CN113683997A - Polyurethane pouring sealant for protecting rotor coating of wind driven generator and preparation method thereof - Google Patents
Polyurethane pouring sealant for protecting rotor coating of wind driven generator and preparation method thereof Download PDFInfo
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- CN113683997A CN113683997A CN202111063198.4A CN202111063198A CN113683997A CN 113683997 A CN113683997 A CN 113683997A CN 202111063198 A CN202111063198 A CN 202111063198A CN 113683997 A CN113683997 A CN 113683997A
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- 239000000565 sealant Substances 0.000 title claims abstract description 25
- 229920002635 polyurethane Polymers 0.000 title claims abstract description 23
- 239000004814 polyurethane Substances 0.000 title claims abstract description 23
- 239000011248 coating agent Substances 0.000 title claims abstract description 17
- 238000000576 coating method Methods 0.000 title claims abstract description 17
- 238000002360 preparation method Methods 0.000 title claims abstract description 11
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 claims abstract description 60
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 36
- 229920005862 polyol Polymers 0.000 claims abstract description 34
- 150000003077 polyols Chemical class 0.000 claims abstract description 34
- 229910000019 calcium carbonate Inorganic materials 0.000 claims abstract description 30
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 17
- 239000002318 adhesion promoter Substances 0.000 claims abstract description 15
- 239000000203 mixture Substances 0.000 claims abstract description 15
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims abstract description 14
- 239000011347 resin Substances 0.000 claims abstract description 14
- 229920005989 resin Polymers 0.000 claims abstract description 14
- 239000002270 dispersing agent Substances 0.000 claims abstract description 13
- 239000000843 powder Substances 0.000 claims abstract description 13
- 238000009736 wetting Methods 0.000 claims abstract description 13
- 239000002518 antifoaming agent Substances 0.000 claims abstract description 12
- 238000003756 stirring Methods 0.000 claims abstract description 12
- 239000004094 surface-active agent Substances 0.000 claims abstract description 12
- 239000004408 titanium dioxide Substances 0.000 claims abstract description 7
- 238000002156 mixing Methods 0.000 claims abstract description 6
- 239000012752 auxiliary agent Substances 0.000 claims abstract description 4
- 239000006185 dispersion Substances 0.000 claims abstract description 4
- 239000000945 filler Substances 0.000 claims abstract description 4
- 238000000034 method Methods 0.000 claims abstract description 4
- 239000000853 adhesive Substances 0.000 claims description 16
- 230000001070 adhesive effect Effects 0.000 claims description 16
- 239000004721 Polyphenylene oxide Substances 0.000 claims description 11
- 229920000570 polyether Polymers 0.000 claims description 11
- 239000004359 castor oil Substances 0.000 claims description 9
- 235000019438 castor oil Nutrition 0.000 claims description 9
- 238000001035 drying Methods 0.000 claims description 9
- ZEMPKEQAKRGZGQ-XOQCFJPHSA-N glycerol triricinoleate Natural products CCCCCC[C@@H](O)CC=CCCCCCCCC(=O)OC[C@@H](COC(=O)CCCCCCCC=CC[C@@H](O)CCCCCC)OC(=O)CCCCCCCC=CC[C@H](O)CCCCCC ZEMPKEQAKRGZGQ-XOQCFJPHSA-N 0.000 claims description 9
- 239000002994 raw material Substances 0.000 claims description 6
- WYNCHZVNFNFDNH-UHFFFAOYSA-N Oxazolidine Chemical compound C1COCN1 WYNCHZVNFNFDNH-UHFFFAOYSA-N 0.000 claims description 5
- VLJQDHDVZJXNQL-UHFFFAOYSA-N 4-methyl-n-(oxomethylidene)benzenesulfonamide Chemical compound CC1=CC=C(S(=O)(=O)N=C=O)C=C1 VLJQDHDVZJXNQL-UHFFFAOYSA-N 0.000 claims description 3
- 229920013702 Dow VORANOL™ CP 755 Polyol Polymers 0.000 claims description 3
- 229920013701 VORANOL™ Polymers 0.000 claims description 3
- 239000003292 glue Substances 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 239000002245 particle Substances 0.000 claims description 3
- 239000004744 fabric Substances 0.000 claims description 2
- 239000003365 glass fiber Substances 0.000 claims description 2
- 125000002887 hydroxy group Chemical group [H]O* 0.000 claims description 2
- 238000004382 potting Methods 0.000 claims description 2
- 150000005846 sugar alcohols Polymers 0.000 claims description 2
- 235000004443 Ricinus communis Nutrition 0.000 claims 2
- 238000005266 casting Methods 0.000 claims 2
- 239000007789 gas Substances 0.000 claims 1
- QJGQUHMNIGDVPM-UHFFFAOYSA-N nitrogen group Chemical group [N] QJGQUHMNIGDVPM-UHFFFAOYSA-N 0.000 claims 1
- 238000004321 preservation Methods 0.000 claims 1
- 230000007547 defect Effects 0.000 description 3
- 239000006087 Silane Coupling Agent Substances 0.000 description 2
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 2
- 239000007822 coupling agent Substances 0.000 description 2
- 238000005538 encapsulation Methods 0.000 description 2
- 238000003912 environmental pollution Methods 0.000 description 2
- 238000011049 filling Methods 0.000 description 2
- 239000002808 molecular sieve Substances 0.000 description 2
- 239000003960 organic solvent Substances 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- URGAHOPLAPQHLN-UHFFFAOYSA-N sodium aluminosilicate Chemical compound [Na+].[Al+3].[O-][Si]([O-])=O.[O-][Si]([O-])=O URGAHOPLAPQHLN-UHFFFAOYSA-N 0.000 description 2
- RYYKJJJTJZKILX-UHFFFAOYSA-M sodium octadecanoate Chemical compound [Na+].CCCCCCCCCCCCCCCCCC([O-])=O RYYKJJJTJZKILX-UHFFFAOYSA-M 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000012790 adhesive layer Substances 0.000 description 1
- 239000010410 layer Substances 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
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J175/00—Adhesives based on polyureas or polyurethanes; Adhesives based on derivatives of such polymers
- C09J175/04—Polyurethanes
- C09J175/14—Polyurethanes having carbon-to-carbon unsaturated bonds
-
- 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
- C08G18/30—Low-molecular-weight compounds
- C08G18/36—Hydroxylated esters of higher fatty acids
-
- 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
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
- C09J11/02—Non-macromolecular additives
- C09J11/06—Non-macromolecular additives organic
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
- C09J11/08—Macromolecular additives
-
- 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
- C08G2170/00—Compositions for adhesives
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/24—Acids; Salts thereof
- C08K3/26—Carbonates; Bicarbonates
- C08K2003/265—Calcium, strontium or barium carbonate
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Sealing Material Composition (AREA)
- Paints Or Removers (AREA)
Abstract
The invention relates to a polyurethane pouring sealant for protecting a rotor coating of a wind driven generator, which comprises A, B two components, wherein the A component comprises resin, a filler and an auxiliary agent, the B component is a curing agent, and the weight ratio of the A, B component to the curing agent is 100: 30. the method for preparing the polyurethane pouring sealant for protecting the rotor coating of the wind driven generator comprises the following steps: preparation of component A: taking 45-55 parts of polyol, 0.5-2 parts of surfactant, 0.1-1 part of wetting dispersant, 0.1-1 part of flatting agent, 0.1-1 part of adhesion promoter and 0.1-1 part of defoaming agent, fully stirring and uniformly mixing. And then adding 30-40 parts of calcium carbonate powder, 1-5 parts of titanium dioxide and 5-10 parts of a water removing agent, and fully dispersing by using a high-speed dispersion machine. After being dispersed evenly, the mixture is stirred in vacuum to obtain a component A; preparation of the component B: and (3) taking 1-3 parts of dry water removing agent and 1-5097-99 parts of MDI, and stirring in vacuum to obtain the component B.
Description
Technical Field
The invention belongs to the field of bi-component polyurethane adhesives, and particularly relates to a polyurethane pouring sealant for protecting a rotor coating of a wind driven generator and a preparation method thereof.
Background
The traditional two-component polyurethane pouring sealant has relatively poor mechanical properties, relatively low hardness, tensile strength, impact strength and tensile shear strength at normal temperature, and relatively large volume shrinkage; and the pot life is short when the filling and sealing device is used at normal temperature, and the requirement of the operation time required by filling and sealing can not be completely met. In addition, bubbles and air holes are easy to appear on the adhesive layer after the existing potting adhesive is cured; in addition, the existing pouring sealant has low waterproof performance and is easy to be corroded by moisture when being used for offshore wind power. The traditional two-component polyurethane pouring sealant contains volatile organic solvent, and has potential physical threat and environmental pollution in use.
Disclosure of Invention
The invention aims to provide a polyurethane pouring sealant for protecting a rotor coating of a wind driven generator and a preparation method thereof, aiming at the defects in the prior art.
Therefore, the above purpose of the invention is realized by the following technical scheme:
the polyurethane pouring sealant for protecting the rotor coating of the wind driven generator comprises A, B two components, wherein the A component is resin, filler, auxiliary agent and the like, the B component is a curing agent, and the mass ratio of the A, B component to the mixed component is 100: 30.
the component A comprises the following raw materials in parts by mass:
45-55 parts of polyol;
30-40 parts of calcium carbonate;
1-5 parts of titanium dioxide;
5-10 parts of a water removing agent;
0.5-2 parts of a surfactant;
0.1-1 part of wetting dispersant;
0.1-1 part of a leveling agent;
0.1-1 part of adhesion promoter;
0.1-1 part of defoaming agent;
the component B comprises the following raw materials in parts by mass:
1: 1 mixture (MDI-50): 97-99 parts;
1-3 parts of a drying and water removing agent.
Further, the polyol is a mixture of polyether polyol and castor oil modified polyol, and the ratio of the polyether polyol to the castor oil modified polyol is 1: 0.5-1.5; wherein the polyether polyol is one of polyether polyols VORANOL 225, VORANOL CP755 and VORANOL3000LM produced by Dow; the castor oil modified polyol is one of castor oil modified polyols Polycin D-290, Caspol 5001 and Polycin GR-35 produced by Vanderue; the hydroxyl value of the resin is adjusted by matching the polyhydric alcohol, so that the strength and the performance of the cured resin are improved.
The calcium carbonate is heavy calcium carbonate powder with the particle size of 500-2000 meshes.
The water removing agent is one or a mixture of two of a molecular sieve and oxazolidine.
The surfactant is one of silane coupling agent KH 5705%, titanate coupling agent 2% and sodium stearate 3%. The surface of the heavy calcium carbonate can be activated by the surfactant, so that the surface polarity of the heavy calcium carbonate is reduced, the lipophilicity of the heavy calcium carbonate is increased, and the dispersibility of the heavy calcium carbonate in resin is improved.
The wetting dispersant is one of disperbYK-169, BYK-W909 and BYK-W961 produced by Pico. The wetting dispersant can improve the wettability of the surface of the calcium carbonate powder, so that the calcium carbonate powder can be better dispersed in the resin.
The leveling agent is one of leveling agents Levaslip 431, Levaslip 810 and Levaslip 875 produced by Hamming. By adding the leveling agent, the surface tension of the adhesive can be effectively reduced, the leveling performance of the adhesive is improved, the surface of the cured adhesive is smooth and uniform, and the defects of pinholes, craters and the like are avoided.
The adhesion promoter is one of adhesion promoters Adherant 1121 and Adherant ADP produced by Haimines. The adhesive strength between the glass fiber cloth and the base material can be improved through the selection of the adhesion promoter.
The defoaming agent is one of defoaming agents BYK-054, BYK-1797, BYK-A501 and BYK-A535 produced by Pico.
The MDI-50 is one of WANNATE MDI-50 or MDI-50F produced by Wanhua chemistry; MDI-50 is easy to crystallize at low temperature, so the MDI-50 needs to be stored in an oven at 25 ℃.
The drying and water removing agent is one of oxazolidine and p-toluenesulfonyl isocyanate.
A method for preparing the polyurethane pouring sealant for protecting the rotor coating of the wind driven generator comprises the following steps:
1. preparation of component A: taking 45-55 parts of polyol, 0.5-2 parts of surfactant, 0.1-1 part of wetting dispersant, 0.1-1 part of flatting agent, 0.1-1 part of adhesion promoter and 0.1-1 part of defoaming agent, fully stirring and uniformly mixing. And then adding 30-40 parts of calcium carbonate powder, 1-5 parts of titanium dioxide and 5-10 parts of a water removing agent, and fully dispersing by using a high-speed dispersion machine.
After being dispersed evenly, the mixture is poured into a three-neck flask and stirred for 90 to 150min under vacuum degree of less than-0.1 MPa and at the temperature of between 80 and 120 ℃ to obtain a component A;
2. preparation of the component B: taking MDI-5097-99 parts and drying dehydrator 1-3 parts, and stirring under vacuum degree of-0.1 MPa and 60-80 deg.C for 30-60min to obtain component B;
3. before use, the A, B components are placed at 25 ℃ and kept warm for more than 2h, and the weight ratio is 100: 30, and stirring the mixture properly to obtain the polyurethane pouring sealant for protecting the rotor coating of the wind driven generator.
Compared with the prior art. The invention has the following advantages:
1. the invention relates to a two-component polyurethane adhesive, which is prepared by mixing A, B two components in a mass ratio of 100: 30 and then uniformly stirring the mixture for use. A. The component B is cured after being mixed, can be approximately cured and molded after 48 hours at normal temperature and bear moderate stress, and can be completely cured after being cured in an oven at 80 ℃ for 5 hours. The pouring sealant after complete curing has excellent mechanical property, and the hardness of the pouring sealant is at 25 DEG C>80D, tensile Strength>50MPa, impact strength>30kJ/m2Tensile shear strength>30MPa, volume shrinkage<2 percent; and pot life at 25 ℃>90min, can meet the requirement of the operation time required by encapsulation.
2. The solidified glue layer has no bubbles and air holes, and the encapsulation material is tightly protected; in addition, the cured pouring sealant also has excellent waterproof performance, the water absorption rate of the pouring sealant is less than 0.3 percent and far less than 1 percent required by the standard, and the pouring sealant can effectively protect the pouring sealant from being corroded by moisture in practical application, particularly in offshore wind power application.
3. Compared with the traditional two-component polyurethane pouring sealant, the two-component adhesive disclosed by the invention does not contain volatile organic solvents, so that potential physical threats and environmental pollution in use are avoided.
Detailed Description
The present invention will be further described with reference to the following examples.
The invention relates to a polyurethane pouring sealant for protecting a rotor coating of a wind driven generator, which comprises A, B two components, wherein the A component is resin, a filler and an auxiliary agent, the B component is a curing agent, and the mass ratio of the A, B component to the mixed component is 100: 30.
the component A comprises the following raw materials in parts by mass:
45-55 parts of polyol;
30-40 parts of calcium carbonate;
1-5 parts of titanium dioxide;
5-10 parts of a water removing agent;
0.5-2 parts of a surfactant;
0.1-1 part of wetting dispersant;
0.1-1 part of a leveling agent;
0.1-1 part of adhesion promoter;
0.1-1 part of defoaming agent;
the component B comprises the following raw materials in parts by mass:
1: 1 mixture (MDI-50): 97-99 parts;
1-3 parts of a drying and water removing agent.
Further, the polyol is a mixture of polyether polyol and castor oil modified polyol, and the ratio of the polyether polyol to the castor oil modified polyol is 1: 0.5-1.5; wherein the polyether polyols are VORANOL 225, VORANOL CP755, VORANOL3000LM available from Dow; the castor oil modified polyol is Polycin D-290, Caspol 5001 and Polycin GR-35 produced by Vanderuss, USA; the polyol is matched, so that not only can excellent operation time be obtained, but also higher bonding strength can be obtained.
The calcium carbonate is heavy calcium carbonate powder with the particle size of 500-2000 meshes.
The water removing agent is one or a mixture of two of a molecular sieve and oxazolidine.
The surfactant is one of silane coupling agent KH 5705%, titanate coupling agent 2% and sodium stearate 3%. The surface of the heavy calcium carbonate can be activated by the surfactant, so that the surface polarity of the heavy calcium carbonate is reduced, the lipophilicity of the heavy calcium carbonate is increased, and the dispersibility of the heavy calcium carbonate in resin is improved.
The wetting dispersant is one of DISPERBYK-169, BYK-W909 and BYK-W961 produced by Pico. The wetting dispersant can improve the wettability of the surface of the calcium carbonate powder, so that the calcium carbonate powder can be better dispersed in the resin.
The leveling agent is one of Levaslip 431, Levaslip 810 and Levaslip 875 produced by Hamming. By adding the leveling agent, the surface tension of the adhesive can be effectively reduced, the leveling performance of the adhesive is improved, the surface of the cured adhesive is smooth and uniform, and the defects of pinholes, craters and the like are avoided.
The adhesion promoter is one of Adherant 1121 and Adherant ADP produced by Haimines. The adhesion promoter can not only improve the normal temperature adhesion strength, but also greatly improve the high temperature adhesion strength.
The defoaming agent is one of BYK-054, BYK-1797, BYK-A501 and BYK-A535 produced by Pico.
The MDI-50 is one of WANNATE MDI-50 or MDI-50F produced by Wanhua chemistry; MDI-50 is easy to crystallize at low temperature, so the MDI-50 needs to be stored in an oven at 25 ℃.
The drying and water removing agent is one of oxazolidine and p-toluenesulfonyl isocyanate.
A method for preparing the polyurethane pouring sealant for protecting the rotor coating of the wind driven generator comprises the following steps:
1. preparation of component A: taking 45-55 parts of polyol, 0.5-2 parts of surfactant, 0.1-1 part of wetting dispersant, 0.1-1 part of flatting agent, 0.1-1 part of adhesion promoter and 0.1-1 part of defoaming agent, fully stirring and uniformly mixing. And then adding 30-40 parts of calcium carbonate powder, 1-5 parts of titanium dioxide and 5-10 parts of a water removing agent, and fully dispersing by using a high-speed dispersion machine.
After being dispersed evenly, the mixture is poured into a three-neck flask and stirred for 90 to 150min under vacuum degree of less than-0.1 MPa and at the temperature of between 80 and 120 ℃ to obtain a component A;
2. preparation of the component B: taking MDI-5097-99 parts and drying dehydrator 1-3 parts, and stirring under vacuum degree of-0.1 MPa and 60-80 deg.C for 30-60min to obtain component B;
3. before use, the A, B components are placed at 25 ℃ and kept warm for more than 2h, and the weight ratio is 100: 30, and stirring the mixture properly to obtain the polyurethane pouring sealant for protecting the rotor coating of the wind driven generator.
Claims (4)
1. The utility model provides a polyurethane casting glue for protection of aerogenerator rotor coating, its characterized in that polyurethane casting glue include A, B binary components, wherein A component includes resin, filler, auxiliary agent, B component is the curing agent, the mass ratio when A, B component mixes is 100: 30, of a nitrogen-containing gas;
the component A comprises the following raw materials in parts by mass:
45-55 parts of polyol;
30-40 parts of calcium carbonate;
1-5 parts of titanium dioxide;
5-10 parts of a water removing agent;
0.5-2 parts of a surfactant;
0.1-1 part of wetting dispersant;
0.1-1 part of a leveling agent;
0.1-1 part of adhesion promoter;
0.1-1 part of defoaming agent;
the component B comprises the following raw materials in parts by mass:
1: 1 mixture, i.e. MDI-50: 97-99 parts;
1-3 parts of a drying and water removing agent.
2. The polyurethane pouring sealant for protecting the rotor coating of the wind driven generator as claimed in claim 1, wherein the polyol is a mixture of polyether polyol and castor oil-modified polyol, and the mass ratio of the polyol to the polyether polyol to the castor oil-modified polyol is 1: 0.5-1.5.
3. The polyurethane potting adhesive for protecting a rotor coating of a wind turbine generator as claimed in claim 1, wherein the polyether polyol is one of dow-produced polyether polyols VORANOL 225, VORANOL CP755, and VORANOL3000 LM; the castor oil modified polyol is one of castor oil modified polyols Polycin D-290, Caspol 5001 and Polycin GR-35 produced by Vanderue; the hydroxyl value of the resin is adjusted by the matching of the polyhydric alcohol, so that the strength and the performance of the cured resin are improved.
The calcium carbonate is ground calcium carbonate powder with the particle size of 500-2000 meshes, and the surface of the ground calcium carbonate is activated by a surfactant, so that the surface polarity of the ground calcium carbonate is reduced, the lipophilicity is increased, and the dispersibility of the ground calcium carbonate in resin is improved;
the wetting dispersant is one of disperbYK-169, BYK-W909 and BYK-W961 produced by Pico; the wetting dispersant is used for improving the wettability of the surface of the calcium carbonate powder so that the calcium carbonate powder is better dispersed in the resin;
the leveling agent is one of leveling agents Levaslip 431, Levaslip 810 and Levaslip 875 produced by Hamming; by adding the leveling agent, the surface tension of the adhesive can be effectively reduced, the leveling performance of the adhesive is improved, and the surface of the adhesive is smooth and uniform after being cured without pinholes or craters;
the adhesion promoter is one of adhesion promoters Adherant 1121 and Adherant ADP produced by Haimines; the adhesive strength between the glass fiber cloth and the base material is improved through the selection of the adhesion promoter;
the defoaming agent is one of defoaming agents BYK-054, BYK-1797, BYK-A501 and BYK-A535 produced by Pico;
the MDI-50 is one of MDI-50WANNATE MDI-50 or MDI-50F produced by Wanhua chemistry; MDI-50 is easy to crystallize at low temperature, so the MDI-50 needs to be stored in an oven at 25 ℃;
the drying and water removing agent is one of oxazolidine and p-toluenesulfonyl isocyanate.
4. A method for preparing the polyurethane pouring sealant for protecting the rotor coating of the wind driven generator comprises the following steps:
1) and preparation of the component A: taking 45-55 parts of polyol, 0.5-2 parts of surfactant, 0.1-1 part of wetting dispersant, 0.1-1 part of flatting agent, 0.1-1 part of adhesion promoter and 0.1-1 part of defoaming agent, fully stirring and uniformly mixing; then adding 30-40 parts of calcium carbonate powder, 1-5 parts of titanium dioxide and 5-10 parts of a water removing agent, and fully dispersing by using a high-speed dispersion machine;
after being dispersed evenly, the mixture is poured into a three-neck flask and stirred for 90 to 150min under vacuum degree of less than-0.1 MPa and at the temperature of between 80 and 120 ℃ to obtain a component A;
2) and preparing a component B: taking MDI-5097-99 parts and drying dehydrator 1-3 parts, and stirring under vacuum degree of-0.1 MPa and 60-80 deg.C for 30-60min to obtain component B;
3) placing the A, B component at 25 ℃ for heat preservation for more than 2h before use, and mixing the components in a mass ratio of 100: 30, and stirring to obtain the polyurethane pouring sealant for protecting the rotor coating of the wind driven generator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111063198.4A CN113683997A (en) | 2021-09-10 | 2021-09-10 | Polyurethane pouring sealant for protecting rotor coating of wind driven generator and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111063198.4A CN113683997A (en) | 2021-09-10 | 2021-09-10 | Polyurethane pouring sealant for protecting rotor coating of wind driven generator and preparation method thereof |
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| Publication Number | Publication Date |
|---|---|
| CN113683997A true CN113683997A (en) | 2021-11-23 |
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|---|---|---|---|
| CN202111063198.4A Pending CN113683997A (en) | 2021-09-10 | 2021-09-10 | Polyurethane pouring sealant for protecting rotor coating of wind driven generator and preparation method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023155400A1 (en) * | 2022-02-17 | 2023-08-24 | 道生天合材料科技(上海)股份有限公司 | Polyurethane potting adhesive |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109468113A (en) * | 2017-09-08 | 2019-03-15 | 烟台德邦科技有限公司 | Pouring sealant for coating protection of wind driven generator |
| CN109679566A (en) * | 2018-12-17 | 2019-04-26 | 株洲时代新材料科技股份有限公司 | A kind of high performance polyurethane casting glue and preparation method thereof and application method |
| CN109705795A (en) * | 2019-01-08 | 2019-05-03 | 广州吉必盛科技实业有限公司 | Dual-component polyurethane adhesive and preparation method thereof |
| WO2021022470A1 (en) * | 2019-08-06 | 2021-02-11 | Dow Global Technologies Llc | One-component type polyurethane prepolymer composition |
-
2021
- 2021-09-10 CN CN202111063198.4A patent/CN113683997A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109468113A (en) * | 2017-09-08 | 2019-03-15 | 烟台德邦科技有限公司 | Pouring sealant for coating protection of wind driven generator |
| CN109679566A (en) * | 2018-12-17 | 2019-04-26 | 株洲时代新材料科技股份有限公司 | A kind of high performance polyurethane casting glue and preparation method thereof and application method |
| CN109705795A (en) * | 2019-01-08 | 2019-05-03 | 广州吉必盛科技实业有限公司 | Dual-component polyurethane adhesive and preparation method thereof |
| WO2021022470A1 (en) * | 2019-08-06 | 2021-02-11 | Dow Global Technologies Llc | One-component type polyurethane prepolymer composition |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023155400A1 (en) * | 2022-02-17 | 2023-08-24 | 道生天合材料科技(上海)股份有限公司 | Polyurethane potting adhesive |
| CN116656306A (en) * | 2022-02-17 | 2023-08-29 | 道生天合材料科技(上海)股份有限公司 | Polyurethane pouring sealant |
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