CN110062794B - 具有高化学和机械耐受性的硬涂层 - Google Patents
具有高化学和机械耐受性的硬涂层 Download PDFInfo
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- CN110062794B CN110062794B CN201780078320.0A CN201780078320A CN110062794B CN 110062794 B CN110062794 B CN 110062794B CN 201780078320 A CN201780078320 A CN 201780078320A CN 110062794 B CN110062794 B CN 110062794B
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- China
- Prior art keywords
- polyisocyanate composition
- polyisocyanate
- weight
- catalyst
- isocyanate
- Prior art date
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- 238000000576 coating method Methods 0.000 title claims abstract description 66
- 239000011248 coating agent Substances 0.000 title claims abstract description 47
- 239000000126 substance Substances 0.000 title claims abstract description 29
- 239000005056 polyisocyanate Substances 0.000 claims abstract description 167
- 229920001228 polyisocyanate Polymers 0.000 claims abstract description 167
- 238000004132 cross linking Methods 0.000 claims abstract description 33
- 239000000203 mixture Substances 0.000 claims description 131
- 238000000034 method Methods 0.000 claims description 76
- 239000003054 catalyst Substances 0.000 claims description 75
- IQPQWNKOIGAROB-UHFFFAOYSA-N isocyanate group Chemical group [N-]=C=O IQPQWNKOIGAROB-UHFFFAOYSA-N 0.000 claims description 40
- 230000008569 process Effects 0.000 claims description 37
- 239000011541 reaction mixture Substances 0.000 claims description 21
- ZFSLODLOARCGLH-UHFFFAOYSA-N isocyanuric acid Chemical group OC1=NC(O)=NC(O)=N1 ZFSLODLOARCGLH-UHFFFAOYSA-N 0.000 claims description 18
- 239000012948 isocyanate Substances 0.000 claims description 16
- 150000002513 isocyanates Chemical class 0.000 claims description 16
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 14
- 230000003197 catalytic effect Effects 0.000 claims description 13
- 125000001931 aliphatic group Chemical group 0.000 claims description 12
- 238000004519 manufacturing process Methods 0.000 claims description 11
- 229910052751 metal Inorganic materials 0.000 claims description 10
- 239000002184 metal Substances 0.000 claims description 10
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 9
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 9
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 claims description 9
- 150000002611 lead compounds Chemical class 0.000 claims description 9
- 229910052718 tin Inorganic materials 0.000 claims description 9
- 150000003752 zinc compounds Chemical class 0.000 claims description 9
- 229910052797 bismuth Inorganic materials 0.000 claims description 7
- JCXGWMGPZLAOME-UHFFFAOYSA-N bismuth atom Chemical compound [Bi] JCXGWMGPZLAOME-UHFFFAOYSA-N 0.000 claims description 7
- 150000003983 crown ethers Chemical class 0.000 claims description 7
- 229910052742 iron Inorganic materials 0.000 claims description 7
- 239000000178 monomer Substances 0.000 claims description 6
- 229920003023 plastic Polymers 0.000 claims description 6
- 239000004033 plastic Substances 0.000 claims description 6
- 239000003795 chemical substances by application Substances 0.000 claims description 5
- 239000000123 paper Substances 0.000 claims description 5
- 150000003839 salts Chemical class 0.000 claims description 5
- 229920002457 flexible plastic Polymers 0.000 claims description 4
- 239000010985 leather Substances 0.000 claims description 4
- 150000002739 metals Chemical class 0.000 claims description 4
- 239000004753 textile Substances 0.000 claims description 4
- 239000002023 wood Substances 0.000 claims description 4
- 150000001732 carboxylic acid derivatives Chemical class 0.000 claims description 3
- 229910052500 inorganic mineral Inorganic materials 0.000 claims description 3
- 239000011707 mineral Substances 0.000 claims description 3
- 239000000976 ink Substances 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 5
- 125000005442 diisocyanate group Chemical group 0.000 description 27
- 238000012360 testing method Methods 0.000 description 18
- -1 bicyclic amines Chemical group 0.000 description 16
- 239000003973 paint Substances 0.000 description 14
- 239000002904 solvent Substances 0.000 description 13
- PCHXZXKMYCGVFA-UHFFFAOYSA-N 1,3-diazetidine-2,4-dione Chemical group O=C1NC(=O)N1 PCHXZXKMYCGVFA-UHFFFAOYSA-N 0.000 description 11
- 230000008859 change Effects 0.000 description 11
- RRAMGCGOFNQTLD-UHFFFAOYSA-N hexamethylene diisocyanate Chemical compound O=C=NCCCCCCN=C=O RRAMGCGOFNQTLD-UHFFFAOYSA-N 0.000 description 11
- PJMDLNIAGSYXLA-UHFFFAOYSA-N 6-iminooxadiazine-4,5-dione Chemical group N=C1ON=NC(=O)C1=O PJMDLNIAGSYXLA-UHFFFAOYSA-N 0.000 description 10
- OHJMTUPIZMNBFR-UHFFFAOYSA-N biuret Chemical group NC(=O)NC(N)=O OHJMTUPIZMNBFR-UHFFFAOYSA-N 0.000 description 10
- HXSACZWWBYWLIS-UHFFFAOYSA-N oxadiazine-4,5,6-trione Chemical group O=C1ON=NC(=O)C1=O HXSACZWWBYWLIS-UHFFFAOYSA-N 0.000 description 10
- AVWRKZWQTYIKIY-UHFFFAOYSA-N urea-1-carboxylic acid Chemical group NC(=O)NC(O)=O AVWRKZWQTYIKIY-UHFFFAOYSA-N 0.000 description 10
- 239000005057 Hexamethylene diisocyanate Substances 0.000 description 8
- 238000006243 chemical reaction Methods 0.000 description 8
- 150000001875 compounds Chemical class 0.000 description 8
- ZMANZCXQSJIPKH-UHFFFAOYSA-N Triethylamine Chemical compound CCN(CC)CC ZMANZCXQSJIPKH-UHFFFAOYSA-N 0.000 description 6
- 239000007795 chemical reaction product Substances 0.000 description 6
- MTHSVFCYNBDYFN-UHFFFAOYSA-N diethylene glycol Chemical compound OCCOCCO MTHSVFCYNBDYFN-UHFFFAOYSA-N 0.000 description 6
- 239000011521 glass Substances 0.000 description 6
- VLKZOEOYAKHREP-UHFFFAOYSA-N n-Hexane Chemical compound CCCCCC VLKZOEOYAKHREP-UHFFFAOYSA-N 0.000 description 6
- SCVFZCLFOSHCOH-UHFFFAOYSA-M potassium acetate Chemical compound [K+].CC([O-])=O SCVFZCLFOSHCOH-UHFFFAOYSA-M 0.000 description 6
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 5
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 5
- 238000002474 experimental method Methods 0.000 description 5
- 239000004922 lacquer Substances 0.000 description 5
- 239000000463 material Substances 0.000 description 5
- 229920001223 polyethylene glycol Polymers 0.000 description 5
- 229920000582 polyisocyanurate Polymers 0.000 description 5
- 229920000642 polymer Polymers 0.000 description 5
- 229920001451 polypropylene glycol Polymers 0.000 description 5
- 239000004814 polyurethane Substances 0.000 description 5
- 238000002360 preparation method Methods 0.000 description 5
- 229910052708 sodium Inorganic materials 0.000 description 5
- 239000000243 solution Substances 0.000 description 5
- 150000003606 tin compounds Chemical class 0.000 description 5
- 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 description 4
- 238000005299 abrasion Methods 0.000 description 4
- 239000000654 additive Substances 0.000 description 4
- 150000001298 alcohols Chemical class 0.000 description 4
- 229910052783 alkali metal Inorganic materials 0.000 description 4
- 125000003118 aryl group Chemical group 0.000 description 4
- 150000001622 bismuth compounds Chemical class 0.000 description 4
- 239000003063 flame retardant Substances 0.000 description 4
- NIMLQBUJDJZYEJ-UHFFFAOYSA-N isophorone diisocyanate Chemical compound CC1(C)CC(N=C=O)CC(C)(CN=C=O)C1 NIMLQBUJDJZYEJ-UHFFFAOYSA-N 0.000 description 4
- 239000011495 polyisocyanurate Substances 0.000 description 4
- 229920002635 polyurethane Polymers 0.000 description 4
- 239000011527 polyurethane coating Substances 0.000 description 4
- 239000000376 reactant Substances 0.000 description 4
- 239000011734 sodium Substances 0.000 description 4
- 239000000758 substrate Substances 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- ZWEHNKRNPOVVGH-UHFFFAOYSA-N 2-Butanone Chemical compound CCC(C)=O ZWEHNKRNPOVVGH-UHFFFAOYSA-N 0.000 description 3
- WVDDGKGOMKODPV-UHFFFAOYSA-N Benzyl alcohol Chemical compound OCC1=CC=CC=C1 WVDDGKGOMKODPV-UHFFFAOYSA-N 0.000 description 3
- YMWUJEATGCHHMB-UHFFFAOYSA-N Dichloromethane Chemical compound ClCCl YMWUJEATGCHHMB-UHFFFAOYSA-N 0.000 description 3
- 235000009161 Espostoa lanata Nutrition 0.000 description 3
- 240000001624 Espostoa lanata Species 0.000 description 3
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 description 3
- JOYRKODLDBILNP-UHFFFAOYSA-N Ethyl urethane Chemical compound CCOC(N)=O JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 description 3
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 3
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 3
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 3
- SJRJJKPEHAURKC-UHFFFAOYSA-N N-Methylmorpholine Chemical compound CN1CCOCC1 SJRJJKPEHAURKC-UHFFFAOYSA-N 0.000 description 3
- DNIAPMSPPWPWGF-UHFFFAOYSA-N Propylene glycol Chemical compound CC(O)CO DNIAPMSPPWPWGF-UHFFFAOYSA-N 0.000 description 3
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 3
- 230000009471 action Effects 0.000 description 3
- 150000001340 alkali metals Chemical class 0.000 description 3
- 125000004432 carbon atom Chemical group C* 0.000 description 3
- 239000008139 complexing agent Substances 0.000 description 3
- 125000000113 cyclohexyl group Chemical group [H]C1([H])C([H])([H])C([H])([H])C([H])(*)C([H])([H])C1([H])[H] 0.000 description 3
- 230000006378 damage Effects 0.000 description 3
- 238000013016 damping Methods 0.000 description 3
- 239000003599 detergent Substances 0.000 description 3
- AYOHIQLKSOJJQH-UHFFFAOYSA-N dibutyltin Chemical compound CCCC[Sn]CCCC AYOHIQLKSOJJQH-UHFFFAOYSA-N 0.000 description 3
- 239000012530 fluid Substances 0.000 description 3
- 238000009472 formulation Methods 0.000 description 3
- FUZZWVXGSFPDMH-UHFFFAOYSA-N hexanoic acid Chemical class CCCCCC(O)=O FUZZWVXGSFPDMH-UHFFFAOYSA-N 0.000 description 3
- 150000002506 iron compounds Chemical class 0.000 description 3
- 238000002156 mixing Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 229910052757 nitrogen Inorganic materials 0.000 description 3
- 239000003960 organic solvent Substances 0.000 description 3
- 235000011056 potassium acetate Nutrition 0.000 description 3
- 125000001453 quaternary ammonium group Chemical group 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- 150000003512 tertiary amines Chemical class 0.000 description 3
- 238000005829 trimerization reaction Methods 0.000 description 3
- 239000002966 varnish Substances 0.000 description 3
- OVBFMUAFNIIQAL-UHFFFAOYSA-N 1,4-diisocyanatobutane Chemical compound O=C=NCCCCN=C=O OVBFMUAFNIIQAL-UHFFFAOYSA-N 0.000 description 2
- RXYPXQSKLGGKOL-UHFFFAOYSA-N 1,4-dimethylpiperazine Chemical compound CN1CCN(C)CC1 RXYPXQSKLGGKOL-UHFFFAOYSA-N 0.000 description 2
- DFPJRUKWEPYFJT-UHFFFAOYSA-N 1,5-diisocyanatopentane Chemical compound O=C=NCCCCCN=C=O DFPJRUKWEPYFJT-UHFFFAOYSA-N 0.000 description 2
- ARXJGSRGQADJSQ-UHFFFAOYSA-N 1-methoxypropan-2-ol Chemical compound COCC(C)O ARXJGSRGQADJSQ-UHFFFAOYSA-N 0.000 description 2
- XEZNGIUYQVAUSS-UHFFFAOYSA-N 18-crown-6 Chemical compound C1COCCOCCOCCOCCOCCO1 XEZNGIUYQVAUSS-UHFFFAOYSA-N 0.000 description 2
- KMZHZAAOEWVPSE-UHFFFAOYSA-N 2,3-dihydroxypropyl acetate Chemical compound CC(=O)OCC(O)CO KMZHZAAOEWVPSE-UHFFFAOYSA-N 0.000 description 2
- XNWFRZJHXBZDAG-UHFFFAOYSA-N 2-METHOXYETHANOL Chemical group COCCO XNWFRZJHXBZDAG-UHFFFAOYSA-N 0.000 description 2
- BOZRCGLDOHDZBP-UHFFFAOYSA-N 2-ethylhexanoic acid;tin Chemical compound [Sn].CCCCC(CC)C(O)=O BOZRCGLDOHDZBP-UHFFFAOYSA-N 0.000 description 2
- YEJRWHAVMIAJKC-UHFFFAOYSA-N 4-Butyrolactone Chemical compound O=C1CCCO1 YEJRWHAVMIAJKC-UHFFFAOYSA-N 0.000 description 2
- FERIUCNNQQJTOY-UHFFFAOYSA-N Butyric acid Chemical class CCCC(O)=O FERIUCNNQQJTOY-UHFFFAOYSA-N 0.000 description 2
- RGSFGYAAUTVSQA-UHFFFAOYSA-N Cyclopentane Chemical compound C1CCCC1 RGSFGYAAUTVSQA-UHFFFAOYSA-N 0.000 description 2
- IAZDPXIOMUYVGZ-UHFFFAOYSA-N Dimethylsulphoxide Chemical compound CS(C)=O IAZDPXIOMUYVGZ-UHFFFAOYSA-N 0.000 description 2
- 239000005058 Isophorone diisocyanate Substances 0.000 description 2
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 description 2
- LRHPLDYGYMQRHN-UHFFFAOYSA-N N-Butanol Chemical compound CCCCO LRHPLDYGYMQRHN-UHFFFAOYSA-N 0.000 description 2
- IMNFDUFMRHMDMM-UHFFFAOYSA-N N-Heptane Chemical compound CCCCCCC IMNFDUFMRHMDMM-UHFFFAOYSA-N 0.000 description 2
- ATHHXGZTWNVVOU-UHFFFAOYSA-N N-methylformamide Chemical compound CNC=O ATHHXGZTWNVVOU-UHFFFAOYSA-N 0.000 description 2
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- OFBQJSOFQDEBGM-UHFFFAOYSA-N Pentane Chemical compound CCCCC OFBQJSOFQDEBGM-UHFFFAOYSA-N 0.000 description 2
- 239000004698 Polyethylene Substances 0.000 description 2
- 239000004972 Polyurethane varnish Substances 0.000 description 2
- WQDUMFSSJAZKTM-UHFFFAOYSA-N Sodium methoxide Chemical compound [Na+].[O-]C WQDUMFSSJAZKTM-UHFFFAOYSA-N 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- APQHKWPGGHMYKJ-UHFFFAOYSA-N Tributyltin oxide Chemical compound CCCC[Sn](CCCC)(CCCC)O[Sn](CCCC)(CCCC)CCCC APQHKWPGGHMYKJ-UHFFFAOYSA-N 0.000 description 2
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 description 2
- UKLDJPRMSDWDSL-UHFFFAOYSA-L [dibutyl(dodecanoyloxy)stannyl] dodecanoate Chemical compound CCCCCCCCCCCC(=O)O[Sn](CCCC)(CCCC)OC(=O)CCCCCCCCCCC UKLDJPRMSDWDSL-UHFFFAOYSA-L 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- 150000007513 acids Chemical class 0.000 description 2
- 229910052784 alkaline earth metal Inorganic materials 0.000 description 2
- 150000004703 alkoxides Chemical class 0.000 description 2
- XXROGKLTLUQVRX-UHFFFAOYSA-N allyl alcohol Chemical compound OCC=C XXROGKLTLUQVRX-UHFFFAOYSA-N 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 150000003863 ammonium salts Chemical class 0.000 description 2
- YOUGRGFIHBUKRS-UHFFFAOYSA-N benzyl(trimethyl)azanium Chemical compound C[N+](C)(C)CC1=CC=CC=C1 YOUGRGFIHBUKRS-UHFFFAOYSA-N 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- NUMHJBONQMZPBW-UHFFFAOYSA-K bis(2-ethylhexanoyloxy)bismuthanyl 2-ethylhexanoate Chemical compound [Bi+3].CCCCC(CC)C([O-])=O.CCCCC(CC)C([O-])=O.CCCCC(CC)C([O-])=O NUMHJBONQMZPBW-UHFFFAOYSA-K 0.000 description 2
- 150000004649 carbonic acid derivatives Chemical class 0.000 description 2
- MVPPADPHJFYWMZ-UHFFFAOYSA-N chlorobenzene Chemical compound ClC1=CC=CC=C1 MVPPADPHJFYWMZ-UHFFFAOYSA-N 0.000 description 2
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- GHVNFZFCNZKVNT-UHFFFAOYSA-N decanoic acid Chemical compound CCCCCCCCCC(O)=O GHVNFZFCNZKVNT-UHFFFAOYSA-N 0.000 description 2
- XXJWXESWEXIICW-UHFFFAOYSA-N diethylene glycol monoethyl ether Chemical group CCOCCOCCO XXJWXESWEXIICW-UHFFFAOYSA-N 0.000 description 2
- XBDQKXXYIPTUBI-UHFFFAOYSA-N dimethylselenoniopropionate Natural products CCC(O)=O XBDQKXXYIPTUBI-UHFFFAOYSA-N 0.000 description 2
- 238000002845 discoloration Methods 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 239000000945 filler Substances 0.000 description 2
- ZSIAUFGUXNUGDI-UHFFFAOYSA-N hexan-1-ol Chemical compound CCCCCCO ZSIAUFGUXNUGDI-UHFFFAOYSA-N 0.000 description 2
- 150000002430 hydrocarbons Chemical class 0.000 description 2
- 150000004679 hydroxides Chemical class 0.000 description 2
- 238000011534 incubation Methods 0.000 description 2
- RBTARNINKXHZNM-UHFFFAOYSA-K iron trichloride Chemical compound Cl[Fe](Cl)Cl RBTARNINKXHZNM-UHFFFAOYSA-K 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000011068 loading method Methods 0.000 description 2
- 150000002736 metal compounds Chemical class 0.000 description 2
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- FBUKVWPVBMHYJY-UHFFFAOYSA-N nonanoic acid Chemical compound CCCCCCCCC(O)=O FBUKVWPVBMHYJY-UHFFFAOYSA-N 0.000 description 2
- WWZKQHOCKIZLMA-UHFFFAOYSA-N octanoic acid Chemical compound CCCCCCCC(O)=O WWZKQHOCKIZLMA-UHFFFAOYSA-N 0.000 description 2
- 238000006384 oligomerization reaction Methods 0.000 description 2
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- 229920005862 polyol Polymers 0.000 description 2
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- 229910052700 potassium Inorganic materials 0.000 description 2
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- 159000000001 potassium salts Chemical class 0.000 description 2
- 125000002924 primary amino group Chemical group [H]N([H])* 0.000 description 2
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- BDERNNFJNOPAEC-UHFFFAOYSA-N propan-1-ol Chemical compound CCCO BDERNNFJNOPAEC-UHFFFAOYSA-N 0.000 description 2
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- 238000000926 separation method Methods 0.000 description 2
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- IMNIMPAHZVJRPE-UHFFFAOYSA-N triethylenediamine Chemical compound C1CN2CCN1CC2 IMNIMPAHZVJRPE-UHFFFAOYSA-N 0.000 description 2
- ZDPHROOEEOARMN-UHFFFAOYSA-N undecanoic acid Chemical compound CCCCCCCCCCC(O)=O ZDPHROOEEOARMN-UHFFFAOYSA-N 0.000 description 2
- NQPDZGIKBAWPEJ-UHFFFAOYSA-N valeric acid Chemical class CCCCC(O)=O NQPDZGIKBAWPEJ-UHFFFAOYSA-N 0.000 description 2
- JIAARYAFYJHUJI-UHFFFAOYSA-L zinc dichloride Chemical compound [Cl-].[Cl-].[Zn+2] JIAARYAFYJHUJI-UHFFFAOYSA-L 0.000 description 2
- 229910052726 zirconium Inorganic materials 0.000 description 2
- UNMJLQGKEDTEKJ-UHFFFAOYSA-N (3-ethyloxetan-3-yl)methanol Chemical compound CCC1(CO)COC1 UNMJLQGKEDTEKJ-UHFFFAOYSA-N 0.000 description 1
- DAFHKNAQFPVRKR-UHFFFAOYSA-N (3-hydroxy-2,2,4-trimethylpentyl) 2-methylpropanoate Chemical compound CC(C)C(O)C(C)(C)COC(=O)C(C)C DAFHKNAQFPVRKR-UHFFFAOYSA-N 0.000 description 1
- NMRPBPVERJPACX-UHFFFAOYSA-N (3S)-octan-3-ol Natural products CCCCCC(O)CC NMRPBPVERJPACX-UHFFFAOYSA-N 0.000 description 1
- ALSTYHKOOCGGFT-KTKRTIGZSA-N (9Z)-octadecen-1-ol Chemical compound CCCCCCCC\C=C/CCCCCCCCO ALSTYHKOOCGGFT-KTKRTIGZSA-N 0.000 description 1
- FKTHNVSLHLHISI-UHFFFAOYSA-N 1,2-bis(isocyanatomethyl)benzene Chemical compound O=C=NCC1=CC=CC=C1CN=C=O FKTHNVSLHLHISI-UHFFFAOYSA-N 0.000 description 1
- AZYRZNIYJDKRHO-UHFFFAOYSA-N 1,3-bis(2-isocyanatopropan-2-yl)benzene Chemical compound O=C=NC(C)(C)C1=CC=CC(C(C)(C)N=C=O)=C1 AZYRZNIYJDKRHO-UHFFFAOYSA-N 0.000 description 1
- OHTRJOZKRSVAOX-UHFFFAOYSA-N 1,3-diisocyanato-2-methylcyclohexane Chemical compound CC1C(N=C=O)CCCC1N=C=O OHTRJOZKRSVAOX-UHFFFAOYSA-N 0.000 description 1
- AGJCSCSSMFRMFQ-UHFFFAOYSA-N 1,4-bis(2-isocyanatopropan-2-yl)benzene Chemical compound O=C=NC(C)(C)C1=CC=C(C(C)(C)N=C=O)C=C1 AGJCSCSSMFRMFQ-UHFFFAOYSA-N 0.000 description 1
- OHLKMGYGBHFODF-UHFFFAOYSA-N 1,4-bis(isocyanatomethyl)benzene Chemical compound O=C=NCC1=CC=C(CN=C=O)C=C1 OHLKMGYGBHFODF-UHFFFAOYSA-N 0.000 description 1
- ROHUXHMNZLHBSF-UHFFFAOYSA-N 1,4-bis(isocyanatomethyl)cyclohexane Chemical compound O=C=NCC1CCC(CN=C=O)CC1 ROHUXHMNZLHBSF-UHFFFAOYSA-N 0.000 description 1
- CDMDQYCEEKCBGR-UHFFFAOYSA-N 1,4-diisocyanatocyclohexane Chemical compound O=C=NC1CCC(N=C=O)CC1 CDMDQYCEEKCBGR-UHFFFAOYSA-N 0.000 description 1
- SBJCUZQNHOLYMD-UHFFFAOYSA-N 1,5-Naphthalene diisocyanate Chemical compound C1=CC=C2C(N=C=O)=CC=CC2=C1N=C=O SBJCUZQNHOLYMD-UHFFFAOYSA-N 0.000 description 1
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Abstract
本发明涉及对化学和机械作用具有高稳定性的涂层。所述涂层可通过使贫低聚物的多异氰酸酯交联获得。
Description
本发明涉及对化学和机械作用具有高稳定性的涂层。所述涂层可通过富含异氰酸酯的混合物的交联获得。
常规聚氨酯涂层已具有良好的化学和机械耐受性(Polyurethane: Lacke, Kleb-und Dichtstoffe (Farbe und Lack版), 2007年4月1日. Ulrich Meier-Westhues;Thesolventless solution, M. Almató等人, European Coatings Journal第07/08卷,2010)。
对用于除去涂鸦的介质具有良好化学耐受性的水基聚氨酯分散体描述在WO2009/029512和G. N. Manvi等人(2012), “Isocyanurate based fluorinatedpolyurethane dispersion for anti-graffiti coatings” Progress in OrganicCoatings 75: 139-146中。
WO 2015/166983描述了通过低聚多异氰酸酯的聚合制造用于发光二极管的灌封物料。其中描述的聚异氰脲酸酯塑料在至少60℃下固化。
US 6,133,397描述了低聚多异氰酸酯用于制造涂层的用途。在超过48℃的温度下实施固化。这在许多行业中,尤其是当应涂覆较大部件时是不利的,因为为此需要相应尺寸的烘箱。此外,US 6,133,397没有给出关于如何可以由低聚多异氰酸酯获得高强度涂层的指示。特别地,本申请基于的研究已经表明,如US 6,133,397中所示使用二月桂酸二丁基锡作为催化剂使涂层的性质变差。
本发明的目的是提供在它们对化学或机械作用的稳定性方面优于常规高强度聚氨酯涂层的涂层。此外,这种涂层 - 不同于已知的聚异氰脲酸酯塑料 - 应该在室温下就可固化。
在一个实施方案中,本发明涉及制造具有大硬度和高机械和/或化学耐受性的表面涂层的方法,其包括方法步骤
a) 提供多异氰酸酯组合物A),其中异氰酸酯含量为至少15重量%;
b) 将所述多异氰酸酯组合物A)施加到表面上;和
c) 在至少一种催化剂B)存在下催化交联所述多异氰酸酯组合物A),
条件是由所述多异氰酸酯组合物A)和所述至少一种催化剂B)形成的反应混合物含有最多0.5重量%的有机和无机铁化合物、铅化合物、锡化合物、铋化合物和锌化合物。
在本发明的一个优选实施方案中,将所述至少一种催化剂与多异氰酸酯组合物A)混合,然后将其在方法步骤b)中施加到表面上。
但是同时已经发现,甚至当将多异氰酸酯组合物A)和包含至少一种催化剂B)的组合物相继以分开的层的形式施加到表面上时,也可获得具有良好性质的涂层。因此,在本发明的另一优选实施方案中,将多异氰酸酯组合物A)和包含至少一种催化剂B)的组合物以任意顺序相继施加到表面上。因此不要求在方法步骤B)中施加到表面上之前在多异氰酸酯组合物A)中存在催化剂B)。在此应注意,在希望表面涂层之处,多异氰酸酯组合物A)和包含至少一种催化剂B)的组合物都必须施加。
无论在施加前在多异氰酸酯组合物A)中是否已存在催化剂B),多异氰酸酯组合物A)与至少一种催化剂B)组合着形成“反应混合物”,即多异氰酸酯A)和至少一种催化剂B)在空间上接近,以使催化剂B)可引起多异氰酸酯A)中所含的多异氰酸酯的交联。
从实施例2(表4)中显而易见,有机或无机铁化合物、铅化合物、锡化合物、铋化合物或锌化合物的使用产生具有较低摆撞硬度的涂层。因此,如在方法步骤c)中的催化交联开始时存在的反应混合物含有最多0.5重量%,更优选最多0.2重量%,再更优选最多0.1重量%,特别优选仅最多0.01重量%的有机和无机铁化合物、铅化合物、锡化合物、铋化合物和锌化合物。上述含量基于在方法步骤c)开始时存在的反应混合物的固含量,即反应混合物的重量减去水和有机溶剂计。
本文所用的术语“多异氰酸酯”是在分子中含有两个或更多个异氰酸酯基团(这被本领域技术人员理解为是指通用结构–N=C=O的游离异氰酸酯基团)的化合物的集合术语。这些多异氰酸酯的最简单和最重要的代表是二异氰酸酯。它们具有通用结构O=C=N–R–N=C=O,其中R通常代表脂族、脂环族和/或芳族基团。
由于多官能度(≥ 2个异氰酸酯基团),可以由多异氰酸酯制造多种聚合物(例如聚氨酯、聚脲和聚异氰脲酸酯)和低分子量化合物(例如具有脲二酮、异氰脲酸酯、脲基甲酸酯、缩二脲、亚氨基噁二嗪二酮和/或噁二嗪三酮结构的那些)。
术语“多异氰酸酯”在本申请中同样是指单体和/或低聚多异氰酸酯。但是,为了理解本发明的许多方面,重要的是区分单体二异氰酸酯和低聚多异氰酸酯。如果在本申请中提到“低聚多异氰酸酯”,这是指由至少两个单体二异氰酸酯分子形成的多异氰酸酯,即构成或含有由至少两个单体二异氰酸酯分子形成的反应产物的化合物。
由单体二异氰酸酯制备低聚多异氰酸酯在本文中也被称为单体二异氰酸酯的改性。本文所用的这种“改性”在此是指单体二异氰酸酯的反应以产生具有脲二酮、异氰脲酸酯、脲基甲酸酯、缩二脲、亚氨基噁二嗪二酮和/或噁二嗪三酮结构的低聚多异氰酸酯。
例如,己二异氰酸酯(HDI)是“单体二异氰酸酯”,因为其含有两个异氰酸酯基团并且不是由至少两个多异氰酸酯分子形成的反应产物:
相反,由至少两个HDI分子形成并仍还具有至少两个异氰酸酯基团的反应产物是本发明意义上的“低聚多异氰酸酯”。这样的“低聚多异氰酸酯”的代表是由单体HDI开始的例如HDI异氰脲酸酯和HDI缩二脲,它们各自由三个单体HDI单元形成:
“多异氰酸酯组合物A)”在本发明的意义上是指初始反应混合物中的异氰酸酯组分。换言之,这是初始反应混合物中的所有具有异氰酸酯基团的化合物的总和。多异氰酸酯组合物A)因此用作本发明的方法中的反应物。当在本文中提到“多异氰酸酯组合物A)”,尤其是“提供多异氰酸酯组合物A)”时,这是指存在并使用多异氰酸酯组合物A)作为反应物。
根据本发明,基于多异氰酸酯组合物A)的总量计,异氰酸酯基团的重量含量为至少15重量%。
原则上,单体和低聚多异氰酸酯同样适合用于本发明的多异氰酸酯组合物A)。因此,多异氰酸酯组合物A)可基本由单体多异氰酸酯或基本由低聚多异氰酸酯构成。但是,其也可包含任意混合比的低聚和单体多异氰酸酯。
在本发明的一个优选实施方案中,在三聚中用作反应物的多异氰酸酯组合物A)是贫单体(即贫单体二异氰酸酯)的并已含有低聚多异氰酸酯。术语“贫单体”和“贫单体二异氰酸酯”在本文中对于多异氰酸酯组合物A)同义使用。
当多异氰酸酯组合物A)具有在每种情况下基于多异氰酸酯组合物A)的重量计最多20重量%,尤其最多15重量%或最多10重量%的在多异氰酸酯组合物A)中的单体二异氰酸酯含量时,建立特别有实用意义的结果。优选地,多异氰酸酯组合物A)具有最多5重量%,优选最多2.0重量%,特别优选最多1.0重量%的单体二异氰酸酯含量,在每种情况下基于多异氰酸酯组合物A)的重量计。当聚合物组合物A)基本不含单体二异氰酸酯时,建立特别好的结果。“基本不含”在此是指单体二异氰酸酯的含量为最多0.5重量%,基于多异氰酸酯组合物A)的重量计。
在本发明的一个特别优选的实施方案中,多异氰酸酯组合物A)完全或在至少80、85、90、95、98、99或99.5重量%(在每种情况下基于多异氰酸酯组合物A)的重量计)的程度上由低聚多异氰酸酯构成。在此优选的是至少99重量%的低聚多异氰酸酯含量。低聚多异氰酸酯的这种含量基于如其被供应时的多异氰酸酯组合物A)计。这就是说,低聚多异氰酸酯不在本发明的方法的过程中作为中间体形成,而是在反应开始时已存在于用作反应物的多异氰酸酯组合物A)中。
贫单体或基本不含单体异氰酸酯的多异氰酸酯组合物可以通过在每种情况下在实际改性反应后进行至少一个用于分离出未转化的过量单体二异氰酸酯的进一步方法步骤来获得。可以通过本身已知的方法,优选通过在高真空下的薄层蒸馏或通过用对异氰酸酯基团呈惰性的合适溶剂,例如脂族或脂环族烃,如戊烷、己烷、庚烷、环戊烷或环己烷萃取而以特别实用的方式实现所述单体分离。
在本发明的一个优选实施方案中,本发明的多异氰酸酯组合物A)通过将单体二异氰酸酯改性和随后分离出未转化的单体来获得。
但是,在本发明的一个特定实施方案中,贫单体的多异氰酸酯组合物A)含有单体外来二异氰酸酯。在本文中,“单体外来二异氰酸酯”是指其不同于已用于制备多异氰酸酯组合物A)中所含的低聚多异氰酸酯的单体二异氰酸酯。
单体外来二异氰酸酯的加入可能有利于实现特殊技术效果,例如特别的硬度。当多异氰酸酯组合物A)具有在每种情况下基于多异氰酸酯组合物A)的重量计最多20重量%,尤其最多15重量%或最多10重量%的在多异氰酸酯组合物A)中的单体外来二异氰酸酯含量时,建立特别有实用意义的结果。优选地,多异氰酸酯组合物A)具有在每种情况下基于多异氰酸酯组合物A)的重量计最多5重量%,优选最多2.0重量%,特别优选最多1.0重量%的单体外来二异氰酸酯含量。
在本发明的方法的另一特定实施方案中,多异氰酸酯组合物A)含有单体单异氰酸酯或具有大于2的异氰酸酯官能度,即具有每分子多于两个异氰酸酯基团的单体异氰酸酯。已经发现单体单异氰酸酯或具有大于2的异氰酸酯官能度的单体异氰酸酯的加入是有利的,以影响该涂层的网络密度。当多异氰酸酯组合物A)具有在每种情况下基于多异氰酸酯组合物A)的重量计最多20重量%,尤其最多15重量%或最多10重量%的在多异氰酸酯组合物A)中的单体单异氰酸酯或具有大于2的异氰酸酯官能度的单体异氰酸酯的含量时,建立特别有实用意义的结果。优选地,多异氰酸酯组合物A)具有在每种情况下基于多异氰酸酯组合物A)的重量计最多5重量%,优选最多2.0重量%,特别优选最多1.0重量%的单体单异氰酸酯或具有大于2的异氰酸酯官能度的单体异氰酸酯的含量。优选地,在本发明的三聚反应中不一起使用单体单异氰酸酯或具有大于2的异氰酸酯官能度的单体异氰酸酯。
低聚多异氰酸酯根据本发明尤其可以具有脲二酮、异氰脲酸酯、脲基甲酸酯、缩二脲、亚氨基噁二嗪二酮和/或噁二嗪三酮结构。在本发明的一个实施方案中,低聚多异氰酸酯具有下列低聚结构类型或其混合物的至少一种:
在本发明的一个优选实施方案中,使用聚合物组合物A),其异氰脲酸酯结构含量为至少50摩尔%,优选至少60摩尔%,更优选至少70摩尔%,再更优选至少80摩尔%,再更优选至少90摩尔%,特别优选至少95摩尔%,基于多异氰酸酯组合物A)中存在的选自脲二酮、异氰脲酸酯、脲基甲酸酯、缩二脲、亚氨基噁二嗪二酮和噁二嗪三酮结构的低聚结构的总和计。
在本发明的另一个优选的实施方案中,在本发明的方法中,使用除异氰脲酸酯结构外还含有至少一种具有脲二酮、缩二脲、脲基甲酸酯、亚氨基噁二嗪二酮和噁二嗪三酮结构及其混合物的其它低聚多异氰酸酯的多异氰酸酯组合物A)。
可以例如通过NMR谱法测定多异氰酸酯A)中的脲二酮、异氰脲酸酯、脲基甲酸酯、缩二脲、亚氨基噁二嗪二酮和/或噁二嗪三酮结构的含量。在此可以优选使用13C NMR谱法,其优选为质子解耦的,因为所提到的低聚结构产生特征信号。
无论所基于的低聚结构(脲二酮、异氰脲酸酯、脲基甲酸酯、缩二脲、亚氨基噁二嗪二酮和/或噁二嗪三酮结构)如何,用于本发明的方法的低聚多异氰酸酯组合物A)和/或其中所含的低聚多异氰酸酯优选具有2.0至5.0,优选2.3至4.5的(平均)NCO官能度。
当根据本发明使用的多异氰酸酯组合物A)具有在每种情况下基于多异氰酸酯组合物A)的重量计8.0重量%至28.0重量%,优选14.0重量%至25.0重量%的异氰酸酯基团含量时,建立特别有实用意义的结果。
要根据本发明用于多异氰酸酯组合物A)的具有脲二酮、异氰脲酸酯、脲基甲酸酯、缩二脲、亚氨基噁二嗪二酮和/或噁二嗪三酮结构的低聚多异氰酸酯的制备方法例如描述在J. Prakt. Chem. 336 (1994) 185 - 200、DE-A 1 670 666、DE-A 1 954 093、DE-A 2414 413、DE-A 2 452 532、DE-A 2 641 380、DE-A 3 700 209、DE-A 3 900 053和DE-A 3928 503或EP-A 0 336 205、EP-A 0 339 396和EP-A 0 798 299中。
在本发明的一个附加或替代性的实施方案中,本发明的多异氰酸酯组合物A)被定义为其含有低聚多异氰酸酯,所述低聚多异氰酸酯无论所用改性反应的类型如何已在遵循5%至45%,优选10%至40%,特别优选15%至30%的低聚度的情况下获自单体二异氰酸酯。“低聚度”在此被理解为是指最初存在于起始混合物中的异氰酸酯基团的在制备过程中在形成脲二酮、异氰脲酸酯、脲基甲酸酯、缩二脲、亚氨基噁二嗪二酮和/或噁二嗪三酮结构的情况下消耗的百分比。
用于制造用于本发明的方法的多异氰酸酯组合物A)和其中所含的单体和/或低聚多异氰酸酯的合适多异氰酸酯是可以各种方式,例如通过在液相或气相中光气化或通过无光气途径,例如通过热氨酯裂解而获得的任意多异氰酸酯。当该多异氰酸酯是单体二异氰酸酯时,建立特别好的结果。优选的单体二异氰酸酯是具有140至400 g/mol的分子量、具有脂族、脂环族、芳脂族和/或芳族键合的异氰酸酯基团的那些,例如1,4-丁烷二异氰酸酯(BDI)、1,5-戊烷二异氰酸酯(PDI)、1,6-己烷二异氰酸酯(HDI)、2-甲基-1,5-戊烷二异氰酸酯、1,5-二异氰酸根合-2,2-二甲基戊烷、2,2,4-或2,4,4-三甲基-1,6-己烷二异氰酸酯、1,10-癸烷二异氰酸酯、1,3-和1,4-环己烷二异氰酸酯、1,4-二异氰酸根合-3,3,5-三甲基环己烷、1,3-二异氰酸根合-2-甲基环己烷、1,3-二异氰酸根合-4-甲基环己烷、1-异氰酸根合-3,3,5-三甲基-5-异氰酸根合甲基环己烷(异佛尔酮二异氰酸酯;IPDI)、1-异氰酸根合-1-甲基-4(3)-异氰酸根合甲基环己烷、2,4'-和4,4'-二环己基甲烷二异氰酸酯(H12MDI)、1,3-和1,4-双(异氰酸根合甲基)环己烷、双(异氰酸根合甲基)降冰片烷(NBDI)、4,4'-二异氰酸根合-3,3'-二甲基二环己基甲烷、4,4'-二异氰酸根合-3,3',5,5'-四甲基二环己基甲烷、4,4'-二异氰酸根合-1,1'-二(环己基)、4,4'-二异氰酸根合-3,3'-二甲基-1,1'-二(环己基)、4,4'-二异氰酸根合-2,2',5,5'-四甲基-1,1'-二(环己基)、1,8-二异氰酸根合-对薄荷烷、1,3-金刚烷二异氰酸酯、1,3-二甲基-5,7-金刚烷二异氰酸酯、1,3-和1,4-双(异氰酸根合甲基)苯(苯二亚甲基二异氰酸酯;XDI)、1,3-和1,4-双(1-异氰酸根合-1-甲基乙基)苯(TMXDI)和双(4-(1-异氰酸根合-1-甲基乙基)苯基)碳酸酯、2,4-和2,6-甲苯二异氰酸酯(TDI)、2,4'-和4,4'-二苯甲烷二异氰酸酯(MDI)、1,5-萘二异氰酸酯和这类二异氰酸酯的任意混合物。同样合适的其它二异氰酸酯另外可见于例如Justus Liebigs Annalen derChemie, 第562卷(1949)第75-136页。
可任选用于多异氰酸酯组合物A)的合适的单体单异氰酸酯是例如异氰酸正丁酯、异氰酸正戊酯、异氰酸正己酯、异氰酸正庚酯、异氰酸正辛酯、异氰酸十一烷基酯、异氰酸十二烷基酯、异氰酸十四烷基酯、异氰酸鲸蜡酯、异氰酸十八酯、异氰酸环戊酯、异氰酸环己酯、异氰酸3-或4-甲基环己酯或这类单异氰酸酯的任意混合物。作为可任选添加到多异氰酸酯组合物A)中的具有大于2的异氰酸酯官能度的单体异氰酸酯,可提到4-异氰酸根合甲基-1,8-辛烷二异氰酸酯(壬烷三异氰酸酯;TIN)。
在本发明的一个实施方案中,多异氰酸酯组合物A)含有在每种情况下基于多异氰酸酯组合物A)的重量计最多30重量%,尤其最多20重量%、最多15重量%、最多10重量%、最多5重量%或最多1重量%的芳族多异氰酸酯。本文所用的“芳族多异氰酸酯”是指具有至少一个芳族键合的异氰酸酯基团的多异氰酸酯。
芳族键合的异氰酸酯基团被理解为是指键合到芳烃基上的异氰酸酯基团。
在本发明的方法的一个优选实施方案中,使用仅具有脂族和/或脂环族键合的异氰酸酯基团的多异氰酸酯组合物A)。
脂族和脂环族键合的异氰酸酯基团分别被理解为是指键合到脂族和脂环族烃基上的异氰酸酯基团。在本发明的方法的另一优选实施方案中,使用由一种或多种低聚多异氰酸酯构成或包含其的多异氰酸酯组合物A),其中所述一种或多种低聚多异氰酸酯仅具有脂族和/或脂环族键合的异氰酸酯基团。
在本发明的另一个实施方案中,多异氰酸酯组合物A)在至少70、80、85、90、95、98或99重量%(在每种情况下基于多异氰酸酯组合物A)的重量计)的程度上由仅具有脂族和/或脂环族键合的异氰酸酯基团的多异氰酸酯构成。实际实验已经表明,用其中所含的低聚多异氰酸酯仅具有脂族和/或脂环族键合的异氰酸酯基团的多异氰酸酯组合物A)可实现特别好的结果。
在本发明的方法的一个特别优选的实施方案中,使用由一种或多种低聚多异氰酸酯构成或包含其的多异氰酸酯组合物A),其中所述一种或多种低聚多异氰酸酯基于1,4-丁烷二异氰酸酯(BDI)、1,5-戊烷二异氰酸酯(PDI)、1,6-己烷二异氰酸酯(HDI)、异佛尔酮二异氰酸酯(IPDI)或4,4'-二环己基甲烷二异氰酸酯(H12MDI)或其混合物形成。
在本发明的另一个实施方案中,在本发明的方法中,使用具有大于500 mPas且小于200000 mPas,优选大于1000 mPas且小于100000 mPas,特别优选大于1000 mPas且小于50000 mPas的根据DIN EN ISO 3219在21℃下测得的粘度的多异氰酸酯组合物A)。
由于常规聚氨酯涂层具有比可通过本发明的方法获得的涂层更少的有利性质,在该方法的范畴中形成氨基甲酸酯基团是不合意的。出于该原因,将最多50%,更优选最多30%,再更优选最多20%,最优选最多10%的异氰酸酯反应性基团添加到多异氰酸酯组合物A)中。优选的是,在方法步骤c)开始时存在的反应混合物的其它组分也具有足够低的异氰酸酯反应性基团含量,以使整个反应混合物在方法步骤c)开始时含有最多50重量%,更优选最多30重量%,再更优选最多20重量%,最优选最多10重量%的异氰酸酯反应性基团。这相当于在方法步骤c)开始时的反应混合物中最多0.5:1、0.3:1、0.2:1或0.1:1的异氰酸酯反应性基团与异氰酸酯基团的摩尔比。作为异氰酸酯基团与异氰酸酯反应性基团的摩尔比,计算上述含量。如本申请中理解的异氰酸酯反应性基团是羟基、氨基和硫醇基团。
多异氰酸酯组合物A)可通过本身已知的不同方法施加。为了制造涂层,例如漆,可以例如通过喷涂、抹涂、浸涂、浇注、流涂或借助刷子、辊或刮刀,或通过印刷技术,优选丝网印刷、阀喷射(Valvejet)或压电印刷将包含催化剂B)和多异氰酸酯组合物A)的反应混合物以一个或多个层施加到任意基底上。在涂覆前也可任选为基底配备常规底漆。
优选地,要涂覆的表面基本由选自矿物质、金属、硬质塑料、软质塑料、纺织品、皮革、木材、木材衍生物和纸的材料构成。更优选地,要涂覆的表面基本由选自金属、木材、玻璃、石材、陶瓷材料、混凝土、硬质塑料、软质塑料、织物、皮革和纸的材料构成。
当与多异氰酸酯组合物A)接触的面积的不大于50%,优选该面积的不大于30%,最优选该面积的不大于20%由外来材料构成时,表面“基本”由上述材料之一构成。
更优选通过本发明的方法涂覆层压地板的覆盖层和/或装饰纸。
多异氰酸酯组合物A)优选以1 µm至300 µm,更优选50 µm至100 µm的层厚度施加。
术语“多异氰酸酯组合物A)的催化交联”是指多异氰酸酯组合物A)中存在的低聚和任选单体多异氰酸酯的进一步交联。这在至少一种合适的催化剂B)存在下实施。
优选的是,在方法步骤b)之前使多异氰酸酯组合物A)与催化剂组合物B)接触。由于本发明的低聚多异氰酸酯在与本发明的催化剂组合物混合后具有1分钟至720分钟的适用期,在方法步骤b)之前在上述时期内才适宜地使这两种组分互相接触。这优选通过混合这两种组分来实施,并可通过在聚氨酯涂料领域中已知用于使用双组分体系的所有方法和装置实现。但是,多异氰酸酯组合物A)和催化剂组合物B)的施加也有可能如上所述以分开的层的形式。
优选地,在方法步骤b)之前使多异氰酸酯组合物A)和催化剂组合物B)彼此接触不大于720分钟,更优选不大于300分钟,再更优选不大于60分钟,最优选不大于10分钟。
在本发明的一个优选实施方案中,在室温下实现催化交联。术语“室温”优选是指5℃至47℃,更优选10℃至35℃,最优选15℃至25℃的温度范围。当使用本发明的催化剂时,优选在无需使催化剂在超过47℃下进一步热活化的情况下开始交联反应。
在本发明的另一优选实施方案中,在47℃至250℃,更优选80℃至200℃的温度范围内实施催化交联。
在本发明的一个优选实施方案中,在方法步骤c)中的催化交联过程中,多异氰酸酯组合物A)中的异氰脲酸酯基团的量增加至少10%,优选至少30%,更优选至少50%,再更优选至少100%,最优选至少200%。此处的基准是在方法步骤a)中提供的多异氰酸酯组合物A)中存在的异氰脲酸酯基团的量。
用于本发明的方法的合适的催化剂B)在原则上是加速异氰脲酸酯基团加成产生异氰脲酸酯、脲二酮、脲基甲酸酯、缩二脲、亚氨基噁二嗪二酮、噁二嗪三酮结构、脲和氨基甲酸酯基团并因此使多异氰酸酯组合物A)中包含的含异氰酸酯基团的分子交联的所有化合物。优选地,本发明的配制剂交联并形成异氰脲酸酯、脲二酮和脲基团。
用于本发明的方法的合适的催化剂B)是例如简单叔胺,例如三乙基胺、三丁基胺、N,N-二甲基苯胺、N-乙基哌啶或N,N'-二甲基哌嗪。合适的催化剂还有GB 2 221 465中描述的叔羟基烷基胺,例如三乙醇胺、N-甲基二乙醇胺、二甲基乙醇胺、N-异丙基二乙醇胺和1-(2-羟乙基)吡咯烷,或从GB 2 222 161中获知的催化剂体系,其由叔双环胺,例如DBU与低分子量的简单脂族醇的混合物构成。
适用于本发明的方法的其它三聚催化剂B是例如从DE-A 1 667 309、EP-A 0 013880和EP-A 0 047 452中获知的季铵氢氧化物,例如四乙基氢氧化铵、三甲基苄基氢氧化铵、N,N-二甲基-N-十二烷基-N-(2-羟乙基)氢氧化铵、N-(2-羟乙基)-N,N-二甲基-N-(2,2'-二羟甲基丁基)氢氧化铵和1-(2-羟乙基)-1,4-二氮杂双环[2.2.2]辛烷氢氧化物(环氧乙烷和水与1,4-二氮杂双环[2.2.2]辛烷的单加成物),从EP-A 37 65或EP-A 10 589中获知的季羟基烷基铵氢氧化物,例如N,N,N-三甲基-N-(2-羟乙基)氢氧化铵,从DE-A2631733、EP-A 0 671 426、EP-A 1 599 526和US 4,789,705中获知的三烷基羟基烷基铵羧酸盐,例如对叔丁基苯甲酸N,N,N-三甲基-N-2-羟丙基铵和2-乙基己酸N,N,N-三甲基-N-2-羟丙基铵,从EP-A 1 229 016中获知的季苄基铵羧酸盐,如特戊酸N-苄基-N,N-二甲基-N-乙基铵、2-乙基己酸N-苄基-N,N-二甲基-N-乙基铵、2-乙基己酸N-苄基-N,N,N-三丁基铵、2-乙基己酸N,N-二甲基-N-乙基-N-(4-甲氧基苄基)铵或特戊酸N,N,N-三丁基-N-(4-甲氧基苄基)铵,从WO 2005/087828中获知的四取代铵α-羟基羧酸盐,例如四甲基乳酸铵,从EP-A 0 339 396、EP-A 0 379 914和EP-A 0 443 167中获知的季铵或鏻氟化物,例如具有C8-C10-烷基的N-甲基-N,N,N-三烷基铵氟化物、氟化N,N,N,N-四-正丁基铵、氟化N,N,N-三甲基-N-苄基铵、氟化四甲基鏻、氟化四乙基鏻或氟化四正丁基鏻,从EP-A 0 798 299、EP-A 0896 009和EP-A 0 962 455中获知的季铵和鏻多氟化物,例如多氟化氢苄基三甲基铵,从EP-A 0 668 271中获知并可通过叔胺与碳酸二烷基酯的反应获得的烷基碳酸四烷基铵,或甜菜碱结构化的季铵烷基碳酸盐,从WO 1999/023128中获知的季铵碳酸氢盐,如胆碱碳酸氢盐,从EP 0 102 482中获知并可由叔胺与磷的酸的起烷基化作用的酯获得的季铵盐,例如三乙基胺、DABCO或N-甲基吗啉与甲基膦酸二甲酯的反应产物,或从WO 2013/167404中获知的内酰胺的四取代铵盐,例如三辛基铵己内酰胺盐或十二烷基三甲基铵己内酰胺盐。
同样适合作为用于本发明的方法的交联催化剂B)是多种不同的金属化合物。合适的实例是在DE-A 3 240 613中作为催化剂描述的锰、钴、镍、铜、锆或铈的辛酸盐和环烷酸盐或其与锂、钠、钾、钙或钡的乙酸盐的混合物、从DE-A 3 219 608中获知的具有最多10个碳原子的直链或支化烷羧酸,例如丙酸、丁酸、戊酸、己酸、庚酸、辛酸、壬酸、癸酸和十一酸的钠和钾盐,从EP-A 0 100 129中获知的具有2至20个碳原子的脂族、脂环族或芳族单和多羧酸的碱金属或碱土金属盐,例如苯甲酸钠或钾,从GB-A 1 391 066和GB-A 1 386 399中获知的碱金属酚盐,例如苯酚钠或钾,从GB 809 809中获知的碱金属和碱土金属氧化物、氢氧化物、碳酸盐、醇盐和酚盐,可烯醇化的化合物的碱金属盐以及弱脂族或脂环族羧酸的金属盐,例如甲醇钠、乙酸钠、乙酸钾、乙酰乙酸钠,从EP-A 0 056 158和EP-A 0 056 159中获知的与冠醚或聚醚醇络合的碱性碱金属化合物,例如络合的羧酸钠或钾,从EP-A 0 033581中获知的吡咯烷酮-钾盐。
适用于本发明的方法的其它交联催化剂可见于例如J. H. Saunders和K. C.Frisch, Polyurethanes Chemistry and Technology, 第94页及其后(1962)和其中引用的文献。
催化剂B)既可以独自,也可以彼此的任意混合物的形式用于本发明的方法。
优选的催化剂B)是上述类型的金属化合物,尤其是与络合剂,如冠醚或聚乙二醇或聚丙二醇组合的碱金属、碱土金属或锆的羧酸盐和醇盐以及所述类型的有机锡化合物。
特别优选的交联催化剂B)是与络合剂,如冠醚或聚乙二醇或聚丙二醇组合的具有2至20个碳原子的脂族羧酸的钠和钾盐,以及脂族取代的锡化合物。
用于本发明的方法的非常特别优选的交联催化剂B)是与络合剂,如冠醚或聚乙二醇或聚丙二醇组合的乙酸钾,辛酸锡和/或氧化三丁基锡。但是,只有当固化在最多50℃的温度范围内实施时使用辛酸锡和/或氧化三丁基锡才优选。
在本申请所基于的研究中已经发现,令人惊讶地,如US 6,133,397中所述使用锡化合物作为附加催化剂会降低涂层的硬度。因此,在本发明的一个优选实施方案中,在方法步骤c)开始时反应混合物含有优选最多0.2重量%,更优选最多0.1重量%,再更优选最多0.01重量%的有机或无机铁化合物、铅化合物、锡化合物、铋化合物或锌化合物。这些数值基于反应混合物的总重量计。当方法步骤c)不在室温下而是在升高的温度,优选至少50℃,更优选至少80℃,再更优选至少100℃下进行时,这一实施方案尤其优选。
上述化合物中的金属优选具有各自典型的氧化还原态。这对于铅而言是II、对于铁而言II和III、对于锡而言IV、对于铋而言III和对于锌而言II。相应的铁化合物优选是氯化铁(II)和氯化铁(III)。相应的铋化合物优选是月桂酸铋(III)、2-乙基己酸铋(III)、辛酸铋(III)和新癸酸铋(III)。相应的锌化合物优选是氯化锌和2-乙基己酸锌。相应的锡化合物优选是辛酸锡(II)、乙基己酸锡(II)、棕榈酸锡(II)、二月桂酸二丁基锡(IV)(DBTL)和二氯化二丁基锡(IV)。相应的铅化合物优选是辛酸铅。
在一个更优选的实施方案中,上述有机和无机锡和铋化合物在反应混合物中的含量限于上述浓度。非常特别优选地,DBTL和2-乙基己酸铋(III)在反应混合物中的含量限于上述浓度。
在本发明的方法中,交联催化剂B)通常以基于所用多异氰酸酯组合物A)的量计0.0005重量%至5.0重量%,优选0.0010重量%至2.0重量%,更优选0.0015重量%至1.0重量%的浓度使用。
用于本发明的方法的交联催化剂B)以对于引发交联反应所需的量通常足以溶于多异氰酸酯组合物A)中。催化剂B)因此优选以物质形式添加到多异氰酸酯组合物A)中。
但是,任选地,催化剂B)也可以溶解在合适的有机溶剂中的形式使用,以改进它们的可并入性。在此,可以在极宽范围内自由地选择催化剂溶液的稀释度。这类催化剂溶液通常在大约0.01重量%的浓度以上是催化活性的。
合适的催化剂溶剂是例如对异氰酸酯基团呈惰性的溶剂,例如己烷、甲苯、二甲苯、氯苯、乙酸乙酯、乙酸丁酯、二乙二醇二甲基醚、二丙二醇二甲基醚、乙二醇单甲基或单乙基醚乙酸酯、二乙二醇乙基和丁基醚乙酸酯、丙二醇单甲基醚乙酸酯、乙酸1-甲氧基-2-丙基酯、乙酸3-甲氧基-正丁基酯、丙二醇二乙酸酯、丙酮、甲乙酮、甲基异丁基酮、环己酮、内酯如β-丙内酯、γ-丁内酯、ε-己内酯和ε-甲基己内酯,以及如N-甲基吡咯烷酮和N-甲基己内酰胺、碳酸1,2-亚丙酯、二氯甲烷、二甲亚砜、磷酸三乙酯之类的溶剂或这种溶剂的任意混合物。
如果在本发明的方法中使用催化剂溶剂,优选使用带有异氰酸酯反应性基团并可并入聚异氰脲酸酯塑料中的催化剂溶剂。这类溶剂的实例是一元或多元简单醇,例如甲醇、乙醇、正丙醇、异丙醇、正丁醇、正己醇、2-乙基-1-己醇、乙二醇、丙二醇、异构丁二醇、2-乙基-1,3-己二醇或甘油;醚醇,例如1-甲氧基-2-丙醇、3-乙基-3-羟甲基氧杂环丁烷、四氢糠醇、乙二醇单甲基醚、乙二醇单乙基醚、乙二醇单丁基醚、二乙二醇单甲基醚、二乙二醇单乙基醚、二乙二醇单丁基醚、二乙二醇、二丙二醇或液体高分子量聚乙二醇、聚丙二醇、混合聚乙二醇/聚丙二醇及其单烷基醚;酯醇,例如乙二醇单乙酸酯、丙二醇单月桂酸酯、甘油单乙酸酯和二乙酸酯、甘油单丁酸酯或2,2,4-三甲基-1,3-戊二醇单异丁酸酯;不饱和醇,例如烯丙醇、1,1-二甲基烯丙醇或油醇;芳脂族醇,例如苄醇;N-单取代酰胺,例如N-甲基甲酰胺、N-甲基乙酰胺、氰基乙酰胺或2-吡咯烷酮,或这种溶剂的任意混合物。
可通过本发明的方法获得的涂层本身,即在没有添加相应辅助剂和添加剂C)的情况下的特征已在于极好的耐光性。但是,在其制造中任选也可以一起使用常规辅助剂和添加剂C),例如常规填料、消光剂、紫外线稳定剂、抗氧化剂、脱模剂、水清除剂、滑爽添加剂、消泡剂、流平剂、流变添加剂、阻燃剂和/或颜料。
除填料和阻燃剂外的这些辅助剂和添加剂C)通常以基于多异氰酸酯组合物A)计小于10重量%,优选小于5重量%,特别优选最多3重量%的量存在于涂层中。作为所用阻燃剂的总量计算,阻燃剂通常以基于多异氰酸酯组合物A)计最多70重量%,优选最多50重量%,特别优选最多30重量%的量存在于涂层中。
除任选一起使用的少量催化剂溶剂外,本发明的方法优选以无溶剂方式进行。为了降低加工粘度,多异氰酸酯组合物A)也可任选用有机溶剂稀释。对此合适的溶剂是例如上文已描述的对异氰酸酯基团呈惰性的催化剂溶剂。
本发明的方法产生高度转化的聚合物,其特征在于多异氰酸酯组合物A)中所含的异氰酸酯的交联反应基本完全。当多异氰酸酯组合物A)中最初存在的游离异氰酸酯基团的至少80%,优选至少90%,特别优选至少95%已反应时,交联反应在本发明的意义上可被视为“基本完全”。换言之,在本发明的涂层中仅还存在多异氰酸酯组合物A)中最初所含的异氰酸酯基团的优选最多20%、最多10%,特别优选最多5%。这可通过将本发明的方法中的催化交联进行到直至如下的转化度来实现,其中仅还存在多异氰酸酯组合物A)中最初所含的异氰酸酯基团的例如最多20%,以获得高度转化的反应产物。可通过原始多异氰酸酯组合物A)中的以重量%计的异氰酸酯基团含量与反应产物中的以重量%计的异氰酸酯基团含量的比较,例如通过借助红外光谱学在大约2270 cm-1的异氰酸酯谱带强度的上述比较测定仍存在的异氰酸酯基团的百分比。
通过本发明的方法制成的涂层具有极其有利的应用技术性质。特别地,其硬度及其机械或化学耐受性大于由常规PU涂层获知的。同时,不同于US 6,133,397和WO 2015/166983中描述的异氰脲酸酯聚合物,该涂层可在室温下固化,而在此其有利性质不受损。特别在大型工件的涂层中,在室温下固化是有利的,因为在这种情况下不需要容纳整个工件的烘箱。
优选根据DIN EN ISO 1522作为摆撞硬度测量涂层的硬度。“具有大硬度”的涂层优选具有至少100秒,更优选至少120秒,再更优选至少150秒,最优选至少180秒的König摆撞硬度。
优选作为“耐指甲划痕性”或作为铅笔硬度测定涂层的机械耐受性。通过用手指甲划过涂层来测定“耐指甲划痕性”。评估划刻后的表面状况。根据DIN EN ISO 15184测定铅笔硬度。
通过将含有受试化学品或由其构成的试验流体施加到经涂覆的表面上并用陪替氏培养皿覆盖,测定化学耐受性。随后的培养在室温下进行。在特定的时间间隔后,检查涂层的变色、褪色、光泽损失、溶胀和泡疤的存在。具有高耐受性的涂层优选仅在轻微程度上表现出上述变化;更优选根本不可见变化。
可通过本发明的方法获得的涂层尤其对乙醇、墨水、稀氢氧化钠溶液、丙酮和HSDOT 4(制动液,可获自ARAL AG, 德国)具有提高的耐受性。HS DOT 4是不同聚二醇的混合物。这种耐受性优选被定义为配备有本发明涂层的表面甚至在用上述化学品培养16小时后也没有可见变化。
此外,可通过本发明的方法获得的涂层对用于除去喷漆的洗涤剂具有高耐受性。这种耐受性优选被定义为甚至在使用相应的洗涤剂10次后该表面也不存在可见损伤。
在另一实施方案中,本发明涉及可通过上述方法获得的表面涂层。
在再另一实施方案中,本发明涉及被上述表面涂层涂覆的表面。
在另一实施方案中,本发明涉及含有低聚多异氰酸酯并且贫单体多异氰酸酯的多异氰酸酯组合物A)在反应混合物中最多0.5重量%的有机和无机铁化合物、铅化合物、锡化合物、铋化合物和锌化合物存在下用于制造具有高机械和/或化学耐受性的表面涂层的用途。
除非另行指明,上文中对本发明的方法给出的所有定义也可用于本发明的产品和用途。
在第一方面中,本发明涉及制造具有大硬度和高机械和/或化学耐受性的表面涂层的方法,其包括方法步骤
a)提供多异氰酸酯组合物A),其中异氰酸酯含量为至少15重量%;
b)将所述多异氰酸酯组合物A)施加到表面上;和
c)在催化剂B)存在下催化交联所述多异氰酸酯组合物A)。
在第二方面中,本发明涉及根据方面1的方法,其中所述催化交联在室温下实施。
在第三方面中,本发明涉及根据方面1或2的方法,其中所述催化剂是与冠醚组合的弱脂族或脂环族羧酸的金属盐。
在第四方面中,本发明涉及根据方面1至3任一项的方法,其中制成的表面涂层具有至少80秒的König摆撞硬度。
在第五方面中,本发明涉及根据方面1至3任一项的方法,其中制成的表面涂层具有至少100秒的König摆撞硬度。
在第六方面中,本发明涉及根据方面1至5任一项的方法,其中制成的表面涂层具有提高的化学耐受性。
在第七方面中,本发明涉及根据方面1至6任一项的方法,所述涂层对选自乙醇、墨水、氢氧化钠溶液和HS DOT 4的至少一种试剂特别耐受。
在第八方面中,本发明涉及根据方面1至7任一项的方法,其中在方法步骤c)中的催化交联过程中,多异氰酸酯组合物A)中的异氰脲酸酯基团的量与方法步骤a)中存在的量相比增加至少10%。
在第九方面中,本发明涉及可通过根据方面1至8任一项的方法获得的表面涂层。
在第十方面中,本发明涉及被根据方面9的表面涂层涂覆的表面。
在第十一方面中,本发明涉及根据方面10的表面,其中所述表面选自矿物质、金属、硬质塑料、软质塑料、纺织品、皮革、木材、木材衍生物和纸。
在第十二方面中,本发明涉及含有低聚多异氰酸酯并且贫单体多异氰酸酯的多异氰酸酯组合物A)用于制造具有高机械和/或化学耐受性的表面涂层的用途。
下列实施例用于例示本发明。它们不应以任何方式限制专利权利要求书的保护范围。
实施例
试验方法的描述
类似于DIN EN ISO 1522:2007-04的摆撞硬度: 摆杆阻尼试验是一种在摆杆阻尼仪器中根据DIN EN ISO 1522测定涂层的粘弹性性质的方法,因此是其硬度的一个量度。其由样品台(在其上,摆杆可在样品表面上自由摆动)和计数器构成。在特定的角度范围内的摆动次数是涂层硬度的量度并以秒或摆动次数示出。
在Taber Abraser仪器中使用CS10摩擦辊(中等硬度)的耐磨性。将漆施加到试样上。在适当固化时间后,进行试验。将试样(具有涂层的基底)称重并确定起始重量。预先规定摩擦循环次数,在其后将试样称重和因此得出磨损重量。将试样固定在样品支架中,安上摩擦辊和吸力,开始磨损试验。为了测定耐磨性,测量重量损失。用规定的旋转循环次数划刻试样,并通过重量差确定样品的磨损含量。
通过DUR-O-Test的硬度试验:该仪器由套筒构成,在该套筒中已插入螺旋弹簧,该螺旋弹簧可借助滑动调节器设定至不同程度的张力。该弹簧作用于硬金属笔(ø 1 mm),其尖端伸出套筒。通过制动螺钉固定滑动调节器,并因此使弹簧张力保持恒定。由此可向笔加载不同的力。不同弹簧力的三个压缩弹簧覆盖0-20 N的硬度范围。确定在薄膜上造成可见刮刻线的载荷。
化学耐受性
涂层表面对试验物质的耐受性: 检查固化漆薄膜对试验物质的抵抗能力(DIN ENISO 4628-1至-5:2016-07)。漆薄膜通常位于玻璃板上。将小棉球用试验物质浸透并置于漆表面上。通过例如借助表面玻璃或试管覆盖,避免试验物质蒸发。棉球或纤维素不变干。在预先规定的载荷时间后,移除用试验物质浸透的棉球,将载荷点干透并立即评估以抢在漆表面的再生以前。目视和通过用手触摸来检查试验面的变化。然后评估在试验面上是否已发生变化和发生何种变化。
评估漆表面的软化或变色。
0 = 没有检测到变化
1 = 仅可见变化
2 = 轻微软化/轻微色调变化
3 = 明显软化/中等色调变化
4 = 显著软化/显著色调变化
5 = 涂层在没有外界作用的情况下完全破坏/非常显著的色调变化。
表面的防涂鸦性质
评估固化漆薄膜对涂鸦和相应洗涤剂的抵抗能力。将来自喷漆罐的漆(RAL 4005丁香兰(Blaulila)、RAL 6001翠绿、RAL 9005黑)、Edding 3000永久性记号笔红和HS-DOT 4制动液施加到经上漆的表面,并使其在50℃下干燥48小时。在冷却后,在其上刷涂AGS 221涂鸦清除表面活性剂并在5分钟作用时间后除去。该循环重复最多10次并视觉评估变化,其中分级如下:
0 = 没有检测到变化
1 = 仅可见变化
2 = 轻微软化/轻微色调变化
3 = 明显软化/中等色调变化
4 = 显著软化/显著色调变化
5 = 涂层在没有外界作用的情况下完全破坏/非常显著的色调变化
样品0:基于脂族多异氰酸酯Desmodur N 3300(97重量%)和催化剂(3重量%)的清漆。催化剂混合物含有0.177克乙酸钾、0.475克18-冠醚-6和3.115克二乙二醇。这一催化剂混合物用于所有本发明的实施例。
实施例1.1: 摆撞硬度
漆配制剂:
样品1.1:基于以1.5的当量比与脂族多异氰酸酯Desmodur N 3300交联的氨基官能树脂Desmophen NH 1450和Desmophen NH 1520 (1:1)的清漆
样品1.2:基于以1.5的当量比与脂族多异氰酸酯 Desmodur N 3800交联的氨基官能树脂Desmophen NH 1450和Desmophen NH 1520 (1:1)的清漆
施加:
借助施涂刮刀将漆施涂到各种基底上。在特定固化时间和温度后,测量摆撞硬度以及化学和机械薄膜性质。
样品0:
用螺旋刮刀在玻璃板、Q-Panel钢和铝上施加80 µm湿漆;在180℃下固化30分钟和在RT下固化7天
样品1.1和1.2:
用螺旋刮刀在玻璃板、Q-Panel钢和铝上施加80 µm湿漆;在RT下固化7天。
表1: 各种漆配制剂的比较
实施例1.2: 在室温下固化
借助施涂刮刀将来自实施例1的样品0施涂到玻璃板上。在特定固化时间和固化条件后,测定摆撞硬度。
表2: 取决于干燥温度的涂料性质
各种干燥条件后的漆性质50 µm,在玻璃上 | 15 min. 150℃ | RT | |
1天后的摆撞硬度(König) | 195 s | 发粘 | |
7天后的摆撞硬度(König) | 205 s | 210 s |
实施例1.3: 化学耐受性
该应用实验比较本发明的涂层与对于高耐受性而推荐的双组分聚氨酯体系。
漆:
样品3.1:基于以1.5的当量比与亲水化多异氰酸酯Bayhydur 304交联的丙烯酸酯多元醇Bayhydrol A 2695的双组分水基聚氨酯清漆
样品3.2:基于以1.5的当量比与亲水化多异氰酸酯Bayhydur 3100交联的丙烯酸酯多元醇Bayhydrol A 2695的双组分水基聚氨酯清漆。
施加:
样品0: 通过螺旋刮刀将50 µm湿漆施加到Makrofol上;在180℃下固化15分钟;
样品3.1 & 3.2: 通过螺旋刮刀将70 µm湿漆施加到Makrofol上;在60℃下固化30分钟和在60℃下固化960分钟
样品0甚至在10个循环后也没有在薄膜中表现出缺陷。
表3: 涂料的化学耐受性
实施例2: 测定月桂酸二丁基锡对涂层性质的影响的对比实验
标准温度为23℃。所有实验在标准气候(NK)、23℃和50%相对湿度下进行。
Desmodur© BL 3175 SN、 Desmodur© BL 4265 SN、Desmodur© BL 3272 MPA、Desmodur© BL 2078/2 SN、Desmodur PL 340 BA/SN和Desmodur© PL 350 MPA/SN是可商购自Covestro AG的材料。它们在下文中缩写为BL 3175、BL 4265、BL 3272 MPA、BL 2078/2SN、PL 340 BA/SN和PL 350 MPA/SN。
除非另行提到,此处所用的化学品源自Sigma-Aldrich。商品源自适当的公司。
实验中所用的量和数量比基于固含量或固体比。
催化剂组合物的制备
通过在室温下将1.8克18-冠醚-6和1.2克辛酸钾相继溶解在57克乙酸甲氧基丙酯中,制备催化剂1。该催化剂不经进一步提纯使用。
可以通过加入合适的催化剂降低封闭的多异氰酸酯的解封闭温度。加速的解封闭不可避免地能使多异氰酸酯更快交联。表4中概括催化解封闭的研究结果:在实施例1存在下加入DBTL没有导致更快交联,但降低薄膜硬度。加入0.1重量% DBTL已经如此,加入1.0重量% DBTL更加明显。
表4: DBTL作为助催化剂对聚异氰脲酸酯涂料组合物的固化和交联的影响。样品
温度为220℃,10分钟;烘箱温度250℃
编号 | 样品 | 比率(BL 3175:BL 4265) | 催化剂 | 量(重量%) | König摆杆阻尼(s) |
1 | BL 3175 SN / BL4265 SN | 10:0 | 催化剂1 | 0.1 | 174 |
2 | BL 3175 SN / BL4265 SN | 9:1 | 催化剂1 | 0.1 | 159 |
3 | BL 3175 SN / BL4265 SN | 8:2 | 催化剂1 | 0.1 | 173 |
4 | BL 3175 SN / BL4265 SN | 5:5 | 催化剂1 | 0.1 | 181 |
5 | BL 3175 SN / BL4265 SN | 2:8 | 催化剂1 | 0.1 | 191 |
6 | BL 3175 SN / BL4265 SN | 10:0 | 催化剂1 /DBTL | 0.1 /0.1 | 159 |
7 | BL 3175 SN / BL4265 SN | 9:1 | 催化剂1 /DBTL | 0.1 /0.1 | 162 |
8 | BL 3175 SN / BL4265 SN | 8:2 | 催化剂1 /DBTL | 0.1 /0.1 | 140 |
9 | BL 3175 SN / BL4265 SN | 5:5 | 催化剂1 /DBTL | 0.1 /0.1 | 168 |
10 | BL 3175 SN / BL4265 SN | 2:8 | 催化剂1 /DBTL | 0.1 /0.1 | 173 |
11 | BL 3175 SN / BL4265 SN | 10:0 | 催化剂1 /DBTL | 0.1 /1 | 87 |
12 | BL 3175 SN / BL4265 SN | 9:1 | 催化剂1/DBTL | 0.1 /1 | 135 |
13 | BL 3175 SN / BL4265 SN | 8:2 | 催化剂1/DBTL | 0.1 /1 | 95 |
14 | BL 3175 SN / BL4265 SN | 5:5 | 催化剂1/DBTL | 0.1 /1 | 118 |
15 | BL 3175 SN / BL4265 SN | 2:8 | 催化剂1 /DBTL | 0.1 /1 | 164 |
Claims (13)
1.制造具有大硬度和高机械和/或化学耐受性的表面涂层的方法,其包括方法步骤
a) 提供多异氰酸酯组合物A),其中异氰酸酯含量为至少15重量%;
b) 将所述多异氰酸酯组合物A)施加到表面上;和
c) 在催化剂B)存在下催化交联所述多异氰酸酯组合物A),
条件是由所述多异氰酸酯组合物A)和所述至少一种催化剂B)形成的反应混合物含有最多0.2重量%的有机和无机铁化合物、铅化合物、锡化合物、铋化合物和锌化合物,且
在方法步骤c)开始时反应混合物中的对异氰酸酯呈反应性的基团与异氰酸酯基团的摩尔比为最多0.3:1。
2.如权利要求1中所述的方法,其中所述催化交联在10℃至35℃的温度下实施。
3.如权利要求1中所述的方法,其中所述催化剂是与冠醚组合的弱脂族或脂环族羧酸的金属盐。
4.如权利要求1中所述的方法,其中所述催化剂是与冠醚组合的弱脂族或脂环族羧酸的金属盐且所述催化交联在10℃至35℃的温度下实施。
5.如权利要求1至4任一项中所述的方法,其中制成的表面涂层具有至少80秒的König摆撞硬度。
6.如权利要求1至4任一项中所述的方法,其中制成的表面涂层具有至少100秒的König摆撞硬度。
7.如权利要求1至4任一项中所述的方法,其中所述涂层对选自乙醇、墨水、氢氧化钠溶液和HS DOT 4的至少一种试剂特别耐受。
8.如权利要求1至4任一项中所述的方法,其中在方法步骤c)中的催化交联过程中,多异氰酸酯组合物A)中的异氰脲酸酯基团的量与方法步骤a)中存在的量相比增加至少10%。
9.如权利要求1至4任一项中所述的方法,其中由所述多异氰酸酯组合物A)和所述至少一种催化剂B)形成的反应混合物含有最多0.1重量%的有机和无机铁化合物、铅化合物、锡化合物、铋化合物和锌化合物。
10.可通过如权利要求1至9任一项中所述的方法获得的表面涂层。
11.被如权利要求10中所述的表面涂层涂覆的表面。
12.如权利要求11中所述的表面,其中所述表面选自矿物质、金属、硬质塑料、软质塑料、纺织品、皮革、木材、木材衍生物和纸。
13.含有低聚多异氰酸酯并且贫单体多异氰酸酯的多异氰酸酯组合物A)在反应混合物中最多0.5重量%的有机和无机铁化合物、铅化合物、锡化合物、铋化合物和锌化合物存在下用于制造具有高机械和/或化学耐受性的表面涂层的用途,其中在所述多异氰酸酯组合物A)的催化交联开始时反应混合物中的对异氰酸酯呈反应性的基团与异氰酸酯基团的摩尔比为最多0.3:1。
Applications Claiming Priority (7)
Application Number | Priority Date | Filing Date | Title |
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EP16194348.5 | 2016-10-18 | ||
EP16194353 | 2016-10-18 | ||
EP16194353.5 | 2016-10-18 | ||
EP16194348 | 2016-10-18 | ||
EP16205635 | 2016-12-21 | ||
EP16205635.2 | 2016-12-21 | ||
PCT/EP2017/076604 WO2018073303A1 (de) | 2016-10-18 | 2017-10-18 | Harte beschichtungen mit hoher chemischer und mechanischer beständigkeit |
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EP (1) | EP3529326B1 (zh) |
CN (1) | CN110062794B (zh) |
ES (1) | ES2823248T3 (zh) |
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WO2020156937A1 (de) | 2019-01-29 | 2020-08-06 | Covestro Intellectual Property Gmbh & Co. Kg | Isocyanatterminierte präpolymere für textilbeschichtungen |
US11453739B2 (en) | 2020-06-16 | 2022-09-27 | Covestro Llc | Use of thermally decomposable acid as inhibitor for preparing polyisocyanurate composites |
KR20230033654A (ko) | 2020-07-02 | 2023-03-08 | 코베스트로 도이칠란트 아게 | 폴리이소시아누레이트 코팅 (rim)으로부터의 코팅물 및 사출 성형 공정에서의 그의 용도 |
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- 2017-10-18 CN CN201780078320.0A patent/CN110062794B/zh active Active
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- 2017-10-18 US US16/348,353 patent/US20200332147A1/en not_active Abandoned
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Also Published As
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US20200332147A1 (en) | 2020-10-22 |
CN110062794A (zh) | 2019-07-26 |
WO2018073303A1 (de) | 2018-04-26 |
EP3529326B1 (de) | 2020-09-23 |
ES2823248T3 (es) | 2021-05-06 |
EP3529326A1 (de) | 2019-08-28 |
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