CN117659928A - Quick-curing bi-component polyurethane structural adhesive for power battery adhesion and preparation method thereof - Google Patents
Quick-curing bi-component polyurethane structural adhesive for power battery adhesion and preparation method thereof Download PDFInfo
- Publication number
- CN117659928A CN117659928A CN202311627344.0A CN202311627344A CN117659928A CN 117659928 A CN117659928 A CN 117659928A CN 202311627344 A CN202311627344 A CN 202311627344A CN 117659928 A CN117659928 A CN 117659928A
- Authority
- CN
- China
- Prior art keywords
- component
- parts
- power battery
- structural adhesive
- isocyanate
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 230000001070 adhesive effect Effects 0.000 title claims abstract description 50
- 239000000853 adhesive Substances 0.000 title claims abstract description 49
- 229920002635 polyurethane Polymers 0.000 title claims abstract description 33
- 239000004814 polyurethane Substances 0.000 title claims abstract description 33
- 238000002360 preparation method Methods 0.000 title abstract description 12
- 229920005862 polyol Polymers 0.000 claims abstract description 37
- 150000003077 polyols Chemical class 0.000 claims abstract description 37
- 239000003063 flame retardant Substances 0.000 claims abstract description 21
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 claims abstract description 20
- 239000004721 Polyphenylene oxide Substances 0.000 claims abstract description 20
- 229920000570 polyether Polymers 0.000 claims abstract description 20
- 125000003118 aryl group Chemical group 0.000 claims abstract description 18
- 239000003054 catalyst Substances 0.000 claims abstract description 12
- 229920001730 Moisture cure polyurethane Polymers 0.000 claims abstract description 9
- 239000003963 antioxidant agent Substances 0.000 claims abstract description 9
- 239000013008 thixotropic agent Substances 0.000 claims abstract description 8
- 150000001412 amines Chemical class 0.000 claims abstract description 6
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 5
- 239000007822 coupling agent Substances 0.000 claims abstract description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 5
- 230000000655 anti-hydrolysis Effects 0.000 claims abstract description 3
- 238000003756 stirring Methods 0.000 claims description 26
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 claims description 22
- 229910052757 nitrogen Inorganic materials 0.000 claims description 19
- 239000002994 raw material Substances 0.000 claims description 16
- 238000010438 heat treatment Methods 0.000 claims description 14
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 12
- -1 N-diethylpiperazine Inorganic materials 0.000 claims description 12
- 238000001816 cooling Methods 0.000 claims description 12
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 10
- 239000004359 castor oil Substances 0.000 claims description 10
- 235000019438 castor oil Nutrition 0.000 claims description 10
- 229910021485 fumed silica Inorganic materials 0.000 claims description 10
- 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 10
- 238000000034 method Methods 0.000 claims description 9
- UPMLOUAZCHDJJD-UHFFFAOYSA-N 4,4'-Diphenylmethane Diisocyanate Chemical compound C1=CC(N=C=O)=CC=C1CC1=CC=C(N=C=O)C=C1 UPMLOUAZCHDJJD-UHFFFAOYSA-N 0.000 claims description 8
- 230000003078 antioxidant effect Effects 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
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 claims description 8
- WNROFYMDJYEPJX-UHFFFAOYSA-K aluminium hydroxide Chemical compound [OH-].[OH-].[OH-].[Al+3] WNROFYMDJYEPJX-UHFFFAOYSA-K 0.000 claims description 7
- 229910001377 aluminum hypophosphite Inorganic materials 0.000 claims description 7
- 239000012948 isocyanate Substances 0.000 claims description 7
- 150000002513 isocyanates Chemical class 0.000 claims description 7
- 229920005906 polyester polyol Polymers 0.000 claims description 7
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 claims description 6
- SJRJJKPEHAURKC-UHFFFAOYSA-N N-Methylmorpholine Chemical compound CN1CCOCC1 SJRJJKPEHAURKC-UHFFFAOYSA-N 0.000 claims description 6
- 229910052751 metal Inorganic materials 0.000 claims description 6
- 239000002184 metal Substances 0.000 claims description 6
- 239000002808 molecular sieve Substances 0.000 claims description 6
- URGAHOPLAPQHLN-UHFFFAOYSA-N sodium aluminosilicate Chemical compound [Na+].[Al+3].[O-][Si]([O-])=O.[O-][Si]([O-])=O URGAHOPLAPQHLN-UHFFFAOYSA-N 0.000 claims description 6
- UKLDJPRMSDWDSL-UHFFFAOYSA-L [dibutyl(dodecanoyloxy)stannyl] dodecanoate Chemical compound CCCCCCCCCCCC(=O)O[Sn](CCCC)(CCCC)OC(=O)CCCCCCCCCCC UKLDJPRMSDWDSL-UHFFFAOYSA-L 0.000 claims description 5
- 229910052797 bismuth Inorganic materials 0.000 claims description 5
- 239000012975 dibutyltin dilaurate Substances 0.000 claims description 5
- GIWQSPITLQVMSG-UHFFFAOYSA-N 1,2-dimethylimidazole Chemical compound CC1=NC=CN1C GIWQSPITLQVMSG-UHFFFAOYSA-N 0.000 claims description 4
- JMFLYAQVWMIMKC-UHFFFAOYSA-N 3-(2-aminoethylamino)propane-1,1,1,3-tetrol Chemical compound NCCNC(O)CC(O)(O)O JMFLYAQVWMIMKC-UHFFFAOYSA-N 0.000 claims description 4
- LGRFSURHDFAFJT-UHFFFAOYSA-N Phthalic anhydride Natural products C1=CC=C2C(=O)OC(=O)C2=C1 LGRFSURHDFAFJT-UHFFFAOYSA-N 0.000 claims description 4
- DNIAPMSPPWPWGF-UHFFFAOYSA-N Propylene glycol Chemical compound CC(O)CO DNIAPMSPPWPWGF-UHFFFAOYSA-N 0.000 claims description 4
- KKEYFWRCBNTPAC-UHFFFAOYSA-N Terephthalic acid Chemical compound OC(=O)C1=CC=C(C(O)=O)C=C1 KKEYFWRCBNTPAC-UHFFFAOYSA-N 0.000 claims description 4
- 239000002253 acid Substances 0.000 claims description 4
- WNLRTRBMVRJNCN-UHFFFAOYSA-N adipic acid Chemical compound OC(=O)CCCCC(O)=O WNLRTRBMVRJNCN-UHFFFAOYSA-N 0.000 claims description 4
- PXKLMJQFEQBVLD-UHFFFAOYSA-N bisphenol F Chemical compound C1=CC(O)=CC=C1CC1=CC=C(O)C=C1 PXKLMJQFEQBVLD-UHFFFAOYSA-N 0.000 claims description 4
- WERYXYBDKMZEQL-UHFFFAOYSA-N butane-1,4-diol Chemical compound OCCCCO WERYXYBDKMZEQL-UHFFFAOYSA-N 0.000 claims description 4
- JHIWVOJDXOSYLW-UHFFFAOYSA-N butyl 2,2-difluorocyclopropane-1-carboxylate Chemical compound CCCCOC(=O)C1CC1(F)F JHIWVOJDXOSYLW-UHFFFAOYSA-N 0.000 claims description 4
- 238000006243 chemical reaction Methods 0.000 claims description 4
- XXMIOPMDWAUFGU-UHFFFAOYSA-N hexane-1,6-diol Chemical compound OCCCCCCO XXMIOPMDWAUFGU-UHFFFAOYSA-N 0.000 claims description 4
- QQVIHTHCMHWDBS-UHFFFAOYSA-N isophthalic acid Chemical compound OC(=O)C1=CC=CC(C(O)=O)=C1 QQVIHTHCMHWDBS-UHFFFAOYSA-N 0.000 claims description 4
- 239000007788 liquid Substances 0.000 claims description 4
- 239000000178 monomer Substances 0.000 claims description 4
- 229920001451 polypropylene glycol Polymers 0.000 claims description 4
- YPFDHNVEDLHUCE-UHFFFAOYSA-N propane-1,3-diol Chemical compound OCCCO YPFDHNVEDLHUCE-UHFFFAOYSA-N 0.000 claims description 4
- 239000002516 radical scavenger Substances 0.000 claims description 4
- CXMXRPHRNRROMY-UHFFFAOYSA-N sebacic acid Chemical compound OC(=O)CCCCCCCCC(O)=O CXMXRPHRNRROMY-UHFFFAOYSA-N 0.000 claims description 4
- 239000007787 solid Substances 0.000 claims description 4
- IMNIMPAHZVJRPE-UHFFFAOYSA-N triethylenediamine Chemical compound C1CN2CCN1CC2 IMNIMPAHZVJRPE-UHFFFAOYSA-N 0.000 claims description 4
- OEOIWYCWCDBOPA-UHFFFAOYSA-N 6-methyl-heptanoic acid Chemical compound CC(C)CCCCC(O)=O OEOIWYCWCDBOPA-UHFFFAOYSA-N 0.000 claims description 3
- JCXGWMGPZLAOME-UHFFFAOYSA-N bismuth atom Chemical compound [Bi] JCXGWMGPZLAOME-UHFFFAOYSA-N 0.000 claims description 3
- 239000000539 dimer Substances 0.000 claims description 3
- 238000002156 mixing Methods 0.000 claims description 3
- SLCVBVWXLSEKPL-UHFFFAOYSA-N neopentyl glycol Chemical compound OCC(C)(C)CO SLCVBVWXLSEKPL-UHFFFAOYSA-N 0.000 claims description 3
- 229940043375 1,5-pentanediol Drugs 0.000 claims description 2
- QSRJVOOOWGXUDY-UHFFFAOYSA-N 2-[2-[2-[3-(3-tert-butyl-4-hydroxy-5-methylphenyl)propanoyloxy]ethoxy]ethoxy]ethyl 3-(3-tert-butyl-4-hydroxy-5-methylphenyl)propanoate Chemical compound CC(C)(C)C1=C(O)C(C)=CC(CCC(=O)OCCOCCOCCOC(=O)CCC=2C=C(C(O)=C(C)C=2)C(C)(C)C)=C1 QSRJVOOOWGXUDY-UHFFFAOYSA-N 0.000 claims description 2
- QWGRWMMWNDWRQN-UHFFFAOYSA-N 2-methylpropane-1,3-diol Chemical compound OCC(C)CO QWGRWMMWNDWRQN-UHFFFAOYSA-N 0.000 claims description 2
- HVCNXQOWACZAFN-UHFFFAOYSA-N 4-ethylmorpholine Chemical compound CCN1CCOCC1 HVCNXQOWACZAFN-UHFFFAOYSA-N 0.000 claims description 2
- UXVMQQNJUSDDNG-UHFFFAOYSA-L Calcium chloride Chemical compound [Cl-].[Cl-].[Ca+2] UXVMQQNJUSDDNG-UHFFFAOYSA-L 0.000 claims description 2
- 239000005057 Hexamethylene diisocyanate Substances 0.000 claims description 2
- 239000005058 Isophorone diisocyanate Substances 0.000 claims description 2
- SVYKKECYCPFKGB-UHFFFAOYSA-N N,N-dimethylcyclohexylamine Chemical compound CN(C)C1CCCCC1 SVYKKECYCPFKGB-UHFFFAOYSA-N 0.000 claims description 2
- 235000019482 Palm oil Nutrition 0.000 claims description 2
- ALQSHHUCVQOPAS-UHFFFAOYSA-N Pentane-1,5-diol Chemical compound OCCCCCO ALQSHHUCVQOPAS-UHFFFAOYSA-N 0.000 claims description 2
- 239000002202 Polyethylene glycol Substances 0.000 claims description 2
- XBDQKXXYIPTUBI-UHFFFAOYSA-M Propionate Chemical compound CCC([O-])=O XBDQKXXYIPTUBI-UHFFFAOYSA-M 0.000 claims description 2
- 239000006087 Silane Coupling Agent Substances 0.000 claims description 2
- KDYFGRWQOYBRFD-UHFFFAOYSA-N Succinic acid Natural products OC(=O)CCC(O)=O KDYFGRWQOYBRFD-UHFFFAOYSA-N 0.000 claims description 2
- YSMRWXYRXBRSND-UHFFFAOYSA-N TOTP Chemical compound CC1=CC=CC=C1OP(=O)(OC=1C(=CC=CC=1)C)OC1=CC=CC=C1C YSMRWXYRXBRSND-UHFFFAOYSA-N 0.000 claims description 2
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 claims description 2
- ZJCCRDAZUWHFQH-UHFFFAOYSA-N Trimethylolpropane Chemical compound CCC(CO)(CO)CO ZJCCRDAZUWHFQH-UHFFFAOYSA-N 0.000 claims description 2
- ISKQADXMHQSTHK-UHFFFAOYSA-N [4-(aminomethyl)phenyl]methanamine Chemical compound NCC1=CC=C(CN)C=C1 ISKQADXMHQSTHK-UHFFFAOYSA-N 0.000 claims description 2
- REBHQKBZDKXDMN-UHFFFAOYSA-M [PH2]([O-])=O.C(C)[Al+]CC Chemical compound [PH2]([O-])=O.C(C)[Al+]CC REBHQKBZDKXDMN-UHFFFAOYSA-M 0.000 claims description 2
- KXBFLNPZHXDQLV-UHFFFAOYSA-N [cyclohexyl(diisocyanato)methyl]cyclohexane Chemical compound C1CCCCC1C(N=C=O)(N=C=O)C1CCCCC1 KXBFLNPZHXDQLV-UHFFFAOYSA-N 0.000 claims description 2
- 239000001361 adipic acid Substances 0.000 claims description 2
- 235000011037 adipic acid Nutrition 0.000 claims description 2
- DIZPMCHEQGEION-UHFFFAOYSA-H aluminium sulfate (anhydrous) Chemical compound [Al+3].[Al+3].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O DIZPMCHEQGEION-UHFFFAOYSA-H 0.000 claims description 2
- 239000000440 bentonite Substances 0.000 claims description 2
- 229910000278 bentonite Inorganic materials 0.000 claims description 2
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 claims description 2
- UQOQXWZPXFPRBR-UHFFFAOYSA-K bismuth dodecanoate Chemical compound [Bi+3].CCCCCCCCCCCC([O-])=O.CCCCCCCCCCCC([O-])=O.CCCCCCCCCCCC([O-])=O UQOQXWZPXFPRBR-UHFFFAOYSA-K 0.000 claims description 2
- NSPSPMKCKIPQBH-UHFFFAOYSA-K bismuth;7,7-dimethyloctanoate Chemical compound [Bi+3].CC(C)(C)CCCCCC([O-])=O.CC(C)(C)CCCCCC([O-])=O.CC(C)(C)CCCCCC([O-])=O NSPSPMKCKIPQBH-UHFFFAOYSA-K 0.000 claims description 2
- OWBTYPJTUOEWEK-UHFFFAOYSA-N butane-2,3-diol Chemical compound CC(O)C(C)O OWBTYPJTUOEWEK-UHFFFAOYSA-N 0.000 claims description 2
- KDYFGRWQOYBRFD-NUQCWPJISA-N butanedioic acid Chemical compound O[14C](=O)CC[14C](O)=O KDYFGRWQOYBRFD-NUQCWPJISA-N 0.000 claims description 2
- 239000001110 calcium chloride Substances 0.000 claims description 2
- 229910001628 calcium chloride Inorganic materials 0.000 claims description 2
- FOTKYAAJKYLFFN-UHFFFAOYSA-N decane-1,10-diol Chemical compound OCCCCCCCCCCO FOTKYAAJKYLFFN-UHFFFAOYSA-N 0.000 claims description 2
- 125000000524 functional group Chemical group 0.000 claims description 2
- RRAMGCGOFNQTLD-UHFFFAOYSA-N hexamethylene diisocyanate Chemical compound O=C=NCCCCCCN=C=O RRAMGCGOFNQTLD-UHFFFAOYSA-N 0.000 claims description 2
- 230000007062 hydrolysis Effects 0.000 claims description 2
- 238000006460 hydrolysis reaction Methods 0.000 claims description 2
- 125000002887 hydroxy group Chemical group [H]O* 0.000 claims description 2
- IQPQWNKOIGAROB-UHFFFAOYSA-N isocyanate group Chemical group [N-]=C=O IQPQWNKOIGAROB-UHFFFAOYSA-N 0.000 claims description 2
- NIMLQBUJDJZYEJ-UHFFFAOYSA-N isophorone diisocyanate Chemical compound CC1(C)CC(N=C=O)CC(C)(CN=C=O)C1 NIMLQBUJDJZYEJ-UHFFFAOYSA-N 0.000 claims description 2
- VTHJTEIRLNZDEV-UHFFFAOYSA-L magnesium dihydroxide Chemical compound [OH-].[OH-].[Mg+2] VTHJTEIRLNZDEV-UHFFFAOYSA-L 0.000 claims description 2
- 239000000347 magnesium hydroxide Substances 0.000 claims description 2
- 229910001862 magnesium hydroxide Inorganic materials 0.000 claims description 2
- 239000002540 palm oil Substances 0.000 claims description 2
- WXZMFSXDPGVJKK-UHFFFAOYSA-N pentaerythritol Chemical compound OCC(CO)(CO)CO WXZMFSXDPGVJKK-UHFFFAOYSA-N 0.000 claims description 2
- 229920000728 polyester Polymers 0.000 claims description 2
- 229920001223 polyethylene glycol Polymers 0.000 claims description 2
- 229960004063 propylene glycol Drugs 0.000 claims description 2
- 239000003549 soybean oil Substances 0.000 claims description 2
- 235000012424 soybean oil Nutrition 0.000 claims description 2
- KSBAEPSJVUENNK-UHFFFAOYSA-L tin(ii) 2-ethylhexanoate Chemical compound [Sn+2].CCCCC(CC)C([O-])=O.CCCCC(CC)C([O-])=O KSBAEPSJVUENNK-UHFFFAOYSA-L 0.000 claims description 2
- 238000004448 titration Methods 0.000 claims description 2
- DVKJHBMWWAPEIU-UHFFFAOYSA-N toluene 2,4-diisocyanate Chemical compound CC1=CC=C(N=C=O)C=C1N=C=O DVKJHBMWWAPEIU-UHFFFAOYSA-N 0.000 claims description 2
- DQWPFSLDHJDLRL-UHFFFAOYSA-N triethyl phosphate Chemical compound CCOP(=O)(OCC)OCC DQWPFSLDHJDLRL-UHFFFAOYSA-N 0.000 claims description 2
- QXJQHYBHAIHNGG-UHFFFAOYSA-N trimethylolethane Chemical compound OCC(C)(CO)CO QXJQHYBHAIHNGG-UHFFFAOYSA-N 0.000 claims description 2
- XKCQNWLQCXDVOP-UHFFFAOYSA-N tris(2-chloropropan-2-yl) phosphate Chemical compound CC(C)(Cl)OP(=O)(OC(C)(C)Cl)OC(C)(C)Cl XKCQNWLQCXDVOP-UHFFFAOYSA-N 0.000 claims description 2
- VNTDZUDTQCZFKN-UHFFFAOYSA-L zinc 2,2-dimethyloctanoate Chemical compound [Zn++].CCCCCCC(C)(C)C([O-])=O.CCCCCCC(C)(C)C([O-])=O VNTDZUDTQCZFKN-UHFFFAOYSA-L 0.000 claims description 2
- ADJMNWKZSCQHPS-UHFFFAOYSA-L zinc;6-methylheptanoate Chemical compound [Zn+2].CC(C)CCCCC([O-])=O.CC(C)CCCCC([O-])=O ADJMNWKZSCQHPS-UHFFFAOYSA-L 0.000 claims description 2
- 230000021164 cell adhesion Effects 0.000 claims 1
- 238000010276 construction Methods 0.000 claims 1
- 229920001748 polybutylene Polymers 0.000 claims 1
- 230000032683 aging Effects 0.000 abstract description 7
- 239000000463 material Substances 0.000 abstract description 6
- 229910000831 Steel Inorganic materials 0.000 abstract description 4
- 239000010959 steel Substances 0.000 abstract description 4
- 238000009825 accumulation Methods 0.000 abstract description 2
- 229910052782 aluminium Inorganic materials 0.000 abstract description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 abstract description 2
- 125000002524 organometallic group Chemical group 0.000 abstract description 2
- 230000007774 longterm Effects 0.000 abstract 1
- 239000000306 component Substances 0.000 description 88
- 230000008569 process Effects 0.000 description 4
- 239000002585 base Substances 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 3
- 238000010008 shearing Methods 0.000 description 3
- 229910000838 Al alloy Inorganic materials 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- AXFVIWBTKYFOCY-UHFFFAOYSA-N 1-n,1-n,3-n,3-n-tetramethylbutane-1,3-diamine Chemical compound CN(C)C(C)CCN(C)C AXFVIWBTKYFOCY-UHFFFAOYSA-N 0.000 description 1
- KYXHKHDZJSDWEF-LHLOQNFPSA-N CCCCCCC1=C(CCCCCC)C(\C=C\CCCCCCCC(O)=O)C(CCCCCCCC(O)=O)CC1 Chemical compound CCCCCCC1=C(CCCCCC)C(\C=C\CCCCCCCC(O)=O)C(CCCCCCCC(O)=O)CC1 KYXHKHDZJSDWEF-LHLOQNFPSA-N 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 239000000084 colloidal system Substances 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000010292 electrical insulation Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 150000002148 esters Chemical class 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- 230000009477 glass transition Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012536 packaging technology Methods 0.000 description 1
- 239000012994 photoredox catalyst Substances 0.000 description 1
- 239000004417 polycarbonate Substances 0.000 description 1
- 239000005020 polyethylene terephthalate Substances 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 238000007712 rapid solidification Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000000758 substrate 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
- C08G18/08—Processes
- C08G18/10—Prepolymer processes involving reaction of isocyanates or isothiocyanates with compounds having active hydrogen in a first reaction step
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/08—Processes
- C08G18/16—Catalysts
- C08G18/161—Catalysts containing two or more components to be covered by at least two of the groups C08G18/166, C08G18/18 or C08G18/22
- C08G18/163—Catalysts containing two or more components to be covered by at least two of the groups C08G18/166, C08G18/18 or C08G18/22 covered by C08G18/18 and C08G18/22
- C08G18/165—Catalysts containing two or more components to be covered by at least two of the groups C08G18/166, C08G18/18 or C08G18/22 covered by C08G18/18 and C08G18/22 covered by C08G18/18 and C08G18/24
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/08—Processes
- C08G18/16—Catalysts
- C08G18/18—Catalysts containing secondary or tertiary amines or salts thereof
- C08G18/20—Heterocyclic amines; Salts thereof
- C08G18/2009—Heterocyclic amines; Salts thereof containing one heterocyclic ring
- C08G18/2027—Heterocyclic amines; Salts thereof containing one heterocyclic ring having two nitrogen atoms in the ring
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/08—Processes
- C08G18/16—Catalysts
- C08G18/22—Catalysts containing metal compounds
- C08G18/24—Catalysts containing metal compounds of tin
- C08G18/244—Catalysts containing metal compounds of tin tin salts of carboxylic acids
- C08G18/246—Catalysts containing metal compounds of tin tin salts of carboxylic acids containing also tin-carbon 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
- C08G18/40—High-molecular-weight compounds
- C08G18/48—Polyethers
- C08G18/4804—Two or more polyethers of different physical or chemical nature
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/40—High-molecular-weight compounds
- C08G18/48—Polyethers
- C08G18/4825—Polyethers containing two hydroxy groups
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/65—Low-molecular-weight compounds having active hydrogen with high-molecular-weight compounds having active hydrogen
- C08G18/66—Compounds of groups C08G18/42, C08G18/48, or C08G18/52
- C08G18/6666—Compounds of group C08G18/48 or C08G18/52
- C08G18/6696—Compounds of group C08G18/48 or C08G18/52 with compounds of group C08G18/36 or hydroxylated esters of higher fatty acids of C08G18/38
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Polyurethanes Or Polyureas (AREA)
Abstract
The invention discloses a quick-curing bi-component polyurethane structural adhesive for bonding a power battery and a preparation method thereof, wherein the structural adhesive comprises the following components: the volume ratio of the component A to the component B is 1:1; the component A comprises the following components: bio-based polyols, aromatic ring modified polyols, aromatic ring-containing polyether polyols, organometallic catalysts, amine catalysts, flame retardants, water scavengers, antioxidants and thixotropic agents; the component B comprises the following components: isocyanate-terminated polyurethane prepolymer, flame retardant, coupling agent, thixotropic agent and anti-hydrolysis agent. The structural adhesive has a high curing speed, can form a high adhesive force in a short time, has excellent adhesive properties to base materials such as aluminum, steel, PC, PET and the like, has high flame retardant property and excellent wet heat aging resistance, effectively ensures the stable performance of the power battery in long-term use under complex environments such as high-frequency vibration, damp heat, severe cold, heat accumulation and the like, and improves the reliability and safety.
Description
Technical Field
The invention relates to the field of adhesive preparation, in particular to a quick-curing bi-component polyurethane structural adhesive for power battery adhesion and a preparation method thereof.
Background
At present, new energy electric vehicles are a mainstream trend for solving the problems of energy, environment, urban traffic and the like, and are a main direction of development of the future automobile industry. The power battery used for providing power for the new energy automobile is an indispensable core component of the new energy automobile, and is directly related to important performances such as endurance, power, service life, safety, electricity consumption and the like of the whole automobile.
The current power battery used for new energy automobiles is formed by connecting a plurality of battery cells in series/parallel, and along with the innovation of the power battery assembly process, the energy density is improved, the technology of de-modeling is more and more emphasized, more and more metal structural members are replaced by adhesives in the process, and the amount of the adhesives is continuously increased. The current trend of PACK packaging technology also proves that the adhesive has become one of the key factors for realizing stable, safe, efficient and durable operation of the power battery electric drive system.
The double-component polyurethane adhesive has the advantages of high storage stability, excellent electrical insulation, convenient modulus adjustment, safety, environmental protection, high reliability and the like, and becomes the first choice. In the running process of the automobile, the structural bonding of the double-component polyurethane adhesive needs to have the capabilities of buffering high-frequency vibration and aging resistance, and the structural bonding of the double-component polyurethane adhesive also needs to meet the excellent bonding capability of materials such as Al, steel, PET, PC, alloy and the like. However, the two-component polyurethane type structural adhesive requires a long curing time and cannot well meet the requirements of power battery assembly. But at present, the polyurethane adhesive which can be rapidly solidified and has high colloid strength and can obviously improve the productivity of a PACK assembly production line is rare.
In view of this, the present invention has been made.
Disclosure of Invention
In order to solve the problem of long curing time of the structural adhesive in the prior art, the invention provides the quick-curing bi-component polyurethane structural adhesive for bonding the power battery and the preparation method thereof, the structural adhesive does not contain solvent, has high curing speed, can form stronger bonding force in a shorter time, has excellent bonding performance on base materials such as aluminum, steel, PC, PET and the like, has strong flame retardant property and excellent wet heat aging resistance, and can meet the performance requirement of the PACK adhesive for the power battery.
The invention is realized by the following technical scheme:
the quick-curing bi-component polyurethane structural adhesive for power battery adhesion is formed by mixing an A component and a B component according to the volume ratio of 1:1, wherein the molar ratio of the functional groups of the A component to the B component is as follows: NCO oh=1.05: 1 to 2.0:1, a step of; wherein,
the component A consists of the following raw materials in parts by mass: 25-60 parts of bio-based polyol, 5-20 parts of aromatic ring modified polyol, 5-20 parts of aromatic ring-containing polyether polyol, 0.001-1.5 parts of organic metal catalyst, 0.001-1.5 parts of amine catalyst, 15-45 parts of flame retardant, 2-10 parts of water scavenger, 0.1-0.5 part of antioxidant and 1-5 parts of thixotropic agent;
the component B consists of the following raw materials in percentage by mass: 60-85 parts of isocyanate-terminated polyurethane prepolymer, 10-30 parts of flame retardant, 0.1-5 parts of coupling agent, 1-5 parts of thixotropic agent and 0.05-1 part of hydrolysis resistance agent.
Preferably, in the component A of the structural adhesive, the bio-based polyol is one or more of soybean oil, castor oil, palm oil, hydrogenated castor oil and aromatic ring modified castor oil;
the aromatic ring modified polyol is one or more of bisphenol A modified polyether glycol, bisphenol F modified polyether glycol and phthalic anhydride polyester glycol with the molecular weight of 400-3000.
Preferably, in the component A of the structural adhesive, the hydroxyl value of the polyether polyol containing the aromatic ring is 150-450 mg KOH/g;
the organic metal catalyst is one or more of bismuth isooctanoate, bismuth laurate, bismuth neodecanoate, bismuth naphthenate, zinc isooctanoate, zinc neodecanoate, dibutyl tin dilaurate, dibutyl tin diacetate, stannous octoate and chelated tin;
the amine catalyst is one or more of N, N-dimethylcyclohexylamine, triethylenediamine, 1, 2-dimethylimidazole, N-ethylmorpholine, N-methylmorpholine, N, N-diethylpiperazine, N, N, N-tetrahydroxypropyl ethylenediamine and N, N, N, N-tetramethyl-1, 3-butanediamine.
Preferably, in the component A of the structural adhesive, the water scavenger is one or more of molecular sieve, calcium chloride and aluminum sulfate.
The antioxidant is one or more of beta- (3, 5-di-tert-butyl-4-hydroxyphenyl) propionate (1076), tetra [ beta- (3, 5-di-tert-butyl-4-hydroxyphenyl) propionate ] pentaerythritol ester (1010), 3, 5-di-tert-butyl-4-hydroxyphenyl propionate octyl ester (1135) and triethylene glycol bis [3- (3-tert-butyl-5-methyl-4-hydroxyphenyl) propionate ] (245).
Preferably, in the component A and the component B of the structural adhesive, the flame retardant adopts a solid flame retardant or a liquid flame retardant, and the solid flame retardant adopts one or more of aluminum hydroxide, magnesium hydroxide, aluminum hypophosphite and diethyl aluminum phosphinate; the liquid flame retardant adopts one or more of tricresyl phosphate, triethyl phosphate and tri (chloroisopropyl) phosphate;
the thixotropic agent in the component A and the component B is one or more of fumed silica and bentonite.
Preferably, in the component B of the structural adhesive, the isocyanate-terminated polyurethane prepolymer is an isocyanate-terminated polyurethane prepolymer with the mass fraction of 5-20% of NCO generated by reacting a polyol with the molecular weight of 1000-4000 with isocyanate.
Preferably, in the isocyanate-terminated polyurethane prepolymer of the structural adhesive, the polyol is polyether polyol and polyester polyol, and the polyether polyol is one or more of polyethylene glycol, polypropylene glycol and polytetramethylene glycol; the polyester polyol is synthesized from diacid monomers and polyol monomers, preferably, the diacid is one or more of hydrogenated dimer acid, succinic acid, adipic acid, sebacic acid, terephthalic acid, isophthalic acid and phthalic anhydride; the polyester polyol is one or more of ethylene glycol, 1, 2-propylene glycol, 1, 3-propylene glycol, 2-methyl-1, 3-propylene glycol, 1, 4-butanediol, 2, 3-butanediol, 1, 5-pentanediol, neopentyl glycol, 1, 6-hexanediol, 1, 10-decanediol, glycerol, trimethylolethane, trimethylolpropane and pentaerythritol;
the isocyanate is one or more of diphenylmethane diisocyanate, dicyclohexylmethane diisocyanate, toluene diisocyanate, isophorone diisocyanate, hexamethylene diisocyanate and liquefied MDI.
Preferably, in the component B of the structural adhesive, the coupling agent is one or more of silane coupling agents KH550, KH560, KH570, KH580 and KH 792;
the anti-hydrolysis agent is polycarbodiimide.
The preparation method of the quick-curing bi-component polyurethane structural adhesive for bonding the power battery comprises the following steps:
preparing a prepolymer of the isocyanate groups of the component B in advance;
according to the formula of the A component and the B component, the raw materials of the A component and the B component are respectively taken, the raw materials of the A component and the B component are respectively and uniformly mixed to prepare the A component and the B component, and the prepared A component and the B component are combined according to the volume ratio of 1:1 to obtain the fast-curing double-component polyurethane structural adhesive for bonding the power battery.
Preferably, in the above method, the isocyanate-terminated prepolymer of the B component is prepared in advance in the following manner, comprising:
heating the polyol to 110-120 ℃, stirring while vacuumizing, dehydrating for 1-3 hours, cooling to below 50 ℃, charging nitrogen, adding isocyanate according to the proportion that the theoretical NCO content is 5-20%, heating to 65-85 ℃, continuously stirring for reacting for 1-3 hours until the titration NCO content is no longer changed, ending the reaction, and cooling to room temperature to obtain the isocyanate-terminated prepolymer.
Compared with the prior art, the quick-curing bi-component polyurethane structural adhesive for bonding the power battery and the preparation method thereof have the beneficial effects that:
by adding the aromatic ring modified polyol and the aromatic ring-containing polyether polyol in the component A, the rigidity of a molecular chain is improved, the glass transition temperature is improved, the heat resistance is improved, and meanwhile, the bonding strength of PET and a metal substrate is effectively improved; in addition, the reaction activity is greatly improved through the combination of the organometallic catalyst and the amine catalyst, so that the polyurethane adhesive can be quickly cured at room temperature and under heating; the bio-based polyol added in the component A and the dimeric acid based polyester polyol added in the component B can improve the hydrophobicity of a molecular chain, improve the resistance to damp and heat aging, increase the flexibility of the molecular chain, keep higher elongation, promote the molecular chain to form a microphase separation structure after the polyurethane is solidified, and are beneficial to keeping high mechanical properties. Compared with the prior art, the invention has at least the following beneficial effects: (1) The rapid solidification effect at room temperature and under heating has high shearing strength of more than or equal to 3MPa (2) at 35 ℃ for 1h, the tensile strength of the body is more than or equal to 10MPa, the shearing strength of the base materials such as PET, PC, aluminum alloy, steel and the like is more than or equal to 8MPa, and the safety and reliability in the running process are ensured. (3) The wet heat aging resistance is excellent, and the tensile strength and the shear strength decay is less than 20 percent after double-85 aging for 1000 hours.
Detailed Description
The technical scheme in the embodiment of the invention is clearly and completely described below in combination with the specific content of the invention; it will be apparent that the described embodiments are only some embodiments of the invention, but not all embodiments, which do not constitute limitations of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to fall within the scope of the invention.
The terms that may be used herein will first be described as follows:
the term "and/or" is intended to mean that either or both may be implemented, e.g., X and/or Y are intended to include both the cases of "X" or "Y" and the cases of "X and Y".
The terms "comprises," "comprising," "includes," "including," "has," "having" or other similar referents are to be construed to cover a non-exclusive inclusion. For example: including a particular feature (e.g., a starting material, component, ingredient, carrier, formulation, material, dimension, part, means, mechanism, apparatus, step, procedure, method, reaction condition, processing condition, parameter, algorithm, signal, data, product or article of manufacture, etc.), should be construed as including not only a particular feature but also other features known in the art that are not explicitly recited.
The term "consisting of … …" is meant to exclude any technical feature element not explicitly listed. If such term is used in a claim, the term will cause the claim to be closed, such that it does not include technical features other than those specifically listed, except for conventional impurities associated therewith. If the term is intended to appear in only a clause of a claim, it is intended to limit only the elements explicitly recited in that clause, and the elements recited in other clauses are not excluded from the overall claim.
The term "parts by mass" means a mass ratio relationship between a plurality of components, for example: if the X component is described as X parts by mass and the Y component is described as Y parts by mass, the mass ratio of the X component to the Y component is expressed as x:y;1 part by mass may represent any mass, for example: 1 part by mass may be expressed as 1kg or 3.1415926 kg. The sum of the mass parts of all the components is not necessarily 100 parts, and may be more than 100 parts, less than 100 parts, or 100 parts or equal. The parts, proportions and percentages described herein are by mass unless otherwise indicated.
When concentrations, temperatures, pressures, dimensions, or other parameters are expressed as a range of values, the range is to be understood as specifically disclosing all ranges formed from any pair of upper and lower values within the range of values, regardless of whether ranges are explicitly recited; for example, if a numerical range of "2 to 8" is recited, that numerical range should be interpreted to include the ranges of "2 to 7", "2 to 6", "5 to 7", "3 to 4 and 6 to 7", "3 to 5 and 7", "2 and 5 to 7", and the like. Unless otherwise indicated, numerical ranges recited herein include both their endpoints and all integers and fractions within the numerical range.
Example 1
The embodiment provides a quick-curing bi-component polyurethane structural adhesive for bonding a power battery, and the preparation method comprises the following steps:
preparing an isocyanate-terminated prepolymer in advance, wherein the isocyanate-terminated prepolymer and the raw materials are calculated according to parts by mass;
(1) Preparing isocyanate-terminated prepolymer, which comprises the steps of taking 50 parts by mass of polypropylene glycol with the molecular weight of 2000, stirring and heating to 120 ℃, maintaining vacuumizing and dewatering for 2 hours, cooling to 40 ℃, charging nitrogen, adding 50 parts by mass of liquefied MDI, slowly heating to 80 ℃, stirring and reacting for 2 hours, and cooling to room temperature to obtain the isocyanate-terminated prepolymer.
Respectively preparing a component A and a component B, wherein the raw materials in the component A and the component B are calculated according to parts by mass;
(2) Preparing a component A: taking 35 parts of hydrogenated castor oil polyol, 10 parts of bisphenol A polyether polyol, 12 parts of polyether polyol containing aromatic rings, 0.5 part of 1, 2-dimethyl imidazole, 0.001 part of dibutyltin dilaurate, 35 parts of aluminum hydroxide, 5 parts of molecular sieve, 2 parts of fumed silica and 0.5 part of antioxidant, dispersing and stirring uniformly, and stirring for 2 hours to obtain a component A;
(3) And (3) preparing a component B: 74 parts of isocyanate-terminated prepolymer prepared in the step (1), 23 parts of aluminum hydroxide, 0.5 part of KH560, 2 parts of fumed silica and 0.5 part of polycarbodiimide are taken, dispersed and stirred uniformly, and the component B is obtained after stirring for 2 hours.
Example 2
The embodiment provides a quick-curing bi-component polyurethane structural adhesive for bonding a power battery, and the preparation method comprises the following steps:
preparing an isocyanate-terminated prepolymer in advance, wherein the isocyanate-terminated prepolymer and the raw materials are calculated according to parts by mass;
(1) Preparing isocyanate-terminated prepolymer, which comprises the steps of taking 50 parts of poly (hexamethylene glycol) with the molecular weight of 2000-3000, stirring and heating to 120 ℃, maintaining vacuumizing and dewatering for 2 hours, cooling to 40 ℃, charging nitrogen, adding 50 parts of liquefied MDI, slowly heating to 75 ℃, stirring and reacting for 2.5 hours, and cooling to room temperature to obtain the isocyanate-terminated prepolymer.
Respectively preparing a component A and a component B, wherein the raw materials in the component A and the component B are calculated according to parts by mass;
(2) Preparing a component A: taking 40 parts of castor oil, 17 parts of polyether polyol containing aromatic rings, 0.5 part of dibutyltin dilaurate, 0.001 part of 1, 2-dimethyl imidazole, 25 parts of aluminum hydroxide, 10 parts of aluminum hypophosphite, 5 parts of molecular sieve, 2 parts of fumed silica and 0.5 part of antioxidant, dispersing and stirring uniformly, and stirring for 3 hours to obtain a component A;
(3) And (3) preparing a component B: and (3) taking 74 parts of the isocyanate-based prepolymer prepared in the end step (1), 23 parts of aluminum hypophosphite, 0.5 part of KH560, 2 parts of fumed silica and 0.5 part of polycarbodiimide, dispersing and stirring uniformly, and stirring for 3 hours to obtain the component B.
Example 3
The embodiment provides a quick-curing bi-component polyurethane structural adhesive for bonding a power battery, and the preparation method comprises the following steps:
preparing an isocyanate-terminated prepolymer in advance, wherein the isocyanate-terminated prepolymer and the raw materials are calculated according to parts by mass;
(1) Preparing isocyanate-terminated prepolymer, which comprises the steps of taking 25 parts of poly (hexamethylene glycol) with the molecular weight of 2000-3000 and 25 parts of polypropylene glycol with the molecular weight of 2000, stirring and heating to 120 ℃, keeping vacuumizing and dewatering for 2 hours, cooling to 40 ℃, charging nitrogen, adding 50 parts of liquefied MDI, slowly heating to 80 ℃, stirring and reacting for 2.5 hours, and cooling to room temperature to obtain the isocyanate-terminated prepolymer.
Respectively preparing a component A and a component B, wherein the raw materials in the component A and the component B are calculated according to parts by mass;
(2) Preparing a component A: taking 28 parts of castor oil, 12 parts of polyether polyol containing aromatic rings, 12 parts of bisphenol A polyether polyol, 0.5 part of N, N, N, N-tetrahydroxypropyl ethylenediamine, 0.2 part of dibutyltin dilaurate, 40 parts of aluminum hypophosphite, 5 parts of molecular sieve, 2 parts of fumed silica and 0.3 part of antioxidant, dispersing and stirring uniformly, and stirring for 3 hours to obtain a component A;
(3) And (3) preparing a component B: 74 parts of isocyanate-terminated prepolymer prepared in the step (1), 10 parts of aluminum hydroxide, 13 parts of aluminum hypophosphite, 0.5 part of KH560, 2 parts of fumed silica and 0.5 part of polycarbodiimide are taken, dispersed and stirred uniformly, and the component B is obtained after stirring for 2.5 hours.
Example 4
The embodiment provides a quick-curing bi-component polyurethane structural adhesive for bonding a power battery, and the preparation method comprises the following steps:
preparing an isocyanate-terminated prepolymer in advance, wherein the isocyanate-terminated prepolymer and the raw materials are calculated according to parts by mass;
(1) Preparing isocyanate-terminated prepolymer, which comprises the steps of taking 50 parts of poly (dimer acid hexanediol-polysebacic acid neopentyl glycol) ester with the molecular weight of 2000-3000, stirring and heating to 120 ℃, maintaining vacuum pumping and dewatering for 2 hours, cooling to 40 ℃, charging nitrogen, adding 50 parts of liquefied MDI, slowly heating to 80 ℃, stirring and reacting for 2.5 hours, and cooling to room temperature to obtain the isocyanate-terminated prepolymer.
Respectively preparing a component A and a component B, wherein the raw materials in the component A and the component B are calculated according to parts by mass;
(2) Preparing a component A: taking 40 parts of castor oil, 17 parts of polyether polyol containing aromatic rings, 0.2 part of N, N, N, N-tetrahydroxypropyl ethylenediamine, 0.5 part of bismuth isooctanoate, 35 parts of aluminum hydroxide, 5 parts of molecular sieve, 2 parts of fumed silica and 0.3 part of antioxidant, dispersing and stirring uniformly, and stirring for 3 hours to obtain a component A;
(3) And (3) preparing a component B: and (3) taking 70 parts of the isocyanate-terminated prepolymer prepared in the step (1), 27 parts of aluminum hypophosphite, 0.5 part of KH560, 2 parts of fumed silica and 0.5 part of polycarbodiimide, dispersing and stirring uniformly, and stirring for 2.5 hours to obtain the component B.
The quick-curing bi-component polyurethane structural adhesive for bonding the power battery prepared in each embodiment is prepared by combining the component A and the component B according to the volume ratio of 1:1, testing the tensile strength and the shear strength at 25 ℃ and the shear strength flame retardant property after curing for 1h at 35 ℃, wherein the tensile strength and the shear strength after double-85 aging for 1000h are obtained, and untreated aluminum alloy and PET are selected as the base materials.
The test data of the table show that the rapid-curing bi-component polyurethane structural adhesive for bonding the power battery has higher curing speed, can form stronger bonding force in a shorter time, has excellent tensile strength, has excellent shearing strength for untreated Al and PET, has flame retardant performance reaching a flame retardant level, has attenuation of less than 20% after being aged for 1000 hours by double-85, can effectively ensure the stable performance of the power battery in complex environments such as high-frequency vibration, damp heat, severe cold, summer heat, heat accumulation and the like, and improves the reliability and the safety.
The foregoing is only a preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions easily contemplated by those skilled in the art within the scope of the present invention should be included in the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the protection scope of the claims. The information disclosed in the background section herein is only for enhancement of understanding of the general background of the invention and is not to be taken as an admission or any form of suggestion that this information forms the prior art already known to those of ordinary skill in the art.
Claims (10)
1. The quick-curing bi-component polyurethane structural adhesive for power battery adhesion is characterized by being formed by mixing an A component and a B component according to the volume ratio of 1:1, wherein the molar ratio of the functional groups of the A component to the B component is as follows: NCO oh=1.05: 1 to 2.0:1, a step of; wherein,
the component A consists of the following raw materials in parts by mass: 25-60 parts of bio-based polyol, 5-20 parts of aromatic ring modified polyol, 5-20 parts of aromatic ring-containing polyether polyol, 0.001-1.5 parts of organic metal catalyst, 0.001-1.5 parts of amine catalyst, 15-45 parts of flame retardant, 2-10 parts of water scavenger, 0.1-0.5 part of antioxidant and 1-5 parts of thixotropic agent;
the component B consists of the following raw materials in parts by mass: 60-85 parts of isocyanate-terminated polyurethane prepolymer, 10-30 parts of flame retardant, 0.1-5 parts of coupling agent, 1-5 parts of thixotropic agent and 0.05-1 part of hydrolysis resistance agent.
2. The quick setting two-component polyurethane structural adhesive for bonding a power battery according to claim 1, wherein in the component a, the bio-based polyol is one or more of soybean oil, castor oil, palm oil, hydrogenated castor oil, aromatic ring modified castor oil;
the aromatic ring modified polyol is one or more of bisphenol A modified polyether glycol, bisphenol F modified polyether glycol and phthalic anhydride polyester glycol with the molecular weight of 400-3000.
3. The quick-setting two-component polyurethane construction adhesive for power cell adhesion according to claim 1 or 2, wherein in the a component, the hydroxyl value of the aromatic ring-containing polyether polyol is 150mg KOH/g to 450mg KOH/g;
the organic metal catalyst is one or more of bismuth isooctanoate, bismuth laurate, bismuth neodecanoate, bismuth naphthenate, zinc isooctanoate, zinc neodecanoate, dibutyl tin dilaurate, dibutyl tin diacetate, stannous octoate and chelated tin;
the amine catalyst is one or more of N, N-dimethylcyclohexylamine, triethylenediamine, 1, 2-dimethylimidazole, N-ethylmorpholine, N-methylmorpholine, N, N-diethylpiperazine, N, N, N-tetrahydroxypropyl ethylenediamine, N, N-tetramethyl-1, 3-butanediamine.
4. The quick-setting two-component polyurethane structural adhesive for bonding a power battery according to claim 1 or 2, wherein in the component A, the water scavenger is one or more of molecular sieve, calcium chloride and aluminum sulfate;
the antioxidant is one or more of beta- (3, 5-di-tert-butyl-4-hydroxyphenyl) propionate, tetra [ beta- (3, 5-di-tert-butyl-4-hydroxyphenyl) propionate ] pentaerythritol ester, 3, 5-di-tert-butyl-4-hydroxyphenyl octyl propionate and triethylene glycol bis [3- (3-tert-butyl-5-methyl-4-hydroxyphenyl) propionate ].
5. The quick-setting two-component polyurethane structural adhesive for bonding a power battery according to claim 1 or 2, wherein in the component A and the component B, a solid flame retardant or a liquid flame retardant is adopted as the flame retardant, and one or more of aluminum hydroxide, magnesium hydroxide, aluminum hypophosphite and diethyl aluminum phosphinate are adopted as the solid flame retardant; the liquid flame retardant adopts one or more of tricresyl phosphate, triethyl phosphate and tri (chloroisopropyl) phosphate;
the thixotropic agent in the component A and the component B is one or more of fumed silica and bentonite.
6. The quick-setting two-component polyurethane structural adhesive for bonding a power battery according to claim 1 or 2, wherein in the component B, the isocyanate-terminated polyurethane prepolymer is an isocyanate-terminated polyurethane prepolymer having an NCO mass fraction of 5 to 20% which is produced by reacting a polyol having a molecular weight of 1000 to 4000 with isocyanate.
7. The quick setting two-component polyurethane structural adhesive for bonding a power battery according to claim 6, wherein in the isocyanate-terminated polyurethane prepolymer, the polyol is one or more of polyether polyol and polyester polyol, and the polyether polyol is polyethylene glycol, polypropylene glycol, polybutylene glycol; the polyester polyol is synthesized from diacid monomers and polyol monomers, preferably, the diacid is one or more of hydrogenated dimer acid, succinic acid, adipic acid, sebacic acid, terephthalic acid, isophthalic acid and phthalic anhydride; the polyester polyol is one or more of ethylene glycol, 1, 2-propylene glycol, 1, 3-propylene glycol, 2-methyl-1, 3-propylene glycol, 1, 4-butanediol, 2, 3-butanediol, 1, 5-pentanediol, neopentyl glycol, 1, 6-hexanediol, 1, 10-decanediol, glycerol, trimethylolethane, trimethylolpropane and pentaerythritol;
the isocyanate is one or more of diphenylmethane diisocyanate, dicyclohexylmethane diisocyanate, toluene diisocyanate, isophorone diisocyanate, hexamethylene diisocyanate and liquefied MDI.
8. The quick-setting two-component polyurethane structural adhesive for bonding a power battery according to claim 6, wherein in the component B, the coupling agent is one or more of silane coupling agents KH550, KH560, KH570, KH580 and KH 792;
the anti-hydrolysis agent is polycarbodiimide.
9. A method for preparing the fast-curing two-component polyurethane structural adhesive for bonding a power battery according to any one of claims 1 to 8, comprising the following steps:
preparing a prepolymer of the isocyanate groups of the component B in advance;
the quick-setting two-component polyurethane structural adhesive for power battery adhesion is prepared by taking the raw materials of the component A and the component B according to the formula of any one of claims 1-8, respectively, uniformly mixing the raw materials of the component A and the component B to prepare the component A and the component B, and combining the prepared component A and component B according to the volume ratio of 1:1.
10. The method for preparing a fast curing two-component polyurethane structural adhesive for bonding a power battery according to claim 9, wherein the isocyanate-terminated prepolymer of the B component is prepared in advance in the following manner, comprising:
heating the polyol to 110-120 ℃, stirring while vacuumizing, dehydrating for 1-3 hours, cooling to below 50 ℃, charging nitrogen, adding isocyanate according to the proportion that the theoretical NCO content is 5-20%, heating to 65-85 ℃, continuously stirring for reacting for 1-3 hours until the titration NCO content is no longer changed, ending the reaction, and cooling to room temperature to obtain the isocyanate-terminated prepolymer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311627344.0A CN117659928A (en) | 2023-11-30 | 2023-11-30 | Quick-curing bi-component polyurethane structural adhesive for power battery adhesion and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311627344.0A CN117659928A (en) | 2023-11-30 | 2023-11-30 | Quick-curing bi-component polyurethane structural adhesive for power battery adhesion and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117659928A true CN117659928A (en) | 2024-03-08 |
Family
ID=90080116
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311627344.0A Pending CN117659928A (en) | 2023-11-30 | 2023-11-30 | Quick-curing bi-component polyurethane structural adhesive for power battery adhesion and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117659928A (en) |
-
2023
- 2023-11-30 CN CN202311627344.0A patent/CN117659928A/en active Pending
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN112608707B (en) | Double-component polyurethane structural adhesive and preparation method thereof | |
| CN113999643B (en) | Heat-conducting bi-component polyurethane adhesive and preparation method and application thereof | |
| CN108559437B (en) | Reactive polyurethane hot melt adhesive and preparation method thereof | |
| CN113717347B (en) | Polyurethane foam pouring sealant for battery unit and preparation method thereof | |
| CN110591627B (en) | Novel adhesive and heat-conducting interface material | |
| CN115651596B (en) | Low-density high-thermal-conductivity polyurethane pouring sealant and preparation method thereof | |
| CN115141596B (en) | High-strength high-toughness polyurethane heat-conducting structural adhesive and preparation method thereof | |
| CN109735286A (en) | A kind of bi-component polyurethane adhesive and preparation method thereof | |
| CN104974703A (en) | Double-component hyper-branched polyurethane adhesive and preparation method therefor | |
| CN115785887A (en) | High-temperature-resistant heat-conducting polyurethane structural adhesive and preparation method thereof | |
| CN117659928A (en) | Quick-curing bi-component polyurethane structural adhesive for power battery adhesion and preparation method thereof | |
| CN111171774B (en) | Reactive hot melt adhesive composition | |
| CN110540826B (en) | High-heat-resistance polyurethane sealant and preparation method thereof | |
| CN110791249B (en) | Two-component polyurethane sealant | |
| EP3728379B1 (en) | Thermally conductive polyurethane adhesive with exceptional combination of mechanical properties | |
| CN116875258A (en) | Recyclable polyurethane binder and preparation method and application thereof | |
| CN116676068B (en) | Low-modulus high-strength polyurethane structural adhesive for power battery assembly and preparation method thereof | |
| CN115232593A (en) | Cold-thermal shock resistant flame-retardant bi-component polyurethane structural adhesive and preparation method thereof | |
| CN110283290B (en) | Hydrolysis-resistant polyurethane elastomer and preparation method thereof | |
| CN116676068A (en) | Low-modulus high-strength polyurethane structural adhesive for power battery assembly and preparation method thereof | |
| CN115895567B (en) | Low-density flame-retardant heat-conducting polyurethane structural adhesive and preparation method thereof | |
| CN113185841B (en) | Modified rubber tire material | |
| JPS62184706A (en) | Potting agent for electrical insulation | |
| CN116987475B (en) | Pressure-maintaining-free and fast-curing polyurethane adhesive and preparation method thereof | |
| CN116445121B (en) | Bi-component polyurethane structural adhesive with high-temperature adhesive force larger than cohesive force and preparation method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |