CN108587370B - Emulsion paint based on CdTe quantum dot modified nano anion sol - Google Patents
Emulsion paint based on CdTe quantum dot modified nano anion sol Download PDFInfo
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- CN108587370B CN108587370B CN201810375153.2A CN201810375153A CN108587370B CN 108587370 B CN108587370 B CN 108587370B CN 201810375153 A CN201810375153 A CN 201810375153A CN 108587370 B CN108587370 B CN 108587370B
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- 239000002096 quantum dot Substances 0.000 title claims abstract description 65
- 150000001450 anions Chemical class 0.000 title claims abstract description 64
- 229910004613 CdTe Inorganic materials 0.000 title claims abstract description 60
- 239000003973 paint Substances 0.000 title claims abstract description 31
- 239000000839 emulsion Substances 0.000 title claims abstract description 28
- 239000006185 dispersion Substances 0.000 claims abstract description 67
- DNIAPMSPPWPWGF-UHFFFAOYSA-N Propylene glycol Chemical compound CC(O)CO DNIAPMSPPWPWGF-UHFFFAOYSA-N 0.000 claims abstract description 33
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 32
- 239000000654 additive Substances 0.000 claims abstract description 27
- 230000000996 additive effect Effects 0.000 claims abstract description 27
- 239000002270 dispersing agent Substances 0.000 claims abstract description 19
- 239000002518 antifoaming agent Substances 0.000 claims abstract description 18
- 239000002562 thickening agent Substances 0.000 claims abstract description 16
- 150000005690 diesters Chemical class 0.000 claims abstract description 15
- 239000004816 latex Substances 0.000 claims abstract description 14
- 229920000126 latex Polymers 0.000 claims abstract description 14
- SOQBVABWOPYFQZ-UHFFFAOYSA-N oxygen(2-);titanium(4+) Chemical compound [O-2].[O-2].[Ti+4] SOQBVABWOPYFQZ-UHFFFAOYSA-N 0.000 claims abstract description 8
- 239000011258 core-shell material Substances 0.000 claims abstract description 7
- 238000009736 wetting Methods 0.000 claims abstract description 7
- 238000003756 stirring Methods 0.000 claims description 69
- 150000002500 ions Chemical class 0.000 claims description 56
- 239000000843 powder Substances 0.000 claims description 44
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 40
- 239000000243 solution Substances 0.000 claims description 32
- 238000006243 chemical reaction Methods 0.000 claims description 31
- RSWGJHLUYNHPMX-UHFFFAOYSA-N Abietic-Saeure Natural products C12CCC(C(C)C)=CC2=CCC2C1(C)CCCC2(C)C(O)=O RSWGJHLUYNHPMX-UHFFFAOYSA-N 0.000 claims description 30
- KHPCPRHQVVSZAH-HUOMCSJISA-N Rosin Natural products O(C/C=C/c1ccccc1)[C@H]1[C@H](O)[C@@H](O)[C@@H](O)[C@@H](CO)O1 KHPCPRHQVVSZAH-HUOMCSJISA-N 0.000 claims description 30
- KHPCPRHQVVSZAH-UHFFFAOYSA-N trans-cinnamyl beta-D-glucopyranoside Natural products OC1C(O)C(O)C(CO)OC1OCC=CC1=CC=CC=C1 KHPCPRHQVVSZAH-UHFFFAOYSA-N 0.000 claims description 30
- 150000002148 esters Chemical class 0.000 claims description 27
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 24
- 239000007788 liquid Substances 0.000 claims description 24
- 238000002156 mixing Methods 0.000 claims description 23
- JOXIMZWYDAKGHI-UHFFFAOYSA-N toluene-4-sulfonic acid Chemical compound CC1=CC=C(S(O)(=O)=O)C=C1 JOXIMZWYDAKGHI-UHFFFAOYSA-N 0.000 claims description 22
- 238000001816 cooling Methods 0.000 claims description 21
- 235000019441 ethanol Nutrition 0.000 claims description 20
- 238000000227 grinding Methods 0.000 claims description 20
- 238000010438 heat treatment Methods 0.000 claims description 20
- 239000011259 mixed solution Substances 0.000 claims description 20
- 229920002678 cellulose Polymers 0.000 claims description 18
- 239000002253 acid Substances 0.000 claims description 17
- MTHSVFCYNBDYFN-UHFFFAOYSA-N diethylene glycol Chemical compound OCCOCCO MTHSVFCYNBDYFN-UHFFFAOYSA-N 0.000 claims description 15
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 claims description 13
- 230000001050 lubricating effect Effects 0.000 claims description 13
- 150000001412 amines Chemical class 0.000 claims description 12
- 239000001856 Ethyl cellulose Substances 0.000 claims description 11
- ZZSNKZQZMQGXPY-UHFFFAOYSA-N Ethyl cellulose Chemical compound CCOCC1OC(OC)C(OCC)C(OCC)C1OC1C(O)C(O)C(OC)C(CO)O1 ZZSNKZQZMQGXPY-UHFFFAOYSA-N 0.000 claims description 11
- 229920001249 ethyl cellulose Polymers 0.000 claims description 11
- 235000019325 ethyl cellulose Nutrition 0.000 claims description 11
- 239000000203 mixture Substances 0.000 claims description 11
- 238000002360 preparation method Methods 0.000 claims description 11
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 10
- ROOXNKNUYICQNP-UHFFFAOYSA-N ammonium persulfate Chemical compound [NH4+].[NH4+].[O-]S(=O)(=O)OOS([O-])(=O)=O ROOXNKNUYICQNP-UHFFFAOYSA-N 0.000 claims description 10
- 239000008367 deionised water Substances 0.000 claims description 10
- 229910021641 deionized water Inorganic materials 0.000 claims description 10
- 238000007599 discharging Methods 0.000 claims description 10
- 238000001914 filtration Methods 0.000 claims description 10
- 239000002245 particle Substances 0.000 claims description 10
- -1 phosphate ester Chemical class 0.000 claims description 10
- YHWCPXVTRSHPNY-UHFFFAOYSA-N butan-1-olate;titanium(4+) Chemical compound [Ti+4].CCCC[O-].CCCC[O-].CCCC[O-].CCCC[O-] YHWCPXVTRSHPNY-UHFFFAOYSA-N 0.000 claims description 9
- 238000000034 method Methods 0.000 claims description 9
- MARUHZGHZWCEQU-UHFFFAOYSA-N 5-phenyl-2h-tetrazole Chemical compound C1=CC=CC=C1C1=NNN=N1 MARUHZGHZWCEQU-UHFFFAOYSA-N 0.000 claims description 8
- 239000002585 base Substances 0.000 claims description 8
- IEJIGPNLZYLLBP-UHFFFAOYSA-N dimethyl carbonate Chemical compound COC(=O)OC IEJIGPNLZYLLBP-UHFFFAOYSA-N 0.000 claims description 7
- JAHNSTQSQJOJLO-UHFFFAOYSA-N 2-(3-fluorophenyl)-1h-imidazole Chemical compound FC1=CC=CC(C=2NC=CN=2)=C1 JAHNSTQSQJOJLO-UHFFFAOYSA-N 0.000 claims description 6
- 235000021355 Stearic acid Nutrition 0.000 claims description 6
- GSEJCLTVZPLZKY-UHFFFAOYSA-N Triethanolamine Chemical compound OCCN(CCO)CCO GSEJCLTVZPLZKY-UHFFFAOYSA-N 0.000 claims description 6
- 239000001913 cellulose Substances 0.000 claims description 6
- LVHBHZANLOWSRM-UHFFFAOYSA-N methylenebutanedioic acid Natural products OC(=O)CC(=C)C(O)=O LVHBHZANLOWSRM-UHFFFAOYSA-N 0.000 claims description 6
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 claims description 6
- OQCDKBAXFALNLD-UHFFFAOYSA-N octadecanoic acid Natural products CCCCCCCC(C)CCCCCCCCC(O)=O OQCDKBAXFALNLD-UHFFFAOYSA-N 0.000 claims description 6
- 239000008117 stearic acid Substances 0.000 claims description 6
- JMXKSZRRTHPKDL-UHFFFAOYSA-N titanium ethoxide Chemical compound [Ti+4].CC[O-].CC[O-].CC[O-].CC[O-] JMXKSZRRTHPKDL-UHFFFAOYSA-N 0.000 claims description 6
- PQUXFUBNSYCQAL-UHFFFAOYSA-N 1-(2,3-difluorophenyl)ethanone Chemical compound CC(=O)C1=CC=CC(F)=C1F PQUXFUBNSYCQAL-UHFFFAOYSA-N 0.000 claims description 5
- XESZUVZBAMCAEJ-UHFFFAOYSA-N 4-tert-butylcatechol Chemical compound CC(C)(C)C1=CC=C(O)C(O)=C1 XESZUVZBAMCAEJ-UHFFFAOYSA-N 0.000 claims description 5
- ZCZFEIZSYJAXKS-UHFFFAOYSA-N [3-hydroxy-2,2-bis(hydroxymethyl)propyl] prop-2-enoate Chemical compound OCC(CO)(CO)COC(=O)C=C ZCZFEIZSYJAXKS-UHFFFAOYSA-N 0.000 claims description 5
- 229940048053 acrylate Drugs 0.000 claims description 5
- 229910001870 ammonium persulfate Inorganic materials 0.000 claims description 5
- 239000007864 aqueous solution Substances 0.000 claims description 5
- XIEPJMXMMWZAAV-UHFFFAOYSA-N cadmium nitrate Inorganic materials [Cd+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O XIEPJMXMMWZAAV-UHFFFAOYSA-N 0.000 claims description 5
- 239000013530 defoamer Substances 0.000 claims description 5
- 239000011261 inert gas Substances 0.000 claims description 5
- 229910052757 nitrogen Inorganic materials 0.000 claims description 5
- NMHMNPHRMNGLLB-UHFFFAOYSA-N phloretic acid Chemical compound OC(=O)CCC1=CC=C(O)C=C1 NMHMNPHRMNGLLB-UHFFFAOYSA-N 0.000 claims description 5
- 229940047670 sodium acrylate Drugs 0.000 claims description 5
- 239000007787 solid Substances 0.000 claims description 5
- 238000006467 substitution reaction Methods 0.000 claims description 5
- 238000009210 therapy by ultrasound Methods 0.000 claims description 5
- 229910019142 PO4 Inorganic materials 0.000 claims description 4
- 239000004721 Polyphenylene oxide Substances 0.000 claims description 4
- BLRPTPMANUNPDV-UHFFFAOYSA-N Silane Chemical compound [SiH4] BLRPTPMANUNPDV-UHFFFAOYSA-N 0.000 claims description 4
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims description 4
- 239000007822 coupling agent Substances 0.000 claims description 4
- 239000010452 phosphate Substances 0.000 claims description 4
- 229920000570 polyether Polymers 0.000 claims description 4
- 229910000077 silane Inorganic materials 0.000 claims description 4
- 239000003381 stabilizer Substances 0.000 claims description 4
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 3
- HSFWRNGVRCDJHI-UHFFFAOYSA-N alpha-acetylene Natural products C#C HSFWRNGVRCDJHI-UHFFFAOYSA-N 0.000 claims description 3
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical class O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 claims description 3
- LYCAIKOWRPUZTN-UHFFFAOYSA-N ethylene glycol Natural products OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 claims description 3
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 claims description 3
- 229920002635 polyurethane Polymers 0.000 claims description 3
- 239000004814 polyurethane Substances 0.000 claims description 3
- HKJYVRJHDIPMQB-UHFFFAOYSA-N propan-1-olate;titanium(4+) Chemical compound CCCO[Ti](OCCC)(OCCC)OCCC HKJYVRJHDIPMQB-UHFFFAOYSA-N 0.000 claims description 3
- 229910052710 silicon Inorganic materials 0.000 claims description 3
- 239000010703 silicon Substances 0.000 claims description 3
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 claims description 2
- 229920002125 Sokalan® Polymers 0.000 claims description 2
- 239000003513 alkali Substances 0.000 claims description 2
- RQPZNWPYLFFXCP-UHFFFAOYSA-L barium dihydroxide Chemical compound [OH-].[OH-].[Ba+2] RQPZNWPYLFFXCP-UHFFFAOYSA-L 0.000 claims description 2
- 229910001863 barium hydroxide Inorganic materials 0.000 claims description 2
- 239000004584 polyacrylic acid Substances 0.000 claims description 2
- 229910052700 potassium Inorganic materials 0.000 claims description 2
- 239000011591 potassium Substances 0.000 claims description 2
- GNBVPFITFYNRCN-UHFFFAOYSA-M sodium thioglycolate Chemical compound [Na+].[O-]C(=O)CS GNBVPFITFYNRCN-UHFFFAOYSA-M 0.000 claims description 2
- 229940046307 sodium thioglycolate Drugs 0.000 claims description 2
- ZJRRHXQQZBQOMB-UHFFFAOYSA-M sodium;3-sulfanylpropanoate Chemical compound [Na+].[O-]C(=O)CCS ZJRRHXQQZBQOMB-UHFFFAOYSA-M 0.000 claims description 2
- 229940071127 thioglycolate Drugs 0.000 claims description 2
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 claims 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N 2-Propenoic acid Natural products OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims 1
- 230000002209 hydrophobic effect Effects 0.000 claims 1
- 229920000831 ionic polymer Polymers 0.000 claims 1
- MQRWPMGRGIILKQ-UHFFFAOYSA-N sodium telluride Chemical compound [Na][Te][Na] MQRWPMGRGIILKQ-UHFFFAOYSA-N 0.000 claims 1
- 230000008961 swelling Effects 0.000 claims 1
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 abstract description 18
- 239000004408 titanium dioxide Substances 0.000 abstract description 9
- 239000011941 photocatalyst Substances 0.000 abstract description 5
- 230000001954 sterilising effect Effects 0.000 abstract description 3
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 description 6
- 230000000694 effects Effects 0.000 description 6
- 229910052708 sodium Inorganic materials 0.000 description 6
- 239000011734 sodium Substances 0.000 description 6
- 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 4
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 3
- 230000000844 anti-bacterial effect Effects 0.000 description 3
- 238000004062 sedimentation Methods 0.000 description 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 125000000129 anionic group Chemical group 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 238000005034 decoration Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 230000036541 health Effects 0.000 description 2
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 description 2
- 238000001228 spectrum Methods 0.000 description 2
- 238000004659 sterilization and disinfection Methods 0.000 description 2
- 229910052613 tourmaline Inorganic materials 0.000 description 2
- 229940070527 tourmaline Drugs 0.000 description 2
- 239000011032 tourmaline Substances 0.000 description 2
- CFPHMAVQAJGVPV-UHFFFAOYSA-N 2-sulfanylbutanoic acid Chemical compound CCC(S)C(O)=O CFPHMAVQAJGVPV-UHFFFAOYSA-N 0.000 description 1
- PMNLUUOXGOOLSP-UHFFFAOYSA-M 2-sulfanylpropanoate Chemical compound CC(S)C([O-])=O PMNLUUOXGOOLSP-UHFFFAOYSA-M 0.000 description 1
- 206010035664 Pneumonia Diseases 0.000 description 1
- 239000004902 Softening Agent Substances 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 206010044302 Tracheitis Diseases 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 238000004378 air conditioning Methods 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- 239000012752 auxiliary agent Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000011203 carbon fibre reinforced carbon Substances 0.000 description 1
- 230000003197 catalytic effect Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000004132 cross linking Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 150000002009 diols Chemical class 0.000 description 1
- 230000032050 esterification Effects 0.000 description 1
- 238000005886 esterification reaction Methods 0.000 description 1
- 239000011094 fiberboard Substances 0.000 description 1
- 230000003301 hydrolyzing effect Effects 0.000 description 1
- 210000000987 immune system Anatomy 0.000 description 1
- 125000001972 isopentyl group Chemical group [H]C([H])([H])C([H])(C([H])([H])[H])C([H])([H])C([H])([H])* 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000004060 metabolic process Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 210000000653 nervous system Anatomy 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 239000002243 precursor Substances 0.000 description 1
- 238000005956 quaternization reaction Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 210000002345 respiratory system Anatomy 0.000 description 1
- 208000023504 respiratory system disease Diseases 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 235000012239 silicon dioxide Nutrition 0.000 description 1
- XJKVPKYVPCWHFO-UHFFFAOYSA-N silicon;hydrate Chemical compound O.[Si] XJKVPKYVPCWHFO-UHFFFAOYSA-N 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 230000002195 synergetic effect Effects 0.000 description 1
- 230000009044 synergistic interaction Effects 0.000 description 1
- 230000002194 synthesizing effect Effects 0.000 description 1
- 239000012209 synthetic fiber Substances 0.000 description 1
- 229920002994 synthetic fiber Polymers 0.000 description 1
- 239000011782 vitamin Substances 0.000 description 1
- 229940088594 vitamin Drugs 0.000 description 1
- 229930003231 vitamin Natural products 0.000 description 1
- 235000013343 vitamin Nutrition 0.000 description 1
- 150000003722 vitamin derivatives Chemical class 0.000 description 1
- 238000004383 yellowing Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D143/00—Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and containing boron, silicon, phosphorus, selenium, tellurium, or a metal; Coating compositions based on derivatives of such polymers
- C09D143/04—Homopolymers or copolymers of monomers containing silicon
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08B—POLYSACCHARIDES; DERIVATIVES THEREOF
- C08B15/00—Preparation of other cellulose derivatives or modified cellulose, e.g. complexes
- C08B15/05—Derivatives containing elements other than carbon, hydrogen, oxygen, halogens or sulfur
- C08B15/06—Derivatives containing elements other than carbon, hydrogen, oxygen, halogens or sulfur containing nitrogen, e.g. carbamates
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F220/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical or a salt, anhydride ester, amide, imide or nitrile thereof
- C08F220/02—Monocarboxylic acids having less than ten carbon atoms; Derivatives thereof
- C08F220/04—Acids; Metal salts or ammonium salts thereof
- C08F220/06—Acrylic acid; Methacrylic acid; Metal salts or ammonium salts thereof
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/02—Emulsion paints including aerosols
- C09D5/024—Emulsion paints including aerosols characterised by the additives
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/02—Emulsion paints including aerosols
- C09D5/024—Emulsion paints including aerosols characterised by the additives
- C09D5/025—Preservatives, e.g. antimicrobial agents
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/02—Emulsion paints including aerosols
- C09D5/024—Emulsion paints including aerosols characterised by the additives
- C09D5/028—Pigments; Filters
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/14—Paints containing biocides, e.g. fungicides, insecticides or pesticides
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09F—NATURAL RESINS; FRENCH POLISH; DRYING-OILS; OIL DRYING AGENTS, i.e. SICCATIVES; TURPENTINE
- C09F1/00—Obtaining purification, or chemical modification of natural resins, e.g. oleo-resins
- C09F1/04—Chemical modification, e.g. esterification
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
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Abstract
The invention relates to a latex paint based on CdTe quantum dot modified nanometer anion sol, which comprises the following components: 25-80 parts of CdTe quantum dot modified nano anion sol, 350 parts of water 250-one additive, 3-5 parts of wetting dispersant, 1-3 parts of defoaming agent, 0.5-1 part of AP-95 multifunctional additive, 5-10 parts of unsaturated diester type film-forming additive, 5-10 parts of propylene glycol, 20-80 parts of titanium dioxide, 2-3 parts of thickening agent and 80-250 parts of silicone-acrylate emulsion. The invention synthesizes the porous nanometer anion sol with the stable non-precipitated active core-shell structure in the water dispersion system for the first time; the light energy released by the selected CdTe is absorbed by the photocatalyst nano titanium dioxide, so that the sterilizing effect of the photocatalyst nano titanium dioxide is improved.
Description
Technical Field
The invention relates to an emulsion paint, in particular to an emulsion paint based on CdTe quantum dot modified nanometer anion sol, and belongs to the technical field of building coatings.
Technical Field
In recent years, with the increasing of the living standard of people, the living environment is improved, the indoor decoration becomes luxurious and beautiful, and meanwhile, the problem that the indoor pollution caused by the decoration affects the human health is more and more. Generally, people require about 130 million negative ions per day, and our environments such as living rooms, offices, and entertainment venues can provide only about 1-20 million negative ions. This large contrast between supply and demand often leads to respiratory diseases such as pneumonia and tracheitis. In an air conditioning system for central heating and cooling equipment, negative ions are usually removed. Synthetic fibers and carpets have positive charges and are easy to absorb negative ions. Both the steel bar and the fiber board absorb negative ions. Therefore, the purposes of efficiently and durably purifying indoor harmful gases and keeping fresh and healthy living and working environments are more and more urgently pursued by people.
The main function of the negative ions is called 'air vitamin' in the medical field is represented as positive effect on the nervous system, the respiratory system, the metabolism, the circulatory system, the treatment and health care and the immune system of the human body. The content of negative ions in air is increased by adding negative ion powder into emulsion paint in the field of building coating at present. For example, CN201310453843.2 relates to interior wall latex paint with negative ions, far infrared rays and formaldehyde removal and a preparation method thereof, wherein nano photocatalyst and tourmaline negative ion powder are jointly applied to the production of interior wall paint, and the synergistic interaction of the nano photocatalyst and tourmaline negative ion powder is utilized to enhance the respective application effect; the product has the function of effectively releasing negative ions and far infrared rays in a weak light environment, has the function of removing free formaldehyde in indoor air, and also has a good effect of removing harmful gases such as benzene, ammonia and the like.
The existing anion latex paint has the defects of low anion powder efficiency, poor antibacterial property, single function and the like.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention aims to provide the emulsion paint based on CdTe quantum dot modified nanometer negative ion sol.
The emulsion paint based on CdTe quantum dot modified nanometer anion sol comprises the following components in parts by weight: 25-80 parts of CdTe quantum dot modified nano anion sol, 350 parts of water 250-one additive, 3-5 parts of wetting dispersant, 1-3 parts of defoaming agent, 0.5-1 part of AP-95 multifunctional additive, 5-10 parts of unsaturated diester type film-forming additive, 5-10 parts of propylene glycol, 20-80 parts of titanium dioxide, 2-3 parts of thickening agent and 80-250 parts of silicone-acrylate emulsion.
The CdTe quantum dot modified nanometer anion sol is prepared by the following method:
(1) preparing porous nanometer anion sol with an active core-shell structure: firstly, preparing 10-20 mass percent of natural negative ion powder aqueous dispersion, then adding the dispersion and grinding aid accounting for 0.1-0.3 percent of the total weight of the dispersion into a nano grinder to grind the dispersion to the median particle diameter (d) of the powder50) Discharging to obtain nanometer negative ion powder dispersion liquid with particle size less than 100 nm; adding 50 weight parts of nano-scale negative ion powder dispersion liquid and 10-20 weight parts of 0.6-1.2mol/L strong base solution into a reactorHeating to 80-95 ℃ for reaction for 6-12h, then cooling, filtering to remove solid or large-particle-size negative ion powder, fully dialyzing to remove strong base, adjusting the pH value to 8-9, and obtaining a dispersion liquid taking porous nano negative ion powder as a suspended matter, namely porous nano negative ion sol; adding 20 parts by weight of ethanol solution of titanate coupling agent with the mass fraction of 3-5% into a reactor, dropwise adding 20-25 parts by weight of porous nano anion sol while stirring, and continuously stirring for reaction for 1-2 hours after dropwise adding is finished for 1-2 hours to obtain sol solution A taking active nano titanium dioxide as a shell and porous nano anion powder as a core;
(2) preparing CdTe quantum dot sol: under the protection of inert gas, adding 0.2-0.3 part by weight of cadmium nitrate, 80-90 parts by weight of deionized water and a stabilizer into a reactor, stirring and mixing, adding strong base to adjust the pH to 8-9, adding 0.1-0.2 part by weight of sodium tellurihydride, stirring and reacting at 90-95 ℃ for 3-6 hours to obtain cadmium telluride quantum dot sol;
(3) CdTe quantum dot modified nano anion sol: under the condition of normal temperature stirring, dropwise adding 10-20 parts by weight of the cadmium telluride quantum dot sol in the (2) into 40-45 parts by weight of the sol solution A in the (1), after dropwise adding for 0.5-1h, continuously reacting for 2-4h to obtain the CdTe quantum dot modified nanometer anion sol.
The wetting dispersant is at least one of polycarboxylic acid type anionic dispersant, organic silicon aqueous dispersant and nonionic high polymer aqueous dispersant; the defoaming agent is preferably at least one of a silicone defoaming agent, a polyacrylic acid defoaming agent, a phosphate ester defoaming agent, a silane polyether defoaming agent and an acetylene glycol defoaming agent.
The preparation method of the unsaturated diester-type film-forming aid comprises the following steps;
(1) heating and softening 2-3 parts by weight of rosin, adding the rosin into diethylene glycol with the weight 10-16 times of the weight of the rosin, and stirring for 10-20 minutes at the temperature of 60-65 ℃ to obtain rosin alcohol solution;
(2) adding 20-25 parts by weight of tetrabutyl titanate into the rosin alcohol solution, adding 45-50 parts by weight of water, stirring for 3-4 hours, adding 25-30 parts by weight of itaconic acid, raising the temperature to 90-96 ℃, adding 0.1-0.2 part by weight of p-toluenesulfonic acid, keeping the temperature, stirring for 1-2 hours, and dehydrating to obtain ester sol;
(3) adding the ester sol into dimethyl carbonate accounting for 46-50% of the weight of the ester sol, and uniformly stirring to obtain an ester dispersion liquid;
(4) mixing 10-14 parts by weight of triethanolamine and 2-3 parts by weight of ethyl cellulose, adding the mixture into absolute ethyl alcohol of which the weight is 1.8-2 times that of the mixture, carrying out ultrasonic treatment for 1-2 hours, distilling to remove the ethyl alcohol, adding 20-22 parts by weight of stearic acid, uniformly stirring, adding 0.01-0.02 part by weight of p-toluenesulfonic acid, raising the temperature to 180 ℃ and 185 ℃, carrying out stirring reaction for 6-7 hours, and cooling to normal temperature to obtain the cellulose ester amine;
(5) mixing the ester dispersion liquid and the cellulose ester amine, stirring uniformly, feeding into a reaction kettle, introducing nitrogen, adjusting the temperature of the reaction kettle to 70-76 ℃, reacting for 40-46 hours, discharging and cooling to obtain the product;
the degree of substitution of the ethyl cellulose is 2.3-2.5;
the grinding aid is a polycarboxylic acid lubricating grinding aid; the strong base is at least one of sodium hydroxide, potassium hydroxide and barium hydroxide;
the polycarboxylic acid lubricating grinding aid has the following structure:
the preparation method comprises the following steps: (1) mixing 10-20 parts by weight of sodium acrylate, 5-10 parts by weight of pentaerythritol monoacrylate and 50-100 parts by weight of deionized water under stirring, and heating to 90-100 ℃ to obtain a mixed solution a; (2) dropwise adding 3-5 parts by weight of 4-5% ammonium persulfate aqueous solution into the mixed solution a at 90-100 ℃, and continuing to react for 3-5h at 90-100 ℃ after the dropwise addition is finished to obtain mixed solution b; (3) stopping heating, adding 0.1-0.2 part by weight of chain terminator p-tert-butylcatechol into the mixed solution b, and cooling to obtain the polycarboxylic acid lubricating grinding aid.
The titanate coupling agent is at least one of tetrabutyl titanate, tetraethyl titanate and tetrapropyl titanate.
The stabilizer is at least one of sodium thioglycolate, sodium 3-mercaptopropionate, potassium 3-thioglycolate, potassium 3-mercaptobutyrate and sodium 3-mercaptobutyrate.
The emulsion paint based on CdTe quantum dot modified nanometer anion sol is prepared by the following method:
sequentially adding CdTe quantum dot modified nano negative ion sol, water, wetting dispersant, AP-95 multifunctional additive, unsaturated diester type film-forming additive and propylene glycol into a dispersion cylinder, keeping a dispersion machine to rotate at 400-600 rpm, fully dispersing for 20-30min, then enabling the center of a dispersion disc to be close to the bottom of a reaction kettle, increasing the rotation speed to 800-1200 rpm, and adding titanium dioxide into the dispersion cylinder for dispersing for 0.5-1 h; reducing the rotating speed to 600-800 rpm, adding the silicone-acrylic emulsion, the thickening agent and the defoaming agent, dispersing for 0.5-1h, and filtering by using a filter screen with 800 meshes of 300 plus materials to obtain a white finished product.
The invention has the following advantages or beneficial effects: (1) firstly synthesizing porous nanometer anion sol with an active core-shell structure which is not precipitated in an aqueous dispersion system; (2) the corresponding spectrum of the selected CdTe quantum dots is matched with the solar spectrum, the light energy released by the CdTe is absorbed by the photocatalyst nano titanium dioxide, the sterilization effect is improved, the negative ion release rate of the negative ion powder is improved, the antibacterial effect of the latex paint is good, and other antibacterial or mildew-proof auxiliary agents are not required to be added; (3) the selected unsaturated diester type film-forming additive can improve the film-forming property (no cracking) of the latex paint, and the carbon-carbon double bond contained in the unsaturated diester type film-forming additive can improve the crosslinking density of the silicone-acrylic emulsion at the later curing stage, so that the water resistance of the latex paint is improved; (4) the nano negative ion sol with the porous structure is prepared, and the latex paint has an ultrahigh negative ion release effect due to the larger specific surface area, higher effective content (a great amount of silicon dioxide is removed by strong alkali) and stronger synergistic effect with CdTe; (5) the added polycarboxylic acid lubricating grinding aid not only contains-COONa generating an electric double layer structure in a molecular structure, but also has an isopentyl tetraol monoester unit with a lubricating effect, and can grind natural negative ion powder to a nanometer level, so that the comprehensive quality of the finished emulsion paint is improved; (6) the unsaturated diester film-forming assistant is prepared by hydrolyzing tetrabutyl titanate serving as a precursor in an alcohol-water solution containing rosin, blending hydrolyzed sol and itaconic acid, performing catalytic esterification under the action of p-toluenesulfonic acid to obtain unsaturated diester sol, and dispersing the unsaturated diester sol into dimethyl carbonate to obtain ester dispersion liquid; then treating cellulose by triethanolamine, blending the cellulose with stearic acid for reaction, blending the obtained cellulose ester amine with ester dispersion liquid, and performing quaternization reaction of the ester amine and dimethyl carbonate, so that the dispersion compatibility of the cellulose among organic raw materials can be improved, the film forming effect of the ethyl cellulose is enhanced, and the blend of the cellulose ester amine with rosin can improve the film forming viscosity and enhance the adhesive force strength; the obtained quaternized product can be used as a softening agent and has the effects of flexibility, sterilization, yellowing resistance and the like, so that the quality of a finished product is improved.
Detailed Description
The latex paint based on CdTe quantum dot modified nano anion sol of the invention is further described with reference to the embodiment. It is to be understood that the specific embodiments described herein are merely illustrative of the relevant invention and not restrictive of the invention.
Example 1
The emulsion paint based on CdTe quantum dot modified nanometer anion sol comprises the following components in parts by weight: 80 parts of CdTe quantum dot modified nano negative ion sol, 350 parts of water, 5 parts of organic silicon water-based dispersing agent, 1 part of phosphate defoaming agent, 0.5 part of AP-95 multifunctional additive, 10 parts of unsaturated diester type film-forming additive, 10 parts of propylene glycol, 80 parts of titanium dioxide, 2 parts of associative polyurethane thickener and 250 parts of silicone-acrylate emulsion.
The CdTe quantum dot modified nanometer anion sol is prepared by the following method:
(1) preparing porous nanometer anion sol with an active core-shell structure: firstly, preparing natural negative ion powder water dispersion with mass fraction of 14%, then adding the above-mentioned dispersion and grinding aid which is 0.2% of total weight of said dispersion into nano grindingGrinding in a mill to obtain powder with median particle diameter (d)50) Discharging to obtain nanometer negative ion powder dispersion liquid with particle size less than 100 nm; adding 50 parts by weight of nano-scale negative ion powder dispersion liquid and 13 parts by weight of 0.9mol/L potassium hydroxide solution into a reactor, heating to 85 ℃ for reaction for 8 hours, then cooling, filtering to remove solid or large-particle-size negative ion powder, fully dialyzing to remove potassium hydroxide, and adjusting the pH value to 8-9 to obtain dispersion liquid taking porous nano-scale negative ion powder as suspended matter, namely porous nano-scale negative ion sol; adding 20 parts by weight of ethanol solution of tetraethyl titanate with the mass fraction of 4% into a reactor, dropwise adding 22 parts by weight of porous nano anion sol while stirring, and continuously stirring and reacting for 1.5h after the dropwise adding is finished for 1.5h to obtain sol solution A taking active nano titanium dioxide as a shell and porous nano anion powder as a core;
the grinding aid has the following structure:
the preparation method comprises the following steps: (1) mixing 10 parts by weight of sodium acrylate, 5 parts by weight of pentaerythritol monoacrylate and 50 parts by weight of deionized water under stirring, and heating to 90 ℃ to obtain a mixed solution a; (2) dropwise adding 3 parts by weight of 4% ammonium persulfate aqueous solution into the mixed solution a at 90 ℃, and continuing to react for 3 hours at 90 ℃ after the dropwise addition is finished to obtain mixed solution b; (3) stopping heating, adding 0.1 part by weight of chain terminator p-tert-butylcatechol into the mixed solution b, uniformly stirring, and cooling to obtain the polycarboxylic acid lubricating grinding aid.
(2) Preparing CdTe quantum dot sol: under the protection of inert gas, adding 0.22 weight part of cadmium nitrate, 84 weight parts of deionized water and 0.1 weight part of 3-sodium mercaptopropionate into a reactor, stirring and mixing, adding potassium hydroxide to adjust the pH value to be 8-9, adding 0.15 weight part of sodium tellurihydride, stirring and reacting for 4 hours at 92 ℃ to obtain cadmium telluride quantum dot sol;
(3) CdTe quantum dot modified nano anion sol: under the condition of normal temperature stirring, 14 parts by weight of cadmium telluride quantum dot sol in the solution (2) is dropwise added into 42 parts by weight of the solution (1) in the solution (A), after 0.7h of dropwise addition, the reaction is continued for 3h to obtain the CdTe quantum dot modified nano anion sol, and the CdTe quantum dot modified nano anion sol is placed in a volumetric flask for 30 days without sedimentation.
The preparation method of the unsaturated diester-type film-forming aid comprises the following steps;
(1) taking 2 parts by weight of rosin, heating to soften the rosin, adding the rosin into diethylene glycol with the weight being 10 times of the weight of the rosin, and stirring for 10 minutes at the temperature of 60 ℃ to obtain rosin alcohol solution;
(2) adding 20 parts by weight of tetrabutyl titanate into the rosin alcohol solution, adding 45 parts by weight of water, stirring for 3 hours, adding 25 parts by weight of itaconic acid, raising the temperature to 90 ℃, adding 0.1 part by weight of p-toluenesulfonic acid, keeping the temperature, stirring for 1 hour, and dehydrating to obtain ester sol;
(3) adding the ester sol into dimethyl carbonate accounting for 46 percent of the weight of the ester sol, and uniformly stirring to obtain an ester dispersion liquid;
(4) mixing 10 parts by weight of triethanolamine and 2 parts by weight of ethyl cellulose, adding the mixture into absolute ethyl alcohol of which the weight is 1.8 times that of the mixture, carrying out ultrasonic treatment for 1 hour, distilling to remove the ethyl alcohol, adding 20-22 parts by weight of stearic acid, uniformly stirring, adding 0.01 part by weight of p-toluenesulfonic acid, raising the temperature to 180 ℃, carrying out stirring reaction for 6 hours, and cooling to normal temperature to obtain the cellulose ester amine;
(5) mixing the ester dispersion liquid and the cellulose ester amine, stirring uniformly, feeding into a reaction kettle, introducing nitrogen, adjusting the temperature of the reaction kettle to 70 ℃, reacting for 40 hours, discharging and cooling to obtain the product;
the degree of substitution of the ethyl cellulose is 2.3;
the latex paint based on CdTe quantum dot modified nanometer anion sol in the embodiment is prepared by the following method:
sequentially adding CdTe quantum dot modified nano negative ion sol, water, an organic silicon aqueous dispersant, an AP-95 multifunctional additive, an unsaturated diester type film-forming additive and propylene glycol into a dispersion cylinder, keeping a dispersion machine to rotate at 600rpm, fully dispersing for 20min, then enabling the center of a dispersion disc to be close to the bottom of a reaction kettle, increasing the rotating speed to 1200rpm, and adding titanium dioxide into the dispersion cylinder to disperse for 0.5 h; reducing the rotating speed to 800rpm, adding silicone-acrylic emulsion, associative polyurethane thickener and phosphate defoamer, dispersing for 0.5h, and filtering with a 300-mesh filter screen to obtain a white finished product.
Example 2
The emulsion paint based on CdTe quantum dot modified nanometer anion sol comprises the following components in parts by weight: 25 parts of CdTe quantum dot modified nano anion sol, 250 parts of water, 3 parts of polycarboxylic acid type anion dispersant, 3 parts of silane polyether defoamer, 1 part of AP-95 multifunctional additive, 5 parts of unsaturated diester type film-forming additive, 5 parts of propylene glycol, 20 parts of titanium dioxide, 3 parts of modified bentonite thickener and 80 parts of silicone-acrylate emulsion.
The CdTe quantum dot modified nanometer anion sol is prepared by the following method:
(1) preparing porous nanometer anion sol with an active core-shell structure: firstly, preparing 20 mass percent of natural negative ion powder aqueous dispersion, then adding the dispersion and grinding aid accounting for 0.3 percent of the total weight of the dispersion into a nano grinder to grind the dispersion to the median particle size (d) of the powder50) Discharging to obtain nanometer negative ion powder dispersion liquid with particle size less than 100 nm; adding 50 parts by weight of nano-scale negative ion powder dispersion liquid and 20 parts by weight of 0.6mol/L sodium hydroxide solution into a reactor, heating to 95 ℃ for reaction for 6 hours, then cooling, filtering to remove solid or large-particle-size negative ion powder, fully dialyzing to remove sodium hydroxide, and adjusting the pH value to 8-9 to obtain dispersion liquid taking porous nano-scale negative ion powder as suspended matter, namely porous nano-scale negative ion sol; adding 20 parts by weight of ethanol solution of tetrabutyl titanate with the mass fraction of 5% into a reactor, dropwise adding 25 parts by weight of porous nano anion sol while stirring, and continuously stirring for reaction for 2 hours after the dropwise adding is finished for 2 hours to obtain sol solution A taking active nano titanium dioxide as a shell and porous nano anion powder as a core;
the polycarboxylic acid lubricating grinding aid has the following structure:
the preparation method comprises the following steps: (1) mixing 20 parts by weight of sodium acrylate, 10 parts by weight of pentaerythritol monoacrylate and 100 parts by weight of deionized water under stirring, and heating to 100 ℃ to obtain a mixed solution a; (2) dropwise adding 5 parts by weight of 5% ammonium persulfate aqueous solution into the mixed solution a at 100 ℃, and continuing to react for 5 hours at 100 ℃ after the dropwise addition is finished to obtain mixed solution b; (3) stopping heating, adding 0.2 part by weight of chain terminator p-tert-butylcatechol into the mixed solution b, uniformly stirring, and cooling to obtain the polycarboxylic acid lubricating grinding aid.
(2) Preparing CdTe quantum dot sol: under the protection of inert gas, adding 0.3 part by weight of cadmium nitrate, 90 parts by weight of deionized water and 0.2 part by weight of 3-potassium thioglycolate into a reactor, stirring and mixing, adding sodium hydroxide to adjust the pH value to 8, adding 0.2 part by weight of sodium tellurihydride, stirring and reacting for 3 hours at 95 ℃ to obtain cadmium telluride quantum dot sol;
(3) CdTe quantum dot modified nano anion sol: under the condition of normal temperature stirring, dropwise adding 20 parts by weight of the CdTe quantum dot sol in the step (2) into 45 parts by weight of the sol solution A in the step (1), after 1 hour of dropwise addition, continuing to react for 4 hours to obtain the CdTe quantum dot modified nano anion sol, and placing the CdTe quantum dot modified nano anion sol in a volumetric flask for 30 days without sedimentation.
The preparation method of the unsaturated diester-type film-forming aid comprises the following steps;
(1) taking 3 parts by weight of rosin, heating to soften the rosin, adding the rosin into diethylene glycol with the weight 16 times that of the rosin, and stirring for 20 minutes at the temperature of 65 ℃ to obtain rosin alcohol solution;
(2) adding 25 parts by weight of tetrabutyl titanate into the rosin alcohol solution, adding 50 parts by weight of water, stirring for 4 hours, adding 25-30 parts by weight of itaconic acid, raising the temperature to 96 ℃, adding 0.2 part by weight of p-toluenesulfonic acid, keeping the temperature, stirring for 2 hours, and dehydrating to obtain ester sol;
(3) adding the ester sol into dimethyl carbonate accounting for 50% of the weight of the ester sol, and uniformly stirring to obtain an ester dispersion liquid;
(4) mixing 14 parts by weight of triethanolamine and 3 parts by weight of ethyl cellulose, adding the mixture into absolute ethyl alcohol which is 2 times of the weight of the mixture, carrying out ultrasonic treatment for 2 hours, distilling to remove the ethyl alcohol, adding 22 parts by weight of stearic acid, uniformly stirring, adding 0.02 part by weight of p-toluenesulfonic acid, raising the temperature to 185 ℃, carrying out stirring reaction for 7 hours, and cooling to normal temperature to obtain the cellulose ester amine;
(5) mixing the ester dispersion liquid and the cellulose ester amine, stirring uniformly, feeding into a reaction kettle, introducing nitrogen, adjusting the temperature of the reaction kettle to 76 ℃, reacting for 46 hours, discharging and cooling to obtain the product;
the degree of substitution of the ethyl cellulose is 2.5;
the latex paint based on CdTe quantum dot modified nanometer anion sol in the embodiment is prepared by the following method:
sequentially adding CdTe quantum dot modified nano negative ion sol, water, polycarboxylic acid type anionic dispersant, AP-95 multifunctional additive, unsaturated diester type film forming additive and propylene glycol into a dispersion cylinder, keeping a dispersion machine to rotate at 500rpm, fully dispersing for 24min, then enabling the center of a dispersion disc to be close to the bottom of a reaction kettle, increasing the rotating speed to 900rpm, and adding titanium dioxide into the dispersion cylinder to disperse for 0.8 h; reducing the rotating speed to 700rpm, adding silicone-acrylic emulsion, a modified bentonite thickener and a silane polyether defoamer, dispersing for 0.9h, and filtering by using a 500-mesh filter screen to obtain a white finished product.
Example 3
The emulsion paint based on CdTe quantum dot modified nanometer anion sol comprises the following components in parts by weight: 60 parts of CdTe quantum dot modified nano negative ion sol, 300 parts of water, 4 parts of non-ionic high-molecular water-based dispersing agent, 2 parts of acetylenic diol defoaming agent, 0.8 part of AP-95 multifunctional additive, 9 parts of unsaturated diester-type film-forming additive, 8 parts of propylene glycol, 49 parts of titanium dioxide, 2.5 parts of modified cellulose thickener and 190 parts of silicone-acrylate emulsion.
The CdTe quantum dot modified nanometer anion sol is prepared by the following method:
(1) preparing porous nanometer anion sol with an active core-shell structure: firstly, preparing 10 mass percent of natural anion powder aqueous dispersion, then adding the dispersion and 0.1 percent of polycarboxylic acid type grinding aid accounting for the total weight of the dispersion into nano grindingGrinding in machine to obtain powder with median particle diameter (d)50) Discharging to obtain nanometer negative ion powder dispersion liquid with particle size less than 100 nm; adding 50 parts by weight of nano-scale negative ion powder dispersion and 10 parts by weight of 1.2mol/L sodium hydroxide solution into a reactor, heating to 80 ℃ for reaction for 6 hours, then cooling, filtering to remove solid or large-particle-size negative ion powder, fully dialyzing to remove sodium hydroxide, and adjusting the pH value to 8-9 to obtain dispersion liquid taking porous nano-scale negative ion powder as suspended matter, namely porous nano-scale negative ion sol; adding 20 parts by weight of ethanol solution of tetrapropyl titanate with the mass fraction of 3% into a reactor, dropwise adding 20 parts by weight of porous nano anion sol while stirring, and continuously stirring for reaction for 1h after 1h of dropwise adding is finished to obtain sol solution A taking active nano titanium dioxide as a shell and porous nano anion powder as a core;
the polycarboxylic acid lubricating grinding aid has the following structure:
the preparation method comprises the following steps: (1) mixing 15 parts by weight of sodium acrylate, 7 parts by weight of pentaerythritol monoacrylate and 70 parts by weight of deionized water under stirring, and heating to 95 ℃ to obtain a mixed solution a; (2) dropwise adding 4 parts by weight of 4% ammonium persulfate aqueous solution into the mixed solution a at 96 ℃, and continuously reacting for 4 hours at 93 ℃ after the dropwise adding is finished to obtain mixed solution b; (3) stopping heating, adding 0.13 part by weight of chain terminator p-tert-butylcatechol into the mixed solution b, uniformly stirring, and cooling to obtain the polycarboxylic acid lubricating grinding aid.
(2) Preparing CdTe quantum dot sol: under the protection of inert gas, adding 0.2 weight part of cadmium nitrate, 80 weight parts of deionized water and 0.15 weight part of 3-sodium mercaptobutyrate into a reactor, stirring and mixing, adding sodium hydroxide to adjust the pH value to 9, adding 0.1 weight part of sodium tellurihydride, stirring and reacting at 90 ℃ for 6 hours to obtain cadmium telluride quantum dot sol;
(3) CdTe quantum dot modified nano anion sol: and (3) under the condition of stirring at normal temperature, dropwise adding 10 parts by weight of the CdTe quantum dot sol in the step (2) into 40 parts by weight of the sol solution A in the step (1), after dropwise adding for 0.5h, continuing to react for 2h to obtain the CdTe quantum dot modified nano anion sol, and placing the CdTe quantum dot modified nano anion sol in a volumetric flask for 30 days without sedimentation.
The preparation method of the unsaturated diester-type film-forming aid comprises the following steps;
(1) taking 2 parts by weight of rosin, heating to soften the rosin, adding the rosin into diethylene glycol with the weight being 12 times of the weight of the rosin, and stirring for 13 minutes at the temperature of 62 ℃ to obtain rosin alcohol solution;
(2) adding 22 parts by weight of tetrabutyl titanate into the rosin alcohol solution, adding 47 parts by weight of water, stirring for 3 hours, adding 28 parts by weight of itaconic acid, raising the temperature to 92 ℃, adding 0.14 part by weight of p-toluenesulfonic acid, keeping the temperature, stirring for 1 hour, and dehydrating to obtain ester sol;
(3) adding the ester sol into dimethyl carbonate accounting for 46-50% of the weight of the ester sol, and uniformly stirring to obtain an ester dispersion liquid;
(4) mixing 12 parts by weight of triethanolamine and 2 parts by weight of ethyl cellulose, adding the mixture into absolute ethyl alcohol of which the weight is 1.9 times that of the mixture, carrying out ultrasonic treatment for 1 hour, distilling to remove the ethyl alcohol, adding 21 parts by weight of stearic acid, uniformly stirring, adding 0.014 part by weight of p-toluenesulfonic acid, raising the temperature to 183 ℃, carrying out stirring reaction for 6 hours, and cooling to the normal temperature to obtain the cellulose ester amine;
(5) mixing the ester dispersion liquid and the cellulose ester amine, stirring uniformly, feeding into a reaction kettle, introducing nitrogen, adjusting the temperature of the reaction kettle to 73 ℃, reacting for 43 hours, discharging and cooling to obtain the product;
the degree of substitution of the ethyl cellulose is 2.4;
the latex paint based on CdTe quantum dot modified nanometer anion sol in the embodiment is prepared by the following method:
sequentially adding CdTe quantum dot modified nano negative ion sol, water, non-ionic high-molecular water-based dispersing agent, AP-95 multifunctional additive, unsaturated diester type film-forming additive and propylene glycol into a dispersion cylinder, keeping a dispersion machine to rotate at 400rpm, fully dispersing for 30min, then enabling the center of a dispersion disc to be close to the bottom of a reaction kettle, increasing the rotating speed to 800rpmrpm, and adding titanium dioxide into the dispersion cylinder to disperse for 1 h; reducing the rotating speed to 600rpmrp, adding the silicone-acrylic emulsion, the modified cellulose thickener and the acetylene glycol defoamer, dispersing and dispersing for 1h, and filtering by using a filter screen of 800 meshes to obtain a white finished product.
The emulsion paint based on CdTe quantum dot modified nanometer anion sol and anion release type white interior wall emulsion finish paint (comparative example) of Fujian brand of the embodiment of the invention are applied to a wall surface under the same condition, and the detection is carried out under the same condition, and the test data is shown in the following table:
while the invention has been described in detail and with reference to specific embodiments thereof, it will be apparent to one skilled in the art that various changes, modifications and variations can be made therein without departing from the spirit and scope of the invention as defined in the following claims.
Claims (4)
1. The emulsion paint based on the CdTe quantum dot modified nanometer negative ion sol is characterized by comprising the following components in parts by weight: 25-80 parts of CdTe quantum dot modified nano anion sol, 350 parts of water 250-one additive, 3-5 parts of wetting dispersant, 1-3 parts of defoaming agent, 0.5-1 part of AP-95 multifunctional additive, 5-10 parts of unsaturated diester type film-forming additive, 5-10 parts of propylene glycol, 2-3 parts of thickening agent and 80-250 parts of silicone-acrylate emulsion;
the CdTe quantum dot modified nanometer negative ion sol is prepared by the following method:
(1) preparing porous nanometer anion sol with an active core-shell structure: firstly, preparing 10-20 mass percent of natural negative ion powder aqueous dispersion, then adding the natural negative ion powder aqueous dispersion and grinding aid accounting for 0.1-0.3 percent of the total weight of the natural negative ion powder aqueous dispersion into a nano grinder to grind the natural negative ion powder aqueous dispersion to the median particle size (d) of the powder50) Discharging to obtain nanometer negative ion powder dispersion liquid with particle size less than 100 nm; taking 50 parts by weight of nano-scale negative ionsAdding the powder dispersion and 10-20 parts by weight of 0.6-1.2mol/L strong base solution into a reactor, heating to 80-95 ℃ for reaction for 6-12h, then cooling, filtering to remove solid or large-particle-size anion powder, fully dialyzing to remove strong base and adjusting the pH to 8-9, and obtaining the dispersion taking porous nano anion powder as suspended matter, namely the porous nano anion sol; adding 20 parts by weight of ethanol solution of titanate coupling agent with the mass fraction of 3-5% into a reactor, dropwise adding 20-25 parts by weight of porous nano anion sol while stirring, and continuously stirring for reaction for 1-2 hours after dropwise adding is finished for 1-2 hours to obtain sol solution A taking active nano titanium dioxide as a shell and porous nano anion powder as a core;
(2) preparing CdTe quantum dot sol: under the protection of inert gas, adding 0.2-0.3 part by weight of cadmium nitrate, 80-90 parts by weight of deionized water and 0.1-0.2 part by weight of stabilizer into a reactor, stirring and mixing, adding strong base to adjust the pH to 8-9, adding 0.1-0.2 part by weight of sodium telluride, stirring and reacting at 90-95 ℃ for 3-6h to obtain cadmium telluride quantum dot sol;
(3) CdTe quantum dot modified nano anion sol: under the condition of normal temperature stirring, dropwise adding 10-20 parts by weight of cadmium telluride quantum dot sol in the step (2) into 40-45 parts by weight of the sol solution A in the step (1), after dropwise adding for 0.5-1h, continuously reacting for 2-4h to obtain CdTe quantum dot modified nanometer anion sol;
the preparation method of the unsaturated diester-type film-forming aid comprises the following steps;
(1) heating and softening 2-3 parts by weight of rosin, adding the rosin into diethylene glycol with the weight 10-16 times of the weight of the rosin, and stirring for 10-20 minutes at the temperature of 60-65 ℃ to obtain rosin alcohol solution;
(2) adding 20-25 parts by weight of tetrabutyl titanate into the rosin alcohol solution, adding 45-50 parts by weight of water, stirring for 3-4 hours, adding 25-30 parts by weight of itaconic acid, raising the temperature to 90-96 ℃, adding 0.1-0.2 part by weight of p-toluenesulfonic acid, keeping the temperature, stirring for 1-2 hours, and dehydrating to obtain ester sol;
(3) adding the ester sol into dimethyl carbonate accounting for 46-50% of the weight of the ester sol, and uniformly stirring to obtain an ester dispersion liquid;
(4) mixing 10-14 parts by weight of triethanolamine and 2-3 parts by weight of ethyl cellulose, adding the mixture into absolute ethyl alcohol of which the weight is 1.8-2 times that of the mixture, carrying out ultrasonic treatment for 1-2 hours, distilling to remove the ethyl alcohol, adding 20-22 parts by weight of stearic acid, uniformly stirring, adding 0.01-0.02 part by weight of p-toluenesulfonic acid, raising the temperature to 180 ℃ and 185 ℃, carrying out stirring reaction for 6-7 hours, and cooling to normal temperature to obtain the cellulose ester amine;
(5) mixing the ester dispersion liquid and the cellulose ester amine, stirring uniformly, feeding into a reaction kettle, introducing nitrogen, adjusting the temperature of the reaction kettle to 70-76 ℃, reacting for 40-46 hours, discharging and cooling to obtain the product;
the degree of substitution of the ethyl cellulose is 2.3-2.5;
the thickening agent is at least one of a modified cellulose thickening agent, a hydrophobic modified alkali swelling acrylic acid thickening agent, an associated polyurethane thickening agent and a modified bentonite thickening agent;
the grinding aid is a polycarboxylic acid lubricating grinding aid; the strong base is at least one of sodium hydroxide, potassium hydroxide and barium hydroxide;
the polycarboxylic acid lubricating grinding aid has the following structure:
the preparation method comprises the following steps: (1) mixing 10-20 parts by weight of sodium acrylate, 5-10 parts by weight of pentaerythritol monoacrylate and 50-100 parts by weight of deionized water under stirring, and heating to 90-100 ℃ to obtain a mixed solution a; (2) dropwise adding 3-5 parts by weight of 4-5% ammonium persulfate aqueous solution into the mixed solution a at 90-100 ℃, and continuing to react for 3-5h at 90-100 ℃ after the dropwise addition is finished to obtain mixed solution b; (3) stopping heating, adding 0.1-0.2 part by weight of chain terminator p-tert-butylcatechol into the mixed solution b, uniformly stirring, and cooling to obtain the polycarboxylic acid lubricating grinding aid;
the emulsion paint based on CdTe quantum dot modified nanometer anion sol is prepared by the following steps:
sequentially adding CdTe quantum dot modified nano anion sol, water, wetting dispersant, AP-95 multifunctional additive, unsaturated diester type film-forming additive and propylene glycol into a dispersion cylinder, keeping a dispersion machine to rotate at 400-600 rpm, fully dispersing for 20-30min, then enabling the center of a dispersion disc to be close to the bottom of a reaction kettle, increasing the rotating speed to 800-1200 rpm, adding silicone-acrylic emulsion, thickener and defoamer, dispersing for 0.5-1h, and filtering by using a filter screen with 800 meshes to obtain a white finished product.
2. The latex paint based on CdTe quantum dot modified nano anion sol of claim 1, wherein the wetting dispersant is at least one of polycarboxylic acid type anion dispersant, organosilicon aqueous dispersant and non-ionic polymer aqueous dispersant; the defoaming agent is at least one of organic silicon defoaming agent, polyacrylic acid defoaming agent, phosphate ester defoaming agent, silane polyether defoaming agent and acetylene glycol defoaming agent.
3. The latex paint based on CdTe quantum dot modified nano negative ion sol of claim 1, wherein the titanate coupling agent is at least one of tetrabutyl titanate, tetraethyl titanate and tetrapropyl titanate.
4. The latex paint based on CdTe quantum dot modified nano negative ion sol of claim 1, wherein the stabilizer is at least one of sodium thioglycolate, sodium 3-mercaptopropionate, potassium 3-thioglycolate, potassium 3-mercaptobutyrate and sodium 3-mercaptobutyrate.
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