetrahydrofuran Polymers 0.000 description 1
- 125000003944 tolyl group Chemical group 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/34—Filling pastes
-
- 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
- C08G18/10—Prepolymer processes involving reaction of isocyanates or isothiocyanates with compounds having active hydrogen in a first reaction step
-
- 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
- C08G18/42—Polycondensates having carboxylic or carbonic ester groups in the main chain
-
- 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
- C08G18/4825—Polyethers containing two hydroxy groups
-
- 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
- C08G18/4854—Polyethers containing oxyalkylene groups having four carbon atoms in the alkylene group
-
- 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
- C08G18/65—Low-molecular-weight compounds having active hydrogen with high-molecular-weight compounds having active hydrogen
- C08G18/66—Compounds of groups C08G18/42, C08G18/48, or C08G18/52
- C08G18/6666—Compounds of group C08G18/48 or C08G18/52
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
- Paints Or Removers (AREA)
- Sealing Material Composition (AREA)
Abstract
The invention discloses a single-component polyurea putty applied to water prevention and leakage stoppage, which comprises the following components in percentage by weight: 30-50% of isocyanate prepolymer, 4-20% of blocked amine, 30-50% of filler, 15-30% of solvent and 1-3% of auxiliary agent. The single-component polyurea putty provided by the invention can be applied to water prevention and leakage stoppage.
Description
Technical Field
The invention belongs to the technical field of materials, and particularly relates to a single-component polyurea putty applied to water prevention and leakage stoppage and a preparation method thereof.
Background
Most of putty in the current market is dual-component putty, and because the viscosity of the putty is relatively high, the putty is mostly prepared by hand, and the problem of uneven ratio exists in the actual construction process, so that the engineering defect is caused. The single-component polyurethane has the problems of insufficient mechanical property and corrosion resistance.
Disclosure of Invention
The invention aims to provide the single-component polyurea putty applied to water prevention and leakage stoppage, which can be applied to water prevention and leakage stoppage.
The invention is realized by the following technical scheme:
the invention provides a single-component polyurea putty applied to water prevention and leakage stoppage, which comprises the following components in percentage by weight: 30-50% of isocyanate prepolymer, 4-20% of blocked amine, 30-50% of filler, 15-30% of solvent and 1-3% of auxiliary agent.
Optionally, the isocyanate prepolymer is synthesized from an isocyanate and a polymer polyol.
Optionally, the isocyanate prepolymer has an — NCO content of 3 to 10%.
Optionally, the isocyanate is one or more of polymethylene polyphenyl polyisocyanate, toluene diisocyanate, diphenylmethane diisocyanate, 1, 6-hexamethylene diisocyanate, isophorone diisocyanate, xylylene diisocyanate, trimethyl hexamethylene diisocyanate, methylcyclohexyl diisocyanate, dicyclohexylmethane diisocyanate, and tetramethylxylylene diisocyanate.
Optionally, the polymer polyol is one or more of polyether polyol and polyester diol;
the molecular weight of the polymer polyol is 800-.
Optionally, the blocked amine is one or more of ketimine or aldimine.
Optionally, the filler is at least one of organic bentonite, talcum powder, titanium dioxide, barium sulfate, superfine calcium carbonate, silicon dioxide and boron nitride.
Optionally, the auxiliary agent is at least one of a wetting dispersant, a defoaming agent, a coupling agent, an anti-aging agent and an ultraviolet absorber.
Optionally, the solvent is at least one of toluene, xylene, ethyl acetate, butyl acetate, acetone, and propylene glycol methyl ether acetate.
The invention also provides a preparation method of the single-component polyurea putty applied to water prevention and leakage stoppage, which comprises the following steps:
preparation of isocyanate prepolymer: heating polymer polyol to the temperature of 100-120 ℃, vacuumizing and dehydrating for 1-2 hours, filling nitrogen and cooling to room temperature, adding metered isocyanate, heating to the temperature of 60-90 ℃, preserving heat and stirring, and reacting for 2-5 hours;
preparing the single-component polyurea putty: adding blocked amine, a solvent, a filler and an auxiliary agent into the isocyanate prepolymer, dispersing for 1-2h at 60-90 ℃, discharging and packaging to obtain the single-component polyurea putty.
The invention has the beneficial effects that:
1. the single-component polyurea putty is applied to water prevention and leakage stoppage, and can be applied to water prevention and leakage stoppage.
2. The single-component putty is convenient to construct and stable in quality.
3. In the embodiment of the invention, the urea bond in the single-component polyurea is more stable than the urethane bond, so that the mechanical property and the corrosion resistance of the material are better than those of the single-component polyurethane.
4. In the embodiment of the invention, the single-component polyurea contains the blocked amine, the blocked amine reacts with water to produce amine, and then reacts with isocyanate, so that the generation of bubbles is reduced in moisture curing, and the material is more compact and has better performance.
Detailed Description
The technical solutions in the embodiments of the present invention are clearly and completely described below, and it is obvious that the described embodiments are only a part of the present invention, and not all embodiments. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, belong to the scope of the present invention.
Example 1
The embodiment 1 of the invention provides a single-component polyurea putty applied to water prevention and leakage stoppage, which comprises the following components in percentage by weight: 30% of isocyanate prepolymer, 15% of blocked amine, 35% of filler, 17% of solvent and 3% of auxiliary agent.
The isocyanate prepolymer is synthesized from an isocyanate and a polymer polyol.
The isocyanate prepolymer had an — NCO content of 3%.
The isocyanate is polyisocyanate, and specifically comprises the following components: polymethylene polyphenyl polyisocyanate, toluene diisocyanate, dicyclohexylmethane diisocyanate.
The polymer polyol is polyether polyol, and is specifically polypropylene glycol.
The molecular weight of the polymer polyol is 1000.
The blocked amine is ketimine.
The filler comprises: organobentonite and silicon dioxide in a ratio of 1: 1.2.
The auxiliary agent comprises: wetting dispersant, defoaming agent, coupling agent, anti-aging agent and ultraviolet absorbent. The wetting dispersant, the defoamer, the coupling agent, the anti-aging agent and the ultraviolet absorbent are BYK333, BYK067A, KH560, Irganox1010 and Tinuvin P respectively.
The solvent is toluene.
A preparation method of the single-component polyurea putty applied to water prevention and leakage stoppage comprises the following steps:
preparation of isocyanate prepolymer: heating polymer polyol to 100 ℃, vacuumizing and dehydrating for 1 hour, filling nitrogen to cool to room temperature, adding metered isocyanate, heating to 60 ℃, preserving heat and stirring, and reacting for 2 hours;
preparing the single-component polyurea putty: and (3) sequentially adding blocked amine, a solvent, a filler and an auxiliary agent into the isocyanate prepolymer, dispersing for 1h at 60 ℃, discharging and packaging to obtain the single-component polyurea putty.
Example 2
The embodiment 2 of the invention provides a single-component polyurea putty applied to water prevention and leakage stoppage, which comprises the following components in percentage by weight: 50% of isocyanate prepolymer, 4% of blocked amine, 30% of filler, 15% of solvent and 1% of auxiliary agent.
The isocyanate prepolymer is synthesized from an isocyanate and a polymer polyol.
The isocyanate prepolymer had an NCO content of 10%.
The isocyanate is polyisocyanate, and specifically comprises the following components: polymethylene polyphenyl polyisocyanate, dicyclohexylmethane diisocyanate.
The polymer polyol is: a polyester diol;
the molecular weight of the polymer polyol is 1000.
The blocking amine is: an aldimine.
The filler comprises: talc powder and barium sulfate.
The auxiliary agent comprises: wetting dispersant, defoamer and coupling agent in a ratio of 1:1.5: 1. The wetting dispersant, the defoamer and the coupling agent are BYK333, BYK067A and KH560 respectively.
The solvent is adopted as follows: acetone.
A preparation method of the single-component polyurea putty applied to water prevention and leakage stoppage comprises the following steps:
preparation of isocyanate prepolymer: heating polymer polyol to 120 ℃, vacuumizing and dehydrating for 2 hours, filling nitrogen to cool to room temperature, adding metered isocyanate, heating to 90 ℃, preserving heat and stirring, and reacting for 5 hours;
preparing the single-component polyurea putty: and (3) sequentially adding blocked amine, a solvent, a filler and an auxiliary agent into the isocyanate prepolymer, dispersing for 2 hours at 90 ℃, discharging and packaging to obtain the single-component polyurea putty.
Example 3
The embodiment 2 of the invention provides a single-component polyurea putty applied to water prevention and leakage stoppage, which comprises the following components in percentage by weight: 40% of isocyanate prepolymer, 10% of blocked amine, 30% of filler, 17% of solvent and 3% of auxiliary agent.
The isocyanate prepolymer is synthesized from an isocyanate and a polymer polyol.
The isocyanate prepolymer had an NCO content of 7%.
The isocyanate is polyisocyanate, and specifically comprises the following components: toluene diisocyanate, xylylene diisocyanate; the ratio is 1: 0.8.
The polymer polyol is: a polyether polyol; the polyether polyol is polytetrahydrofuran ether glycol.
The molecular weight of the polymer polyol is 2000.
The blocked amine is adopted as follows: a ketimine.
The filler is prepared by the following steps: silicon dioxide, boron nitride; the ratio is 1: 0.8.
The auxiliary agent is prepared from the following components: at least one of wetting dispersant, defoaming agent, coupling agent, anti-aging agent and ultraviolet absorbent.
The adopted solvent is as follows: and (3) ethyl acetate.
A preparation method of the single-component polyurea putty applied to water prevention and leakage stoppage comprises the following steps:
preparation of isocyanate prepolymer: heating polymer polyol to 110 ℃, vacuumizing and dehydrating for 1.5 hours, filling nitrogen, cooling to room temperature, adding metered isocyanate, heating to 80 ℃, preserving heat and stirring, and reacting for 3 hours;
preparing the single-component polyurea putty: and (3) sequentially adding blocked amine, a solvent, a filler and an auxiliary agent into the isocyanate prepolymer, dispersing for 1.5h at 70 ℃, discharging and packaging to obtain the single-component polyurea putty.
The experimental results are as follows:
the embodiment of the invention is subjected to experimental tests, and the experimental results are as follows:
the foregoing is considered as illustrative of the preferred embodiments of the invention and is not to be construed as limiting the invention in any way. Although the present invention has been described with reference to the preferred embodiments, it is not intended to be limited thereto. Therefore, any simple modification, equivalent change and modification made to the above embodiments according to the technical spirit of the present invention should fall within the protection scope of the technical scheme of the present invention, unless the technical spirit of the present invention departs from the content of the technical scheme of the present invention.
Claims (10)
1. The single-component polyurea putty is characterized by comprising the following components in percentage by weight: 30-50% of isocyanate prepolymer, 4-20% of blocked amine, 30-50% of filler, 15-30% of solvent and 1-3% of auxiliary agent.
2. The one-part polyurea putty according to claim 1 characterized in that the isocyanate prepolymer is synthesized from isocyanate and polymer polyol.
3. The one-component polyurea putty according to claim 1 characterised in that the isocyanate prepolymer has an-NCO content of 3-10%.
4. The one-component polyurea putty according to claim 1 wherein the isocyanate is one or more of polymethylene polyphenyl polyisocyanate, toluene diisocyanate, diphenylmethane diisocyanate, 1, 6-hexamethylene diisocyanate, isophorone diisocyanate, xylylene diisocyanate, trimethylhexamethylene diisocyanate, methylcyclohexyl diisocyanate, dicyclohexylmethane diisocyanate, and tetramethylxylylene diisocyanate.
5. The one-component polyurea putty according to claim 1 characterized in that the polymer polyol is one or more of polyether polyol and polyester diol;
the molecular weight of the polymer polyol is 800-.
6. The one-component polyurea putty according to claim 1 characterised in that the blocked amine is one or more of a ketimine or an aldimine.
7. The one-component polyurea putty according to claim 1, wherein the filler is at least one of organic bentonite, talcum powder, titanium dioxide, barium sulfate, superfine calcium carbonate, silicon dioxide and boron nitride.
8. The one-component polyurea putty as set forth in claim 1 wherein the auxiliary agent is at least one of a wetting dispersant, an antifoaming agent, a coupling agent, an anti-aging agent, and an ultraviolet absorber.
9. The one-component polyurea putty as set forth in claim 1 wherein the solvent is at least one of toluene, xylene, ethyl acetate, butyl acetate, acetone, propylene glycol methyl ether acetate.
10. The preparation method of the one-component polyurea putty applied to water proofing and leakage stopping according to any one of claims 1 to 9 is characterized by comprising the following steps:
preparation of isocyanate prepolymer: heating polymer polyol to the temperature of 100-120 ℃, vacuumizing and dehydrating for 1-2 hours, filling nitrogen and cooling to room temperature, adding metered isocyanate, heating to the temperature of 60-90 ℃, preserving heat and stirring, and reacting for 2-5 hours;
preparing the single-component polyurea putty: adding blocked amine, a solvent, a filler and an auxiliary agent into the isocyanate prepolymer, dispersing for 1-2h at 60-90 ℃, discharging and packaging to obtain the single-component polyurea putty.
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| CN115044187A (en) * | 2022-06-22 | 2022-09-13 | 广东安拓普聚合物科技有限公司 | Preparation method of oil-soluble polyurethane plugging agent |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109354986A (en) * | 2018-11-11 | 2019-02-19 | 浙江锦丰新材料科技有限公司 | A kind of preparation method of quick-dry type one pack system aliphatic Polyurea paint |
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| CN109354986A (en) * | 2018-11-11 | 2019-02-19 | 浙江锦丰新材料科技有限公司 | A kind of preparation method of quick-dry type one pack system aliphatic Polyurea paint |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115044187A (en) * | 2022-06-22 | 2022-09-13 | 广东安拓普聚合物科技有限公司 | Preparation method of oil-soluble polyurethane plugging agent |
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