CN104402282A - 光催化涂层 - Google Patents
光催化涂层 Download PDFInfo
- Publication number
- CN104402282A CN104402282A CN201410503568.5A CN201410503568A CN104402282A CN 104402282 A CN104402282 A CN 104402282A CN 201410503568 A CN201410503568 A CN 201410503568A CN 104402282 A CN104402282 A CN 104402282A
- Authority
- CN
- China
- Prior art keywords
- coating
- alkali metal
- metal silicate
- water sodium
- roofing granule
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000011248 coating agent Substances 0.000 title claims abstract description 66
- 238000000576 coating method Methods 0.000 title claims abstract description 66
- 230000001699 photocatalysis Effects 0.000 title claims abstract description 48
- 239000002245 particle Substances 0.000 claims abstract description 33
- 229910052910 alkali metal silicate Inorganic materials 0.000 claims abstract description 20
- 239000011230 binding agent Substances 0.000 claims abstract description 19
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 43
- 235000010339 sodium tetraborate Nutrition 0.000 claims description 39
- 239000000203 mixture Substances 0.000 claims description 23
- FYSNRPHRLRVCSW-UHFFFAOYSA-N dodecasodium;tetraborate Chemical class [Na+].[Na+].[Na+].[Na+].[Na+].[Na+].[Na+].[Na+].[Na+].[Na+].[Na+].[Na+].[O-]B([O-])[O-].[O-]B([O-])[O-].[O-]B([O-])[O-].[O-]B([O-])[O-] FYSNRPHRLRVCSW-UHFFFAOYSA-N 0.000 claims description 21
- 239000008187 granular material Substances 0.000 claims description 20
- 230000000694 effects Effects 0.000 claims description 18
- 229910010413 TiO 2 Inorganic materials 0.000 claims description 14
- 235000019353 potassium silicate Nutrition 0.000 claims description 12
- 239000007787 solid Substances 0.000 claims description 12
- 238000012360 testing method Methods 0.000 claims description 12
- 238000000034 method Methods 0.000 claims description 11
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims description 10
- 239000004111 Potassium silicate Substances 0.000 claims description 8
- 229910052913 potassium silicate Inorganic materials 0.000 claims description 8
- NNHHDJVEYQHLHG-UHFFFAOYSA-N potassium silicate Chemical compound [K+].[K+].[O-][Si]([O-])=O NNHHDJVEYQHLHG-UHFFFAOYSA-N 0.000 claims description 8
- 229910004298 SiO 2 Inorganic materials 0.000 claims description 5
- 239000000049 pigment Substances 0.000 claims description 5
- 229910052802 copper Inorganic materials 0.000 claims description 4
- 238000002425 crystallisation Methods 0.000 claims description 4
- 230000008025 crystallization Effects 0.000 claims description 4
- PAZHGORSDKKUPI-UHFFFAOYSA-N lithium metasilicate Chemical compound [Li+].[Li+].[O-][Si]([O-])=O PAZHGORSDKKUPI-UHFFFAOYSA-N 0.000 claims description 4
- 229910052912 lithium silicate Inorganic materials 0.000 claims description 4
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 claims description 4
- 229910001218 Gallium arsenide Inorganic materials 0.000 claims description 3
- 229910019899 RuO Inorganic materials 0.000 claims description 3
- 229910006404 SnO 2 Inorganic materials 0.000 claims description 3
- 229910002367 SrTiO Inorganic materials 0.000 claims description 3
- 229910052799 carbon Inorganic materials 0.000 claims description 3
- 229910052731 fluorine Inorganic materials 0.000 claims description 3
- 229910052737 gold Inorganic materials 0.000 claims description 3
- 229910052742 iron Inorganic materials 0.000 claims description 3
- 229910052759 nickel Inorganic materials 0.000 claims description 3
- 229910052758 niobium Inorganic materials 0.000 claims description 3
- 229910052757 nitrogen Inorganic materials 0.000 claims description 3
- 229910052763 palladium Inorganic materials 0.000 claims description 3
- 229910052697 platinum Inorganic materials 0.000 claims description 3
- 229910052709 silver Inorganic materials 0.000 claims description 3
- 229910052717 sulfur Inorganic materials 0.000 claims description 3
- 229910052718 tin Inorganic materials 0.000 claims description 3
- 238000006555 catalytic reaction Methods 0.000 claims 2
- 230000008021 deposition Effects 0.000 claims 2
- KGBXLFKZBHKPEV-UHFFFAOYSA-N boric acid Chemical compound OB(O)O KGBXLFKZBHKPEV-UHFFFAOYSA-N 0.000 abstract description 26
- 239000008199 coating composition Substances 0.000 abstract description 22
- BTBUEUYNUDRHOZ-UHFFFAOYSA-N Borate Chemical compound [O-]B([O-])[O-] BTBUEUYNUDRHOZ-UHFFFAOYSA-N 0.000 abstract description 15
- 239000004327 boric acid Substances 0.000 abstract description 15
- 235000010338 boric acid Nutrition 0.000 description 25
- 229960002645 boric acid Drugs 0.000 description 25
- 238000007146 photocatalysis Methods 0.000 description 20
- 229910021538 borax Inorganic materials 0.000 description 16
- 239000004328 sodium tetraborate Substances 0.000 description 16
- 239000008188 pellet Substances 0.000 description 15
- 239000011941 photocatalyst Substances 0.000 description 11
- 239000000463 material Substances 0.000 description 8
- 230000000052 comparative effect Effects 0.000 description 7
- 239000002585 base Substances 0.000 description 6
- 229910052751 metal Inorganic materials 0.000 description 6
- 239000007931 coated granule Substances 0.000 description 5
- UQGFMSUEHSUPRD-UHFFFAOYSA-N disodium;3,7-dioxido-2,4,6,8,9-pentaoxa-1,3,5,7-tetraborabicyclo[3.3.1]nonane Chemical group [Na+].[Na+].O1B([O-])OB2OB([O-])OB1O2 UQGFMSUEHSUPRD-UHFFFAOYSA-N 0.000 description 5
- 239000002184 metal Substances 0.000 description 5
- 238000005096 rolling process Methods 0.000 description 5
- 238000003756 stirring Methods 0.000 description 5
- XDVOLDOITVSJGL-UHFFFAOYSA-N 3,7-dihydroxy-2,4,6,8,9-pentaoxa-1,3,5,7-tetraborabicyclo[3.3.1]nonane Chemical compound O1B(O)OB2OB(O)OB1O2 XDVOLDOITVSJGL-UHFFFAOYSA-N 0.000 description 4
- GDTSJMKGXGJFGQ-UHFFFAOYSA-N 3,7-dioxido-2,4,6,8,9-pentaoxa-1,3,5,7-tetraborabicyclo[3.3.1]nonane Chemical compound O1B([O-])OB2OB([O-])OB1O2 GDTSJMKGXGJFGQ-UHFFFAOYSA-N 0.000 description 4
- 238000010276 construction Methods 0.000 description 4
- 239000000428 dust Substances 0.000 description 4
- 238000002360 preparation method Methods 0.000 description 4
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 3
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical group 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 3
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical group [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 3
- NIPNSKYNPDTRPC-UHFFFAOYSA-N N-[2-oxo-2-(2,4,6,7-tetrahydrotriazolo[4,5-c]pyridin-5-yl)ethyl]-2-[[3-(trifluoromethoxy)phenyl]methylamino]pyrimidine-5-carboxamide Chemical compound O=C(CNC(=O)C=1C=NC(=NC=1)NCC1=CC(=CC=C1)OC(F)(F)F)N1CC2=C(CC1)NN=N2 NIPNSKYNPDTRPC-UHFFFAOYSA-N 0.000 description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 3
- 235000011941 Tilia x europaea Nutrition 0.000 description 3
- 239000010949 copper Substances 0.000 description 3
- 239000008367 deionised water Substances 0.000 description 3
- 229910021641 deionized water Inorganic materials 0.000 description 3
- 239000003500 flue dust Substances 0.000 description 3
- 239000004571 lime Substances 0.000 description 3
- 229910052744 lithium Inorganic materials 0.000 description 3
- -1 metaborate Chemical compound 0.000 description 3
- 229910052708 sodium Inorganic materials 0.000 description 3
- 239000011734 sodium Chemical group 0.000 description 3
- 229910052723 transition metal Inorganic materials 0.000 description 3
- 150000003624 transition metals Chemical group 0.000 description 3
- PWKNBLFSJAVFAB-UHFFFAOYSA-N 1-fluoro-2-nitrobenzene Chemical compound [O-][N+](=O)C1=CC=CC=C1F PWKNBLFSJAVFAB-UHFFFAOYSA-N 0.000 description 2
- 241000195493 Cryptophyta Species 0.000 description 2
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 2
- 239000007864 aqueous solution Substances 0.000 description 2
- 229910052788 barium Inorganic materials 0.000 description 2
- DSAJWYNOEDNPEQ-UHFFFAOYSA-N barium atom Chemical compound [Ba] DSAJWYNOEDNPEQ-UHFFFAOYSA-N 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- CDMADVZSLOHIFP-UHFFFAOYSA-N disodium;3,7-dioxido-2,4,6,8,9-pentaoxa-1,3,5,7-tetraborabicyclo[3.3.1]nonane;decahydrate Chemical compound O.O.O.O.O.O.O.O.O.O.[Na+].[Na+].O1B([O-])OB2OB([O-])OB1O2 CDMADVZSLOHIFP-UHFFFAOYSA-N 0.000 description 2
- RSCACTKJFSTWPV-UHFFFAOYSA-N disodium;3,7-dioxido-2,4,6,8,9-pentaoxa-1,3,5,7-tetraborabicyclo[3.3.1]nonane;pentahydrate Chemical compound O.O.O.O.O.[Na+].[Na+].O1B([O-])OB2OB([O-])OB1O2 RSCACTKJFSTWPV-UHFFFAOYSA-N 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000004907 flux Effects 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 239000011159 matrix material Substances 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- VGTPKLINSHNZRD-UHFFFAOYSA-N oxoborinic acid Chemical compound OB=O VGTPKLINSHNZRD-UHFFFAOYSA-N 0.000 description 2
- 239000010453 quartz Substances 0.000 description 2
- 238000012216 screening Methods 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 239000004575 stone Substances 0.000 description 2
- 239000010936 titanium Substances 0.000 description 2
- BSVBQGMMJUBVOD-UHFFFAOYSA-N trisodium borate Chemical compound [Na+].[Na+].[Na+].[O-]B([O-])[O-] BSVBQGMMJUBVOD-UHFFFAOYSA-N 0.000 description 2
- BIKXLKXABVUSMH-UHFFFAOYSA-N trizinc;diborate Chemical compound [Zn+2].[Zn+2].[Zn+2].[O-]B([O-])[O-].[O-]B([O-])[O-] BIKXLKXABVUSMH-UHFFFAOYSA-N 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 241000192700 Cyanobacteria Species 0.000 description 1
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 description 1
- 206010021033 Hypomenorrhoea Diseases 0.000 description 1
- 206010061217 Infestation Diseases 0.000 description 1
- 229910021537 Kernite Inorganic materials 0.000 description 1
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 description 1
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 description 1
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical group [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 1
- 239000006004 Quartz sand Substances 0.000 description 1
- WGLPBDUCMAPZCE-UHFFFAOYSA-N Trioxochromium Chemical compound O=[Cr](=O)=O WGLPBDUCMAPZCE-UHFFFAOYSA-N 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000004913 activation Effects 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- IRERQBUNZFJFGC-UHFFFAOYSA-L azure blue Chemical compound [Na+].[Na+].[Na+].[Na+].[Na+].[Na+].[Na+].[Na+].[Al+3].[Al+3].[Al+3].[Al+3].[Al+3].[Al+3].[S-]S[S-].[O-][Si]([O-])([O-])[O-].[O-][Si]([O-])([O-])[O-].[O-][Si]([O-])([O-])[O-].[O-][Si]([O-])([O-])[O-].[O-][Si]([O-])([O-])[O-].[O-][Si]([O-])([O-])[O-] IRERQBUNZFJFGC-UHFFFAOYSA-L 0.000 description 1
- QBLDFAIABQKINO-UHFFFAOYSA-N barium borate Chemical compound [Ba+2].[O-]B=O.[O-]B=O QBLDFAIABQKINO-UHFFFAOYSA-N 0.000 description 1
- XBJJRSFLZVLCSE-UHFFFAOYSA-N barium(2+);diborate Chemical compound [Ba+2].[Ba+2].[Ba+2].[O-]B([O-])[O-].[O-]B([O-])[O-] XBJJRSFLZVLCSE-UHFFFAOYSA-N 0.000 description 1
- 150000001642 boronic acid derivatives Chemical class 0.000 description 1
- 238000001354 calcination Methods 0.000 description 1
- 239000006229 carbon black Substances 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000005253 cladding Methods 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- 229910017052 cobalt Inorganic materials 0.000 description 1
- 239000010941 cobalt Substances 0.000 description 1
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 1
- 239000004567 concrete Substances 0.000 description 1
- 235000009508 confectionery Nutrition 0.000 description 1
- XCJYREBRNVKWGJ-UHFFFAOYSA-N copper(II) phthalocyanine Chemical compound [Cu+2].C12=CC=CC=C2C(N=C2[N-]C(C3=CC=CC=C32)=N2)=NC1=NC([C]1C=CC=CC1=1)=NC=1N=C1[C]3C=CC=CC3=C2[N-]1 XCJYREBRNVKWGJ-UHFFFAOYSA-N 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 230000018044 dehydration Effects 0.000 description 1
- 238000006297 dehydration reaction Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- PSHMSSXLYVAENJ-UHFFFAOYSA-N dilithium;[oxido(oxoboranyloxy)boranyl]oxy-oxoboranyloxyborinate Chemical compound [Li+].[Li+].O=BOB([O-])OB([O-])OB=O PSHMSSXLYVAENJ-UHFFFAOYSA-N 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- XGCILSHUAUFSLI-UHFFFAOYSA-N dodecalithium;tetraborate Chemical class [Li+].[Li+].[Li+].[Li+].[Li+].[Li+].[Li+].[Li+].[Li+].[Li+].[Li+].[Li+].[O-]B([O-])[O-].[O-]B([O-])[O-].[O-]B([O-])[O-].[O-]B([O-])[O-] XGCILSHUAUFSLI-UHFFFAOYSA-N 0.000 description 1
- KRHIGIYZRJWEGL-UHFFFAOYSA-N dodecapotassium;tetraborate Chemical class [K+].[K+].[K+].[K+].[K+].[K+].[K+].[K+].[K+].[K+].[K+].[K+].[O-]B([O-])[O-].[O-]B([O-])[O-].[O-]B([O-])[O-].[O-]B([O-])[O-] KRHIGIYZRJWEGL-UHFFFAOYSA-N 0.000 description 1
- 238000001493 electron microscopy Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000004519 grease Substances 0.000 description 1
- 239000011440 grout Substances 0.000 description 1
- 239000010440 gypsum Substances 0.000 description 1
- 229910052602 gypsum Inorganic materials 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 230000002262 irrigation Effects 0.000 description 1
- 238000003973 irrigation Methods 0.000 description 1
- 238000003760 magnetic stirring Methods 0.000 description 1
- 229910052748 manganese Inorganic materials 0.000 description 1
- 239000011572 manganese Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 239000010434 nepheline Substances 0.000 description 1
- 229910052664 nepheline Inorganic materials 0.000 description 1
- PXHVJJICTQNCMI-UHFFFAOYSA-N nickel Substances [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 1
- 239000010955 niobium Substances 0.000 description 1
- 229910052755 nonmetal Inorganic materials 0.000 description 1
- 150000002843 nonmetals Chemical class 0.000 description 1
- 239000011368 organic material Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- PYUBPZNJWXUSID-UHFFFAOYSA-N pentadecapotassium;pentaborate Chemical class [K+].[K+].[K+].[K+].[K+].[K+].[K+].[K+].[K+].[K+].[K+].[K+].[K+].[K+].[K+].[O-]B([O-])[O-].[O-]B([O-])[O-].[O-]B([O-])[O-].[O-]B([O-])[O-].[O-]B([O-])[O-] PYUBPZNJWXUSID-UHFFFAOYSA-N 0.000 description 1
- VPOLVWCUBVJURT-UHFFFAOYSA-N pentadecasodium;pentaborate Chemical class [Na+].[Na+].[Na+].[Na+].[Na+].[Na+].[Na+].[Na+].[Na+].[Na+].[Na+].[Na+].[Na+].[Na+].[Na+].[O-]B([O-])[O-].[O-]B([O-])[O-].[O-]B([O-])[O-].[O-]B([O-])[O-].[O-]B([O-])[O-] VPOLVWCUBVJURT-UHFFFAOYSA-N 0.000 description 1
- 230000003351 photoxidation Effects 0.000 description 1
- IEQIEDJGQAUEQZ-UHFFFAOYSA-N phthalocyanine Chemical compound N1C(N=C2C3=CC=CC=C3C(N=C3C4=CC=CC=C4C(=N4)N3)=N2)=C(C=CC=C2)C2=C1N=C1C2=CC=CC=C2C4=N1 IEQIEDJGQAUEQZ-UHFFFAOYSA-N 0.000 description 1
- 239000011295 pitch Substances 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 229920003229 poly(methyl methacrylate) Polymers 0.000 description 1
- 239000002861 polymer material Substances 0.000 description 1
- 239000004926 polymethyl methacrylate Substances 0.000 description 1
- 229910052573 porcelain Inorganic materials 0.000 description 1
- 229910052700 potassium Chemical group 0.000 description 1
- 239000011591 potassium Chemical group 0.000 description 1
- 125000006239 protecting group Chemical group 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- 239000010454 slate Substances 0.000 description 1
- NVIFVTYDZMXWGX-UHFFFAOYSA-N sodium metaborate Chemical compound [Na+].[O-]B=O NVIFVTYDZMXWGX-UHFFFAOYSA-N 0.000 description 1
- 229960001922 sodium perborate Drugs 0.000 description 1
- 229940079864 sodium stannate Drugs 0.000 description 1
- NASFKTWZWDYFER-UHFFFAOYSA-N sodium;hydrate Chemical compound O.[Na] NASFKTWZWDYFER-UHFFFAOYSA-N 0.000 description 1
- YKLJGMBLPUQQOI-UHFFFAOYSA-M sodium;oxidooxy(oxo)borane Chemical compound [Na+].[O-]OB=O YKLJGMBLPUQQOI-UHFFFAOYSA-M 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000010435 syenite Substances 0.000 description 1
- 239000011135 tin Substances 0.000 description 1
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 description 1
- WUUHFRRPHJEEKV-UHFFFAOYSA-N tripotassium borate Chemical compound [K+].[K+].[K+].[O-]B([O-])[O-] WUUHFRRPHJEEKV-UHFFFAOYSA-N 0.000 description 1
- 235000013799 ultramarine blue Nutrition 0.000 description 1
- 229910000859 α-Fe Inorganic materials 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04D—ROOF COVERINGS; SKY-LIGHTS; GUTTERS; ROOF-WORKING TOOLS
- E04D13/00—Special arrangements or devices in connection with roof coverings; Protection against birds; Roof drainage; Sky-lights
- E04D13/002—Provisions for preventing vegetational growth, e.g. fungi, algae or moss
-
- B01J35/39—
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J37/00—Processes, in general, for preparing catalysts; Processes, in general, for activation of catalysts
- B01J37/02—Impregnation, coating or precipitation
- B01J37/0215—Coating
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B20/00—Use of materials as fillers for mortars, concrete or artificial stone according to more than one of groups C04B14/00 - C04B18/00 and characterised by shape or grain distribution; Treatment of materials according to more than one of the groups C04B14/00 - C04B18/00 specially adapted to enhance their filling properties in mortars, concrete or artificial stone; Expanding or defibrillating materials
- C04B20/10—Coating or impregnating
- C04B20/1055—Coating or impregnating with inorganic materials
- C04B20/1077—Cements, e.g. waterglass
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/24—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing alkyl, ammonium or metal silicates; containing silica sols
- C04B28/26—Silicates of the alkali metals
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
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Abstract
在一个方面，本发明涉及涂料组合物。所述涂料组合物包含光催化粒子和含有硼酸、硼酸盐、或它们的组合的碱金属硅酸盐粘结剂。在另一方面，本发明涉及带涂层的制品。所述带涂层的制品在其外表面上拥有由上述涂料组合物形成并具有改良的耐久性的光催化涂层。
Description
本专利申请是申请号为200780046660.1、申请日为2007年12月17日、发明名称为“光催化涂层”的专利申请的分案申请。
技术领域
本发明涉及涂料组合物和具有由涂料组合物形成的光催化涂层的带涂层的制品，尤其是在建筑材料中的应用，例如屋顶粒料。
背景技术
由于藻类生长或其他介质导致的建筑物表面变色一直是困扰建筑业多年的难题。变色往往是由于蓝绿藻和其他通过空气传播的污染物(例如烟尘和油脂)的存在所引起。
解决该问题的一个方法是为建筑物表面涂覆包含光催化剂和粘结剂(通常为硅酸盐粘结剂)的组合物。当暴露于阳光下时，光催化剂可以光氧化导致变色的有机材料。
光催化二氧化钛(TiO2)粒子可以用于提供光催化活性，例如用在屋顶粒料中。为了获得长期的光催化性能，可以在涂料组合物中使用相对高含量的硅酸盐。这可能影响带涂层粒料的颜色，并且降低它们的光活性。
发明内容
本发明涉及涂料组合物以及通过涂覆涂料组合物得到的带涂层的制品。
本发明的涂料组合物通常包含光催化粒子和含有硼酸、硼酸盐、或它们的组合的碱金属硅酸盐粘结剂。优选地，光催化粒子为过渡金属催化剂。特别优选的光催化剂包括：结晶锐钛矿型TiO2、结晶金红石型TiO2、结晶ZnO以及它们的组合。涂料组合物中所用的光催化粒子通常具有约1nm至约1000nm范围内的平均粒度。优选的平均粒度的范围为约1nm至约200nm，最优选的范围为约1nm至约100nm。涂料组合物中光催化粒子的固体重量百分比的范围为约0.1％至约90％。优选的重量百分比的范围为约30％至约80％，最优选的范围为约40％至约70％。适用于本发明的碱金属硅酸盐粘结剂包括硅酸锂、硅酸钠、硅酸钾、以及它们的组合。
本发明中可以使用任何硼酸，包括原硼酸、焦硼酸、偏硼酸、四硼酸、五硼酸以及其他多硼酸。优选的硼酸是原硼酸。本发明中可以使用任何硼酸盐，包括无水或水合原硼酸盐、焦硼酸盐、偏硼酸盐、四硼酸盐、五硼酸盐以及其他多硼酸盐。优选的硼酸盐为四硼酸钠(硼砂)。特别优选的硼酸盐为五水四硼酸钠(五水硼砂)。涂料组合物中所用的硼酸、硼酸盐、或它们的组合的固体重量百分比通常大于约0.1％。优选的重量百分比大于约10％，最优选的百分比大于约20％。
将涂料组合物涂覆在基底制品上，然后在回转窑、烘箱或者其他合适的设备中将其加热至高温，可以生成具有改良的耐久性的光催化涂层。优选的制品包括易受由于藻类生长或其他介质(例如粉尘、灰尘、烟尘、花粉等通过空气传播的颗粒)所产生的变色影响的建筑材料。一种特别优选的制品是屋顶粒料。采用实例部分中描述的涂层耐久性测试法来测量所得涂层的耐久性，其结果可以大于约80％，更优选地大于约90％，最优地约100％。
具体实施方式
本发明涉及包含光催化粒子和含有硼酸、硼酸盐、或它们的组合的碱金属硅酸盐粘结剂的涂料组合物，以及具有改良的耐久性的光催化涂层的带涂层的制品。本发明中，采用实例部分中描述的涂层耐久性测试法来表征光催化涂层的耐久性。
通过以下方法形成光催化涂层：将涂料组合物涂覆在基底制品上，然后加热至最低约170℃、最高约650℃的高温，优选的温度为约200℃至约450℃。该涂层可以预防基底制品因藻类生长或其他介质而变色。就本发明的用途而言，涂层可以具有多个层。
适用于本发明的基底制品可以为能够耐受至少约170℃的温度的任何陶瓷、金属、或聚合物材料或它们的复合材料。优选的制品包括易受由于藻类侵扰或其他介质(例如粉尘、灰尘、烟尘、花粉等通过空气传播的颗粒)所产生的变色影响的建筑材料。例子包括：屋面材料、混凝土和水泥材料、石膏、沥青、陶瓷、灰墁、水泥浆、塑料、金属或带涂层的金属、玻璃、或它们的组合。其他例子包括：池面、墙面材料、壁板材料、地板、过滤***、冷却塔、浮标、海堤、护岸、船体、码头、以及沟渠。一种特别优选的制品为屋顶粒料，例如由粘板岩、绿岩、花岗岩、暗色岩、石英砂、页岩、霞石正长岩、玄武石、碎石英石、矿渣等形成，并且粒度(以直径计)在约300μm至约5000μm范围内的屋顶粒料。通常将屋顶粒料部分地嵌入基底屋面材料(例如沥青浸渍的屋顶板)，从而保护基底材料免受阳光和环境恶化的影响。另一种特别优选的制品为瓦片，例如由陶器、石头、瓷器、金属、聚合物、或它们的复合材料形成的那些瓦片。瓦片通常用于覆盖屋顶、天花板、地板、以及墙面，或其他物体(例如桌面)，以提供耐磨性、耐候性和/或耐火性。
本发明的涂料组合物中包含光催化剂。在活化或暴露于阳光后，认为光催化剂形成氧化和还原部位。人们认为这些部位会产生高度活性的物质，例如能够抑制或阻碍藻类在带涂层的制品上生长(尤其是在存在水的情况下)的羟基。本领域内的技术人员通常认可的多种光催化剂都适用于本发明。优选的光催化剂包括过渡金属光催化剂。合适的过渡金属光催化剂的例子包括：TiO2、ZnO、WO3、SnO2、CaTiO3、Fe2O3、MoO3、Nb2O5、TixZr(1- x)O2、SiC、SrTiO3、CdS、GaP、InP、GaAs、BaTiO3、KNbO3、Ta2O5、Bi2O3、NiO、Cu2O、SiO2、MoS2、InPb、RuO2、CeO2、Ti(OH)4、以及它们的组合。特别优选的光催化剂包括：结晶锐钛矿型TiO2、结晶金红石型TiO2、结晶ZnO以及它们的组合。
为了提高频谱效率，光催化剂可以掺杂非金属元素，例如C、N、S、F，或掺杂金属或金属氧化物，例如Pt、Pd、Au、Ag、Os、Rh、RuO2、Nb、Cu、Sn、Ni、Fe、或它们的组合。
光催化粒子可以通过按照ASTM D3849，用电子显微镜测定的平均粒度来表征。本发明通常使用平均粒度在约1nm至约1000nm范围内的光催化粒子。优选的平均粒度的范围为约1nm至约200nm，最优选的范围为约1nm至约100nm。此类光催化粒子具有相对大的单位粒子重量表面积，因此可能提供高光活性。
本发明的涂料组合物中光催化粒子的固体重量百分比范围为约0.1％至约90％。优选的重量百分比范围为约30％至约80％，最优选的范围为约40％至约70％。
合适的碱金属硅酸盐粘结剂的例子包括硅酸锂、硅酸钠、硅酸钾、以及它们的组合。碱金属硅酸盐通常表示为M2O:SiO2，其中M为锂、钠、或钾。SiO2与M2O的重量比可在约1.4:1至约3.75:1的范围内。优选的重量比在约2.75:1至约3.22:1的范围内。
碱金属硅酸盐粘结剂包含硼酸、硼酸盐、或它们的组合。本发明中可以使用任何硼酸，包括原硼酸、焦硼酸、偏硼酸、四硼酸、五硼酸以及其他多硼酸。优选的硼酸是原硼酸。本发明中可以使用任何硼酸盐，包括无水或水合原硼酸盐、焦硼酸盐、偏硼酸盐、四硼酸盐、五硼酸盐以及其他多硼酸盐。硼酸盐的例子包括：硼酸钠，例如一水过硼酸钠、三水过硼酸钠、四水过硼酸钠、脱水偏硼酸钠、四水偏硼酸钠、四硼酸钠(无水硼砂)、四水四硼酸钠(四水硼砂)、五水四硼酸钠(五水硼砂)、十水四硼酸钠(十水硼砂)、五水五硼酸钠、以及四水八硼酸钠；硼酸钾，例如四水四硼酸钾和四水五硼酸钾；硼酸锂，例如三水四硼酸锂、二水偏硼酸锂、以及八水偏硼酸锂；含钙硼酸盐，例如五水六硼酸钙、八水五硼酸钙钠、五水五硼酸钙钠；硼酸钡，例如一水偏硼酸钡、四水偏硼酸钡、以及五水偏硼酸钡；硼酸锌，例如一水三硼酸锌；以及铜、锰和钴的硼酸盐。优选的硼酸盐为四硼酸钠(硼砂)。特别优选的硼酸盐为五水四硼酸钠(五水硼砂)。
硼酸、硼酸盐、或它们的组合的使用提高了光催化涂层的耐久性。提高光催化涂层的耐久性的传统方法是增加涂料组合物中所用的碱金属硅酸盐的量。一般来讲，这会降低涂层的光活性，并且在一些情况下还可能使颜色变淡。相比之下，本发明中的原硼酸或五水四硼酸钠(五水硼砂)的使用为(例如)TiO2粒子和基底粒料之间提供了良好的粘结耐久性。因此，所得的光催化涂层具有相对长期的光催化性能，并且基本上不影响带涂层粒料的鲜明色彩和高光活性。具体地讲，本发明中的原硼酸或五水四硼酸钠(五水硼砂)的使用可以使光催化涂层的耐久性(根据实例部分中描述的涂层耐久性测试法进行测量)高于约80％，更优选地高于约90％，最优选地约100％。为了获得提高的耐久性，涂料组合物中的硼酸、硼酸盐、或它们的组合的固体重量百分比通常大于约0.1％。优选的重量百分比大于约10％，最优选的百分比大于约20％。
通过向涂料组合物中添加烷氧基硅烷也可以提高光催化涂层的耐久性，如提交于2006年12月22日的3M专利申请No.62043US002中所公开，该专利申请的全文以引用的方式并入本文。
涂料组合物中可以加入颜料以得到所需的颜色。合适的颜料包括传统颜料，例如炭黑、氧化钛、氧化铬、氧化铁黄、酞菁绿和酞菁蓝、群青蓝、氧化铁红、金属铁氧体、以及它们的组合。
本发明的光催化涂层可以是透明的，如提交于2006年12月22日的3M专利申请No.62618US002中所公开，该专利申请的全文以引用的方式并入本文。
实例
将参照下面的详细实例进一步描述本发明的操作。提供这些实例以进一步说明各种具体的和优选的实施例和技术。然而，应当理解，可以在不脱离本发明的范围的前提下进行多种变型和更改。
光催化活性测试
用-16/+20的网孔筛选粒料，再用去离子水洗涤5次，然后在240℉(约116℃)下干燥约20分钟。将40g干燥粒料放入500ml的结晶皿中。然后将500g4x10-4M的对苯二甲酸二钠水溶液加入结晶皿。用置于水下小培养皿中的、由结晶皿下的磁力搅拌器驱动的搅拌棒搅拌混合物。用通过两个特殊设计的镇流器(Action Labs,Woodville,WI)供电的4个等间距、4英尺(1.2米)长的紫光灯泡(Sylvania350BL40W F40/350BL)组成阵列，将混合物暴露于该阵列产生的紫外光。调整灯泡的高度以提供约2.3mW/cm2的紫外光通量，紫外光通量用配备波长带为320至390nm的UVA365型辐射计(UVA Model365Radiometer,Solar Light Company,Glenside,PA)的VWR21800-016型紫外光度计(VWR Model21800-016UVLight Meter,VWR International,West Chester,PA)测量。
照射期间，每隔约5分钟用吸移管移除约3ml混合物，并转移至一次性4窗口的聚甲基丙烯酸甲酯比色杯或石英比色杯。然后将比色杯中的混合物放入Fluoromax-3分光荧光计(Jobin Yvon,Edison,NJ)。作出在314nm激发波长和424nm发射波长下测量的荧光强度与照射时间的曲线。曲线的线性部分(初始的3至5个数据点)的斜率可以表示混合物的光催化活性。该斜率与对苯二甲酸二钠水溶液的斜率的对比可作为所记录的粒料的相对光活性。通常，记录的值越大，粒料的光活性也越高。
涂层耐久性测试法：
用-16/+20的网孔筛选粒料，不洗涤。将50g粒料加入4盎司玻璃广口瓶中。将广口瓶置于与地平面呈约17度倾斜角的电动滚转机(得自Bodine Electric Company,Chicago,IL)上，并以约35rpm的速度滚转1小时。用去离子水洗涤滚转后的粒料，然后按照上述光催化活性测试测量其光活性。同样测量未滚转的粒料的光活性。将滚转后的粒料与未滚转的粒料的光活性比率(以百分比表示)记录为“耐久性”。该比率越高，则涂层的耐久性越好。
工作实例1-3以及比较例A和B
按照如下所述制备工作实例1的样品。向250ml的容器加入2.00gTiO2的水分散体(W2730X，30重量％，得自Degussa AG,Dusseldorf,Germany的实验产品)，31.80g去离子水，1.44g硅酸钾(硅酸钾Kasil1，28.91重量％，含有2.47重量％比率的SiO2/K2O，得自PQ Corporation,Valley Forge,PA)，以及18.20g0.5重量％的原硼酸水溶液(纯度99％，得自Sigma-Aldrich,St.Louis,MO)，并充分搅拌。然后将所得的混合物缓慢倒在已经预加热至210℉(约99℃)一小时并且正在搅拌的1000gWA7100粒料(未处理过，得自3M公司，St.Paul,MN)上。倾倒时，搅拌粒料以确保获得均匀的涂层。继续搅拌粒料约2分钟。然后用热风枪加热粒料直到它们显得干燥并且松散。将干燥的粒料放入回转窑中用天然气/氧气火焰灼烧至600℉(约316℃)，然后将其移出并且冷却至室温。采用相同的工序制备工作实例2和3的样品，只是所用的涂料组合物不同。同样，采用相同的工序制备比较例A和B的样品，只是不使用原硼酸。表1中列出工作实例1-3以及比较例A和B的光催化涂层的组成。
根据上述测试工序测量冷却粒料的耐久性，并已记录在表1中。结果显示原硼酸与硅酸钾的结合使用获得了极好的耐久性。此外，结果显示原硼酸的使用显著地提高了光活性。
表1
工作实例1-3以及比较例A和B的光催化涂层的组成和带涂层粒料的耐久性。
工作实例4-6
采用与制备工作实例1的样品相同的工序制备工作实例4-6的样品。表2中列出了工作实例4-6的光催化涂层的组成(为了进行比较，还列出了比较例A和B的组成)。与工作实例1相比，使用五水四硼酸钠(五水硼砂)代替原硼酸。具体地讲，使用2重量％的五水四硼酸钠水溶液(五水硼砂ETIBOR48(Borax Pentahydrate ETIBOR48)，得自American BorateCompany,Virginia Beach,Virginia)。
测量带涂层粒料的耐久性并记录在表2中(为了进行比较，还列出了比较例A和B的耐久性)。结果显示五水四硼酸钠(五水硼砂)与硅酸钾的结合使用获得了很好的耐久性。此外，结果显示五水四硼酸钠(五水硼砂)的使用显著地提高了光活性。
表2
工作实例4-6的光催化涂层的组成和带涂层粒料的耐久性(为了进行比较，还列出了比较例A和B的组成和耐久性)。
上述的测试和测试结果只是出于说明目的，而不是为了预测，并且测试工序的变化可能生成不同的结果。本发明的描述结合了本发明的几个实施例。提供上述详细说明及实例仅为清楚地理解本发明。不应理解为由此构成任何不必要的限制。本文引用的所有专利和专利申请均以引用方式并入本文。对本领域内的技术人员来说显而易见的是，可以在不脱离本发明的范围的前提下对实施例进行多种修改。因此，本发明的范围不应限定于本文所述的精确细节和结构，而应受权利要求书的文字所描述的结构及这些结构的等同物所限定。
Claims (16)
1.一种带涂层的制品，包括：
具有外表面的屋顶粒料和在所述屋顶粒料的所述外表面上的涂层，其中所述涂层由包含光催化粒子和碱金属硅酸盐粘结剂的组合物形成，其中所述碱金属硅酸盐粘结剂还包含五水四硼酸钠，其中所述光催化粒子的固体重量百分比介于30％和80％之间，所述五水四硼酸钠的固体重量百分比大于10％；并且
与由在其中不使用五水四硼酸钠的类似组合物形成的涂层相比，所述涂层的光活性有所提高。
2.根据权利要求1所述的带涂层的制品，其中所述光催化粒子包括：TiO2、ZnO、WO3、SnO2、CaTiO3、Fe2O3、MoO3、Nb2O5、TixZr(1-x)O2、SiC、SrTiO3、CdS、GaP、InP、GaAs、BaTiO3、KNbO3、Ta2O5、Bi2O3、NiO、Cu2O、SiO2、MoS2、InPb、RuO2、CeO2、Ti(OH)4、或它们的组合。
3.根据权利要求1所述的带涂层的制品，其中所述光催化粒子包括：
结晶锐钛矿型TiO2、结晶金红石型TiO2、结晶ZnO、或它们的组合。
4.根据权利要求1所述的带涂层的制品，其中所述光催化粒子掺杂有C、N、S、F、Pt、Pd、Au、Ag、Os、Rh、RuO2、Nb、Cu、Sn、Ni、Fe、或它们的组合。
5.根据权利要求1所述的带涂层的制品，其中采用所述涂层耐久性测试法测得所述涂层的耐久性大于80％。
6.根据权利要求1所述的带涂层的制品，其中所述碱金属硅酸盐粘结剂包含硅酸锂、硅酸钠、硅酸钾、或它们的组合。
7.根据权利要求1所述的带涂层的制品，其中所述碱金属硅酸盐粘结剂还包含颜料。
8.一种带涂层的屋顶粒料，包括：
具有外表面的屋顶粒料和在所述屋顶粒料的所述外表面上的涂层，其中所述涂层由包含光催化TiO2粒子和碱金属硅酸盐粘结剂的组合物形成，其中所述碱金属硅酸盐粘结剂还包含五水四硼酸钠，其中所述光催化粒子的固体重量百分比介于30％和80％之间，所述五水四硼酸钠的固体重量百分比大于10％，并且采用所述涂层耐久性测试法测得所述涂层的耐久性大于80％，
与由在其中不使用五水四硼酸钠的类似组合物形成的涂层相比，所述涂层的光活性有所提高。
9.一种制备带涂层的制品的方法，包括：
提供具有外表面的屋顶粒料；
提供包含光催化粒子和碱金属硅酸盐粘结剂的组合物，其中所述碱金属硅酸盐粘结剂还包含五水四硼酸钠，其中所述光催化粒子的固体重量百分比介于30％和80％之间，所述五水四硼酸钠的固体重量百分比大于10％；
将所述组合物沉积到所述屋顶粒料上；以及
加热所述沉积的屋顶粒料以在其上形成涂层，
其中，与由在其中不使用五水四硼酸钠的类似组合物形成的涂层相比，所述涂层的光活性有所提高。
10.根据权利要求9所述的方法，其中所述光催化粒子包括：TiO2、ZnO、WO3、SnO2、CaTiO3、Fe2O3、MoO3、Nb2O5、TixZr(1-x)O2、SiC、SrTiO3、CdS、GaP、InP、GaAs、BaTiO3、KNbO3、Ta2O5、Bi2O3、NiO、Cu2O、SiO2、MoS2、InPb、RuO2、CeO2、Ti(OH)4、或它们的组合。
11.根据权利要求9所述的方法，其中所述光催化粒子包括：结晶锐钛矿型TiO2、结晶金红石型TiO2、结晶ZnO、或它们的组合。
12.根据权利要求9所述的方法，其中所述光催化粒子掺杂有C、N、S、F、Pt、Pd、Au、Ag、Os、Rh、RuO2、Nb、Cu、Sn、Ni、Fe、或它们的组合。
13.根据权利要求9所述的方法，其中采用所述涂层耐久性测试法测得所述涂层的耐久性大于80％。
14.根据权利要求9所述的方法，其中所述碱金属硅酸盐粘结剂包含硅酸锂、硅酸钠、硅酸钾、或它们的组合。
15.根据权利要求9所述的方法，其中所述碱金属硅酸盐粘结剂还包含颜料。
16.一种制备带涂层的屋顶粒料的方法，包括：
提供具有外表面的屋顶粒料；
提供包含光催化TiO2粒子和碱金属硅酸盐粘结剂的组合物，其中所述碱金属硅酸盐粘结剂还包含五水四硼酸钠，其中所述光催化粒子的固体重量百分比介于30％和80％之间，所述五水四硼酸钠的固体重量百分比大于10％；
将所述组合物沉积到所述屋顶粒料上；以及
加热所述沉积的屋顶粒料以在其上形成涂层，其中采用所述涂层耐久性测试法测得所述涂层的耐久性大于80％，
其中，与由在其中不使用五水四硼酸钠的类似组合物形成的涂层相比，所述涂层的光活性有所提高。
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114641598A (zh) * | 2019-11-18 | 2022-06-17 | 3M创新有限公司 | 具有光催化涂层的陶瓷粒料及其制备方法 |
Also Published As
| Publication number | Publication date |
|---|---|
| EP2106288B1 (en) | 2021-03-31 |
| EP2106288A1 (en) | 2009-10-07 |
| CA2672749C (en) | 2016-06-14 |
| BRPI0719415B1 (pt) | 2018-08-28 |
| BRPI0719415A2 (pt) | 2014-03-18 |
| US8993471B2 (en) | 2015-03-31 |
| EP2106288A4 (en) | 2010-09-29 |
| US20100152030A1 (en) | 2010-06-17 |
| WO2008079756A1 (en) | 2008-07-03 |
| CN101563151A (zh) | 2009-10-21 |
| CA2672749A1 (en) | 2008-07-03 |
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