CN104231228A - 一种可uv固化水性含氟聚氨酯树脂及其制备方法 - Google Patents
一种可uv固化水性含氟聚氨酯树脂及其制备方法 Download PDFInfo
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- CN104231228A CN104231228A CN201410397980.3A CN201410397980A CN104231228A CN 104231228 A CN104231228 A CN 104231228A CN 201410397980 A CN201410397980 A CN 201410397980A CN 104231228 A CN104231228 A CN 104231228A
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- Prior art keywords
- fluorine
- polyurethane resin
- glycol
- curable aqueous
- containing polyurethane
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- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 title claims abstract description 68
- 239000011737 fluorine Substances 0.000 title claims abstract description 68
- 229910052731 fluorine Inorganic materials 0.000 title claims abstract description 68
- 238000002360 preparation method Methods 0.000 title claims abstract description 32
- 229920005749 polyurethane resin Polymers 0.000 title abstract 10
- 239000000839 emulsion Substances 0.000 claims abstract description 23
- 238000000576 coating method Methods 0.000 claims abstract description 20
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 18
- 239000011248 coating agent Substances 0.000 claims abstract description 14
- 239000006185 dispersion Substances 0.000 claims abstract description 13
- 239000003153 chemical reaction reagent Substances 0.000 claims abstract description 12
- 239000004970 Chain extender Substances 0.000 claims abstract description 11
- 229920000570 polyether Polymers 0.000 claims abstract description 11
- 239000004721 Polyphenylene oxide Substances 0.000 claims abstract description 10
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims abstract description 6
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical class OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 claims description 98
- ZMANZCXQSJIPKH-UHFFFAOYSA-N Triethylamine Chemical compound CCN(CC)CC ZMANZCXQSJIPKH-UHFFFAOYSA-N 0.000 claims description 47
- WYURNTSHIVDZCO-UHFFFAOYSA-N Tetrahydrofuran Chemical compound C1CCOC1 WYURNTSHIVDZCO-UHFFFAOYSA-N 0.000 claims description 40
- 229920002803 thermoplastic polyurethane Polymers 0.000 claims description 38
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 36
- 238000006243 chemical reaction Methods 0.000 claims description 34
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 claims description 29
- -1 carboxylic acid fluoride Chemical class 0.000 claims description 27
- JOYRKODLDBILNP-UHFFFAOYSA-N Ethyl urethane Chemical compound CCOC(N)=O JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 claims description 20
- YLQBMQCUIZJEEH-UHFFFAOYSA-N tetrahydrofuran Natural products C=1C=COC=1 YLQBMQCUIZJEEH-UHFFFAOYSA-N 0.000 claims description 20
- 229910052757 nitrogen Inorganic materials 0.000 claims description 18
- FYSNRJHAOHDILO-UHFFFAOYSA-N thionyl chloride Chemical compound ClS(Cl)=O FYSNRJHAOHDILO-UHFFFAOYSA-N 0.000 claims description 14
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 claims description 12
- 239000008367 deionised water Substances 0.000 claims description 12
- 229910021641 deionized water Inorganic materials 0.000 claims description 12
- 150000002148 esters Chemical class 0.000 claims description 12
- 239000003795 chemical substances by application Substances 0.000 claims description 11
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 claims description 10
- NIXOWILDQLNWCW-UHFFFAOYSA-N 2-Propenoic acid Natural products OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims description 10
- 229920000728 polyester Polymers 0.000 claims description 10
- 229920001228 polyisocyanate Polymers 0.000 claims description 10
- 239000005056 polyisocyanate Substances 0.000 claims description 10
- 238000009413 insulation Methods 0.000 claims description 9
- 230000003472 neutralizing effect Effects 0.000 claims description 9
- 150000001263 acyl chlorides Chemical class 0.000 claims description 8
- 239000000376 reactant Substances 0.000 claims description 7
- 238000003756 stirring Methods 0.000 claims description 7
- IJOOHPMOJXWVHK-UHFFFAOYSA-N chlorotrimethylsilane Chemical compound C[Si](C)(C)Cl IJOOHPMOJXWVHK-UHFFFAOYSA-N 0.000 claims description 6
- 239000012141 concentrate Substances 0.000 claims description 6
- 229910052708 sodium Inorganic materials 0.000 claims description 6
- 239000011734 sodium Substances 0.000 claims description 6
- 125000004432 carbon atom Chemical group C* 0.000 claims description 5
- DCFKHNIGBAHNSS-UHFFFAOYSA-N chloro(triethyl)silane Chemical compound CC[Si](Cl)(CC)CC DCFKHNIGBAHNSS-UHFFFAOYSA-N 0.000 claims description 5
- 239000000178 monomer Substances 0.000 claims description 5
- 239000012299 nitrogen atmosphere Substances 0.000 claims description 5
- 125000002924 primary amino group Chemical group [H]N([H])* 0.000 claims description 5
- 239000003223 protective agent Substances 0.000 claims description 5
- PTBDIHRZYDMNKB-UHFFFAOYSA-N 2,2-Bis(hydroxymethyl)propionic acid Chemical compound OCC(C)(CO)C(O)=O PTBDIHRZYDMNKB-UHFFFAOYSA-N 0.000 claims description 4
- KJJPLEZQSCZCKE-UHFFFAOYSA-N 2-aminopropane-1,3-diol Chemical compound OCC(N)CO KJJPLEZQSCZCKE-UHFFFAOYSA-N 0.000 claims description 4
- OIFBSDVPJOWBCH-UHFFFAOYSA-N Diethyl carbonate Chemical compound CCOC(=O)OCC OIFBSDVPJOWBCH-UHFFFAOYSA-N 0.000 claims description 4
- 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 claims description 4
- HVVWZTWDBSEWIH-UHFFFAOYSA-N [2-(hydroxymethyl)-3-prop-2-enoyloxy-2-(prop-2-enoyloxymethyl)propyl] prop-2-enoate Chemical compound C=CC(=O)OCC(CO)(COC(=O)C=C)COC(=O)C=C HVVWZTWDBSEWIH-UHFFFAOYSA-N 0.000 claims description 4
- 239000012467 final product Substances 0.000 claims 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 claims description 4
- CRVGTESFCCXCTH-UHFFFAOYSA-N methyl diethanolamine Chemical compound OCCN(C)CCO CRVGTESFCCXCTH-UHFFFAOYSA-N 0.000 claims description 4
- 125000005010 perfluoroalkyl group Chemical group 0.000 claims description 4
- 229920001451 polypropylene glycol Polymers 0.000 claims description 4
- BDHFUVZGWQCTTF-UHFFFAOYSA-M sulfonate Chemical compound [O-]S(=O)=O BDHFUVZGWQCTTF-UHFFFAOYSA-M 0.000 claims description 4
- 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 4
- OMIGHNLMNHATMP-UHFFFAOYSA-N 2-hydroxyethyl prop-2-enoate Chemical compound OCCOC(=O)C=C OMIGHNLMNHATMP-UHFFFAOYSA-N 0.000 claims description 3
- 239000005057 Hexamethylene diisocyanate Substances 0.000 claims description 3
- 239000005058 Isophorone diisocyanate Substances 0.000 claims description 3
- UKLDJPRMSDWDSL-UHFFFAOYSA-L [dibutyl(dodecanoyloxy)stannyl] dodecanoate Chemical group CCCCCCCCCCCC(=O)O[Sn](CCCC)(CCCC)OC(=O)CCCCCCCCCCC UKLDJPRMSDWDSL-UHFFFAOYSA-L 0.000 claims description 3
- RTZKZFJDLAIYFH-UHFFFAOYSA-N ether Substances CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 claims description 3
- RRAMGCGOFNQTLD-UHFFFAOYSA-N hexamethylene diisocyanate Chemical compound O=C=NCCCCCCN=C=O RRAMGCGOFNQTLD-UHFFFAOYSA-N 0.000 claims description 3
- VLCAYQIMSMPEBW-UHFFFAOYSA-N methyl 3-hydroxy-2-methylidenebutanoate Chemical compound COC(=O)C(=C)C(C)O VLCAYQIMSMPEBW-UHFFFAOYSA-N 0.000 claims description 3
- BCNZYOJHNLTNEZ-UHFFFAOYSA-N tert-butyldimethylsilyl chloride Chemical compound CC(C)(C)[Si](C)(C)Cl BCNZYOJHNLTNEZ-UHFFFAOYSA-N 0.000 claims description 3
- ZMARGGQEAJXRFP-UHFFFAOYSA-N 1-hydroxypropan-2-yl 2-methylprop-2-enoate Chemical compound OCC(C)OC(=O)C(C)=C ZMARGGQEAJXRFP-UHFFFAOYSA-N 0.000 claims description 2
- KKTUQAYCCLMNOA-UHFFFAOYSA-N 2,3-diaminobenzoic acid Chemical compound NC1=CC=CC(C(O)=O)=C1N KKTUQAYCCLMNOA-UHFFFAOYSA-N 0.000 claims description 2
- ZSBCZEFDYNLRQQ-UHFFFAOYSA-N 2,4-diaminobenzenesulfonic acid;sodium Chemical compound [Na].NC1=CC=C(S(O)(=O)=O)C(N)=C1 ZSBCZEFDYNLRQQ-UHFFFAOYSA-N 0.000 claims description 2
- MMEDJBFVJUFIDD-UHFFFAOYSA-N 2-[2-(carboxymethyl)phenyl]acetic acid Chemical compound OC(=O)CC1=CC=CC=C1CC(O)=O MMEDJBFVJUFIDD-UHFFFAOYSA-N 0.000 claims description 2
- OGFZJRIBYKSVTN-UHFFFAOYSA-N 2-amino-2-methylpentane-1,3-diol Chemical compound CCC(O)C(C)(N)CO OGFZJRIBYKSVTN-UHFFFAOYSA-N 0.000 claims description 2
- 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 2
- 229920003171 Poly (ethylene oxide) Polymers 0.000 claims description 2
- BLRPTPMANUNPDV-UHFFFAOYSA-N Silane Chemical compound [SiH4] BLRPTPMANUNPDV-UHFFFAOYSA-N 0.000 claims description 2
- NSOXQYCFHDMMGV-UHFFFAOYSA-N Tetrakis(2-hydroxypropyl)ethylenediamine Chemical compound CC(O)CN(CC(C)O)CCN(CC(C)O)CC(C)O NSOXQYCFHDMMGV-UHFFFAOYSA-N 0.000 claims description 2
- GSEJCLTVZPLZKY-UHFFFAOYSA-N Triethanolamine Chemical compound OCCN(CCO)CCO GSEJCLTVZPLZKY-UHFFFAOYSA-N 0.000 claims description 2
- 125000000217 alkyl group Chemical group 0.000 claims description 2
- 125000003368 amide group Chemical group 0.000 claims description 2
- 235000011114 ammonium hydroxide Nutrition 0.000 claims description 2
- 238000004140 cleaning Methods 0.000 claims description 2
- 238000001035 drying Methods 0.000 claims description 2
- 238000001704 evaporation Methods 0.000 claims description 2
- 230000008020 evaporation Effects 0.000 claims description 2
- 238000001914 filtration Methods 0.000 claims description 2
- 125000004435 hydrogen atom Chemical group [H]* 0.000 claims description 2
- VQPKAMAVKYTPLB-UHFFFAOYSA-N lead;octanoic acid Chemical compound [Pb].CCCCCCCC(O)=O VQPKAMAVKYTPLB-UHFFFAOYSA-N 0.000 claims description 2
- 238000004513 sizing Methods 0.000 claims description 2
- MHYGQXWCZAYSLJ-UHFFFAOYSA-N tert-butyl-chloro-diphenylsilane Chemical compound C=1C=CC=CC=1[Si](Cl)(C(C)(C)C)C1=CC=CC=C1 MHYGQXWCZAYSLJ-UHFFFAOYSA-N 0.000 claims description 2
- RUELTTOHQODFPA-UHFFFAOYSA-N toluene 2,6-diisocyanate Chemical compound CC1=C(N=C=O)C=CC=C1N=C=O RUELTTOHQODFPA-UHFFFAOYSA-N 0.000 claims description 2
- 239000013638 trimer Substances 0.000 claims description 2
- 239000005051 trimethylchlorosilane Substances 0.000 claims description 2
- 229960004418 trolamine Drugs 0.000 claims description 2
- 238000000034 method Methods 0.000 abstract description 7
- 238000001723 curing Methods 0.000 abstract description 5
- 239000002994 raw material Substances 0.000 abstract description 4
- 229920005989 resin Polymers 0.000 abstract description 4
- 239000011347 resin Substances 0.000 abstract description 4
- NIXOWILDQLNWCW-UHFFFAOYSA-M Acrylate Chemical compound [O-]C(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-M 0.000 abstract description 3
- 238000006116 polymerization reaction Methods 0.000 abstract description 3
- 239000000853 adhesive Substances 0.000 abstract description 2
- 230000001070 adhesive effect Effects 0.000 abstract description 2
- 238000006482 condensation reaction Methods 0.000 abstract description 2
- 229920005862 polyol Polymers 0.000 abstract description 2
- 150000003077 polyols Chemical class 0.000 abstract description 2
- 239000007787 solid Substances 0.000 abstract description 2
- 238000003848 UV Light-Curing Methods 0.000 abstract 1
- 239000003054 catalyst Substances 0.000 abstract 1
- 239000000155 melt Substances 0.000 abstract 1
- 229920005906 polyester polyol Polymers 0.000 abstract 1
- 230000002194 synthesizing effect Effects 0.000 abstract 1
- 230000007613 environmental effect Effects 0.000 description 5
- 239000000706 filtrate Substances 0.000 description 5
- NBVXSUQYWXRMNV-UHFFFAOYSA-N fluoromethane Chemical compound FC NBVXSUQYWXRMNV-UHFFFAOYSA-N 0.000 description 5
- 239000000047 product Substances 0.000 description 5
- 125000006239 protecting group Chemical group 0.000 description 5
- 238000002390 rotary evaporation Methods 0.000 description 5
- BFKJFAAPBSQJPD-UHFFFAOYSA-N tetrafluoroethene Chemical group FC(F)=C(F)F BFKJFAAPBSQJPD-UHFFFAOYSA-N 0.000 description 5
- 238000001291 vacuum drying Methods 0.000 description 5
- GJKGAPPUXSSCFI-UHFFFAOYSA-N 2-Hydroxy-4'-(2-hydroxyethoxy)-2-methylpropiophenone Chemical compound CC(C)(O)C(=O)C1=CC=C(OCCO)C=C1 GJKGAPPUXSSCFI-UHFFFAOYSA-N 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 4
- 238000010792 warming Methods 0.000 description 4
- BQCIDUSAKPWEOX-UHFFFAOYSA-N 1,1-Difluoroethene Chemical compound FC(F)=C BQCIDUSAKPWEOX-UHFFFAOYSA-N 0.000 description 3
- 230000002209 hydrophobic effect Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000007711 solidification Methods 0.000 description 3
- 230000008023 solidification Effects 0.000 description 3
- 239000002904 solvent Substances 0.000 description 3
- 238000003786 synthesis reaction Methods 0.000 description 3
- RIWRBSMFKVOJMN-UHFFFAOYSA-N 2-methyl-1-phenylpropan-2-ol Chemical compound CC(C)(O)CC1=CC=CC=C1 RIWRBSMFKVOJMN-UHFFFAOYSA-N 0.000 description 2
- DXAOXPFFQPRUGW-UHFFFAOYSA-N FC(C(C(C(C(F)(F)F)(F)F)(F)F)(F)F)(C(C(C(F)(F)F)(F)F)(F)F)F.Cl Chemical compound FC(C(C(C(C(F)(F)F)(F)F)(F)F)(F)F)(C(C(C(F)(F)F)(F)F)(F)F)F.Cl DXAOXPFFQPRUGW-UHFFFAOYSA-N 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 2
- DTQVDTLACAAQTR-UHFFFAOYSA-N Trifluoroacetic acid Chemical compound OC(=O)C(F)(F)F DTQVDTLACAAQTR-UHFFFAOYSA-N 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- 238000012512 characterization method Methods 0.000 description 2
- 125000001153 fluoro group Chemical group F* 0.000 description 2
- 125000003709 fluoroalkyl group Chemical group 0.000 description 2
- 229920002313 fluoropolymer Polymers 0.000 description 2
- 239000004811 fluoropolymer Substances 0.000 description 2
- FUZZWVXGSFPDMH-UHFFFAOYSA-N hexanoic acid Chemical compound CCCCCC(O)=O FUZZWVXGSFPDMH-UHFFFAOYSA-N 0.000 description 2
- YWGHUJQYGPDNKT-UHFFFAOYSA-N hexanoyl chloride Chemical compound CCCCCC(Cl)=O YWGHUJQYGPDNKT-UHFFFAOYSA-N 0.000 description 2
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 2
- 238000000016 photochemical curing Methods 0.000 description 2
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 2
- 239000004810 polytetrafluoroethylene Substances 0.000 description 2
- 229920002635 polyurethane Polymers 0.000 description 2
- 239000004814 polyurethane Substances 0.000 description 2
- 239000011527 polyurethane coating Substances 0.000 description 2
- 229920002981 polyvinylidene fluoride Polymers 0.000 description 2
- 230000002940 repellent Effects 0.000 description 2
- 239000005871 repellent Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- PNQBEPDZQUOCNY-UHFFFAOYSA-N trifluoroacetyl chloride Chemical compound FC(F)(F)C(Cl)=O PNQBEPDZQUOCNY-UHFFFAOYSA-N 0.000 description 2
- UXFQFBNBSPQBJW-UHFFFAOYSA-N 2-amino-2-methylpropane-1,3-diol Chemical compound OCC(N)(C)CO UXFQFBNBSPQBJW-UHFFFAOYSA-N 0.000 description 1
- 101150035093 AMPD gene Proteins 0.000 description 1
- 239000004925 Acrylic resin Substances 0.000 description 1
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 1
- 239000005977 Ethylene Substances 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- CSCPPACGZOOCGX-UHFFFAOYSA-N acetone Substances CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 1
- 150000007513 acids Chemical class 0.000 description 1
- 150000001252 acrylic acid derivatives Chemical class 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 150000001412 amines Chemical class 0.000 description 1
- 230000003373 anti-fouling effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 150000001768 cations Chemical class 0.000 description 1
- 229920001577 copolymer Polymers 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 150000002009 diols Chemical class 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- UHESRSKEBRADOO-UHFFFAOYSA-N ethyl carbamate;prop-2-enoic acid Chemical compound OC(=O)C=C.CCOC(N)=O UHESRSKEBRADOO-UHFFFAOYSA-N 0.000 description 1
- 229920000840 ethylene tetrafluoroethylene copolymer Polymers 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 208000006278 hypochromic anemia Diseases 0.000 description 1
- 239000005457 ice water Substances 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 239000012948 isocyanate Substances 0.000 description 1
- 150000002513 isocyanates Chemical class 0.000 description 1
- 238000013508 migration Methods 0.000 description 1
- 230000005012 migration Effects 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- NTQYXUJLILNTFH-UHFFFAOYSA-N nonanoyl chloride Chemical compound CCCCCCCCC(Cl)=O NTQYXUJLILNTFH-UHFFFAOYSA-N 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- 125000005474 octanoate group Chemical group 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- UZUFPBIDKMEQEQ-UHFFFAOYSA-N perfluorononanoic acid Chemical compound OC(=O)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)F UZUFPBIDKMEQEQ-UHFFFAOYSA-N 0.000 description 1
- SNGREZUHAYWORS-UHFFFAOYSA-N perfluorooctanoic acid Chemical compound OC(=O)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)F SNGREZUHAYWORS-UHFFFAOYSA-N 0.000 description 1
- 238000006068 polycondensation reaction Methods 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- SUKJFIGYRHOWBL-UHFFFAOYSA-N sodium hypochlorite Chemical compound [Na+].Cl[O-] SUKJFIGYRHOWBL-UHFFFAOYSA-N 0.000 description 1
- 239000012265 solid product Substances 0.000 description 1
- DVKJHBMWWAPEIU-UHFFFAOYSA-N toluene 2,4-diisocyanate Chemical compound CC1=CC=C(N=C=O)C=C1N=C=O DVKJHBMWWAPEIU-UHFFFAOYSA-N 0.000 description 1
- 229920002554 vinyl polymer Polymers 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C51/00—Preparation of carboxylic acids or their salts, halides or anhydrides
- C07C51/58—Preparation of carboxylic acid halides
- C07C51/60—Preparation of carboxylic acid halides by conversion of carboxylic acids or their anhydrides or esters, lactones, salts into halides with the same carboxylic acid part
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C231/00—Preparation of carboxylic acid amides
- C07C231/12—Preparation of carboxylic acid amides by reactions not involving the formation of carboxamide groups
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07F—ACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAINING ELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN, SULFUR, SELENIUM OR TELLURIUM
- C07F7/00—Compounds containing elements of Groups 4 or 14 of the Periodic Table
- C07F7/02—Silicon compounds
- C07F7/08—Compounds having one or more C—Si linkages
- C07F7/18—Compounds having one or more C—Si linkages as well as one or more C—O—Si linkages
- C07F7/1804—Compounds having Si-O-C linkages
- C07F7/1872—Preparation; Treatments not provided for in C07F7/20
- C07F7/188—Preparation; Treatments not provided for in C07F7/20 by reactions involving the formation of Si-O linkages
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07F—ACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAINING ELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN, SULFUR, SELENIUM OR TELLURIUM
- C07F7/00—Compounds containing elements of Groups 4 or 14 of the Periodic Table
- C07F7/02—Silicon compounds
- C07F7/08—Compounds having one or more C—Si linkages
- C07F7/18—Compounds having one or more C—Si linkages as well as one or more C—O—Si linkages
- C07F7/1804—Compounds having Si-O-C linkages
- C07F7/1872—Preparation; Treatments not provided for in C07F7/20
- C07F7/1892—Preparation; Treatments not provided for in C07F7/20 by reactions not provided for in C07F7/1876 - C07F7/1888
-
- 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
- C08G18/0804—Manufacture of polymers containing ionic or ionogenic groups
- C08G18/0819—Manufacture of polymers containing ionic or ionogenic groups containing anionic or anionogenic groups
- C08G18/0823—Manufacture of polymers containing ionic or ionogenic groups containing anionic or anionogenic groups containing carboxylate salt groups or groups forming them
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Abstract
本发明涉及涂料技术领域,具体公开了一种可UV固化水性含氟聚氨酯树脂及其制备方法。本发明首先合成一种新型氟化二元醇,并采用熔融聚合的方法,以亲水扩链剂、聚酯多元醇或聚醚多元醇、丙烯酸酯类封端剂、催化剂、光引发剂、中和剂为原料,通过缩合反应两步合成UV固化水性含氟聚氨酯树脂。本发明所制备得到的UV固化水性含氟聚氨酯树脂其含氟量在1~15%之间,以水为分散系的乳液固含量可达30~65%,涂装工艺性好,固化迅速,气味小。其涂膜具有低表面能、耐摩擦、光泽度高、硬度大、附着力强、耐冲击性优异、热稳定性良好等优点,是一种能将UV固化、水基分散和含氟三个特点综合起来的环保高性能涂料树脂。
Description
技术领域
本发明涉及涂料技术领域,更具体地,涉及一种可UV固化水性含氟聚氨酯树脂及其制备方法。
背景技术
随着技术的不断革新,现代涂料逐渐形成集高性能、高效能、高环保以及高端装饰效果等多功能为一体的发展方向。现有技术中常用的合成氟碳树脂的氟烯烃类单体主要是含有2~4个碳原子的氟烯烃,如聚四氟乙烯(PTFE)、聚偏二氟乙烯(PVDF)、四氟乙烯(TFE)和六氟丙烯(HFP)、四氟乙烯和全氟烷氧基共聚物(PFA)、乙烯和四氟乙烯的共聚物(ETFE)、四氟乙烯及六氟丙烯和偏二氟乙烯(VDF)的共聚物(THV)等,这些单体虽然性能突出,但是其本身也具有不少缺点,如成本较高、对基材粘附力较差、熔融流动性差、溶解性能差、固化温度高等,从而限制了某些场合的应用,此外部分溶剂型氟碳涂料的 VOC较大,也与当今环保理念不符。因此,开发既具有氟碳涂料优异性能,又兼顾施工效率和环保理念的含氟涂料势在必行。
含氟聚合物具有优良的耐溶剂、耐热性、低表面自由能等性能,含氟聚合物在涂膜固化过程中,其产生的氟元素有从涂层内部向空气/涂层界面迁移并向表面富集的趋势。这种趋势使得氟碳涂料在较低的氟含量时也能使涂层达到较好的性能。因此将提供优异表面性能的含氟链段引入一般性的聚合物中,既能保留优异的表面性能,还能降低成本。而同时引入紫外光固化和亲水基团,则可以使其不仅具有光固化技术所具有的固化速度快、耗能低、可涂装基材种类多等优点,还具有水性体系的安全廉价、无毒、低(或无)VOC排放量等环保新特点。
含氟聚氨酯因可以对其进行分子结构设计,使该聚合物所形成的的涂膜不仅具有聚氨酯涂料的低成膜温度、高附着力、高耐磨、耐冲击等特点,而且具有含氟材料的疏水疏油、耐辐射老化等性能,并且同时还可以引入水性化和光固化基团,是一种极具前途的含氟树脂。
目前制备含氟聚氨酯树脂常用的含氟原料主要有:氟化异氰酸酯、含氟烷基乙烯基二醇类、含氟氧烷基二醇类、含氟酰卤类、(甲基)丙烯酸氟烷基酯类和氟化多元醇或胺类等。其中大部分原料或聚氨酯树脂的制备都比较复杂、成本较高,而目前使用较多的是氟烷基醇类和(甲基)丙烯酸氟烷基酯类。将氟烷基醇接入聚氨酯的方法很多:中国专利CN101435159A将氟烷基醇以封端剂的形式引入聚氨酯中,但这类含氟聚氨酯的氟含量较低,且氟化链段存在于主链末端,对树脂原本性能并没有提高;中国专利CN103360807A中虽然能将水分散和含氟量达到一个较好的平衡,但其中混有的有机溶剂不易除去。而中国专利CN101870756A将水性聚氨酯丙烯酸酯大分子单体、含氟丙烯酸酯和丙烯酸酯单体共混反应,合成一种紫外光固化的含氟聚氨酯丙烯酸酯树脂,但该方法难以控制体系中双键的含量,不能保证光固化的效率。
发明内容
本发明所要解决的技术问题是克服现有技术中含氟聚氨酯涂料合成技术的不足,提供一种新型的氟化二元醇。
本发明的另一个目的是提供所述氟化二元醇的制备方法。
本发明的第三个目的是提供一种可UV固化水性含氟聚氨酯树脂。所述聚氨酯树脂集可UV固化、水基分散和含氟三个特点,极具高环保性能和应用前景。
本发明的第四个目的是提供一种可UV固化水性含氟聚氨酯乳液,将乳液进行涂膜具有优异的疏水疏油、耐热耐老化等性能,是一种固化迅速、环保可靠的低表面能防污涂料。
本发明的第五个目的是提供所述聚氨酯树脂的制备方法。
本发明的第六个目的是提供所述聚氨酯乳液的制备方法。
本发明是通过以下技术方案予以实现上述目的:
一种氟化二元醇,所述氟化二元醇侧链含有对碱性环境比较稳定的酰胺基,所述氟化二元醇的结构为:
其中Rf为含氟基团,多为碳原子数为1~20 的全氟烷基;n为0~12的整数;X为1~2;R代表氢原子或烷基。
上述氟化二元醇的制备方法包括如下步骤:
S1. 按重量份数计,将1份含氟羧酸溶于四氢呋喃,在0℃和氮气保护下加入1.1~1.5倍的二氯亚砜和三乙胺,20~60℃反应4~10 h,得到含氟酰氯;
S2. 将1份氨基二元醇和2.1~2.5份三乙胺溶于四氢呋喃,在氮气保护下加入2.1~2.5份硅烷类羟基保护试剂,40~60℃下反应4~6 h;
S3. 将S1得到的含氟酰氯和1.1份三乙胺滴入S2所得到的反应物中,20~40℃反应4~6 h,过滤、清洗、分液、蒸发、浓缩后,60℃下干燥6~12 h,即得氟化二元醇。
优选地,上述氟化二元醇的制备方法包括如下步骤:
S1. 按重量份数计算,将1份含氟羧酸溶于干燥的四氢呋喃,在0℃和氮气保护下加入1.1~1.2倍的二氯亚砜和三乙胺,50~60℃反应4~5 h,得到含氟酰氯;
S2. 将1份氨基二元醇和2.1份三乙胺溶于干燥的四氢呋喃,在氮气保护下加入2.1~2.2份硅烷类羟基保护试剂,40~60℃下反应4~5 h;
S3. 将S1得到的含氟酰氯和1.1份三乙胺滴入S2所得到的反应物中,30~40℃反应4~6 h,过滤得滤液。用稀酸或稀碱洗去保护基,再用去离子水反复洗1~3次,分液后对油相旋蒸浓缩,60℃下真空干燥8~9 h,得白色或淡黄色固体产物,即氟化二元醇。
优选地,S1所述含氟羧酸的结构通式如下:
其中,Rf为碳原子数为1~20 的全氟烷基,n为0~12的整数。
优选地,S2所述氨基二元醇为2-氨基-1,3-丙二醇、2-甲基-2-氨基-1,3-丙二醇、2-氨基-2-甲基-1,3-戊二醇或3-甲基-3-氨基-1,3-戊二醇中。
优选地,S2所述硅烷类羟基保护剂为三甲基氯硅烷、三乙基氯硅烷、叔丁基二甲基氯硅烷或叔丁基二苯基氯硅烷。
一种可UV固化水性含氟聚氨酯树脂,其原料单体含有上述氟化二元醇,所述含氟聚氨酯树脂含有以下质量百分数的各组分:
多异氰酸酯 20~40%;
聚醚二醇或聚酯二醇 20~50%;
氟化二元醇 0.5~25%;
亲水扩链剂 1~8%;
丙烯酸酯类封端剂 5~25%;
中和剂 0~6%;
催化剂 0~0.1%。
由于聚氨酯树脂本身分子量较大,粘度高,若直接将全氟酰氯引入聚氨酯是很难控制其反应的位点和效率,而且溶剂和副产物的后处理十分麻烦,因此一般不采用直接引入全氟酰氯。本发明所合成的氟化二元醇正好避免了以上的难题。
优选的,所述多异氰酸酯为异佛尔酮二异氰酸酯、2,4-或2,6-甲苯二异氰酸酯、二苯基甲烷二异氰酸酯或六亚甲基二异氰酸酯三聚体。
优选的,所述聚醚二醇或聚酯二醇为聚乙二醇、聚己二酸己二醇酯二醇、聚丙二醇、聚四亚甲基醚二醇、聚已内酯二醇、聚(1,4-丁二醇碳酸酯)二醇、聚(1,6-己二醇碳酸酯)二醇。
优选的,所述催化剂为二月桂酸二丁基锡、辛酸亚锡、辛酸钴、辛酸铅或三乙醇胺。
优选的,所述亲水扩链剂为二羟甲基丙酸、N-甲基二乙醇胺、二氨基苯甲酸、乙二胺基乙(丙)基磺酸钠、2,4-二氨基苯磺酸钠、1,4-丁二醇-2-磺酸钠或1,2-二羟基-3-丙磺酸钠。
优选的,所述丙烯酸酯类封端剂为丙烯酸羟乙酯、甲基丙烯酸羟乙酯、甲基丙烯酸羟丙酯、三羟基丙烷二丙烯酸酯酯或季戊四醇三丙烯酸酯。
优选的,所述中和剂为三乙胺、氨水或乙酸;所述的光引发剂为水溶性光引发剂,包括Darocur 2959、Darocur 1173、UV-500等水性光引发剂。
上述可UV固化水性含氟聚氨酯树脂的制备方法,包括以下步骤:
S1. 将多异氰酸酯、聚醚二醇或聚酯二醇、催化剂在氮气气氛下维持60~80℃,反应0.5~1.5 h;
S2. 依次加入亲水扩链剂、氟化二元醇,在60~80℃下反应2~5 h;
S3. 将温度降到30~45℃,加入丙烯酸酯类封端剂,保温反应1~4 h,得UV固化水性含氟聚氨酯预聚物;
S4. 在S3所得预聚物中加入中和剂,于40~45℃下反应0.5~1h,即可得到可UV固化水性含氟聚氨酯树脂。
优选地,上述可UV固化水性含氟聚氨酯树脂的制备方法,包括以下步骤:
S1. 将多异氰酸酯、聚醚二醇或聚酯二醇、催化剂加入洁净的三口烧瓶中,在氮气气氛下维持70~80℃,反应0.5~1 h;
S2. 依次加入亲水扩链剂、氟化二元醇,在60~80℃下反应4~5 h;
S3. 将温度降到40~45℃,加入丙烯酸酯类封端剂,保温反应2~2.5h,得UV固化水性含氟聚氨酯预聚物;
S4. 在S3所得预聚物中加入中和剂,于40~45℃下反应0.5~1h,即可UV固化水性含氟聚氨酯树脂。
一种可UV固化水性含氟聚氨酯乳液,其特在在于,包括上述可UV固化水性含氟聚氨酯树脂和质量百分数为0.5~6%光引发剂。
上述可UV固化水性含氟聚氨酯乳液的制备方法,包括以下步骤:
S1. 将多异氰酸酯、聚醚二醇或聚酯二醇、催化剂在氮气气氛下维持60~80℃,反应0.5~1.5 h;
S2. 依次加入亲水扩链剂、氟化二元醇,在60~80℃下反应2~5 h;
S3. 将温度降到30~45℃,加入丙烯酸酯类封端剂,保温反应1~4 h,得UV固化水性含氟聚氨酯预聚物;
S4. 在S3所得预聚物中加入中和剂,于40~45℃下反应0.5~1h,即可得到可UV固化水性含氟聚氨酯树脂;
S5. 往S4制备得到的可UV固化水性含氟聚氨酯树脂中缓慢加入去离子水,高速分散0.5 h,最后加入光引发剂,搅拌均匀后即得。
优选的,上述可UV固化水性含氟聚氨酯乳液的制备方法,包括以下步骤:
S1. 将多异氰酸酯、聚醚二醇或聚酯二醇、催化剂加入洁净的三口烧瓶中,在氮气气氛下维持70~80℃,反应0.5~1 h;
S2. 依次加入亲水扩链剂、氟化二元醇,在60~80℃下反应4~5 h;
S3. 将温度降到40~45℃,加入丙烯酸酯类封端剂,保温反应2~2.5h,得UV固化水性含氟聚氨酯预聚物;
S4. 在S3所得预聚物中加入中和剂,于40~45℃下反应0.5~1h,即可UV固化水性含氟聚氨酯树脂;
S5. 往S4制备得到的可UV固化水性含氟聚氨酯树脂中缓慢加入去离子水,高速分散0.5 h,最后加入光引发剂,搅拌均匀后即得。
本发明还提供了一种可UV固化水性含氟聚氨酯涂料,所述涂料含有上述新型氟化二元醇,或含有上述可UV固化水性含氟聚氨酯树脂,或含有上述UV固化水性含氟聚氨酯乳液,所述涂料经自乳化水分散处理,制备成阴离子或阳离子型乳液,为绿色环保型产品。
本发明还提供了上述氟化二元醇或上述可UV固化水性含氟聚氨酯树脂或上述可UV固化水性含氟聚氨酯乳液在涂料或胶黏剂中的应用。
与现有技术相比,本发明具有以下有益效果:
本发明首先利用较为便宜的原料,以较为简便和较高产率合成一种新型的氟化二元醇,并将其与多异氰酸酯、聚醚或聚酯二元醇、亲水扩链剂、丙烯酸酯类封端剂进行缩聚,制备可UV固化水性含氟聚氨酯树脂,该方法工艺相对简单,成本相对较低。
本发明通过缩合反应两步合成UV固化水性含氟聚氨酯树脂,所制备得到的UV固化水性含氟聚氨酯树脂其含氟量在1~15%之间,以水为分散系的乳液固含量可达30~65%。
所制备得到的含氟聚氨树脂所配成的乳液不仅性能稳定,而且涂装工艺性好,固化迅速,气味小。其涂膜具有低表面能、耐摩擦、光泽度高、硬度大、附着力强、耐冲击性优异、 热稳定性良好等优点,是一种能将UV固化、水基分散和含氟三个特点综合起来的环保高性能涂料树脂。
附图说明
图1为可UV固化水性含氟聚氨酯树脂的制备流程图;
图2为氟化二元醇的红外光谱图。
具体实施方式
下面通过实施例对本发明进一步具体描述。下述所使用的实验方法若无特殊说明,均为本技术领域现有常规的方法,所使用的配料或材料,如无特殊说明,均为通过商业途径可得到的配料或材料。
实施例1
一种可UV固化水性含氟聚氨酯树脂的制备方法,整个制备流程如图1,具体包括以下步骤:
S1. 一种新型的氟化二元醇的制备:
S11. 按摩尔量计算,将1份全氟辛酸溶于3倍质量份的干燥四氢呋喃,在0℃和氮气保护下分别滴入1.1倍的二氯亚砜和三乙胺,缓慢升温至50℃反应4h,得到全氟辛酰氯,产率99.3%;
S12. 将1份2-甲基-2-氨基-1,3-丙二醇和2.1份三乙胺溶于3倍质量份的干燥四氢呋喃,在氮气保护下滴入2.1份三甲基氯硅烷,40℃下反应4h;
S13. 将全氟辛酰氯和1.1份三乙胺滴入S12所得到的反应物中,40℃反应4h,过滤得滤液。用稀盐酸洗去保护基,再用去离子水反复洗3次,分液后对油相进行旋转蒸发浓缩,60℃下真空干燥8h,得浅黄色产物,即氟化二元醇,其产率为92.1%。
S2. 将44.5 g异佛尔酮二异氰酸酯、41.6 g聚丙二醇(分子量1000)和1滴二月桂酸二丁基锡加入洁净的三口烧瓶中,在氮气保护下维持80℃,反应0.5h。
S3. 依次加入6.9 g二羟甲基丙酸和21g S1所得的氟化二元醇,在75℃下反应4h。
S4. 将温度降到45℃,加入17.1g甲基丙烯酸羟乙酯,保温反应2h,即得UV固化水性含氟聚氨酯预聚物。
S5. 在S4所得预聚物中加入5.2g三乙胺,于40℃下反应0.5h,再缓慢加入206g去离子水,高速分散0.5h,最后加入5.5g 2-羟基-4'-(2-羟乙氧基)-2-甲基苯丙酮(Darocur 2959),搅拌均匀后得到可UV固化含氟聚氨酯乳液。
实施例2
一种可UV固化水性含氟聚氨酯树脂的制备方法,整个制备流程如图1,包括以下步骤:
S1. 一种新型的氟化二元醇的制备:
S11. 按摩尔量计算,将1份全氟己酸溶于3.5倍质量份的干燥四氢呋喃,在0℃和氮气保护下分别滴入1.1倍的二氯亚砜和三乙胺,缓慢升温至50℃反应4h,得到全氟己酰氯,产率99.5%;
S12. 将1份2-氨基-2-甲基-1,3-丙二醇和2.1份三乙胺溶于3倍质量份的干燥四氢呋喃,在氮气保护下滴入2.1份三甲基氯硅烷,40℃下反应4h;
S13. 将全氟己酰氯和1.1份三乙胺滴入S12所得到的反应物中,40℃反应4h,过滤得滤液。用稀盐酸洗去保护基,再用去离子水反复洗3次,分液后对油相进行旋转蒸发浓缩,60℃下真空干燥9h,得白色粉状产物,即氟化二元醇(如图2),其产率91.7%。
S2. 将34.3g甲苯二异氰酸酯、55.5g聚丙二醇(分子量1000)和1滴辛酸亚锡加入洁净的三口烧瓶中,在氮气保护下维持80℃,反应0.5h。
S3. 依次加入6.9g二羟甲基丙酸和12.8g S1所制备得到的氟化二元醇,在70℃下反应4h。
S4. 将温度降到45℃,加入15.3g丙烯酸羟乙酯,保温反应2h,得UV固化水性含氟聚氨酯预聚物。
S5. S4所得到的预聚物中加入5.2g三乙胺,于40℃下反应0.5h,再缓慢加入190g去离子水,高速分散0.5h,最后加入5g 2-羟基-2-甲基-1-苯基-1-丙酮(Darocur 1173),搅拌均匀后得到可UV固化含氟聚氨酯乳液。
实施例3
一种可UV固化水性含氟聚氨酯树脂的制备方法,整个制备流程如图1,包括以下步骤:
S1. 一种新型的氟化二元醇的制备:
S11. 按摩尔量计算,将1份全氟壬酸溶于3.5倍质量份的干燥四氢呋喃,在0℃和氮气保护下分别滴入1.2倍的二氯亚砜和三乙胺,缓慢升温至50℃反应4h,得到十三氟庚酰氯,产率99.1%;
S12. 将1份2-氨基-1,3-丙二醇和2.1份三乙胺溶于3倍质量份的干燥四氢呋喃,在氮气保护下滴入2.1份三乙基氯硅烷,50℃下反应4h;
S13. 将全氟壬酰氯和1.1份三乙胺滴入S12所得到的反应物中,40℃反应4h,过滤得滤液。用稀碱液洗去保护基,再用去离子水反复洗3次,分液后对油相进行旋转蒸发浓缩,60℃下真空干燥8h,得淡黄色产物,即氟化二元醇,其产率90.2%。
S2. 将44.5g异佛尔酮二异氰酸酯、55.5g聚四亚甲基醚二醇(分子量2000)和2滴辛酸亚锡加入洁净的三口烧瓶中,在氮气保护下维持80℃,反应1h。
S3. 依次加入4.1g N-甲基二乙醇胺和33.0g S1中所制备得到的氟化二元醇,在65℃下反应5h。
S4. 将温度降到45℃,加入39.6g季戊四醇三丙烯酸酯,保温反应2.5h,得UV固化水性含氟聚氨酯预聚物。
S5. 在S4所制备得到的预聚物中加入2g乙酸,于40℃下反应0.5h,再缓慢加入241.5g去离子水,高速分散0.5h,最后加入6.8g Darocur 2959,搅拌均匀后得到可UV固化含氟聚氨酯乳液。
实施例4
一种可UV固化水性含氟聚氨酯树脂的制备方法,整个制备流程如图1,包括以下步骤:
S1. 一种新型的氟化二元醇的制备:
S11. 按摩尔量计算,将1份三氟乙酸溶于2.5倍质量份的干燥四氢呋喃,在0℃和氮气保护下分别滴入1.2倍的二氯亚砜和三乙胺,缓慢升温至50℃反应4h,得到三氟乙酰氯,产率99%;
S12. 将1份2-氨基-1,3-丙二醇和2.1份三乙胺溶于3倍质量份的干燥四氢呋喃,在氮气保护下滴入2.1份叔丁基二甲基氯硅烷,60℃下反应5h;
S13. 将三氟乙酰氯和1.1份三乙胺滴入S12所得到的反应物中,冰水浴条件下混合,逐步升至40℃反应5h,过滤得滤液。用热的稀碱液洗去保护基,再用去离子水反复洗3次,分液后对油相进行旋转蒸发浓缩,60℃下真空干燥8h,得淡黄色产物,即氟化二元醇,其产率87%。
S2. 将33.7g六亚甲基二异氰酸酯、83.3g聚己二酸己二醇酯二醇(分子量1500)和1滴辛酸亚锡加入洁净的三口烧瓶中,在氮气保护下维持80℃,反应1h。
S3. 依次加入4.1g N-甲基二乙醇胺和12.0g S1中所得的氟化二元醇,在65℃下反应5h。
S4. 将温度降到45℃,加入39.6g季戊四醇三丙烯酸酯,保温反应2.5h,得UV固化水性含氟聚氨酯预聚物。
S5. 在上述预聚物中加入2g乙酸,于40℃下反应0.5h,再缓慢加入241.5g去离子水,高速分散0.5h,最后加入6.4g 5.5g 2-羟基-4'-(2-羟乙氧基)-2-甲基苯丙酮(Darocur 2959),搅拌均匀后得到可UV固化含氟聚氨酯乳液。
实施例5
将实施例1~4所制备得到的可UV固化含氟聚氨酯乳液进行性能表征,表征结果如表1所示。
表1 实施例1~4所制备乳液及其涂膜的主要性能
从表1可以看出,实施例1~4所制备的乳液及其涂膜综合性能良好,除了具有出色的机械性能、良好的耐酸碱性耐水性以及较快的固化速度外,还有因为含氟二醇的引入而表现出有良好的疏水性能。
Claims (10)
1.一种氟化二元醇,其特征在于,所述氟化二元醇侧链含有酰胺基,所述氟化二元醇的结构为:
其中Rf为碳原子数为1~20 的全氟烷基;n为0~12的整数;X为1~2;R代表氢原子或烷基。
2. 权利要求1所述氟化二元醇的制备方法,其特征在于,包括如下步骤:
S1. 按重量份数计,将1份含氟羧酸溶于四氢呋喃,在0℃和氮气保护下加入1.1~1.5倍的二氯亚砜和三乙胺,20~60℃反应4~10 h,得到含氟酰氯;
S2. 将1份氨基二元醇和2.1~2.5份三乙胺溶于四氢呋喃,在氮气保护下加入2.1~2.5份硅烷类羟基保护试剂,40~60℃下反应4~6 h;
S3. 将S1得到的含氟酰氯和1.1份三乙胺滴入S2所得到的反应物中,20~40℃反应4~6 h,过滤、清洗、分液、蒸发、浓缩后,60℃下干燥6~12 h,即得氟化二元醇。
3. 根据权利要求2所述氟化二元醇的制备方法,其特征在于,S1所述含氟羧酸的结构通式如下:
其中,Rf为碳原子数为1~20 的全氟烷基,n为0~12的整数;
S2所述氨基二元醇为2-氨基-1,3-丙二醇、2-甲基-2-氨基-1,3-丙二醇、2-氨基-2-甲基-1,3-戊二醇或3-甲基-3-氨基-1,3-戊二醇;
S2所述硅烷类羟基保护剂为三甲基氯硅烷、三乙基氯硅烷、叔丁基二甲基氯硅烷或叔丁基二苯基氯硅烷。
4. 一种可UV固化水性含氟聚氨酯树脂,其特征在于,其原料单体含有权利要求1所述的氟化二元醇,所述含氟聚氨酯树脂含有以下质量百分数的各组分:
多异氰酸酯 20~40%;
聚醚二醇或聚酯二醇 20~50%;
氟化二元醇 0.5~25%;
亲水扩链剂 1~8%;
丙烯酸酯类封端剂 5~25%;
中和剂 0~6%;
催化剂 0~0.1%。
5. 根据权利要求4所述的可UV固化水性含氟聚氨酯树脂,其特征在于,所述多异氰酸酯为异佛尔酮二异氰酸酯、2,4-或2,6-甲苯二异氰酸酯、二苯基甲烷二异氰酸酯或六亚甲基二异氰酸酯三聚体;
所述的聚醚二醇或聚酯二醇为聚乙二醇、聚己二酸己二醇酯二醇、聚丙二醇、聚四亚甲基醚二醇、聚已内酯二醇、聚(1,4-丁二醇碳酸酯)二醇、聚(1,6-己二醇碳酸酯)二醇;
所述催化剂为二月桂酸二丁基锡、辛酸亚锡、辛酸钴、辛酸铅或三乙醇胺;
S2所述的亲水扩链剂为二羟甲基丙酸、N-甲基二乙醇胺、二氨基苯甲酸、乙二胺基乙(丙)基磺酸钠、2,4-二氨基苯磺酸钠、1,4-丁二醇-2-磺酸钠或1,2-二羟基-3-丙磺酸钠;
S3所述的丙烯酸酯类封端剂为丙烯酸羟乙酯、甲基丙烯酸羟乙酯、甲基丙烯酸羟丙酯、三羟基丙烷二丙烯酸酯酯或季戊四醇三丙烯酸酯;
S4所述中和剂为三乙胺、氨水或乙酸;所述的光引发剂为水溶性光引发剂。
6. 权利要求4所述可UV固化水性含氟聚氨酯树脂的制备方法,其特征在于,包括以下步骤:
S1. 将多异氰酸酯、聚醚二醇或聚酯二醇、催化剂在氮气气氛下维持60~80℃,反应0.5~1.5 h;
S2. 依次加入亲水扩链剂、氟化二元醇,在60~80℃下反应2~5 h;
S3. 将温度降到30~45℃,加入丙烯酸酯类封端剂,保温反应1~4 h,得UV固化水性含氟聚氨酯预聚物;
S4. 在S3所得预聚物中加入中和剂,于40~45℃下反应0.5~1h,即可得到可UV固化水性含氟聚氨酯树脂。
7. 一种可UV固化水性含氟聚氨酯乳液,其特在在于,包括权利要求4或5所述可UV固化水性含氟聚氨酯树脂和质量百分数为0.5~6%光引发剂。
8. 权利要求7所述可UV固化水性含氟聚氨酯乳液的制备方法,其特征在于,包括以下步骤:
向权利要求6所述S4制备得到的可UV固化水性含氟聚氨酯树脂中缓慢加入去离子水,高速分散0.5 h,最后加入光引发剂,搅拌均匀后即得。
9.权利要求4或5所述可UV固化水性含氟聚氨酯树脂或权利要求7所述可UV固化水性含氟聚氨酯乳液在制备涂料中的应用。
10.权利要求4或5所述可UV固化水性含氟聚氨酯树脂或权利要求7所述可UV固化水性含氟聚氨酯乳液在制备胶黏剂中的应用。
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