CN116804135A - Photo-curing adhesive for repairing fan blade, and preparation method and application thereof - Google Patents
Photo-curing adhesive for repairing fan blade, and preparation method and application thereof Download PDFInfo
- Publication number
- CN116804135A CN116804135A CN202310602025.8A CN202310602025A CN116804135A CN 116804135 A CN116804135 A CN 116804135A CN 202310602025 A CN202310602025 A CN 202310602025A CN 116804135 A CN116804135 A CN 116804135A
- Authority
- CN
- China
- Prior art keywords
- parts
- repairing
- acrylate
- epoxy resin
- fan blade
- Prior art date
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- Pending
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- 239000000853 adhesive Substances 0.000 title claims abstract description 78
- 230000001070 adhesive effect Effects 0.000 title claims abstract description 78
- 238000000016 photochemical curing Methods 0.000 title claims abstract description 59
- 238000002360 preparation method Methods 0.000 title claims abstract description 20
- NIXOWILDQLNWCW-UHFFFAOYSA-M Acrylate Chemical compound [O-]C(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-M 0.000 claims abstract description 64
- 239000004593 Epoxy Substances 0.000 claims abstract description 61
- 239000003822 epoxy resin Substances 0.000 claims abstract description 58
- 229920000647 polyepoxide Polymers 0.000 claims abstract description 58
- 229920000058 polyacrylate Polymers 0.000 claims abstract description 39
- -1 glycidol amine Chemical class 0.000 claims abstract description 17
- 239000003999 initiator Substances 0.000 claims abstract description 15
- 239000002994 raw material Substances 0.000 claims abstract description 12
- 238000000034 method Methods 0.000 claims description 35
- 230000008569 process Effects 0.000 claims description 30
- NIXOWILDQLNWCW-UHFFFAOYSA-N 2-Propenoic acid Natural products OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims description 15
- DAKWPKUUDNSNPN-UHFFFAOYSA-N Trimethylolpropane triacrylate Chemical compound C=CC(=O)OCC(CC)(COC(=O)C=C)COC(=O)C=C DAKWPKUUDNSNPN-UHFFFAOYSA-N 0.000 claims description 14
- CERQOIWHTDAKMF-UHFFFAOYSA-N Methacrylic acid Chemical compound CC(=C)C(O)=O CERQOIWHTDAKMF-UHFFFAOYSA-N 0.000 claims description 13
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 claims description 12
- 239000000203 mixture Substances 0.000 claims description 12
- 230000008439 repair process Effects 0.000 claims description 12
- YDKNBNOOCSNPNS-UHFFFAOYSA-N methyl 1,3-benzoxazole-2-carboxylate Chemical compound C1=CC=C2OC(C(=O)OC)=NC2=C1 YDKNBNOOCSNPNS-UHFFFAOYSA-N 0.000 claims description 11
- 239000000178 monomer Substances 0.000 claims description 10
- RWCCWEUUXYIKHB-UHFFFAOYSA-N benzophenone Chemical compound C=1C=CC=CC=1C(=O)C1=CC=CC=C1 RWCCWEUUXYIKHB-UHFFFAOYSA-N 0.000 claims description 9
- JHWGFJBTMHEZME-UHFFFAOYSA-N 4-prop-2-enoyloxybutyl prop-2-enoate Chemical compound C=CC(=O)OCCCCOC(=O)C=C JHWGFJBTMHEZME-UHFFFAOYSA-N 0.000 claims description 8
- WOBHKFSMXKNTIM-UHFFFAOYSA-N Hydroxyethyl methacrylate Chemical compound CC(=C)C(=O)OCCO WOBHKFSMXKNTIM-UHFFFAOYSA-N 0.000 claims description 8
- 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 claims description 8
- GUCYFKSBFREPBC-UHFFFAOYSA-N [phenyl-(2,4,6-trimethylbenzoyl)phosphoryl]-(2,4,6-trimethylphenyl)methanone Chemical compound CC1=CC(C)=CC(C)=C1C(=O)P(=O)(C=1C=CC=CC=1)C(=O)C1=C(C)C=C(C)C=C1C GUCYFKSBFREPBC-UHFFFAOYSA-N 0.000 claims description 8
- YIKSHDNOAYSSPX-UHFFFAOYSA-N 1-propan-2-ylthioxanthen-9-one Chemical compound S1C2=CC=CC=C2C(=O)C2=C1C=CC=C2C(C)C YIKSHDNOAYSSPX-UHFFFAOYSA-N 0.000 claims description 7
- 229920002818 (Hydroxyethyl)methacrylate Polymers 0.000 claims description 6
- GNSFRPWPOGYVLO-UHFFFAOYSA-N 3-hydroxypropyl 2-methylprop-2-enoate Chemical compound CC(=C)C(=O)OCCCO GNSFRPWPOGYVLO-UHFFFAOYSA-N 0.000 claims description 6
- QZPSOSOOLFHYRR-UHFFFAOYSA-N 3-hydroxypropyl prop-2-enoate Chemical compound OCCCOC(=O)C=C QZPSOSOOLFHYRR-UHFFFAOYSA-N 0.000 claims description 6
- FXIVKZGDYRLHKF-UHFFFAOYSA-N C(C)OP(OC(C1=C(C=C(C=C1C)C)C)=O)(=O)C1=CC=CC=C1 Chemical compound C(C)OP(OC(C1=C(C=C(C=C1C)C)C)=O)(=O)C1=CC=CC=C1 FXIVKZGDYRLHKF-UHFFFAOYSA-N 0.000 claims description 6
- 239000012965 benzophenone Substances 0.000 claims description 6
- FSDNTQSJGHSJBG-UHFFFAOYSA-N piperidine-4-carbonitrile Chemical compound N#CC1CCNCC1 FSDNTQSJGHSJBG-UHFFFAOYSA-N 0.000 claims description 6
- PUGOMSLRUSTQGV-UHFFFAOYSA-N 2,3-di(prop-2-enoyloxy)propyl prop-2-enoate Chemical compound C=CC(=O)OCC(OC(=O)C=C)COC(=O)C=C PUGOMSLRUSTQGV-UHFFFAOYSA-N 0.000 claims description 5
- VFHVQBAGLAREND-UHFFFAOYSA-N diphenylphosphoryl-(2,4,6-trimethylphenyl)methanone Chemical compound CC1=CC(C)=CC(C)=C1C(=O)P(=O)(C=1C=CC=CC=1)C1=CC=CC=C1 VFHVQBAGLAREND-UHFFFAOYSA-N 0.000 claims description 5
- 238000002156 mixing Methods 0.000 claims description 5
- LCGLNKUTAGEVQW-UHFFFAOYSA-N Dimethyl ether Chemical compound COC LCGLNKUTAGEVQW-UHFFFAOYSA-N 0.000 claims description 4
- ISAOCJYIOMOJEB-UHFFFAOYSA-N benzoin Chemical compound C=1C=CC=CC=1C(O)C(=O)C1=CC=CC=C1 ISAOCJYIOMOJEB-UHFFFAOYSA-N 0.000 claims description 4
- CERQOIWHTDAKMF-UHFFFAOYSA-M Methacrylate Chemical compound CC(=C)C([O-])=O CERQOIWHTDAKMF-UHFFFAOYSA-M 0.000 claims description 3
- LBDSQNRQXIKAGX-UHFFFAOYSA-N (2-methyl-3-prop-2-enoyloxypropyl) prop-2-enoate Chemical compound C=CC(=O)OCC(C)COC(=O)C=C LBDSQNRQXIKAGX-UHFFFAOYSA-N 0.000 claims description 2
- IQGIEMYBDGDBMR-UHFFFAOYSA-N (3-methyl-5-prop-2-enoyloxypentyl) prop-2-enoate Chemical compound C=CC(=O)OCCC(C)CCOC(=O)C=C IQGIEMYBDGDBMR-UHFFFAOYSA-N 0.000 claims description 2
- PSGCQDPCAWOCSH-UHFFFAOYSA-N (4,7,7-trimethyl-3-bicyclo[2.2.1]heptanyl) prop-2-enoate Chemical compound C1CC2(C)C(OC(=O)C=C)CC1C2(C)C PSGCQDPCAWOCSH-UHFFFAOYSA-N 0.000 claims description 2
- OTKCEEWUXHVZQI-UHFFFAOYSA-N 1,2-diphenylethanone Chemical compound C=1C=CC=CC=1C(=O)CC1=CC=CC=C1 OTKCEEWUXHVZQI-UHFFFAOYSA-N 0.000 claims description 2
- 239000012956 1-hydroxycyclohexylphenyl-ketone Substances 0.000 claims description 2
- ZXDDPOHVAMWLBH-UHFFFAOYSA-N 2,4-Dihydroxybenzophenone Chemical compound OC1=CC(O)=CC=C1C(=O)C1=CC=CC=C1 ZXDDPOHVAMWLBH-UHFFFAOYSA-N 0.000 claims description 2
- OWDBMKZHFCSOOL-UHFFFAOYSA-N 2-[2-[2-(2-methylprop-2-enoyloxy)propoxy]propoxy]propyl 2-methylprop-2-enoate Chemical compound CC(=C)C(=O)OC(C)COC(C)COC(C)COC(=O)C(C)=C OWDBMKZHFCSOOL-UHFFFAOYSA-N 0.000 claims description 2
- JMWGZSWSTCGVLX-UHFFFAOYSA-N 2-ethyl-2-(hydroxymethyl)propane-1,3-diol;2-methylprop-2-enoic acid Chemical class CC(=C)C(O)=O.CC(=C)C(O)=O.CC(=C)C(O)=O.CCC(CO)(CO)CO JMWGZSWSTCGVLX-UHFFFAOYSA-N 0.000 claims description 2
- OMIGHNLMNHATMP-UHFFFAOYSA-N 2-hydroxyethyl prop-2-enoate Chemical compound OCCOC(=O)C=C OMIGHNLMNHATMP-UHFFFAOYSA-N 0.000 claims description 2
- XOJWAAUYNWGQAU-UHFFFAOYSA-N 4-(2-methylprop-2-enoyloxy)butyl 2-methylprop-2-enoate Chemical compound CC(=C)C(=O)OCCCCOC(=O)C(C)=C XOJWAAUYNWGQAU-UHFFFAOYSA-N 0.000 claims description 2
- DBCAQXHNJOFNGC-UHFFFAOYSA-N 4-bromo-1,1,1-trifluorobutane Chemical compound FC(F)(F)CCCBr DBCAQXHNJOFNGC-UHFFFAOYSA-N 0.000 claims description 2
- SAPGBCWOQLHKKZ-UHFFFAOYSA-N 6-(2-methylprop-2-enoyloxy)hexyl 2-methylprop-2-enoate Chemical compound CC(=C)C(=O)OCCCCCCOC(=O)C(C)=C SAPGBCWOQLHKKZ-UHFFFAOYSA-N 0.000 claims description 2
- 244000028419 Styrax benzoin Species 0.000 claims description 2
- 235000000126 Styrax benzoin Nutrition 0.000 claims description 2
- 235000008411 Sumatra benzointree Nutrition 0.000 claims description 2
- IAXXETNIOYFMLW-COPLHBTASA-N [(1s,3s,4s)-4,7,7-trimethyl-3-bicyclo[2.2.1]heptanyl] 2-methylprop-2-enoate Chemical compound C1C[C@]2(C)[C@@H](OC(=O)C(=C)C)C[C@H]1C2(C)C IAXXETNIOYFMLW-COPLHBTASA-N 0.000 claims description 2
- KNSXNCFKSZZHEA-UHFFFAOYSA-N [3-prop-2-enoyloxy-2,2-bis(prop-2-enoyloxymethyl)propyl] prop-2-enoate Chemical class C=CC(=O)OCC(COC(=O)C=C)(COC(=O)C=C)COC(=O)C=C KNSXNCFKSZZHEA-UHFFFAOYSA-N 0.000 claims description 2
- 150000001252 acrylic acid derivatives Chemical class 0.000 claims description 2
- 229960002130 benzoin Drugs 0.000 claims description 2
- MQDJYUACMFCOFT-UHFFFAOYSA-N bis[2-(1-hydroxycyclohexyl)phenyl]methanone Chemical compound C=1C=CC=C(C(=O)C=2C(=CC=CC=2)C2(O)CCCCC2)C=1C1(O)CCCCC1 MQDJYUACMFCOFT-UHFFFAOYSA-N 0.000 claims description 2
- STVZJERGLQHEKB-UHFFFAOYSA-N ethylene glycol dimethacrylate Substances CC(=C)C(=O)OCCOC(=O)C(C)=C STVZJERGLQHEKB-UHFFFAOYSA-N 0.000 claims description 2
- 235000019382 gum benzoic Nutrition 0.000 claims description 2
- 229940119545 isobornyl methacrylate Drugs 0.000 claims description 2
- 150000003839 salts Chemical class 0.000 claims 1
- 125000005409 triarylsulfonium group Chemical group 0.000 claims 1
- 238000001723 curing Methods 0.000 abstract description 34
- 239000002131 composite material Substances 0.000 abstract description 3
- 238000011161 development Methods 0.000 abstract description 2
- 238000012795 verification Methods 0.000 abstract description 2
- 239000003365 glass fiber Substances 0.000 description 25
- QIGBRXMKCJKVMJ-UHFFFAOYSA-N Hydroquinone Chemical compound OC1=CC=C(O)C=C1 QIGBRXMKCJKVMJ-UHFFFAOYSA-N 0.000 description 19
- 239000004744 fabric Substances 0.000 description 19
- 238000006243 chemical reaction Methods 0.000 description 11
- XXBDWLFCJWSEKW-UHFFFAOYSA-N dimethylbenzylamine Chemical compound CN(C)CC1=CC=CC=C1 XXBDWLFCJWSEKW-UHFFFAOYSA-N 0.000 description 10
- 239000000463 material Substances 0.000 description 10
- 238000010438 heat treatment Methods 0.000 description 9
- JIGUICYYOYEXFS-UHFFFAOYSA-N 3-tert-butylbenzene-1,2-diol Chemical compound CC(C)(C)C1=CC=CC(O)=C1O JIGUICYYOYEXFS-UHFFFAOYSA-N 0.000 description 8
- 238000003756 stirring Methods 0.000 description 7
- 238000005452 bending Methods 0.000 description 6
- 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 description 6
- 125000003700 epoxy group Chemical group 0.000 description 6
- 229920005989 resin Polymers 0.000 description 6
- 238000012360 testing method Methods 0.000 description 6
- OMPJBNCRMGITSC-UHFFFAOYSA-N Benzoylperoxide Chemical compound C=1C=CC=CC=1C(=O)OOC(=O)C1=CC=CC=C1 OMPJBNCRMGITSC-UHFFFAOYSA-N 0.000 description 5
- 229920002125 Sokalan® Polymers 0.000 description 5
- 239000002253 acid Substances 0.000 description 5
- 238000004132 cross linking Methods 0.000 description 5
- 239000000835 fiber Substances 0.000 description 5
- 239000004584 polyacrylic acid Substances 0.000 description 5
- 238000012545 processing Methods 0.000 description 5
- 239000004342 Benzoyl peroxide Substances 0.000 description 4
- 230000009471 action Effects 0.000 description 4
- 150000004982 aromatic amines Chemical class 0.000 description 4
- 235000019400 benzoyl peroxide Nutrition 0.000 description 4
- 239000004841 bisphenol A epoxy resin Substances 0.000 description 4
- 239000003795 chemical substances by application Substances 0.000 description 4
- 230000000052 comparative effect Effects 0.000 description 4
- 238000007599 discharging Methods 0.000 description 4
- AFEQENGXSMURHA-UHFFFAOYSA-N oxiran-2-ylmethanamine Chemical compound NCC1CO1 AFEQENGXSMURHA-UHFFFAOYSA-N 0.000 description 4
- 238000010992 reflux Methods 0.000 description 4
- 239000004575 stone Substances 0.000 description 4
- 239000011248 coating agent Substances 0.000 description 3
- 238000000576 coating method Methods 0.000 description 3
- 238000009787 hand lay-up Methods 0.000 description 3
- 239000010410 layer Substances 0.000 description 3
- 239000011159 matrix material Substances 0.000 description 3
- 238000009740 moulding (composite fabrication) Methods 0.000 description 3
- 238000010008 shearing Methods 0.000 description 3
- OZAIFHULBGXAKX-UHFFFAOYSA-N 2-(2-cyanopropan-2-yldiazenyl)-2-methylpropanenitrile Chemical compound N#CC(C)(C)N=NC(C)(C)C#N OZAIFHULBGXAKX-UHFFFAOYSA-N 0.000 description 2
- AOBIOSPNXBMOAT-UHFFFAOYSA-N 2-[2-(oxiran-2-ylmethoxy)ethoxymethyl]oxirane Chemical compound C1OC1COCCOCC1CO1 AOBIOSPNXBMOAT-UHFFFAOYSA-N 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- PXKLMJQFEQBVLD-UHFFFAOYSA-N bisphenol F Chemical compound C1=CC(O)=CC=C1CC1=CC=C(O)C=C1 PXKLMJQFEQBVLD-UHFFFAOYSA-N 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 230000009977 dual effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005286 illumination Methods 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- 238000010248 power generation Methods 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 238000007142 ring opening reaction Methods 0.000 description 2
- 230000007480 spreading Effects 0.000 description 2
- 238000003892 spreading Methods 0.000 description 2
- 239000000758 substrate Substances 0.000 description 2
- UFTFJSFQGQCHQW-UHFFFAOYSA-N triformin Chemical compound O=COCC(OC=O)COC=O UFTFJSFQGQCHQW-UHFFFAOYSA-N 0.000 description 2
- XMNIXWIUMCBBBL-UHFFFAOYSA-N 2-(2-phenylpropan-2-ylperoxy)propan-2-ylbenzene Chemical compound C=1C=CC=CC=1C(C)(C)OOC(C)(C)C1=CC=CC=C1 XMNIXWIUMCBBBL-UHFFFAOYSA-N 0.000 description 1
- BJEMXPVDXFSROA-UHFFFAOYSA-N 3-butylbenzene-1,2-diol Chemical group CCCCC1=CC=CC(O)=C1O BJEMXPVDXFSROA-UHFFFAOYSA-N 0.000 description 1
- VPWNQTHUCYMVMZ-UHFFFAOYSA-N 4,4'-sulfonyldiphenol Chemical compound C1=CC(O)=CC=C1S(=O)(=O)C1=CC=C(O)C=C1 VPWNQTHUCYMVMZ-UHFFFAOYSA-N 0.000 description 1
- PCGISRHGYLRXSR-UHFFFAOYSA-N 4-hydroxy-7-[(5-hydroxy-7-sulfonaphthalen-2-yl)carbamoylamino]naphthalene-2-sulfonic acid Chemical compound OC1=CC(S(O)(=O)=O)=CC2=CC(NC(=O)NC=3C=C4C=C(C=C(C4=CC=3)O)S(O)(=O)=O)=CC=C21 PCGISRHGYLRXSR-UHFFFAOYSA-N 0.000 description 1
- 229920002799 BoPET Polymers 0.000 description 1
- 239000002202 Polyethylene glycol Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 239000011229 interlayer Substances 0.000 description 1
- LUCXVPAZUDVVBT-UHFFFAOYSA-N methyl-[3-(2-methylphenoxy)-3-phenylpropyl]azanium;chloride Chemical compound Cl.C=1C=CC=CC=1C(CCNC)OC1=CC=CC=C1C LUCXVPAZUDVVBT-UHFFFAOYSA-N 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 229920001223 polyethylene glycol Polymers 0.000 description 1
- 229920001451 polypropylene glycol Polymers 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 239000000565 sealant Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000012945 sealing adhesive Substances 0.000 description 1
- 239000000741 silica gel Substances 0.000 description 1
- 229910002027 silica gel Inorganic materials 0.000 description 1
- 229920002379 silicone rubber Polymers 0.000 description 1
- 238000010561 standard procedure Methods 0.000 description 1
- 238000004381 surface treatment Methods 0.000 description 1
- GJBRNHKUVLOCEB-UHFFFAOYSA-N tert-butyl benzenecarboperoxoate Chemical compound CC(C)(C)OOC(=O)C1=CC=CC=C1 GJBRNHKUVLOCEB-UHFFFAOYSA-N 0.000 description 1
- 238000001029 thermal curing Methods 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
- C09J4/00—Adhesives based on organic non-macromolecular compounds having at least one polymerisable carbon-to-carbon unsaturated bond ; adhesives, based on monomers of macromolecular compounds of groups C09J183/00 - C09J183/16
- C09J4/06—Organic non-macromolecular compounds having at least one polymerisable carbon-to-carbon unsaturated bond in combination with a macromolecular compound other than an unsaturated polymer of groups C09J159/00 - C09J187/00
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F283/00—Macromolecular compounds obtained by polymerising monomers on to polymers provided for in subclass C08G
- C08F283/10—Macromolecular compounds obtained by polymerising monomers on to polymers provided for in subclass C08G on to polymers containing more than one epoxy radical per molecule
-
- 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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/72—Wind turbines with rotation axis in wind direction
Abstract
The application relates to the technical field of C09J163/00, in particular to a photo-curing adhesive for repairing fan blades, and a preparation method and application thereof. A photo-curing adhesive for repairing fan blades is prepared from the following raw materials: 0-5 parts of tetrafunctional glycidol amine type epoxy resin, 40-50 parts of modified epoxy polyacrylate, 20-30 parts of monofunctional acrylate, 10-20 parts of difunctional acrylate, 5-10 parts of polyfunctional acrylate, 0.5-2 parts of photoinitiator and 0.5-2 parts of thermal initiator. The photocuring adhesive for repairing the fan blade is superior to the mechanical property of the general epoxy resin, and can be subjected to light curing by using a UV lamp, the curing time can be shortened to 15 minutes, and the strength and the performance of the repaired composite material reach and exceed the strength of repairing the fan blade by using the general epoxy resin through verification, so that the photocuring adhesive has a good development prospect.
Description
Technical Field
The application relates to the technical field of C09J163/00, in particular to a photo-curing adhesive for repairing fan blades, and a preparation method and application thereof.
Background
Wind power generation has been rapidly developed in more than twenty years, and fan blades formed by the main bodies of fans used in wind power generation have also been rapidly developed. The fan blade is a composite material formed by using epoxy resin and glass fiber through a vacuum introduction process, and the length of the fan blade is from tens of meters to over 100 meters of current offshore wind power. Usually, the service life of the fan blade is 20 years, the early-stage blade at present enters the upper limit of the service time, a large number of fan blades are damaged by the continuous corrosion and the damage of sand and extreme weather, the damage depth reaches 2 mm-15 mm, the strength of the fan blades is seriously damaged, and the operation safety of the fan is greatly challenged. The existing repair mode is that a worker uses general epoxy resin to carry out surface treatment on a damaged part, then uses a manual paste or vacuum introduction process to carry out coating repair on the glass fiber and the epoxy resin on the damaged part, and the epoxy resin used in the mode needs to be heated and cured, and the curing time of the epoxy resin comprises 6-24 hours according to the heating temperature; the efficiency of repair construction is relatively low and presents challenges to the safety of repair personnel.
The Chinese patent with the patent application number of CN201910933580.2 discloses a photo-thermal dual-curing engineering adhesive, a preparation method and application thereof, and can be cured and molded by adopting ultraviolet light or two modes of combining ultraviolet light and heating, so that the problem that the application of the bonding of shading or semitransparent materials is limited and the curing problem cannot be solved only by adopting an illumination mode is solved.
Therefore, the method can improve the strength of the repaired fan blade and the curing efficiency, and is a main technical problem to be solved at present.
Disclosure of Invention
In order to solve the above problems, the first aspect of the present application provides a photocurable adhesive for repairing fan blades, which is prepared from the following raw materials: 0-5 parts of glycidol amine type epoxy resin, 40-50 parts of modified epoxy polyacrylate, 20-30 parts of monofunctional acrylate, 10-20 parts of difunctional acrylate, 5-10 parts of polyfunctional acrylate, 0.5-2 parts of photoinitiator and 0.5-2 parts of thermal initiator.
Preferably, the glycidylamine-type epoxy resin is a tetrafunctional glycidylamine-type epoxy resin.
The manufacturer of the tetrafunctional glycidylamine type epoxy resin is Shanghai Hua Yi resin Co., ltd, and the model AG601.
The structural formula of the tetrafunctional glycidyl amine type epoxy resin is shown as a structural formula (1):
preferably, the preparation raw materials of the modified epoxy polyacrylate comprise epoxy resin and grafting monomer, wherein the epoxy equivalent of the epoxy resin is 170-200.
Further, the epoxy resin has an epoxy equivalent weight of 180 to 190.
Preferably, the epoxy resin includes, but is not limited to, one or a mixture of any two or more of bisphenol a type epoxy resin, bisphenol S type epoxy resin, bisphenol F type epoxy resin, polyethylene glycol diglycidyl ether and polypropylene glycol diglycidyl ether.
Preferably, the grafting monomer is selected from one or a mixture of two of methacrylic acid and acrylic acid.
Preferably, the mass ratio of the grafting monomer to the epoxy resin is 1: (4-5.5).
Further, the preparation raw materials of the modified epoxy polyacrylate comprise epoxy resin with the epoxy equivalent of 180-190, methacrylic acid, acrylic acid, hydroquinone, dimethylbenzylamine and tert-butyl catechol.
Further, the preparation raw materials of the modified epoxy polyacrylate comprise 3500-4000 parts of epoxy resin with the epoxy equivalent of 180-190, 680-750 parts of methacrylic acid, 60-80 parts of acrylic acid, 1-2.5 parts of hydroquinone, 7-10 parts of dimethylbenzylamine and 1-3 parts of tert-butyl catechol according to parts by weight.
Further, the preparation raw materials of the modified epoxy polyacrylate comprise 3750 parts of epoxy resin with the epoxy equivalent of 180-190, 709 parts of methacrylic acid, 72 parts of acrylic acid, 1.5 parts of hydroquinone, 8.86 parts of dimethylbenzylamine and 2 parts of tert-butyl catechol in parts by weight.
Preferably, the preparation method of the modified epoxy polyacrylate comprises the following steps: sequentially adding a certain formula amount of epoxy resin, methacrylic acid, acrylic acid, hydroquinone and dimethylbenzylamine into a reaction bottle provided with a thermometer, a stirrer and a reflux condenser, heating the reaction system to 100 ℃ after the addition, reacting for 50-70min by stirring, gradually reacting for 4-6h at 110-120 ℃, when the epoxy equivalent of the system reaches 2000-2400 and the acid value is less than 5, starting to cool, adding tert-butylcatechol when the temperature is reduced to 80 ℃, continuously stirring to 50 ℃, and discharging to obtain the modified epoxy polyacrylate.
Further, the preparation method of the modified epoxy polyacrylate comprises the following steps: sequentially adding a certain formula amount of epoxy resin, methacrylic acid, acrylic acid, hydroquinone and dimethylbenzylamine into a reaction bottle provided with a thermometer, a stirrer and a reflux condenser, heating the reaction system to 100 ℃ after the addition, reacting for 60min by stirring, gradually heating to 110-120 ℃ for reacting for 5h, when the epoxy equivalent of the system reaches 2000-2400 and the acid value is less than 5, starting to cool, adding tert-butyl catechol when the temperature is reduced to 80 ℃, continuously stirring to 50 ℃, and discharging to obtain the modified epoxy polyacrylate.
According to the preparation method of the modified epoxy polyacrylate, after the epoxy resin and the grafting monomer are mixed, ring-opening grafting reaction is carried out under the action of dimethylbenzylamine, after the theoretical epoxy equivalent is achieved, the temperature is reduced to room temperature, and the modified epoxy polyacrylate with 10% -20% of epoxy groups reserved in partial ring opening is obtained.
In order to improve the curing efficiency, the applicant finds that the epoxy resin is modified by adopting a grafting monomer in the realization process, the epoxy equivalent of the adopted epoxy resin is 170-200, particularly the epoxy equivalent of the adopted epoxy resin is 180-190, and the mass ratio of the grafting monomer to the epoxy resin is 1: (4-5.5) the grafting monomer is selected from one or a mixture of two of methacrylic acid and acrylic acid; further, epoxy resin, methacrylic acid, acrylic acid, hydroquinone and dimethylbenzylamine with certain formula amount are sequentially added into a reaction bottle provided with a thermometer, a stirrer and a reflux condenser, after the addition, stirring is started to heat the reaction system to 100 ℃, the reaction is carried out for 50-70min, the reaction is carried out gradually to 110-120 ℃ for 4-6h, when the epoxy equivalent of the system reaches 2000-2400 and the acid value is less than 5, the temperature is reduced, tertiary butyl catechol is added when the temperature is reduced to 80 ℃, stirring is continued to 50 ℃, and discharging is carried out to obtain modified epoxy polyacrylate, so that the acrylic acid double bond is connected into an epoxy molecular structure, the modified epoxy polyacrylate with 10-20% of epoxy groups which are partially opened is obtained, the cross-linking curing structure of the modified epoxy polyacrylate is formed under the dual curing conditions of light and heat, and the curing efficiency is improved.
Preferably, the monofunctional acrylate is selected from one or more of hydroxypropyl methacrylate, hydroxyethyl methacrylate, isobornyl methacrylate, (3, 5-trimethylcyclohexyl) methacrylate, hydroxyethyl acrylate, hydroxypropyl acrylate, isobornyl acrylate, cycloaliphatic methacrylate, dicyclopentenyl acrylate.
Further, the monofunctional acrylate is at least one of hydroxypropyl acrylate, hydroxyethyl methacrylate and hydroxypropyl methacrylate.
The CAS number of the hydroxypropyl acrylate is 2918-23-2.
The CAS number of the hydroxyethyl methacrylate is 868-77-9.
The CAS number of the hydroxypropyl methacrylate is 27813-02-1.
Preferably, the difunctional acrylates are selected from one or more of 1, 4-butanediol diacrylate, 1, 4-butanediol dimethacrylate, 1, 6-hexanediol dimethacrylate, 2-methyl-1, 3-propanediol diacrylate, 3-methyl-1, 5-pentanediol diacrylate, ethylene glycol dimethacrylate, dipropylene glycol diacrylate, tripropylene glycol dimethacrylate, neopentyl glycol diacrylate, propoxylated neopentyl glycol diacrylate.
Further, the difunctional acrylate is at least one of propoxylated neopentyl glycol diacrylate, dipropylene glycol diacrylate and 1, 4-butanediol diacrylate.
The CAS number of the propoxylated neopentyl glycol diacrylate is 84170-74-1.
The CAS number of the dipropylene glycol diacrylate is 57472-68-1.
The CAS number of the 1, 4-butanediol diacrylate is 1070-70-8.
Preferably, the multifunctional acrylate is selected from one or more of ethoxylated trimethylolpropane trimethacrylate, ethoxylated pentaerythritol tetraacrylate, trimethylolpropane triacrylate, trimethylolpropane trimethacrylate, propoxylated glycerol triacrylate.
Further, the multifunctional acrylate is at least one of trimethylolpropane triacrylate, trimethylolpropane trimethacrylate, trimethylolpropane triacrylate and propoxylated glycerol triacrylate.
The CAS number of the trimethylolpropane triacrylate is 15625-89-5.
The CAS number of the trimethylolpropane trimethacrylate is 3290-92-4.
The CAS number of the trimethylolpropane triacrylate is 15625-89-5.
The CAS number of the propoxylated triglyceride is 52408-84-1.
Preferably, the photoinitiator is selected from one or more mixtures of (2, 4, 6-trimethylbenzoyl) diphenyl phosphine oxide, ethyl 2,4, 6-trimethylbenzoyl phenylphosphonate, phenyl bis (2, 4, 6-trimethylbenzoyl) phosphine oxide, 1-hydroxycyclohexylphenyl ketone, benzophenone, diphenylethanone, 2, 4-dihydroxybenzophenone, 2-hydroxy-2-methyl-1-phenylpropion, 2-methyl-2- (4-morpholino) -1- [4- (methylthio) phenyl ] -1-propanone, isopropylthioxanthone, benzoin dimethyl ether, triaryliodonium hexafluoroantimonate triarylsulfonium.
Further, the photoinitiator is at least one of (2, 4, 6-trimethylbenzoyl) diphenyl phosphine oxide, phenyl bis (2, 4, 6-trimethylbenzoyl) phosphine oxide, 2-hydroxy-2-methyl-1-phenylpropion, ethyl 2,4, 6-trimethylbenzoyl phenyl phosphonate, diphenyl ketone and isopropyl thioxanthone.
The CAS number of the (2, 4, 6-trimethylbenzoyl) diphenyl phosphine oxide is 75980-60-8.
The CAS number of the phenyl bis (2, 4, 6-trimethylbenzoyl) phosphine oxide is 162881-26-7.
The CAS number of the 2-hydroxy-2-methyl-1-phenylpropionic acid is 7473-98-5.
The CAS number of the ethyl 2,4, 6-trimethylbenzoyl phenylphosphonate is 84434-11-7.
The CAS number of the benzophenone is 119-61-9.
The CAS number of the isopropyl thioxanthone is 5495-84-1.
Preferably, the thermal initiator is selected from one or more of azobisisobutyronitrile, azodiisoheptonitrile, aromatic amine, benzoyl peroxide, dicumyl peroxide, tert-butyl peroxybenzoate.
Further, the thermal initiator is at least one of aromatic amine and benzoyl peroxide.
In order to improve the tensile strength and bending strength of the photo-curing adhesive for repairing the fan blade and the bonding strength between the photo-curing adhesive and a repairing matrix material in the application process and the curing efficiency of the photo-curing adhesive, the applicant finds that the modified epoxy polyacrylate prepared by the method and the tetrafunctional glycidol amine type epoxy resin, the monofunctional acrylate, the difunctional acrylate and the multifunctional acrylate can obtain higher tensile strength and bending strength under the action of the photoinitiator and the thermal initiator and the bonding strength between the photo-curing adhesive and the repairing matrix material in the application process, and the curing efficiency of the photo-curing adhesive is also greatly improved, and the possible reasons are that the modified epoxy polyacrylate has acrylic double bonds, part of epoxy groups are reserved, the curing rate of the acrylic double bonds under the photo-curing condition is high, heat is generated in the curing process, heat is provided for the crosslinking curing of the epoxy groups, the photo-thermal dual curing structure is realized without the need of carrying out the thermal curing, and the bonding force between the epoxy groups and the fan blade taking the epoxy resin as the base material is high; the viscosity of the modified epoxy polyacrylate can be reduced by adding the monofunctional acrylate, the difunctional acrylate and the multifunctional acrylate, the processing performance of the modified epoxy polyacrylate is improved, and the monofunctional acrylate, the difunctional acrylate, the multifunctional acrylate and the modified epoxy polyacrylate further generate a crosslinking curing structure under the action of the photoinitiator and the thermal initiator, so that the tensile strength and the bending strength of the photocuring adhesive for repairing the fan blade, the adhesive strength between the photocuring adhesive and a repairing matrix material in the application process and the curing efficiency of the photocuring adhesive are improved.
The application provides a preparation method of a photo-curing adhesive for repairing fan blades, which comprises the following steps: the photo-curing adhesive is prepared by mixing tetrafunctional glycidol amine type epoxy resin, modified epoxy polyacrylate, monofunctional acrylate, difunctional acrylate, polyfunctional acrylate, photoinitiator and thermal initiator.
The third aspect of the application provides application of a photo-curing adhesive for repairing fan blades, which is cured and molded in an application process under the irradiation of ultraviolet light with the wavelength of 350-420nm for 15-20 min.
The photocuring adhesive for repairing the fan blade is applied to the part of the fan which needs to be repaired by adopting a vacuum introduction process or a manual pasting process in the application process.
Advantageous effects
1. According to the application, the preparation of the modified epoxy polyacrylic acid can realize high curing rate of acrylic acid double bonds under the photo-curing condition, heat is generated in the curing process, heat can be provided for the crosslinking and curing of epoxy groups, and the photo-thermal dual-curing crosslinking structure is obtained without heating and curing.
2. The photocuring adhesive for repairing the fan blade, which is prepared by the application, has the advantages that the repairing method is convenient and fast in the application process, the photocuring adhesive does not need to be heated and cured, and the photocuring adhesive can be cured and molded under the illumination for 15-20 min; compared with the general epoxy repair process, the repair and curing process of the general epoxy resin needs 6-24 hours.
3. According to the application, the photo-curing adhesive with high tensile strength and bending strength is obtained by adopting the coordination effect of the modified epoxy polyacrylic acid and the tetrafunctional glycidol amine type epoxy resin and the monofunctional acrylic ester, the difunctional acrylic ester and the polyfunctional acrylic ester.
4. The photo-curing adhesive for repairing the fan blade prepared by the method has high bonding force with the fan blade of the epoxy resin substrate, and can improve the bending strength of the repaired and molded fan blade substrate.
5. According to the application, the viscosity of the modified epoxy polyacrylic acid can be diluted and the processability of the modified epoxy polyacrylic acid can be improved by adopting the monofunctional acrylate, the difunctional acrylate and the polyfunctional acrylate to carry out the coordination action with the modified epoxy polyacrylic acid.
6. The photocuring adhesive for repairing the fan blade is superior to the mechanical property of the general epoxy resin, and can be subjected to light curing by using a UV lamp, the curing time can be shortened to 15 minutes, and the strength and the performance of the repaired composite material reach and exceed the strength of repairing the fan blade by using the general epoxy resin through verification, so that the photocuring adhesive has a good development prospect.
Drawings
FIG. 1 is a diagram showing a process of applying a photo-curable adhesive to uniaxial glass cloth and performing a curing experiment.
Detailed Description
Example 1
The preparation raw materials of the modified epoxy polyacrylate comprise, by weight, 3750 parts of epoxy resin with an epoxy equivalent of 180-190, 709 parts of methacrylic acid, 72 parts of acrylic acid, 1.5 parts of hydroquinone, 8.86 parts of dimethylbenzylamine and 2 parts of tert-butyl catechol.
The manufacturer of the epoxy resin is Nanya plastic industry Co., ltd, and the model is NPEL-127.
The CAS number of the methacrylic acid is 79-41-4.
The acrylic acid has a CAS number of 79-10-7.
The CAS number of the hydroquinone is 123-31-9.
The CAS number of the dimethylbenzylamine is 585-32-0.
The CAS number of the tert-butyl catechol is 27213-78-1.
The preparation method of the modified epoxy polyacrylate comprises the following steps: adding 3750 parts of epoxy resin with the epoxy equivalent of 180-190, 709 parts of methacrylic acid, 72 parts of acrylic acid, 1.5 parts of hydroquinone and 8.86 parts of dimethylbenzylamine into a reaction bottle provided with a thermometer, a stirrer and a reflux condenser tube in sequence, after the addition, heating the reaction system to 100 ℃, reacting for 60min, gradually reacting for 5h at 110 ℃, when the epoxy equivalent of the system reaches 2000-2400 and the acid value is less than 5mgKOH/g, starting cooling, adding 2 parts of tert-butyl catechol when the temperature is reduced to 80 ℃, continuously stirring to 50 ℃, and discharging to obtain the modified epoxy polyacrylate.
Acid number was measured according to GB/T6743-2008 standard method.
Example 2
The first aspect of the present embodiment provides a photocurable adhesive for repairing a fan blade, which is prepared from the following raw materials: 2 parts of tetrafunctional glycidol amine type epoxy resin, 48 parts of modified epoxy polyacrylate, 25 parts of monofunctional acrylate, 15 parts of difunctional acrylate, 10 parts of multifunctional acrylate, 1 part of photoinitiator and 1 part of thermal initiator.
The manufacturer of the tetrafunctional glycidylamine type epoxy resin is Shanghai Hua Yi resin Co., ltd, and the model AG601.
The modified epoxy polyacrylate is the modified epoxy polyacrylate prepared in example 1.
The monofunctional acrylate is hydroxypropyl acrylate.
The CAS number of the hydroxypropyl acrylate is 2918-23-2.
The difunctional acrylate is propoxylated neopentyl glycol diacrylate.
The CAS number of the propoxylated neopentyl glycol diacrylate is 84170-74-1.
The multifunctional acrylate is trimethylolpropane triacrylate.
The CAS number of the trimethylolpropane triacrylate is 15625-89-5.
The photoinitiator is a mixture of 2,4, 6-trimethylbenzoyl phenyl ethyl phosphonate and isopropyl thioxanthone, and the weight ratio of the photoinitiator to the isopropyl thioxanthone is 1:1.
The CAS number of the ethyl 2,4, 6-trimethylbenzoyl phenylphosphonate is 84434-11-7.
The CAS number of the isopropyl thioxanthone is 5495-84-1.
The thermal initiator is aromatic amine.
The manufacturer of the aromatic amine is Shanghai Hua Yi resin Co., ltd, and the model is AMI-1.
The second aspect of the embodiment provides a preparation method of a photo-curing adhesive for repairing fan blades, which comprises the following steps: the photo-curing adhesive is prepared by mixing tetrafunctional glycidol amine type epoxy resin, modified epoxy polyacrylate, monofunctional acrylate, difunctional acrylate, polyfunctional acrylate, photoinitiator and thermal initiator.
The third aspect of the embodiment provides an application of a photo-curing adhesive for repairing fan blades, wherein in the application process of the photo-curing adhesive for repairing fan blades, 38% of the photo-curing adhesive for repairing fan blades and 62% of single-axis glass fiber cloth prepared by the embodiment are taken according to weight percentage, the photo-curing adhesive is repaired to the surface of the single-axis glass fiber cloth by adopting a vacuum introducing process, and curing and forming are carried out under the irradiation of ultraviolet light with the wavelength of 395nm for 15 min.
The energy density of the ultraviolet light source irradiated to the surface of the photo-curing adhesive is 40mw/cm 2 。
The specification of the uniaxial glass fiber cloth is 1250g/m 2 The model is E8-UD1250-390, and the purchase manufacturer is Zhejiang Heng stone fiber base company.
The vacuum introducing process comprises the following processing steps:
A1. cleaning a die, and then coating a release agent on the surface of the die;
A2. spreading 2 layers of E8-UD1250-390 glass fiber reinforced materials on the surface of a mould, and shearing redundant fibers by scissors after the reinforced materials are spread;
A3. covering the whole glass fiber reinforced material with a release cloth, wherein the edge of the glass fiber reinforced material is about 1mm more;
A4. spreading a guide net on the surface of the release cloth, wherein the distance between the guide net and the glass fiber reinforced material is about 3 cm to 5cm, namely the size of the guide net is slightly smaller than that of the glass fiber reinforced material;
A5. placing a solenoid as a resin runner and a vacuumizing tube at corresponding positions in a die cavity according to a pre-designed runner, and passing a silicon rubber nozzle through the solenoid;
A6. after the pipeline is arranged, a vacuum bag film is paved on the surface, and the middle sections of four sides are lapped into a convex form by using a sealing adhesive tape in the paving process, so that the bridging phenomenon of the vacuum bag film is prevented;
A7. the honeycomb duct is inserted into a silica gel joint mouth of the resin and the vacuumizing end and sealed by sealant;
A8. the light-entering curing adhesive end honeycomb duct is clamped by the pipe clamp, so that a sealing environment is ensured to be created. Opening a vacuum pump, pumping air in a vacuum bag, temporarily turning off the vacuum pump, clamping a vacuumizing end guide pipe by using a pipe clamp, and ensuring that a pointer of the vacuum pump is unchanged after half an hour;
A9. the vacuum pump is kept running, the pipe clamp on the light-cured adhesive flow guide pipe is gently unscrewed, and the light-cured adhesive is sucked into the flow guide pipe to start flow guide. When the photo-curing adhesive reaches the photo-curing adhesive collector, the guide pipe at the feed port end is closed by the pipe clamp, and the guide is stopped.
Example 3
The first aspect of the present embodiment provides a photocurable adhesive for repairing a fan blade, which is prepared from the following raw materials: 5 parts of tetrafunctional glycidol amine type epoxy resin, 50 parts of modified epoxy polyacrylate, 20 parts of monofunctional acrylate, 15 parts of difunctional acrylate, 10 parts of multifunctional acrylate, 1 part of photoinitiator and 0.5 part of thermal initiator.
The manufacturer of the tetrafunctional glycidylamine type epoxy resin is Shanghai Hua Yi resin Co., ltd, and the model AG601.
The modified epoxy polyacrylate is the modified epoxy polyacrylate prepared in example 1.
The monofunctional acrylate is hydroxyethyl methacrylate.
The CAS number of the hydroxyethyl methacrylate is 868-77-9.
The difunctional acrylate is dipropylene glycol diacrylate.
The CAS number of the dipropylene glycol diacrylate is 57472-68-1.
The multifunctional acrylate is trimethylolpropane trimethacrylate.
The CAS number of the trimethylolpropane trimethacrylate is 3290-92-4.
The photoinitiator is a mixture of phenyl bis (2, 4, 6-trimethylbenzoyl) phosphine oxide and 2-hydroxy-2-methyl-1-phenylpropionic acid, and the weight ratio of the photoinitiator to the mixture is 1:1.
The CAS number of the phenyl bis (2, 4, 6-trimethylbenzoyl) phosphine oxide is 162881-26-7.
The CAS number of the 2-hydroxy-2-methyl-1-phenylpropionic acid is 7473-98-5.
The thermal initiator is benzoyl peroxide.
The CAS number of the benzoyl peroxide is 94-36-0.
The second aspect of the embodiment provides a preparation method of a photo-curing adhesive for repairing fan blades, which comprises the following steps: the photo-curing adhesive is prepared by mixing tetrafunctional glycidol amine type epoxy resin, modified epoxy polyacrylate, monofunctional acrylate, difunctional acrylate, polyfunctional acrylate, photoinitiator and thermal initiator.
The third aspect of the embodiment provides an application of a photo-curing adhesive for repairing fan blades, wherein in the application process of the photo-curing adhesive for repairing fan blades, 38% of the photo-curing adhesive for repairing fan blades and 62% of single-axis glass fiber cloth prepared by the embodiment are taken according to weight percentage, the photo-curing adhesive is repaired to the surface of the single-axis glass fiber cloth by adopting a vacuum introducing process, and curing and forming are carried out under the irradiation of ultraviolet light with the wavelength of 395nm for 15 min.
The processing steps of the vacuum introduction process are the same as in example 2.
The energy density of the ultraviolet light source irradiated to the surface of the photo-curing adhesive is 40mw/cm 2 。
The specification of the uniaxial glass fiber cloth is 1250g/m 2 Model E8-UD1250-390, the manufacturer is Zhejiang Heng stone fiber base company
Example 4
The first aspect of the present embodiment provides a photocurable adhesive for repairing a fan blade, which is prepared from the following raw materials: 45 parts of modified epoxy polyacrylate, 25 parts of monofunctional acrylate, 20 parts of difunctional acrylate, 10 parts of polyfunctional acrylate and 1 part of photoinitiator.
The modified epoxy polyacrylate is the modified epoxy polyacrylate prepared in example 1.
The monofunctional acrylate is hydroxypropyl methacrylate.
The CAS number of the hydroxypropyl methacrylate is 27813-02-1.
The difunctional acrylate is a mixture of 1, 4-butanediol diacrylate and propoxylated neopentyl glycol diacrylate, and the weight ratio of the difunctional acrylate to the propoxylated neopentyl glycol diacrylate is 1:1.
The CAS number of the 1, 4-butanediol diacrylate is 1070-70-8.
The CAS number of the propoxylated neopentyl glycol diacrylate is 84170-74-1.
The multifunctional acrylate is a mixture of trimethylolpropane triacrylate and propoxylated glycerol triacrylate, and the weight ratio of the multifunctional acrylate to the propoxylated glycerol triacrylate is 1:1.
The CAS number of the trimethylolpropane triacrylate is 15625-89-5.
The CAS number of the propoxylated triglyceride is 52408-84-1.
The photoinitiator is a mixture of ethyl 2,4, 6-trimethylbenzoyl phenylphosphonate and benzophenone, and the weight ratio of the photoinitiator to the benzophenone is 1:1.
The CAS number of the ethyl 2,4, 6-trimethylbenzoyl phenylphosphonate is 84434-11-7.
The CAS number of the benzophenone is 119-61-9.
The second aspect of the embodiment provides a preparation method of a photo-curing adhesive for repairing fan blades, which comprises the following steps: and mixing the modified epoxy polyacrylate, the monofunctional acrylate, the difunctional acrylate, the polyfunctional acrylate and the photoinitiator to obtain the photo-curing adhesive.
The third aspect of the embodiment provides an application of a photo-curing adhesive for repairing fan blades, wherein in the application process of the photo-curing adhesive for repairing fan blades, 40% of the photo-curing adhesive for repairing fan blades and 60% of single-axis glass fiber cloth prepared by the embodiment are taken according to weight percentage, the photo-curing adhesive is repaired to the surface of the single-axis glass fiber cloth by a hand lay-up process, and curing and forming are carried out under the irradiation of ultraviolet light with the wavelength of 395nm for 15 min.
The energy density of the ultraviolet light source irradiated to the surface of the photo-curing adhesive is 40mw/cm 2 。
The specification of the uniaxial glass fiber cloth is 1250g/m 2 The model is E8-UD1250-390, and the purchase manufacturer is Zhejiang Heng stone fiber base company.
The processing steps of the hand lay-up process comprise the following steps:
s1, cleaning a die, and then coating a release agent on the surface of the die;
s2, pouring a photo-curing adhesive on the surface of the die, leveling by using a roller, paving 1 layer of E8-UD1250-390 glass fiber reinforced material, and repeating the operation once again after the roller is even until 2 layers of E8-UD1250-390 glass fiber reinforced material are paved;
s3, covering the PET film on the surface.
Comparative example 1
The conventional bisphenol A type epoxy resin for repairing the blades is adopted to replace the photo-curing adhesive for repairing the blades of the fans.
The manufacturer of the conventional blade repair bisphenol A type epoxy resin is model NPEL-128 of Nanya plastic industry Co., ltd.
The embodiment provides application of bisphenol A epoxy resin for repairing conventional blades, 40 parts of bisphenol A epoxy resin agent for repairing conventional blades and 60 parts of uniaxial glass fiber cloth are taken according to parts by weight in the application process of the bisphenol A epoxy resin for repairing conventional blades, the bisphenol A epoxy resin agent for repairing conventional blades is repaired to the surface of the uniaxial glass fiber cloth by adopting a manual pasting process, and the surface of the uniaxial glass fiber cloth is heated for curing and molding under the conditions of heating at 65 ℃ for 2 hours and heating at 75 ℃ for 4 hours.
The specification of the uniaxial glass fiber cloth is 1250g/m 2 The model is E8-UD1250-390, and the purchase manufacturer is Zhejiang Heng stone fiber base company.
The processing steps of the hand lay-up process are the same as in example 4.
Performance testing
Performance test of photo-curing adhesive for repairing fan blade
The photo-curable adhesives for fan blade repair prepared in examples 2 to 4 were tested for tensile strength, tensile modulus, flexural strength, flexural modulus with the conventional bisphenol a type epoxy resin for blade repair as comparative examples, and the test results are shown in table 1.
TABLE 1
| Test item | Example 1 | Example 2 | Example 3 | Comparative example 1 | Test standard |
| Tensile Strength/MPa | 90.6 | 91.7 | 83.5 | 69.1 | GB/T 2567-2021 |
| Tensile modulus/MPa | 4066 | 4068 | 3996 | 3092 | GB/T 2567-2021 |
| Flexural Strength/MPa | 147 | 140 | 136 | 115 | GB/T 2567-2021 |
| Flexural modulus/MPa | 3864 | 3842 | 3934 | 3192 | GB/T 2567-2021 |
Secondly, testing application performance of photo-curing adhesive for repairing fan blade
Curing under different conditions is carried out on the photo-curing adhesive for repairing fan blades prepared in the examples 2-4 and bisphenol A type epoxy resin for repairing conventional blades serving as comparative examples on single-shaft glass fiber cloth, and the cured single-shaft glass fiber cloth is tested for 90-degree tensile strength, 0-degree bending strength, interlayer shearing strength and lap shearing strength, and the test results are shown in Table 2; the photo-curing adhesive is applied to uniaxial glass fiber cloth and the curing experimental process is shown in fig. 1.
TABLE 2
Claims (10)
1. A photocuring adhesive for repairing fan blades is characterized by comprising the following preparation raw materials: 0-5 parts of glycidol amine type epoxy resin, 40-50 parts of modified epoxy polyacrylate, 20-30 parts of monofunctional acrylate, 10-20 parts of difunctional acrylate, 5-10 parts of polyfunctional acrylate, 0.5-2 parts of photoinitiator and 0.5-2 parts of thermal initiator.
2. The photocurable adhesive for repairing a fan blade according to claim 1, wherein the raw materials for preparing the modified epoxy polyacrylate comprise an epoxy resin and a grafting monomer, and the epoxy equivalent of the epoxy resin is 170-200.
3. The photocurable adhesive for repair of fan blades according to claim 2, wherein the grafting monomer is selected from one or a mixture of two of methacrylic acid and acrylic acid.
4. The photocurable adhesive for repairing a fan blade according to claim 2, wherein the mass ratio of the grafting monomer to the epoxy resin is 1: (4-5.5).
5. The photocurable adhesive for repairing a fan blade of any one of claims 1-4, wherein the monofunctional acrylate is selected from the group consisting of hydroxypropyl methacrylate, hydroxyethyl methacrylate, isobornyl methacrylate, (3, 5-trimethylcyclohexyl) methacrylate, hydroxyethyl acrylate, hydroxypropyl acrylate, isobornyl acrylate, and a mixture of one or more of dicyclopentenyl acrylates.
6. The photocurable adhesive for repairing fan blades of claim 1, wherein the difunctional acrylate is selected from one or more of 1, 4-butanediol diacrylate, 1, 4-butanediol dimethacrylate, 1, 6-hexanediol dimethacrylate, 2-methyl-1, 3-propanediol diacrylate, 3-methyl-1, 5-pentanediol diacrylate, ethylene glycol dimethacrylate, dipropylene glycol diacrylate, tripropylene glycol dimethacrylate, neopentyl glycol diacrylate, propoxylated neopentyl glycol diacrylate.
7. The photocurable adhesive for repairing a fan blade of claim 1, wherein the multifunctional acrylate is selected from one or more of ethoxylated trimethylolpropane trimethacrylate, ethoxylated pentaerythritol tetraacrylate, trimethylolpropane triacrylate, trimethylolpropane trimethacrylate, propoxylated glycerol triacrylate.
8. The photocurable adhesive for fan blade repair of claim 1, wherein the photoinitiator is selected from one or more of (2, 4, 6-trimethylbenzoyl) diphenyl phosphine oxide, ethyl 2,4, 6-trimethylbenzoyl phenylphosphonate, phenyl bis (2, 4, 6-trimethylbenzoyl) phosphine oxide, 1-hydroxycyclohexylphenyl ketone, benzophenone, diphenylethanone, 2, 4-dihydroxybenzophenone, 2-hydroxy-2-methyl-1-phenylpropion, 2-methyl-2- (4-morpholino) -1- [4- (methylthio) phenyl ] -1-propanone, isopropylthioxanthone, benzoin dimethyl ether, triaryliodonium salt triarylsulfonium hexafluoroantimonate.
9. A method of preparing a photocurable adhesive for repair of fan blades as claimed in any one of claims 1-8, comprising the steps of: the photo-curing adhesive is prepared by mixing tetrafunctional glycidol amine type epoxy resin, modified epoxy polyacrylate, monofunctional acrylate, difunctional acrylate, polyfunctional acrylate, photoinitiator and thermal initiator.
10. Use of the photocurable adhesive for repairing a fan blade according to any one of claims 1-8, wherein the photocurable adhesive for repairing a fan blade is cured and molded in an application process under an ultraviolet light source with a wavelength of 350-420nm for 15-20 min.
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| CN202310602025.8A CN116804135A (en) | 2023-05-25 | 2023-05-25 | Photo-curing adhesive for repairing fan blade, and preparation method and application thereof |
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| CN202310602025.8A CN116804135A (en) | 2023-05-25 | 2023-05-25 | Photo-curing adhesive for repairing fan blade, and preparation method and application thereof |
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