CN114525015B - Low-temperature operation and maintenance repair resin composition - Google Patents
Low-temperature operation and maintenance repair resin composition Download PDFInfo
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- CN114525015B CN114525015B CN202210173670.8A CN202210173670A CN114525015B CN 114525015 B CN114525015 B CN 114525015B CN 202210173670 A CN202210173670 A CN 202210173670A CN 114525015 B CN114525015 B CN 114525015B
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- 239000011342 resin composition Substances 0.000 title claims abstract description 32
- 238000012423 maintenance Methods 0.000 title claims abstract description 23
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 40
- 239000012752 auxiliary agent Substances 0.000 claims abstract description 22
- 239000003822 epoxy resin Substances 0.000 claims abstract description 22
- 229920000647 polyepoxide Polymers 0.000 claims abstract description 22
- 239000000654 additive Substances 0.000 claims abstract description 7
- 230000000996 additive effect Effects 0.000 claims abstract description 7
- 239000003085 diluting agent Substances 0.000 claims abstract description 6
- PXKLMJQFEQBVLD-UHFFFAOYSA-N bisphenol F Chemical compound C1=CC(O)=CC=C1CC1=CC=C(O)C=C1 PXKLMJQFEQBVLD-UHFFFAOYSA-N 0.000 claims description 10
- VILCJCGEZXAXTO-UHFFFAOYSA-N 2,2,2-tetramine Chemical compound NCCNCCNCCN VILCJCGEZXAXTO-UHFFFAOYSA-N 0.000 claims description 8
- RNLHGQLZWXBQNY-UHFFFAOYSA-N 3-(aminomethyl)-3,5,5-trimethylcyclohexan-1-amine Chemical compound CC1(C)CC(N)CC(C)(CN)C1 RNLHGQLZWXBQNY-UHFFFAOYSA-N 0.000 claims description 8
- -1 alkyl glycidyl ether Chemical compound 0.000 claims description 8
- IISBACLAFKSPIT-UHFFFAOYSA-N bisphenol A Chemical compound C=1C=C(O)C=CC=1C(C)(C)C1=CC=C(O)C=C1 IISBACLAFKSPIT-UHFFFAOYSA-N 0.000 claims description 8
- 229960001124 trientine Drugs 0.000 claims description 8
- CYCBPQPFMHUATH-UHFFFAOYSA-N 4-(oxiran-2-ylmethoxy)butan-1-ol Chemical compound OCCCCOCC1CO1 CYCBPQPFMHUATH-UHFFFAOYSA-N 0.000 claims description 7
- JOLVYUIAMRUBRK-UHFFFAOYSA-N 11',12',14',15'-Tetradehydro(Z,Z-)-3-(8-Pentadecenyl)phenol Natural products OC1=CC=CC(CCCCCCCC=CCC=CCC=C)=C1 JOLVYUIAMRUBRK-UHFFFAOYSA-N 0.000 claims description 6
- YLKVIMNNMLKUGJ-UHFFFAOYSA-N 3-Delta8-pentadecenylphenol Natural products CCCCCCC=CCCCCCCCC1=CC=CC(O)=C1 YLKVIMNNMLKUGJ-UHFFFAOYSA-N 0.000 claims description 6
- JOLVYUIAMRUBRK-UTOQUPLUSA-N Cardanol Chemical compound OC1=CC=CC(CCCCCCC\C=C/C\C=C/CC=C)=C1 JOLVYUIAMRUBRK-UTOQUPLUSA-N 0.000 claims description 6
- FAYVLNWNMNHXGA-UHFFFAOYSA-N Cardanoldiene Natural products CCCC=CCC=CCCCCCCCC1=CC=CC(O)=C1 FAYVLNWNMNHXGA-UHFFFAOYSA-N 0.000 claims description 6
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical group O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 6
- PTFIPECGHSYQNR-UHFFFAOYSA-N cardanol Natural products CCCCCCCCCCCCCCCC1=CC=CC(O)=C1 PTFIPECGHSYQNR-UHFFFAOYSA-N 0.000 claims description 6
- AHDSRXYHVZECER-UHFFFAOYSA-N 2,4,6-tris[(dimethylamino)methyl]phenol Chemical compound CN(C)CC1=CC(CN(C)C)=C(O)C(CN(C)C)=C1 AHDSRXYHVZECER-UHFFFAOYSA-N 0.000 claims description 4
- FDLQZKYLHJJBHD-UHFFFAOYSA-N [3-(aminomethyl)phenyl]methanamine Chemical compound NCC1=CC=CC(CN)=C1 FDLQZKYLHJJBHD-UHFFFAOYSA-N 0.000 claims description 4
- 229910021485 fumed silica Inorganic materials 0.000 claims description 3
- WVDDGKGOMKODPV-ZQBYOMGUSA-N phenyl(114C)methanol Chemical compound O[14CH2]C1=CC=CC=C1 WVDDGKGOMKODPV-ZQBYOMGUSA-N 0.000 claims description 2
- 229920005989 resin Polymers 0.000 abstract description 10
- 239000011347 resin Substances 0.000 abstract description 10
- 238000007665 sagging Methods 0.000 abstract description 5
- 238000013461 design Methods 0.000 abstract description 3
- 238000000034 method Methods 0.000 abstract description 2
- 238000004904 shortening Methods 0.000 abstract description 2
- 239000002904 solvent Substances 0.000 abstract description 2
- 238000003756 stirring Methods 0.000 description 19
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 10
- 238000002156 mixing Methods 0.000 description 8
- 150000001412 amines Chemical group 0.000 description 7
- WVDDGKGOMKODPV-UHFFFAOYSA-N Benzyl alcohol Chemical group OCC1=CC=CC=C1 WVDDGKGOMKODPV-UHFFFAOYSA-N 0.000 description 6
- 239000004842 bisphenol F epoxy resin Substances 0.000 description 6
- 239000000203 mixture Substances 0.000 description 6
- 239000004841 bisphenol A epoxy resin Substances 0.000 description 5
- 229910000019 calcium carbonate Inorganic materials 0.000 description 5
- GYZLOYUZLJXAJU-UHFFFAOYSA-N diglycidyl ether Chemical compound C1OC1COCC1CO1 GYZLOYUZLJXAJU-UHFFFAOYSA-N 0.000 description 5
- 238000010438 heat treatment Methods 0.000 description 5
- WTYYGFLRBWMFRY-UHFFFAOYSA-N 2-[6-(oxiran-2-ylmethoxy)hexoxymethyl]oxirane Chemical compound C1OC1COCCCCCCOCC1CO1 WTYYGFLRBWMFRY-UHFFFAOYSA-N 0.000 description 4
- 239000004744 fabric Substances 0.000 description 4
- 239000000835 fiber Substances 0.000 description 4
- 238000002360 preparation method Methods 0.000 description 4
- 238000005303 weighing Methods 0.000 description 4
- 239000004721 Polyphenylene oxide Substances 0.000 description 3
- QGBSISYHAICWAH-UHFFFAOYSA-N dicyandiamide Chemical compound NC(N)=NC#N QGBSISYHAICWAH-UHFFFAOYSA-N 0.000 description 3
- 238000009787 hand lay-up Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 229920000570 polyether Polymers 0.000 description 3
- 239000004593 Epoxy Substances 0.000 description 2
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 2
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 description 2
- 238000007792 addition Methods 0.000 description 2
- 235000019445 benzyl alcohol Nutrition 0.000 description 2
- 230000009969 flowable effect Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N phenol group Chemical group C1(=CC=CC=C1)O ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 2
- 229920000768 polyamine Polymers 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- JHPBZFOKBAGZBL-UHFFFAOYSA-N (3-hydroxy-2,2,4-trimethylpentyl) 2-methylprop-2-enoate Chemical compound CC(C)C(O)C(C)(C)COC(=O)C(C)=C JHPBZFOKBAGZBL-UHFFFAOYSA-N 0.000 description 1
- WELSDMYWYMPCMH-UHFFFAOYSA-N (4-methyl-7-oxabicyclo[4.1.0]heptan-3-yl)methyl 7-oxabicyclo[4.1.0]heptane-3-carboxylate Chemical compound O1C2CC(C(CC21)C)COC(=O)C2CC1C(CC2)O1 WELSDMYWYMPCMH-UHFFFAOYSA-N 0.000 description 1
- OCJBOOLMMGQPQU-UHFFFAOYSA-N 1,4-dichlorobenzene Chemical compound ClC1=CC=C(Cl)C=C1 OCJBOOLMMGQPQU-UHFFFAOYSA-N 0.000 description 1
- YDIZFUMZDHUHSH-UHFFFAOYSA-N 1,7-bis(ethenyl)-3,8-dioxatricyclo[5.1.0.02,4]oct-5-ene Chemical compound C12OC2C=CC2(C=C)C1(C=C)O2 YDIZFUMZDHUHSH-UHFFFAOYSA-N 0.000 description 1
- ZDQNWDNMNKSMHI-UHFFFAOYSA-N 1-[2-(2-prop-2-enoyloxypropoxy)propoxy]propan-2-yl prop-2-enoate Chemical compound C=CC(=O)OC(C)COC(C)COCC(C)OC(=O)C=C ZDQNWDNMNKSMHI-UHFFFAOYSA-N 0.000 description 1
- VOBUAPTXJKMNCT-UHFFFAOYSA-N 1-prop-2-enoyloxyhexyl prop-2-enoate Chemical compound CCCCCC(OC(=O)C=C)OC(=O)C=C VOBUAPTXJKMNCT-UHFFFAOYSA-N 0.000 description 1
- YSUQLAYJZDEMOT-UHFFFAOYSA-N 2-(butoxymethyl)oxirane Chemical compound CCCCOCC1CO1 YSUQLAYJZDEMOT-UHFFFAOYSA-N 0.000 description 1
- FLMRHAZRTLGUHB-UHFFFAOYSA-N 2-[(3-pentadecylphenoxy)methyl]oxirane Chemical compound CCCCCCCCCCCCCCCC1=CC=CC(OCC2OC2)=C1 FLMRHAZRTLGUHB-UHFFFAOYSA-N 0.000 description 1
- DXEHULHXWHEJJD-UHFFFAOYSA-N 2-[(4-butylphenoxy)methyl]oxirane Chemical compound C1=CC(CCCC)=CC=C1OCC1OC1 DXEHULHXWHEJJD-UHFFFAOYSA-N 0.000 description 1
- HPILSDOMLLYBQF-UHFFFAOYSA-N 2-[1-(oxiran-2-ylmethoxy)butoxymethyl]oxirane Chemical compound C1OC1COC(CCC)OCC1CO1 HPILSDOMLLYBQF-UHFFFAOYSA-N 0.000 description 1
- SEFYJVFBMNOLBK-UHFFFAOYSA-N 2-[2-[2-(oxiran-2-ylmethoxy)ethoxy]ethoxymethyl]oxirane Chemical compound C1OC1COCCOCCOCC1CO1 SEFYJVFBMNOLBK-UHFFFAOYSA-N 0.000 description 1
- PPEASEWKOGNDKZ-UHFFFAOYSA-N 2-[[2,6-bis(oxiran-2-ylmethyl)phenoxy]methyl]oxirane Chemical compound C1OC1COC(C(=CC=C1)CC2OC2)=C1CC1CO1 PPEASEWKOGNDKZ-UHFFFAOYSA-N 0.000 description 1
- NJWSNNWLBMSXQR-UHFFFAOYSA-N 2-hexyloxirane Chemical compound CCCCCCC1CO1 NJWSNNWLBMSXQR-UHFFFAOYSA-N 0.000 description 1
- GXDHCNNESPLIKD-UHFFFAOYSA-N 2-methylhexane Natural products CCCCC(C)C GXDHCNNESPLIKD-UHFFFAOYSA-N 0.000 description 1
- AEXMKKGTQYQZCS-UHFFFAOYSA-N 3,3-dimethylpentane Chemical compound CCC(C)(C)CC AEXMKKGTQYQZCS-UHFFFAOYSA-N 0.000 description 1
- KOGSPLLRMRSADR-UHFFFAOYSA-N 4-(2-aminopropan-2-yl)-1-methylcyclohexan-1-amine Chemical compound CC(C)(N)C1CCC(C)(N)CC1 KOGSPLLRMRSADR-UHFFFAOYSA-N 0.000 description 1
- JLBJTVDPSNHSKJ-UHFFFAOYSA-N 4-Methylstyrene Chemical compound CC1=CC=C(C=C)C=C1 JLBJTVDPSNHSKJ-UHFFFAOYSA-N 0.000 description 1
- DWQKCRRQYWYEEL-UHFFFAOYSA-N 5-pent-4-enoxypent-1-ene Chemical compound C=CCCCOCCCC=C DWQKCRRQYWYEEL-UHFFFAOYSA-N 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-M Acrylate Chemical compound [O-]C(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-M 0.000 description 1
- 229910002012 Aerosil® Inorganic materials 0.000 description 1
- ADAHGVUHKDNLEB-UHFFFAOYSA-N Bis(2,3-epoxycyclopentyl)ether Chemical compound C1CC2OC2C1OC1CCC2OC21 ADAHGVUHKDNLEB-UHFFFAOYSA-N 0.000 description 1
- 239000004215 Carbon black (E152) Substances 0.000 description 1
- 239000004641 Diallyl-phthalate Substances 0.000 description 1
- ZFIVKAOQEXOYFY-UHFFFAOYSA-N Diepoxybutane Chemical compound C1OC1C1OC1 ZFIVKAOQEXOYFY-UHFFFAOYSA-N 0.000 description 1
- RPNUMPOLZDHAAY-UHFFFAOYSA-N Diethylenetriamine Chemical compound NCCNCCN RPNUMPOLZDHAAY-UHFFFAOYSA-N 0.000 description 1
- PIICEJLVQHRZGT-UHFFFAOYSA-N Ethylenediamine Chemical compound NCCN PIICEJLVQHRZGT-UHFFFAOYSA-N 0.000 description 1
- 229910019142 PO4 Inorganic materials 0.000 description 1
- FQYUMYWMJTYZTK-UHFFFAOYSA-N Phenyl glycidyl ether Chemical compound C1OC1COC1=CC=CC=C1 FQYUMYWMJTYZTK-UHFFFAOYSA-N 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- OKKRPWIIYQTPQF-UHFFFAOYSA-N Trimethylolpropane trimethacrylate Chemical compound CC(=C)C(=O)OCC(CC)(COC(=O)C(C)=C)COC(=O)C(C)=C OKKRPWIIYQTPQF-UHFFFAOYSA-N 0.000 description 1
- IMUDHTPIFIBORV-UHFFFAOYSA-N aminoethylpiperazine Chemical compound NCCN1CCNCC1 IMUDHTPIFIBORV-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- QUDWYFHPNIMBFC-UHFFFAOYSA-N bis(prop-2-enyl) benzene-1,2-dicarboxylate Chemical compound C=CCOC(=O)C1=CC=CC=C1C(=O)OCC=C QUDWYFHPNIMBFC-UHFFFAOYSA-N 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 239000004359 castor oil Substances 0.000 description 1
- 235000019438 castor oil Nutrition 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- PBBJQDKWYWWATI-UHFFFAOYSA-N cyclohexene ethene Chemical group C1=CCCCC1.C=C PBBJQDKWYWWATI-UHFFFAOYSA-N 0.000 description 1
- 229940117389 dichlorobenzene Drugs 0.000 description 1
- 239000002270 dispersing agent Substances 0.000 description 1
- 229930004069 diterpene Natural products 0.000 description 1
- 150000004141 diterpene derivatives Chemical class 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 125000003700 epoxy group Chemical group 0.000 description 1
- RTZKZFJDLAIYFH-UHFFFAOYSA-N ether Substances CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 1
- 125000004494 ethyl ester group Chemical group 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 230000009477 glass transition Effects 0.000 description 1
- 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 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000008204 material by function Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 description 1
- 239000010452 phosphate Substances 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- 239000004014 plasticizer Substances 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 239000000344 soap Substances 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 239000002562 thickening agent Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L63/00—Compositions of epoxy resins; Compositions of derivatives of epoxy resins
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Epoxy Resins (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The invention discloses a resin composition for low-temperature operation and maintenance repair. The resin composition of the invention comprises 60-90 wt% of main agent and 10-40 wt% of auxiliary agent, wherein the main agent comprises 60-90 wt% of epoxy resin, 10-30 wt% of diluent and 0-10 wt% of additive, and the auxiliary agent comprises 70-100 wt% of curing agent and 0-30 wt% of additive. The resin composition of the invention can not freeze (or crystallize) at low temperature (below 0 ℃), has no VOC and no solvent, and is more environment-friendly; the sagging resistance is good, and the resin is not drool during the vertical face transportation and maintenance; the fluidity is good; the Tg is built quickly, the temperature is 60 ℃ for 1h, and the Tg is more than 60 ℃, so that the method has great help in shortening the operation time and improving the operation efficiency for outdoor operation and maintenance repair; the resin composition for repairing the low Wen Yunwei has excellent performance and strong design property, and has wide application prospect.
Description
Technical Field
The invention relates to a resin composition for low-temperature operation and maintenance repair, and belongs to the technical field of functional materials.
Background
At present, ten thousands of wind turbines are increased annually at home, especially those installed in the starting stage, and the current design and manufacturing technology level is not high, so that the turbines run for several years, and quality problems are caused. In addition, some units are now being upgraded each year, and the operation and maintenance of these units is being brought to the market, so the size of this market will be larger and larger.
At present, the operation and maintenance repair of wind power blades is not very mature, and the used resin is traditional hand paste resin which is developed for indoor operation, can freeze (or crystallize) at low temperature (below 0 ℃), has very high viscosity, is not flowable and cannot be normally used. The operation and maintenance repair of wind power is carried out in the air with a distance of hundreds of meters from the ground outdoors, the temperature of the wind field blades in the north, particularly in winter, is generally below 0 ℃, even as low as minus 20 ℃, and the operation and maintenance repair resin capable of being operated at a low temperature (below 0 ℃) is urgently needed.
Disclosure of Invention
The technical problems to be solved by the invention are as follows: the hand paste resin for repairing the operation and maintenance of the wind power blade at present can be frozen (or crystallized) at low temperature (below 0 ℃), has very high viscosity, is not flowable, and cannot be normally used at low temperature.
In order to solve the technical problems, the invention provides a low-temperature operation and maintenance repair resin composition, which comprises 60-90 wt% of a main agent and 10-40 wt% of an auxiliary agent, wherein the main agent comprises 60-90 wt% of epoxy resin, 10-30 wt% of a diluent and 0-10 wt% of an additive, and the auxiliary agent comprises 70-100 wt% of a curing agent and 0-30 wt% of an additive.
Preferably, the epoxy resin is at least one of bisphenol A epoxy resin, bisphenol F epoxy resin, multifunctional epoxy group epoxy resin, phenolic aldehyde type epoxy resin, brominated epoxy resin, o-phenolic aldehyde type epoxy resin and rubber toughening type epoxy resin, and the epoxy equivalent in the epoxy resin is 160-10,000 g/equivalent; the diluent is at least one of epoxyoctane, butyl glycidyl ether, mono-oxy dipentene, phenyl glycidyl ether, 1, 4-butanediol glycidyl ether, 1, 6-hexanediol diglycidyl ether, p-butylphenyl glycidyl ether, tolyl glycidyl ether, 3-pentadecyl phenyl glycidyl ether, butadiene dioxide, dimethylpentane dioxide, diglycidyl ether, butanediol diglycidyl ether, diethylene glycol diglycidyl ether, cyclohexene ethylene dioxide, diterpene dioxide, bis (2, 3-epoxycyclopentyl) ether, 3, 4-epoxy-6-methylcyclohexylmethyl 3, 4-epoxycyclohexane carboxylate, divinylbenzene dioxide, 2-epoxypropylphenyl glycidyl ether, 2, 6-diglycidyl phenyl glycidyl ether, styrene, p-vinyltoluene, dichlorobenzene, 2-methyl-2-propenoic acid-2-hydrocarbon ethyl ester phosphate, acrylic ester, methacrylic ester, diallyl phthalate, hexanediol diacrylate, tripropylene glycol diacrylate, triallylmethyl acrylate, trimethylolpropane trimethacrylate, glycidyl ether, and glycidyl ether of at least one of 10 to 16.
Preferably, the epoxy resin is bisphenol A epoxy resin and/or bisphenol F epoxy resin, and the epoxy equivalent in the epoxy resin is 170-190 g/equivalent; the diluent is at least one of 1, 4-butanediol glycidyl ether, C12-14 alkyl glycidyl ether and 1, 6-hexanediol diglycidyl ether.
Preferably, the viscosity of the main agent is less than or equal to 150Pa.s at-15 ℃. More preferably, the viscosity of the main agent is less than or equal to 120Pa.s at-15 ℃.
Preferably, the curing agent is an amine curing agent, a mixture of an amine curing agent and a phenolic curing agent or a mixture of an amine curing agent and an alcohol curing agent.
More preferably, the amine curing agent is polyamine, and the polyamine is at least one of ethylenediamine, diethylenetriamine, triethylenetetramine, polypropylene ether diamine, N-aminoethylpiperazine, menthanediamine, isophorone diamine, m-xylylenediamine, dicyandiamide and polyether amine; the phenolic curing agent is at least one of 2,4, 6-tris (dimethylaminomethyl) phenol and cardanol; the alcohol curing agent is benzyl alcohol.
Preferably, the additive is at least one of an anti-sagging agent, a reaction accelerator, a thickener, a plasticizer, a filler and a pigment dispersant.
More preferably, the anti-sagging agent is at least one of organobentonite, hydrogenated castor oil, fumed silica, nano calcium carbonate and metal soap. The sagging-preventing agent can prevent resin sagging.
Preferably, the Tg of the resin composition after curing at 60 ℃ for 1h is more than 60 ℃, and the Tg after curing at 60 ℃ for 4h is more than or equal to 70 DEG C
Compared with the prior art, the invention has the beneficial effects that:
1. the low Wen Yunwei repaired resin composition of the present invention does not freeze (or crystallize) at low temperatures (below 0 ℃) and has good fluidity; the Tg is built quickly, the temperature is 60 ℃ for 1h, and the Tg is more than 60 ℃, so that the method has great help in shortening the operation time and improving the operation efficiency for outdoor operation and maintenance repair;
2. the low Wen Yunwei repaired resin composition disclosed by the invention is free of VOC and solvent and more environment-friendly; the sagging resistance is good, and the resin is not drool during the vertical face transportation and maintenance; the resin composition for repairing the low Wen Yunwei has excellent performance and strong design property, and has wide application prospect.
Detailed Description
In order to make the present invention more comprehensible, preferred embodiments accompanied with the present invention are described in detail below.
Example 1
A low temperature maintenance repair resin composition comprising 85wt% of a main agent and 15wt% of an auxiliary agent; wherein, the main agent comprises: 20 parts of bisphenol A type epoxy resin, 60 parts of bisphenol F type epoxy resin and 20 parts of C12-14 alkyl glycidyl ether; the auxiliary agent comprises: 80 parts of triethylene tetramine and 20 parts of benzyl alcohol.
The preparation method of the resin composition comprises the following steps:
(1) Putting bisphenol A epoxy resin, bisphenol F epoxy resin, C12-14 fatty glycidyl ether into a reaction kettle, heating the reaction kettle to 60 ℃, starting a stirrer, continuously stirring at the speed of 60rpm for 60 minutes, stopping stirring, and recovering the reaction kettle to normal temperature to obtain the main agent;
(2) And (3) accurately weighing triethylene tetramine and benzyl alcohol, adding the materials into another reaction kettle, starting a stirrer, continuously stirring at a speed of 60rpm for 30min, and stopping stirring after uniformly mixing to obtain the auxiliary agent.
(3) And (3) uniformly mixing the main agent in the step (1) and the auxiliary agent in the step (2) according to the proportion of 100:17 to obtain the low Wen Yunwei repaired resin composition.
(4) During operation and maintenance repair, the composition in the step (3) is infiltrated into the fiber fabric, and then is solidified at 60-90 ℃.
Example 2
A low-temperature operation repair resin composition comprises 80wt% of a main agent and 20wt% of an auxiliary agent; wherein, the main agent comprises: 50 parts of bisphenol A type epoxy resin, 20 parts of bisphenol F type epoxy resin, 25 parts of 1, 4-butanediol glycidyl ether and 5 parts of aerosil silica; the auxiliary agent comprises: 50 parts of m-xylylenediamine, 25 parts of isophorone diamine, 5 parts of 2,4, 6-tris (dimethylaminomethyl) phenol and 20 parts of cardanol.
The preparation method of the resin composition comprises the following steps:
(1) Putting bisphenol A epoxy resin, bisphenol F epoxy resin and 1, 4-butanediol glycidyl ether into a reaction kettle, heating the reaction kettle to 60 ℃, starting a stirrer, stirring at a speed of 60rpm, uniformly dispersing fumed silica into the reaction kettle by using a dispersing disc, stirring while dispersing, stopping stirring after 60 minutes, and recovering the reaction kettle to normal temperature to obtain the main agent;
(2) Accurately weighing m-xylylenediamine, isophorone diamine, 2,4, 6-tris (dimethylaminomethyl) phenol and cardanol, adding into another reaction kettle, starting a stirrer, continuously stirring at a speed of 60rpm for 15min, and stopping stirring after uniformly mixing to obtain the auxiliary agent.
(3) And (3) uniformly mixing the main agent in the step (1) and the auxiliary agent in the step (2) according to the proportion of 100:25 to obtain the low Wen Yunwei repaired resin composition.
(4) During operation and maintenance repair, the composition in the step (3) is infiltrated into the fiber fabric, and then is solidified at 60-90 ℃.
Example 3
A low-temperature operation repair resin composition comprises 80wt% of a main agent and 20wt% of an auxiliary agent; wherein, the main agent comprises: 70 parts of bisphenol F type epoxy resin, 25 parts of 1, 6-hexanediol diglycidyl ether and 5 parts of nano calcium carbonate; the auxiliary agent comprises: 20 parts of isophorone diamine, 40 parts of triethylene tetramine and 40 parts of polyether amine.
The preparation method of the resin composition comprises the following steps:
(1) Putting bisphenol F epoxy resin and 1, 6-hexanediol diglycidyl ether into a reaction kettle, heating the reaction kettle to 60 ℃, starting a stirrer, stirring at a speed of 60rpm, uniformly dispersing nano calcium carbonate into the reaction kettle by using a dispersing disc, stirring while dispersing, stopping stirring after 60 minutes, and recovering the reaction kettle to normal temperature to obtain the main agent;
(2) Accurately weighing triethylene tetramine, isophorone diamine and polyether amine, adding the weighed materials into another reaction kettle, starting a stirrer, continuously stirring at a speed of 60rpm for 30min, and stopping stirring after uniformly mixing to obtain the auxiliary agent.
(3) And (3) uniformly mixing the main agent in the step (1) and the auxiliary agent in the step (2) according to the proportion of 100:25 to obtain the low Wen Yunwei repaired resin composition.
(4) During operation and maintenance repair, the composition in the step (3) is infiltrated into the fiber fabric, and then is solidified at 60-90 ℃.
Example 4
A low temperature maintenance repair resin composition comprising 83wt% of a main agent and 17wt% of an auxiliary agent; wherein, the main agent comprises: 60 parts of bisphenol A type epoxy resin, 20 parts of bisphenol F type epoxy resin, 15 parts of 1, 4-butanediol glycidyl ether and 5 parts of nano calcium carbonate; auxiliary agent: 50 parts of isophorone diamine, 30 parts of triethylene tetramine, 5 parts of dicyandiamide and 15 parts of cardanol.
The preparation method of the resin composition comprises the following steps:
(1) Putting bisphenol A epoxy resin, bisphenol F epoxy resin and 1, 4-butanediol glycidyl ether into a reaction kettle, heating the reaction kettle to 60 ℃, starting a stirrer, stirring at a speed of 60rpm, uniformly dispersing nano calcium carbonate into the reaction kettle by using a dispersing disc, stirring while dispersing, stopping stirring after 60 minutes, and recovering the reaction kettle to normal temperature to obtain the main agent;
(2) Accurately weighing triethylene tetramine, isophorone diamine, dicyandiamide and cardanol, adding the weighed materials into another reaction kettle, heating the reaction kettle to 50 ℃, starting a stirrer, continuously stirring at a speed of 60rpm for 30min, uniformly mixing, recovering the reaction kettle to normal temperature, and stopping stirring to obtain the auxiliary agent.
(3) And (3) uniformly mixing the main agent in the step (1) and the auxiliary agent in the step (2) according to the proportion of 100:20 to obtain the low Wen Yunwei repaired resin composition.
(4) During operation and maintenance repair, the composition in the step (3) is infiltrated into the fiber fabric, and then is solidified at 60-90 ℃.
The test shows that the Tg of the resin compositions for repairing the low Wen Yunwei in the examples 1-4 is higher than 70 ℃ after the resin compositions are cured at 60 ℃ for 1h and the Tg of the resin compositions is higher than 60 ℃ after the resin compositions are cured at 60 ℃ for 4 h. (test method: DSC scan gives the midpoint of the thermal glass transition position of the spectrogram); the results of the operation and mechanical properties of the low Wen Yunwei repair resin compositions of examples 1-4 are shown in tables 1 and 2, respectively, wherein 2513-A/2513-BF is a weft-on conventional hand lay-up resin, which is currently the hand lay-up resin of choice for customer operation and maintenance repair.
Table 1 operability
TABLE 2 mechanical Properties (curing conditions: 16h at room temperature+70℃.sub.8 h)
From the above results, it is possible to obtain: the resin compositions of example 1 and example 2 are superior to other examples in terms of processing property and casting property and conventional type hand lay-up resin, and the resin compositions of examples 1 to 4 can be used in an environment of 15 ℃ below zero, thereby improving the processing property of maintenance and repair and greatly improving the construction efficiency.
The above-described embodiments are only preferred embodiments of the present invention, and are not intended to be limiting in any way and in nature, and it should be noted that several modifications and additions may be made to those skilled in the art without departing from the invention, which modifications and additions are also intended to be construed as within the scope of the invention.
Claims (1)
1. The low-temperature operation and maintenance repair resin composition is characterized by comprising 60-90 wt% of a main agent and 10-40 wt% of an auxiliary agent, wherein the main agent comprises 60-90 wt% of epoxy resin, 10-30 wt% of a diluent and 0-10 wt% of an additive;
the epoxy resin is bisphenol A type epoxy resin and bisphenol F type epoxy resin;
the diluent is C12-14 alkyl glycidyl ether or 1, 4-butanediol glycidyl ether;
the additive is fumed silica;
the auxiliary agent consists of curing agent triethylene tetramine and benzyl alcohol, or consists of curing agent m-xylylenediamine, isophorone diamine, 2,4, 6-tris (dimethylaminomethyl) phenol and cardanol.
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