CN116554740A - Negative oxygen ion inorganic paint with antibacterial, antiviral, bactericidal and virucidal functions and preparation method thereof - Google Patents
Negative oxygen ion inorganic paint with antibacterial, antiviral, bactericidal and virucidal functions and preparation method thereof Download PDFInfo
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- CN116554740A CN116554740A CN202310599698.2A CN202310599698A CN116554740A CN 116554740 A CN116554740 A CN 116554740A CN 202310599698 A CN202310599698 A CN 202310599698A CN 116554740 A CN116554740 A CN 116554740A
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- negative oxygen
- oxygen ion
- inorganic
- coating
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- 229910052760 oxygen Inorganic materials 0.000 title claims abstract description 101
- 239000001301 oxygen Substances 0.000 title claims abstract description 101
- 239000003973 paint Substances 0.000 title claims abstract description 46
- 230000000844 anti-bacterial effect Effects 0.000 title claims abstract description 33
- 230000006870 function Effects 0.000 title claims abstract description 28
- 230000000840 anti-viral effect Effects 0.000 title claims abstract description 17
- 230000003253 viricidal effect Effects 0.000 title claims abstract description 16
- 238000002360 preparation method Methods 0.000 title abstract description 13
- -1 oxygen ion Chemical class 0.000 claims abstract description 101
- 238000000576 coating method Methods 0.000 claims abstract description 99
- 239000011248 coating agent Substances 0.000 claims abstract description 94
- 239000000843 powder Substances 0.000 claims abstract description 64
- 239000002131 composite material Substances 0.000 claims abstract description 47
- 239000000839 emulsion Substances 0.000 claims abstract description 45
- 229910052500 inorganic mineral Inorganic materials 0.000 claims abstract description 45
- 239000011707 mineral Substances 0.000 claims abstract description 43
- 239000000945 filler Substances 0.000 claims abstract description 32
- 241000700605 Viruses Species 0.000 claims abstract description 27
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 23
- 238000000034 method Methods 0.000 claims abstract description 19
- 241000894006 Bacteria Species 0.000 claims abstract description 18
- 230000002147 killing effect Effects 0.000 claims abstract description 10
- 230000001954 sterilising effect Effects 0.000 claims abstract description 10
- 239000002270 dispersing agent Substances 0.000 claims abstract description 9
- 239000000080 wetting agent Substances 0.000 claims abstract description 9
- 239000004354 Hydroxyethyl cellulose Substances 0.000 claims abstract description 7
- 229920000663 Hydroxyethyl cellulose Polymers 0.000 claims abstract description 7
- 235000019447 hydroxyethyl cellulose Nutrition 0.000 claims abstract description 7
- 239000000049 pigment Substances 0.000 claims abstract description 7
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 6
- NNHHDJVEYQHLHG-UHFFFAOYSA-N potassium silicate Chemical compound [K+].[K+].[O-][Si]([O-])=O NNHHDJVEYQHLHG-UHFFFAOYSA-N 0.000 claims description 54
- 239000004111 Potassium silicate Substances 0.000 claims description 53
- 229910052913 potassium silicate Inorganic materials 0.000 claims description 53
- 235000019353 potassium silicate Nutrition 0.000 claims description 53
- RMAQACBXLXPBSY-UHFFFAOYSA-N silicic acid Chemical compound O[Si](O)(O)O RMAQACBXLXPBSY-UHFFFAOYSA-N 0.000 claims description 47
- 239000011575 calcium Substances 0.000 claims description 22
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 claims description 21
- 229910052791 calcium Inorganic materials 0.000 claims description 21
- 239000013530 defoamer Substances 0.000 claims description 13
- 229910001404 rare earth metal oxide Inorganic materials 0.000 claims description 12
- 239000000203 mixture Substances 0.000 claims description 11
- 229910052613 tourmaline Inorganic materials 0.000 claims description 11
- 239000011032 tourmaline Substances 0.000 claims description 11
- 229940070527 tourmaline Drugs 0.000 claims description 11
- 238000003756 stirring Methods 0.000 claims description 9
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 8
- TZCXTZWJZNENPQ-UHFFFAOYSA-L barium sulfate Chemical compound [Ba+2].[O-]S([O-])(=O)=O TZCXTZWJZNENPQ-UHFFFAOYSA-L 0.000 claims description 8
- 229920001909 styrene-acrylic polymer Polymers 0.000 claims description 8
- BRPQOXSCLDDYGP-UHFFFAOYSA-N calcium oxide Chemical compound [O-2].[Ca+2] BRPQOXSCLDDYGP-UHFFFAOYSA-N 0.000 claims description 7
- 239000000292 calcium oxide Substances 0.000 claims description 7
- ODINCKMPIJJUCX-UHFFFAOYSA-N calcium oxide Inorganic materials [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 claims description 7
- 239000010445 mica Substances 0.000 claims description 7
- 229910052618 mica group Inorganic materials 0.000 claims description 7
- 239000005995 Aluminium silicate Substances 0.000 claims description 6
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 claims description 6
- 235000012211 aluminium silicate Nutrition 0.000 claims description 6
- 239000010433 feldspar Substances 0.000 claims description 6
- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 claims description 6
- 239000010456 wollastonite Substances 0.000 claims description 6
- 229910052882 wollastonite Inorganic materials 0.000 claims description 6
- 239000002245 particle Substances 0.000 claims description 5
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical group O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims description 4
- 238000002156 mixing Methods 0.000 claims description 4
- 239000008367 deionised water Substances 0.000 claims description 3
- 229910021641 deionized water Inorganic materials 0.000 claims description 3
- 238000001914 filtration Methods 0.000 claims description 3
- 125000000373 fatty alcohol group Chemical group 0.000 claims description 2
- 239000002480 mineral oil Substances 0.000 claims description 2
- 235000010446 mineral oil Nutrition 0.000 claims description 2
- 229920000058 polyacrylate Polymers 0.000 claims description 2
- 229940051841 polyoxyethylene ether Drugs 0.000 claims description 2
- 229920000056 polyoxyethylene ether Polymers 0.000 claims description 2
- ZLMJMSJWJFRBEC-OUBTZVSYSA-N potassium-40 Chemical group [40K] ZLMJMSJWJFRBEC-OUBTZVSYSA-N 0.000 claims description 2
- 239000004408 titanium dioxide Substances 0.000 claims 1
- 230000002829 reductive effect Effects 0.000 abstract description 29
- 230000008901 benefit Effects 0.000 abstract description 17
- 230000000694 effects Effects 0.000 abstract description 17
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 abstract description 12
- 239000007788 liquid Substances 0.000 abstract description 12
- 230000008569 process Effects 0.000 abstract description 8
- 230000006378 damage Effects 0.000 abstract description 6
- 238000001879 gelation Methods 0.000 abstract description 6
- 238000003860 storage Methods 0.000 abstract description 6
- 230000008719 thickening Effects 0.000 abstract description 6
- 229910001385 heavy metal Inorganic materials 0.000 abstract description 5
- 238000007711 solidification Methods 0.000 abstract description 4
- 230000008023 solidification Effects 0.000 abstract description 4
- 238000005260 corrosion Methods 0.000 abstract description 3
- 239000002518 antifoaming agent Substances 0.000 abstract description 2
- 230000000052 comparative effect Effects 0.000 description 14
- 238000001514 detection method Methods 0.000 description 10
- 239000000463 material Substances 0.000 description 9
- 239000000654 additive Substances 0.000 description 7
- 239000011230 binding agent Substances 0.000 description 7
- 238000013329 compounding Methods 0.000 description 7
- 229910021645 metal ion Inorganic materials 0.000 description 6
- 239000000047 product Substances 0.000 description 6
- 230000000996 additive effect Effects 0.000 description 5
- 229920000642 polymer Polymers 0.000 description 5
- 229910052761 rare earth metal Inorganic materials 0.000 description 5
- 150000002910 rare earth metals Chemical class 0.000 description 5
- 230000002195 synergetic effect Effects 0.000 description 5
- 239000012855 volatile organic compound Substances 0.000 description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 239000000853 adhesive Substances 0.000 description 4
- 230000001070 adhesive effect Effects 0.000 description 4
- 150000001875 compounds Chemical class 0.000 description 4
- 239000013078 crystal Substances 0.000 description 4
- 238000004090 dissolution Methods 0.000 description 4
- 239000011777 magnesium Substances 0.000 description 4
- 239000003755 preservative agent Substances 0.000 description 4
- 230000002335 preservative effect Effects 0.000 description 4
- 150000003839 salts Chemical class 0.000 description 4
- 238000012360 testing method Methods 0.000 description 4
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 3
- 229910052684 Cerium Inorganic materials 0.000 description 3
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 3
- GWXLDORMOJMVQZ-UHFFFAOYSA-N cerium Chemical compound [Ce] GWXLDORMOJMVQZ-UHFFFAOYSA-N 0.000 description 3
- IKNAJTLCCWPIQD-UHFFFAOYSA-K cerium(3+);lanthanum(3+);neodymium(3+);oxygen(2-);phosphate Chemical compound [O-2].[La+3].[Ce+3].[Nd+3].[O-]P([O-])([O-])=O IKNAJTLCCWPIQD-UHFFFAOYSA-K 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 3
- 230000007547 defect Effects 0.000 description 3
- 230000036541 health Effects 0.000 description 3
- 239000011256 inorganic filler Substances 0.000 description 3
- 229910003475 inorganic filler Inorganic materials 0.000 description 3
- 230000007774 longterm Effects 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 229910052590 monazite Inorganic materials 0.000 description 3
- 230000002285 radioactive effect Effects 0.000 description 3
- 238000005185 salting out Methods 0.000 description 3
- 239000004575 stone Substances 0.000 description 3
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 2
- YNQLUTRBYVCPMQ-UHFFFAOYSA-N Ethylbenzene Chemical compound CCC1=CC=CC=C1 YNQLUTRBYVCPMQ-UHFFFAOYSA-N 0.000 description 2
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 2
- 229910021536 Zeolite Inorganic materials 0.000 description 2
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 2
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 239000003513 alkali Substances 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 230000008033 biological extinction Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 239000003153 chemical reaction reagent Substances 0.000 description 2
- 239000008199 coating composition Substances 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000005336 cracking Methods 0.000 description 2
- 238000005034 decoration Methods 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 description 2
- 230000008124 floral development Effects 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 229910052746 lanthanum Inorganic materials 0.000 description 2
- FZLIPJUXYLNCLC-UHFFFAOYSA-N lanthanum atom Chemical compound [La] FZLIPJUXYLNCLC-UHFFFAOYSA-N 0.000 description 2
- 239000004816 latex Substances 0.000 description 2
- 229920000126 latex Polymers 0.000 description 2
- 229910052749 magnesium Inorganic materials 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 244000005700 microbiome Species 0.000 description 2
- CHWRSCGUEQEHOH-UHFFFAOYSA-N potassium oxide Chemical compound [O-2].[K+].[K+] CHWRSCGUEQEHOH-UHFFFAOYSA-N 0.000 description 2
- 229910001950 potassium oxide Inorganic materials 0.000 description 2
- 238000010298 pulverizing process Methods 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- 239000000941 radioactive substance Substances 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 230000009257 reactivity Effects 0.000 description 2
- 238000005201 scrubbing Methods 0.000 description 2
- 239000000758 substrate Substances 0.000 description 2
- 235000010215 titanium dioxide Nutrition 0.000 description 2
- 229910052727 yttrium Inorganic materials 0.000 description 2
- VWQVUPCCIRVNHF-UHFFFAOYSA-N yttrium atom Chemical compound [Y] VWQVUPCCIRVNHF-UHFFFAOYSA-N 0.000 description 2
- 239000010457 zeolite Substances 0.000 description 2
- 239000011701 zinc Substances 0.000 description 2
- 229910052725 zinc Inorganic materials 0.000 description 2
- ZSLUVFAKFWKJRC-IGMARMGPSA-N 232Th Chemical compound [232Th] ZSLUVFAKFWKJRC-IGMARMGPSA-N 0.000 description 1
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 description 1
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 1
- 239000004908 Emulsion polymer Substances 0.000 description 1
- 241000588724 Escherichia coli Species 0.000 description 1
- 229910052688 Gadolinium Inorganic materials 0.000 description 1
- 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 1
- 241000134304 Influenza A virus H3N2 Species 0.000 description 1
- 241000588747 Klebsiella pneumoniae Species 0.000 description 1
- 229910000858 La alloy Inorganic materials 0.000 description 1
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- JLVVSXFLKOJNIY-UHFFFAOYSA-N Magnesium ion Chemical compound [Mg+2] JLVVSXFLKOJNIY-UHFFFAOYSA-N 0.000 description 1
- 229910052779 Neodymium Inorganic materials 0.000 description 1
- CTQNGGLPUBDAKN-UHFFFAOYSA-N O-Xylene Chemical compound CC1=CC=CC=C1C CTQNGGLPUBDAKN-UHFFFAOYSA-N 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 1
- 229910052777 Praseodymium Inorganic materials 0.000 description 1
- 241000589517 Pseudomonas aeruginosa Species 0.000 description 1
- 229910052772 Samarium Inorganic materials 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 241000191967 Staphylococcus aureus Species 0.000 description 1
- 229910052776 Thorium Inorganic materials 0.000 description 1
- 235000011941 Tilia x europaea Nutrition 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- QCWXUUIWCKQGHC-UHFFFAOYSA-N Zirconium Chemical compound [Zr] QCWXUUIWCKQGHC-UHFFFAOYSA-N 0.000 description 1
- 229910001297 Zn alloy Inorganic materials 0.000 description 1
- LBCKSWGAAWVFNR-UHFFFAOYSA-N [Ce].[La].[Ca] Chemical compound [Ce].[La].[Ca] LBCKSWGAAWVFNR-UHFFFAOYSA-N 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 229910052910 alkali metal silicate Inorganic materials 0.000 description 1
- 239000012752 auxiliary agent Substances 0.000 description 1
- 239000010428 baryte Substances 0.000 description 1
- 229910052601 baryte Inorganic materials 0.000 description 1
- 239000002585 base Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910052796 boron Inorganic materials 0.000 description 1
- 230000001680 brushing effect Effects 0.000 description 1
- 229910000019 calcium carbonate Inorganic materials 0.000 description 1
- 229920003086 cellulose ether Polymers 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000012790 confirmation Methods 0.000 description 1
- VANPZBANAIIRJW-UHFFFAOYSA-N diuranium Chemical compound [U]#[U] VANPZBANAIIRJW-UHFFFAOYSA-N 0.000 description 1
- 239000010459 dolomite Substances 0.000 description 1
- 229910000514 dolomite Inorganic materials 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 239000003792 electrolyte Substances 0.000 description 1
- 238000011049 filling Methods 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- UIWYJDYFSGRHKR-UHFFFAOYSA-N gadolinium atom Chemical compound [Gd] UIWYJDYFSGRHKR-UHFFFAOYSA-N 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 125000004435 hydrogen atom Chemical group [H]* 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000004571 lime Substances 0.000 description 1
- 230000000670 limiting effect Effects 0.000 description 1
- 229910052744 lithium Inorganic materials 0.000 description 1
- 229910001425 magnesium ion Inorganic materials 0.000 description 1
- WSFSSNUMVMOOMR-NJFSPNSNSA-N methanone Chemical compound O=[14CH2] WSFSSNUMVMOOMR-NJFSPNSNSA-N 0.000 description 1
- QEFYFXOXNSNQGX-UHFFFAOYSA-N neodymium atom Chemical compound [Nd] QEFYFXOXNSNQGX-UHFFFAOYSA-N 0.000 description 1
- 230000008520 organization Effects 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 229910052700 potassium Inorganic materials 0.000 description 1
- 239000011591 potassium Substances 0.000 description 1
- PUDIUYLPXJFUGB-UHFFFAOYSA-N praseodymium atom Chemical compound [Pr] PUDIUYLPXJFUGB-UHFFFAOYSA-N 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 239000012857 radioactive material Substances 0.000 description 1
- 230000002441 reversible effect Effects 0.000 description 1
- KZUNJOHGWZRPMI-UHFFFAOYSA-N samarium atom Chemical compound [Sm] KZUNJOHGWZRPMI-UHFFFAOYSA-N 0.000 description 1
- 229910052604 silicate mineral Inorganic materials 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 241000894007 species Species 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- 239000002562 thickening agent Substances 0.000 description 1
- XEIRTJPYRLBENS-UHFFFAOYSA-N thorium Chemical compound [Th].[Th] XEIRTJPYRLBENS-UHFFFAOYSA-N 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- 239000008096 xylene Substances 0.000 description 1
- 239000011787 zinc oxide Substances 0.000 description 1
- 229910052726 zirconium Inorganic materials 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/30—Against vector-borne diseases, e.g. mosquito-borne, fly-borne, tick-borne or waterborne diseases whose impact is exacerbated by climate change
Abstract
The invention provides a negative oxygen ion inorganic coating with antibacterial, antiviral, bactericidal and virucidal functions and a preparation method thereof; the coating comprises the following components in parts by weight: 400-500 parts of water; 1-5 parts of dispersing agent; 1-5 parts of defoaming agent; 1-5 parts of wetting agent; 1-10 parts of hydroxyethyl cellulose; 100-150 parts of pigment and filler; 1-5 parts of anti-settling agent; 250-350 parts of inorganic composite filler; 1-10 parts of synthetic negative oxygen ion mineral powder; 100-150 parts of inorganic composite emulsion. The coating meets the standard requirements of liquid inorganic coatings; the coating can release negative oxygen ions continuously, and has the functions of resisting bacteria and viruses, sterilizing and killing viruses; the environment-friendly water-based paint has the advantages of no harm, zero heavy metal, zero formaldehyde and zero VOC release, low radioactivity, good anti-corrosion effect and the like, and is safer and more environment-friendly; the gelation problem is not easy to occur in the preparation process, and the thickening and solidification probability of the paint in the use and storage processes is obviously reduced.
Description
Technical Field
The invention relates to the technical field of inorganic coatings, in particular to a negative oxygen ion inorganic coating with antibacterial, antiviral, bactericidal and virucidal functions and a preparation method thereof.
Background
The inorganic paint is a water-based liquid paint prepared by using alkali metal silicate, silica sol and the like as main binders, adding a small amount of polymer organic matters and pigments, fillers and auxiliaries, wherein the mass of the polymer organic matters decomposed between 250-500 ℃ in the liquid inorganic paint for the inner wall accounts for less than or equal to 5 percent (W/W%) of the mass of the liquid inorganic paint.
Those skilled in the art know: the negative oxygen ions in the air are negatively charged air particles, and the quantity of the negative oxygen ions in the air is one of marks for measuring the freshness of the air; wherein, according to the confirmation of the world health organization, the negative oxygen ions in the air are 1000-1500 per cm 3 And is considered to be fresh air, which is a basic need to maintain health.
The negative oxygen ion paint capable of releasing negative oxygen ions into air is a liquid viscous paint for the wall surface of the building indoor wall, can permanently release the ecological air negative oxygen ions with small particle size, has the effects of removing formaldehyde, removing smoke smell, purifying air and the like, and is beneficial to human health.
However, the existing commercial negative oxygen ion inorganic paint, although called inorganic paint, still has the problem that the mass proportion of decomposed polymer organic matters to the mass of liquid inorganic paint between 250 and 500 ℃ is more than 5 percent (W/W percent), so that the total volatile organic matters (TVOC) is high when the paint is used, and the total volatile organic matters do not reach the standard of inorganic paint (liquid) specified by the state building department; for example, chinese patent application with application number CN201810012030.2 and publication date 2019, 11 and 22 discloses an aqueous forest negative oxygen ion inorganic coating and a preparation method thereof, which have the problem that the mass ratio of polymer organic matters to the mass of liquid inorganic coating is greater than 5% (W/W%).
In addition, most of the existing negative oxygen ion inorganic coatings have the problem of exceeding radioactivity due to the addition of the radioactive negative oxygen ion additive.
Therefore, how to develop an inorganic coating with stable release function of negative oxygen ions, antibacterial, antiviral, sterilizing and virus killing functions, and the coating has the advantages of no harm, zero release of heavy metals, zero release of formaldehyde and VOC, low radioactivity and the like, and simultaneously keeps the performances of good moldability, good cohesiveness, good stability and the like required by the coating, which is the problem to be solved in the field.
Disclosure of Invention
In order to solve the defects of the prior art mentioned in the background art, the invention provides a negative oxygen ion inorganic coating with the functions of resisting bacteria, viruses, bacteria and viruses, and the technical scheme is as follows:
the negative oxygen ion inorganic coating with the functions of resisting bacteria, resisting viruses, sterilizing and killing viruses comprises the following components in parts by weight:
the inorganic composite filler comprises the components of heavy calcium, diatomite, kaolin, mica powder, feldspar powder and wollastonite; the components of the inorganic composite emulsion comprise silica sol, potassium silicate and inorganic special emulsion; the components of the synthesized negative oxygen ion mineral powder comprise tourmaline light powder, rare earth oxide, heavy rare earth oxide, barite powder, silicate and calcium oxide.
Preferably, the inorganic composite filler comprises the following components in parts by weight: 50 to 100 parts of heavy calcium powder, 5 to 10 parts of diatomite, 5 to 10 parts of kaolin, 1 to 5 parts of mica powder, 1 to 5 parts of feldspar powder and 1 to 5 parts of wollastonite.
Preferably, the inorganic composite emulsion comprises the following components in parts by weight: 10-30 parts of silica sol, 10-30 parts of potassium silicate and 40-70 parts of inorganic special emulsion. Among them, it may be preferable that the silica sol is a surface-treated highly stabilized silica sol.
Preferably, the synthetic negative oxygen ion mineral powder comprises the following components in parts by weight: 390 to 400 parts of tourmaline light powder, 200 to 210 parts of rare earth oxide, 40 to 50 parts of rare earth oxide, 90 to 100 parts of barite powder, 140 to 150 parts of silicate and 40 to 50 parts of calcium oxide.
Preferably, the water is deionized water; the dispersing agent is polyacrylate dispersing agent; the defoamer is mineral oil defoamer.
Preferably, the heavy calcium is high purity heavy calcium with a purity of 80% or more.
Preferably, the particle size of the synthetic negative oxygen ion mineral powder is 3000-5000 meshes.
Preferably, the PH of the negative oxygen ion inorganic coating is greater than or equal to 11.
Preferably, the wetting agent is fatty alcohol polyoxyethylene ether wetting agent; the pigment and filler is titanium white, and the inorganic special emulsion is styrene-acrylic emulsion or silicone-acrylic emulsion.
The invention also provides a preparation method of the negative oxygen ion inorganic coating with the antibacterial, antiviral, bactericidal and virucidal functions, which comprises the following steps:
uniformly mixing water, a dispersing agent, a wetting agent, pigment and filler, synthetic negative oxygen ion mineral powder, inorganic composite filler, hydroxyethyl cellulose and a part of defoamer according to a certain weight ratio under a stirring state, and continuously stirring until the mixture is uniform to obtain a mixture M;
adding an anti-settling agent, inorganic composite emulsion and the rest defoamer into the mixture M, uniformly stirring, and filtering to obtain a finished product.
Compared with the prior art, the negative oxygen ion inorganic coating with the functions of resisting bacteria, resisting viruses, sterilizing and killing viruses has the following advantages:
the negative oxygen ion inorganic paint meets the requirements of standard liquid inorganic paint of modification manuscripts issued by the residences of the people's republic of China and urban and rural construction departments (liquid inorganic paint for inner and outer walls of buildings);
the negative oxygen ion inorganic coating meets the radionuclide A standard of indoor decoration materials, and the formed coating can naturally and continuously release negative oxygen ions and has the functions of resisting bacteria, viruses, bacteria and viruses in the use environment; meanwhile, the environment-friendly water-based paint has the advantages of no harm, zero heavy metal, zero formaldehyde and zero VOC release, low radioactivity, good anti-corrosion effect without adding preservative, and the like, and is safer and more environment-friendly;
the negative oxygen ion inorganic paint has good stability, is not easy to generate gelation problem in the preparation process, and obviously reduces the probability of thickening and solidifying the paint in the use and storage processes.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions in the embodiments of the present invention will be clearly and completely described in the following in conjunction with the embodiments of the present invention, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
The invention also provides the following examples and comparative examples:
1. the reagents used in the examples and comparative examples of the present invention were specifically selected as follows:
water: deionized water;
dispersing agent: CROSFET-3500;
defoaming agent: AF-10;
wetting agent: DA202;
hydroxyethyl cellulose HS100000YP2;
titanium white: r-699;
anti-settling agent: AS200;
heavy calcium: high purity heavy calcium with purity over 80%;
silica sol: ES309;
potassium silicate: CROSFECT-K99A
Inorganic special emulsion: 5588 styrene-acrylic emulsion;
the composite negative oxygen ion mineral powder 1 (namely the synthetic negative oxygen ion mineral powder in table 2) is prepared from 400 parts of tourmaline light powder, 200 parts of rare earth oxide, 50 parts of heavy rare earth oxide, 100 parts of barite powder, 150 parts of silicate and 50 parts of calcium oxide according to parts by weight, wherein the mesh number is 4000 meshes; the elemental composition is shown in table 1:
TABLE 1
| Element(s) | Content of | Element(s) | Content of | Element(s) | Content of |
| Magnesium (Mg) | 6.34％ | Aluminum (Al) | 1.58％ | Silicon (Si) | 3.47％ |
| Phosphorus (P) | 3.92％ | Potassium | 0.13％ | Calcium | 16.01％ |
| Titanium | 0.18％ | Iron (Fe) | 0.84％ | Zinc alloy | 0.22％ |
| Yttrium | 2.16％ | Lanthanum, lanthanum alloy | 16.56％ | Cerium (Ce) | 26.98％ |
| Praseodymium (Pr) | 2.29％ | Neodymium | 9.03％ | Samarium | 1.60％ |
| Thorium (thorium) | 5.49％ | Uranium (uranium) | 0.56％ | Zirconium | 1.79％ |
| Gadolinium (Gd) | 0.86％ | - | - | - | - |
It should be noted that, in the examples, specific techniques or conditions are not noted, and the reagents or apparatuses used according to techniques or conditions described in the literature in this field or according to the specifications of the products are conventional products available commercially without being noted to manufacturers.
2. The preparation process of the specific examples and comparative examples is as follows:
2.1 coating formulations of examples and comparative examples are shown in table 2 below:
TABLE 2
Wherein, the weight portions are as follows:
the inorganic composite filler 1 consists of 80 parts of heavy calcium, 10 parts of diatomite, 5 parts of kaolin, 3 parts of mica powder, 1 part of feldspar powder and 1 part of wollastonite;
the inorganic composite emulsion 1 consists of silica sol 20 parts, potassium silicate 10 parts and styrene-acrylic emulsion 70 parts;
the negative oxygen ion additive consists of monazite, zeolite, medical stone and tourmaline according to the weight proportion;
the inorganic filler 2 consists of heavy calcium carbonate;
the inorganic filler 3 consists of 80 parts of heavy calcium and 10 parts of diatomite;
the composite emulsion 2 consists of 30 parts of silica sol and 70 parts of styrene-acrylic emulsion (without potassium silicate);
the composite emulsion 3 consists of 30 parts of potassium silicate and 70 parts of styrene-acrylic emulsion (without silica sol);
the composite emulsion 4 consists of 27 parts of silica sol, 3 parts of potassium silicate and 70 parts of styrene-acrylic emulsion (the proportion of the silica sol to the potassium silicate is beyond a limited range, the silica sol is more and the potassium silicate is less);
the composite emulsion 5 consists of 5 parts of silica sol, 35 parts of potassium silicate and 60 parts of styrene-acrylic emulsion (the proportion of the silica sol to the potassium silicate is lower than a limited range, the silica sol is less, and the potassium silicate is more).
2.2 the procedure for the preparation of examples and comparative examples is as follows:
uniformly mixing water, a dispersing agent, a wetting agent, pigment and filler, synthetic negative oxygen ion mineral powder, inorganic composite filler and hydroxyethyl cellulose with a part of defoamer according to a certain weight ratio under a stirring state, and continuously stirring at a high speed for 20 min until the materials are uniform to obtain a mixture M;
adding an anti-settling agent, inorganic composite emulsion and the rest defoamer into the mixture M, uniformly stirring, and filtering to obtain a finished product. Wherein the weight ratio of the defoamer added in the first step to the defoamer added in the second step is 2:1.
3. For the products of the above examples and comparative examples, the test results are shown in table 3 below:
TABLE 3 Table 3
Note that: in the table "-" indicates no detection result;
in Table 3, the criteria for the test items are:
and (3) detecting the organic content of the polymer: detecting according to the method of annex A of liquid inorganic paint (revised manuscript) of the inner wall and the outer wall of a building;
mould resistance detection GB/T1741-2007;
combustion performance detection: GB 8624-2012;
volatile Organic Compound (VOC) content detection: GB/T23986;
free formaldehyde content detection: GB/T34683;
benzene, toluene, ethylbenzene, xylene content detection: GB/T23990;
and (3) detecting the content of soluble heavy metals: GB/T23991;
radioactivity detection: GB 6566-2010;
negative oxygen ion air concentration detection: JC/T2110 (1 square brush 250m l paint);
and (3) antibacterial and bactericidal performance detection: HG/T3950-2007 (experimental species: staphylococcus aureus, klebsiella pneumoniae, pseudomonas aeruginosa, escherichia coli);
antiviral and virucidal performance detection: T/CNC IA01014-2020 (experimental virus: influenza A virus H3N 2); adhesion (measure its adhesion and strength): the cross-cut adhesion test was performed according to I SO 2409, and the results of all coatings should be 100% adhesion, reaching level 0 in the standard;
scrub resistance: scrub resistance (> how many scrubs) was measured according to ASTM test method D2486-74A.
4. Analysis of test results for examples and comparative examples:
(1) Comparative example 1 differs from example 1 only in that: the existing negative oxygen ion additive is adopted to replace the synthetic negative oxygen ion mineral powder, so that the radioactivity of the composite negative oxygen ion mineral powder is enhanced, and the apparent appearance of the coating is poor compared with the embodiment.
(2) Comparative example 2 differs from example 1 only in that: the heavy calcium is adopted to replace the inorganic composite filler 1 of the embodiment, and compared with the embodiment, the heavy calcium has serious gelation, large coating consistency (poor stability) and poor film forming effect in the preparation process.
(3) Comparative example 3 differs from example 1 only in that: the inorganic filler 2 combined by heavy calcium and diatomite is adopted to replace the inorganic composite filler 1 in the embodiment, and compared with the embodiment, the inorganic composite filler has the advantages of serious gelation, large coating consistency (poor stability) and poor film forming effect in the preparation process.
(4) Comparative example 4 differs from example 1 only in that: the silica sol is adopted to replace all potassium silicate (only silica sol and inorganic special emulsion), and compared with the embodiment, the coating has poor adhesive force and poor bonding condition, and is easy to scrape in the use process.
(5) Comparative example 5 differs from example 1 only in that: compared with the embodiment, after the potassium silicate is stored for 24 hours, the thickening and solidification problems exist, the stability is poor, the coating is inconvenient to use, the film forming effect is poor, and the concentration of negative oxygen ion air released by a coating is reduced due to the fact that excessive potassium silicate possibly interacts with synthetic negative oxygen ion mineral powder, so that the antibacterial, antiviral, sterilizing and virucidal performances are reduced.
(6) Comparative example 6 differs from example 1 only in that: the proportion of the silica sol to the potassium silicate exceeds a limit range, and the silica sol is more and the potassium silicate is less; compared with the embodiment, the coating has poor adhesion and poor adhesion, and is easy to scrape in the use process.
(7) Comparative example 7 differs from example 1 only in that: the proportion of the silica sol to the potassium silicate is lower than a limited range, the silica sol is less, and the potassium silicate is more; compared with the embodiment, the coating has the problems of thickening and solidification after being stored for 24 hours, poor stability, inconvenient coating and use and poor film forming effect, and the concentration of negative oxygen ion air released by the coating is reduced due to the fact that excessive potassium silicate possibly interacts with synthetic negative oxygen ion mineral powder, so that the antibacterial, antiviral, bactericidal and virucidal performances are reduced.
In summary, the negative oxygen ion inorganic coating with the functions of resisting bacteria, resisting viruses, sterilizing and killing viruses provided by the invention has at least the following inventive conception, action mechanism and technical effects:
1. the design concept and the action mechanism of the invention:
1.1 compared with negative oxygen ion additives, the adopted specific compound synthetic negative oxygen ion mineral powder has more advantages, and the specific compound synthetic negative oxygen ion mineral powder comprises the following components:
the synthesized negative oxygen ion mineral powder is composed of tourmaline light powder, rare earth oxide, heavy rare earth oxide, barite powder, silicate and calcium oxide according to a specific proportion.
(1) The synthesized negative oxygen ion mineral powder contains inorganic piezoelectric crystal material and has permanent electrode, the mineral powder with the same weight can contain more positive and negative electrodes, and can generate instant discharge ionization effect after contacting with common water and water molecules in the air by a piezoelectric crystal method to electrolyze the water molecules into H - And OH (OH) - ，H - Is combined with electrons released by the synthesized negative oxygen ion mineral powder to be neutralized into H atoms, and OH - Can continuously generate hydroxyl anions HO by combining with other water molecules - Forming negative oxygen ions.
The synthesized negative oxygen ion mineral powder contains part of radioactive substances, and air negative oxygen ions are generated through the radioactive substances. The synthesized negative oxygen ion mineral powder combines the advantages of a piezoelectric crystal method and a radioactive material, and the two materials are matched to obtain the effect of releasing the negative oxygen ions with low radioactivity and high concentration.
(2) The synthetic negative oxygen ion mineral powder contains radiation-resistant materials such as zinc and barite powder, the zinc and the barite can block X rays and radioactive rays, the radiation-resistant material is good, the radioactivity of the synthetic negative oxygen ion mineral powder is reduced, the mineral powder with the same weight has lower radioactivity, and more negative oxygen ions can be released.
(3) Compared with the scheme of releasing negative oxygen ions by adding the negative oxygen ion additive, the synthesized negative oxygen ion mineral powder disclosed by the application is lower in radioactivity and safer:
some existing negative oxygen ion additives are made of monazite, zeolite, medical stone and tourmaline. Monazite has high radioactivity, and is harmful to the environment due to the high radioactivity of thorium element in ore, and is forbidden to be adopted in many countries.
On the contrary, the main components of the synthetic negative oxygen ion mineral powder are tourmaline light powder, trace rare earth mineral containing calcium lanthanum cerium elements and calcium oxide. Wherein, tourmaline is a borosilicate mineral, which is a silicate mineral with a ring structure of aluminum, iron, sodium, magnesium and lithium characterized by boron, the Mohs hardness is 7-7.5, the specific gravity is 2.98-3.20, and the essence of tourmaline is that stone is not radiated. The rare earth mineral powder containing lanthanum and cerium has very low radioactivity, and is only used as an auxiliary material.
The synthetic negative oxygen ion mineral powder is compounded by a plurality of specific components in a specific proportion, and compared with the additive of the negative oxygen ion, the composite negative oxygen ion mineral powder can ensure that negative oxygen ions are released in high concentration and keep lower radioactivity, so that the coating meets the radioactivity requirement of a coating A product in national standard. In addition, the coating prepared by the coating has the characteristic of releasing negative oxygen ions in high concentration, and has the functions of resisting bacteria, killing viruses and resisting bacteria in the use environment in the use process.
1.2 inorganic composite filler with specific components and proportions is adopted, and the synergistic effect of the components of the inorganic composite filler enables the negative oxygen ion inorganic coating to have the advantages that:
the inorganic composite filler comprises the following components of heavy calcium, diatomite, kaolin, mica powder, feldspar powder and wollastonite in a specific proportion:
(1) Ca in the inorganic composite filler 2+ ,Mg 2+ ，Fe 3+ The equivalent multivalent metal ions are extremely few, so that the long-term viscosity stability of the inorganic coating can be greatly improved, and the physicochemical properties such as scrubbing resistance, bonding strength and the like are ensured to be kept stable for a long time;
(2) The components of the composite material comprise mica powder with a sheet structure and siliceous lime with a needle structure, and the sheet filler is uniformly stacked in the coating through the matching design of the sheet structure and the needle structure, and the needle material is matched for filling, so that the crack resistance is improved;
(3) By adopting the inorganic composite filler, the temperature resistance of the compound combination reaches more than 1000 ℃, and the compound combination is not decomposed at high temperature, so that the flame resistance of the inorganic coating can be improved;
(4) The Mohs hardness of the coating is up to more than 5, the hardness and the wear resistance of the film can be improved, and the characteristics of the inorganic coating are fully reflected.
(5) By adding the inorganic composite filler combination, the extinction problem caused by low emulsion content in the inorganic coating is solved.
(6) If the specific inorganic composite filler combination is not adopted to be applied to the negative oxygen ion inorganic coating, the following adverse effects are caused:
the inorganic composite powder has insufficient purity, soluble metal ions react with potassium silicate and silica sol to increase the thickness of the coating, and the application aims at controlling organic volatilization, so that the use amount of emulsion is small, the thickness increase caused by the reaction of the soluble metal ions and the potassium silicate causes poor film forming effect of the coating, and the problem of extinction of the coating is solved.
The inventors found that: the purity of the heavy calcium powder influences the reactivity of the inorganic composite filler and potassium silicate, magnesium ions as impurities can easily react with the potassium silicate to form gel, and the higher the concentration of the potassium silicate is, the faster the gelation speed is. In the potassium silicate latex-based inorganic paint, even if potassium silicate with the best stability is adopted, the potassium silicate can be rapidly gelled, and the stability cannot be controlled. The reactivity of silica sol is weak, and impure heavy calcium does not cause stronger gel reaction.
Based on the findings described above, other filler rich in polyvalent metal ions is employed unlike the present application. Such as dolomite dust, light calcium, zinc oxide, etc. (or mixed into other fillers as impurities) will have a negative impact on the stability of the coating system.
1.3 inorganic composite emulsion with specific components and proportions is adopted, and the synergistic effect of the components of the inorganic composite emulsion enables the negative oxygen ion inorganic coating to have the advantages that:
the silica sol and the potassium silicate form an inorganic binder together, and the synergistic effect of the silica sol and the potassium silicate ensures that the inorganic coating has obvious advantages compared with the simple silica sol or the simple potassium silicate:
(1) By adding the inorganic binder formed by compounding silica sol and potassium silicate, the curing shrinkage stress of a coating film is reduced, the adhesive force and the cracking resistance are improved, and the coating can be applied to the surface of a non-mineral substrate such as a latex paint coating from inorganic minerals (except high gloss and elasticity);
(2) The inorganic binder formed by compounding silica sol and potassium silicate is added, so that the consumption of the potassium silicate is reduced, the water resistance of the negative oxygen ion inorganic coating is improved, and the defects of pulverization, color change and flower development caused by salting out are relieved;
(3) By adding the inorganic binder formed by compounding silica sol and potassium silicate, the drying speed of the inorganic negative oxygen ion coating is increased after the coating, the early water resistance of the coating film is greatly improved, and the inorganic negative oxygen ion coating is particularly suitable for coating the outer wall;
(4) By adding the silica sol and the potassium silicate for compounding and combining, the alkalinity of the coating is reduced, and the dissolution and damage effects on the formed inorganic-Si-O-Si-network structure after meeting water are reduced, so that the coating is particularly suitable for being used on inorganic exterior wall coating;
(5) The paint has low thixotropy, better leveling property and reduced roll mark;
(6) The pH of the paint is reduced and can be controlled to be 11.0-11.5, and as the pH is controlled in the range, the paint can not be corroded by microorganisms in the long-term storage process, and a preservative is not added, and a corrosive warning label is not required to be attached to the package;
(7) By adding silica sol and potassium silicate for compounding and combining, the dissolution and damage effects on the formed inorganic-Si-O-Si-network structure after meeting water are reduced, the pH is reduced, the content of potassium oxide is greatly reduced, the possibility of salting out and bloom is obviously reduced, and the inorganic color paint is more suitable for color inorganic paint;
(8) The components of the coating are still mainly inorganic binders, the Jiang Nianjie force is kept, and the brushing resistance is equivalent to that of a potassium silicate emulsion base.
It should be noted that: in order to meet the requirement of the stability of the paint formulation, proper silica sol is selected according to the dosage of potassium silicate. The proportion of the silica sol and the potassium silicate in the formula is also required to be reasonably matched, the proportion of the silica sol and the potassium silicate is controlled within the limit of the application, and the modulus after the silica sol and the potassium silicate are mixed is controlled to be 10-15 optimally.
If the potassium silicate is excessively used and the modulus is low, the stability of the negative oxygen ion inorganic coating is reduced; if the usage amount of the silica sol is too large, the potassium silicate is too little, and the modulus is higher, the cohesive force of the negative oxygen ion inorganic coating is reduced, the coating performance of the coating is reduced, the adhesive force is reduced, and the coating is easier to crack.
In addition, in order to further improve the stability of the paint, it is preferable that the silica sol is a surface-treated highly stabilized silica sol in addition to the above-defined ratio of the inorganic composite emulsion.
1.4 silica sol, potassium silicate and synthetic negative oxygen ion mineral powder are combined to have a specific combined synergistic effect, so that the method has the advantages that the method is particularly:
the specific synthetic negative oxygen ion mineral powder adopted by the application has the following requirements on specific combination of potassium silicate and silica sol:
the components of the synthesized negative oxygen ion mineral powder comprise rare earth minerals: light rare earth (cerium group) oxides, heavy rare earth (yttrium group) oxides, and the like, which contain soluble high-valence metal ions, divalent salts, trivalent salts, and the like, which may cause instability, react during storage, and thicken and cure the coating, which would render the coating unusable.
The inorganic binder is formed by the silica sol and the potassium silicate, and the synergistic effect of the silica sol and the potassium silicate enables the silica sol, the potassium silicate and the synthetic negative oxygen ion mineral powder to be combined with obvious advantages: the curing shrinkage stress of the coating film is reduced, the adhesive force and the cracking resistance are improved, and the coating film is applicable to the surface coating (except for high gloss and elasticity) of non-mineral substrates such as emulsion paint coatings and the like from inorganic minerals;
by adopting specific combination and compounding, the total relative dosage of potassium silicate is reduced, the water resistance is improved, and the defects of pulverization, color change and flower development caused by salting out are reduced; and the alkalinity is reduced, the dissolution and damage effects on the formed inorganic-Si-O-Si-network structure after meeting water are reduced, the pH is reduced, the content of potassium oxide is greatly reduced, the probability of reacting with soluble high-valence metal ions, divalent salts, trivalent salts and other components is obviously reduced, and the thickening and solidification of the coating do not occur in the later stage.
1.5 adopting other specific raw material components to be matched with inorganic composite filler and inorganic composite emulsion, the method has the advantages that:
(1) The thickener in this application is hydroxyethyl cellulose (HEC), which is a type of strong alkali resistant, without the use of hydrophobically modified cellulose ether, otherwise the high electrolyte in the coating component may cause its solubility to decrease and precipitate;
(2) As with all small particle size emulsion polymers, there is also a tendency to foam when the coating is formulated using inorganic composite emulsions, so a certain amount of high efficiency defoamer is added;
(3) The inorganic composite emulsion provided by the invention has antibacterial property in a supply state, and the inorganic coating prepared by using the inorganic composite emulsion also has the characteristic of high pH (more than or equal to 11), can not be corroded by microorganisms in a long-term storage process, and does not need to add preservative in the formula. If higher mildew-proof protection is required under special environment, alkali-resistant mildew-proof agent auxiliary agents can be preferably used for addition;
and, alkaline conditions promote the dissolution condensation reversible reaction of potassium silicate and silica sol. Therefore, the chemical composition of filler, the stabilizing degree of potassium silicate and silica sol (specific compounding ratio), the PH value of the coating system and the like in the coating formula have influence on the stability of the inorganic coating.
2. The invention has the technical effects that:
(1) The negative oxygen ion inorganic coating with the functions of resisting bacteria, resisting viruses, sterilizing and killing viruses has the high molecular organic content of less than 5 percent, and is a liquid inorganic coating which meets the standard of modification manuscripts issued by the national republic of China and urban and rural construction department in 2019; and its TVOC value is low;
(2) The negative oxygen ion inorganic coating with the functions of resisting bacteria, resisting viruses, sterilizing and killing viruses has the advantages that the coating has the performances of low radioactivity and high concentration release of negative oxygen ions, solves the problem of radioactive superscalar of the coating for universally releasing the negative oxygen ions, and accords with the radionuclide A standard of indoor decoration materials by adding the nano-scale synthetic negative oxygen ion mineral powder with the specific formula;
(3) The negative oxygen ion inorganic coating with the functions of resisting bacteria, viruses, bacteria and viruses is prepared by grinding natural mineral powder with positive and negative electrodes into 4000-mesh powder, uniformly distributing the 4000-mesh powder on a wall surface coated with the coating, and forming the coating by utilizing the principle of a piezoelectric crystal method, wherein the formed coating can naturally and continuously release high-concentration negative oxygen ions, has the functions of resisting bacteria, viruses, bacteria and viruses in a use environment, and is an environment-friendly healthy and health-preserving functional coating;
(4) The paint has a simple formula, easily obtained raw material components and suitability for industrial production;
(5) The paint can achieve good anti-corrosion effect without adding preservative, and is more environment-friendly;
(6) The paint has the advantages of low odor, low VOC release, zero heavy metal and low radioactivity, and is safe and environment-friendly;
(7) The coating has excellent film forming performance, and a paint film is not easy to crack or fall off;
(8) The coating has good stability, no gelation phenomenon occurs in the preparation process, and the thickening and curing probability of the coating in the use and storage processes is obviously reduced;
(9) The coating has excellent scrubbing resistance;
(10) The inorganic composite emulsion system in the coating can directly replace emulsion in emulsion paint, and has the advantages of less consumption and low cost;
(11) The paint has better compatibility with color paste, more convenient color mixing and more stable color.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention, and not for limiting the same; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the invention.
Claims (10)
1. The negative oxygen ion inorganic coating with the functions of resisting bacteria and viruses, sterilizing and killing viruses is characterized by comprising the following components in parts by weight:
the inorganic composite filler comprises the components of heavy calcium, diatomite, kaolin, mica powder, feldspar powder and wollastonite;
the components of the inorganic composite emulsion comprise silica sol, potassium silicate and inorganic special emulsion;
the components of the synthesized negative oxygen ion mineral powder comprise tourmaline light powder, rare earth oxide, heavy rare earth oxide, barite powder, silicate and calcium oxide.
2. The negative oxygen ion inorganic paint with antibacterial, antiviral, bactericidal and virucidal functions of claim 1, characterized in that:
the inorganic composite filler comprises the following components in parts by weight: 50 to 100 parts of heavy calcium powder, 5 to 10 parts of diatomite, 5 to 10 parts of kaolin, 1 to 5 parts of mica powder, 1 to 5 parts of feldspar powder and 1 to 5 parts of wollastonite.
3. The negative oxygen ion inorganic paint with antibacterial, antiviral, bactericidal and virucidal functions of claim 1, characterized in that:
the inorganic composite emulsion comprises the following components in parts by weight: 10-30 parts of silica sol, 10-30 parts of potassium silicate and 40-70 parts of inorganic special emulsion.
4. The negative oxygen ion inorganic paint with antibacterial, antiviral, bactericidal and virucidal functions of claim 1, characterized in that:
the synthetic negative oxygen ion mineral powder comprises the following components in parts by weight: 390 to 400 parts of tourmaline light powder, 200 to 210 parts of rare earth oxide, 40 to 50 parts of rare earth oxide, 90 to 100 parts of barite powder, 140 to 150 parts of silicate and 40 to 50 parts of calcium oxide.
5. The negative oxygen ion inorganic paint with antibacterial, antiviral, bactericidal and virucidal functions according to claim 1 or 3, characterized in that: the water is deionized water;
the dispersing agent is polyacrylate dispersing agent;
the defoamer is mineral oil defoamer.
6. The negative oxygen ion inorganic paint with antibacterial, antiviral, bactericidal and virucidal functions of claim 1, characterized in that: the heavy calcium is high-purity heavy calcium, and the purity of the heavy calcium is 80% or more.
7. The inorganic negative oxygen ion coating with the functions of resisting bacteria, resisting viruses, sterilizing and killing viruses according to claim 1, wherein the particle size of the synthesized negative oxygen ion mineral powder is 3000-5000 meshes.
8. The negative oxygen ion inorganic paint with antibacterial, antiviral, bactericidal and virucidal functions of claim 1, characterized in that: the PH of the negative oxygen ion inorganic coating is more than or equal to 11.
9. The negative oxygen ion inorganic paint with antibacterial, antiviral, bactericidal and virucidal functions of claim 1, characterized in that:
the wetting agent is fatty alcohol polyoxyethylene ether wetting agent;
the pigment and filler is titanium dioxide;
the inorganic special emulsion is styrene-acrylic emulsion or silicone-acrylic emulsion.
10. A method for preparing the negative oxygen ion inorganic coating with antibacterial, antiviral, bactericidal and virucidal functions as claimed in any one of claims 1 to 9, which is characterized by comprising the following steps:
uniformly mixing water, a dispersing agent, a wetting agent, pigment and filler, synthetic negative oxygen ion mineral powder, inorganic composite filler, hydroxyethyl cellulose and a part of defoamer according to a certain weight ratio under a stirring state, and continuously stirring until the mixture is uniform to obtain a mixture M;
adding an anti-settling agent, inorganic composite emulsion and the rest defoamer into the mixture M, uniformly stirring, and filtering to obtain a finished product.
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