CN115232485B - Vermiculite ultraviolet blocking material and preparation method and application thereof - Google Patents
Vermiculite ultraviolet blocking material and preparation method and application thereof Download PDFInfo
- Publication number
- CN115232485B CN115232485B CN202210826662.9A CN202210826662A CN115232485B CN 115232485 B CN115232485 B CN 115232485B CN 202210826662 A CN202210826662 A CN 202210826662A CN 115232485 B CN115232485 B CN 115232485B
- Authority
- CN
- China
- Prior art keywords
- vermiculite
- blocking material
- ultraviolet blocking
- ultraviolet
- carrying
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- 239000010455 vermiculite Substances 0.000 title claims abstract description 131
- 229910052902 vermiculite Inorganic materials 0.000 title claims abstract description 131
- 235000019354 vermiculite Nutrition 0.000 title claims abstract description 131
- 239000000463 material Substances 0.000 title claims abstract description 97
- 230000000903 blocking effect Effects 0.000 title claims abstract description 91
- 238000002360 preparation method Methods 0.000 title claims abstract description 18
- 239000011259 mixed solution Substances 0.000 claims abstract description 22
- 239000002243 precursor Substances 0.000 claims abstract description 22
- 238000003756 stirring Methods 0.000 claims abstract description 21
- 238000006243 chemical reaction Methods 0.000 claims abstract description 16
- 238000005406 washing Methods 0.000 claims abstract description 16
- 150000001768 cations Chemical class 0.000 claims abstract description 13
- 239000012535 impurity Substances 0.000 claims abstract description 13
- 229910052751 metal Inorganic materials 0.000 claims abstract description 13
- 239000002184 metal Substances 0.000 claims abstract description 13
- 239000003513 alkali Substances 0.000 claims abstract description 12
- 239000007864 aqueous solution Substances 0.000 claims abstract description 12
- 230000001276 controlling effect Effects 0.000 claims abstract description 11
- 238000009830 intercalation Methods 0.000 claims abstract description 10
- 230000002687 intercalation Effects 0.000 claims abstract description 10
- 239000002904 solvent Substances 0.000 claims abstract description 10
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 9
- 230000001105 regulatory effect Effects 0.000 claims abstract description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 8
- 238000005216 hydrothermal crystallization Methods 0.000 claims abstract description 6
- 238000000926 separation method Methods 0.000 claims abstract description 5
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 claims description 30
- HSJPMRKMPBAUAU-UHFFFAOYSA-N cerium(3+);trinitrate Chemical compound [Ce+3].[O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O HSJPMRKMPBAUAU-UHFFFAOYSA-N 0.000 claims description 24
- ONDPHDOFVYQSGI-UHFFFAOYSA-N zinc nitrate Chemical compound [Zn+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O ONDPHDOFVYQSGI-UHFFFAOYSA-N 0.000 claims description 24
- 229920003023 plastic Polymers 0.000 claims description 22
- 239000004033 plastic Substances 0.000 claims description 22
- 239000006185 dispersion Substances 0.000 claims description 13
- 239000000243 solution Substances 0.000 claims description 13
- KJFMBFZCATUALV-UHFFFAOYSA-N phenolphthalein Chemical compound C1=CC(O)=CC=C1C1(C=2C=CC(O)=CC=2)C2=CC=CC=C2C(=O)O1 KJFMBFZCATUALV-UHFFFAOYSA-N 0.000 claims description 12
- 239000000047 product Substances 0.000 claims description 12
- 239000010426 asphalt Substances 0.000 claims description 11
- -1 coatings Substances 0.000 claims description 11
- 238000000034 method Methods 0.000 claims description 9
- 239000000203 mixture Substances 0.000 claims description 9
- XJDNKRIXUMDJCW-UHFFFAOYSA-J titanium tetrachloride Chemical compound Cl[Ti](Cl)(Cl)Cl XJDNKRIXUMDJCW-UHFFFAOYSA-J 0.000 claims description 9
- ALYNCZNDIQEVRV-UHFFFAOYSA-N 4-aminobenzoic acid Chemical compound NC1=CC=C(C(O)=O)C=C1 ALYNCZNDIQEVRV-UHFFFAOYSA-N 0.000 claims description 8
- DCKVFVYPWDKYDN-UHFFFAOYSA-L oxygen(2-);titanium(4+);sulfate Chemical compound [O-2].[Ti+4].[O-]S([O-])(=O)=O DCKVFVYPWDKYDN-UHFFFAOYSA-L 0.000 claims description 8
- 229910000348 titanium sulfate Inorganic materials 0.000 claims description 8
- WBYWAXJHAXSJNI-VOTSOKGWSA-M .beta-Phenylacrylic acid Natural products [O-]C(=O)\C=C\C1=CC=CC=C1 WBYWAXJHAXSJNI-VOTSOKGWSA-M 0.000 claims description 6
- BTJIUGUIPKRLHP-UHFFFAOYSA-N 4-nitrophenol Chemical compound OC1=CC=C([N+]([O-])=O)C=C1 BTJIUGUIPKRLHP-UHFFFAOYSA-N 0.000 claims description 6
- WBYWAXJHAXSJNI-SREVYHEPSA-N Cinnamic acid Chemical compound OC(=O)\C=C/C1=CC=CC=C1 WBYWAXJHAXSJNI-SREVYHEPSA-N 0.000 claims description 6
- BELBBZDIHDAJOR-UHFFFAOYSA-N Phenolsulfonephthalein Chemical compound C1=CC(O)=CC=C1C1(C=2C=CC(O)=CC=2)C2=CC=CC=C2S(=O)(=O)O1 BELBBZDIHDAJOR-UHFFFAOYSA-N 0.000 claims description 6
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 6
- 229930016911 cinnamic acid Natural products 0.000 claims description 6
- 235000013985 cinnamic acid Nutrition 0.000 claims description 6
- YIXJRHPUWRPCBB-UHFFFAOYSA-N magnesium nitrate Chemical compound [Mg+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O YIXJRHPUWRPCBB-UHFFFAOYSA-N 0.000 claims description 6
- WBYWAXJHAXSJNI-UHFFFAOYSA-N methyl p-hydroxycinnamate Natural products OC(=O)C=CC1=CC=CC=C1 WBYWAXJHAXSJNI-UHFFFAOYSA-N 0.000 claims description 6
- 239000002245 particle Substances 0.000 claims description 6
- 229960003531 phenolsulfonphthalein Drugs 0.000 claims description 6
- 239000005060 rubber Substances 0.000 claims description 6
- 239000000725 suspension Substances 0.000 claims description 6
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical group [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 claims description 4
- 229960004050 aminobenzoic acid Drugs 0.000 claims description 4
- 235000011114 ammonium hydroxide Nutrition 0.000 claims description 4
- 238000000576 coating method Methods 0.000 claims description 4
- 239000008247 solid mixture Substances 0.000 claims description 4
- BNGXYYYYKUGPPF-UHFFFAOYSA-M (3-methylphenyl)methyl-triphenylphosphanium;chloride Chemical compound [Cl-].CC1=CC=CC(C[P+](C=2C=CC=CC=2)(C=2C=CC=CC=2)C=2C=CC=CC=2)=C1 BNGXYYYYKUGPPF-UHFFFAOYSA-M 0.000 claims description 3
- NGDQQLAVJWUYSF-UHFFFAOYSA-N 4-methyl-2-phenyl-1,3-thiazole-5-sulfonyl chloride Chemical compound S1C(S(Cl)(=O)=O)=C(C)N=C1C1=CC=CC=C1 NGDQQLAVJWUYSF-UHFFFAOYSA-N 0.000 claims description 3
- 239000000975 dye Substances 0.000 claims description 3
- 238000000465 moulding Methods 0.000 claims description 3
- 239000004753 textile Substances 0.000 claims description 3
- 239000002023 wood Substances 0.000 claims description 3
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 claims description 2
- WUEJLIJBHMLYEH-UHFFFAOYSA-N [N+](=O)([O-])[O-].[Zn+2].[Cd+2].[N+](=O)([O-])[O-].[N+](=O)([O-])[O-].[N+](=O)([O-])[O-] Chemical compound [N+](=O)([O-])[O-].[Zn+2].[Cd+2].[N+](=O)([O-])[O-].[N+](=O)([O-])[O-].[N+](=O)([O-])[O-] WUEJLIJBHMLYEH-UHFFFAOYSA-N 0.000 claims description 2
- 239000000084 colloidal system Substances 0.000 claims description 2
- 238000001035 drying Methods 0.000 claims description 2
- 239000003960 organic solvent Substances 0.000 claims description 2
- 230000035484 reaction time Effects 0.000 claims description 2
- 239000007787 solid Substances 0.000 claims description 2
- OXLHZDMIQTYABS-UHFFFAOYSA-F titanium(4+) zirconium(4+) tetrasulfate Chemical compound [Ti+4].S(=O)(=O)([O-])[O-].[Zr+4].S(=O)(=O)([O-])[O-].S(=O)(=O)([O-])[O-].S(=O)(=O)([O-])[O-] OXLHZDMIQTYABS-UHFFFAOYSA-F 0.000 claims description 2
- NWONKYPBYAMBJT-UHFFFAOYSA-L zinc sulfate Chemical compound [Zn+2].[O-]S([O-])(=O)=O NWONKYPBYAMBJT-UHFFFAOYSA-L 0.000 claims description 2
- 229910000368 zinc sulfate Inorganic materials 0.000 claims description 2
- 229960001763 zinc sulfate Drugs 0.000 claims description 2
- 238000012986 modification Methods 0.000 abstract description 8
- 230000004048 modification Effects 0.000 abstract description 8
- 239000011229 interlayer Substances 0.000 abstract description 3
- 239000010419 fine particle Substances 0.000 abstract description 2
- 239000002981 blocking agent Substances 0.000 abstract 1
- 238000010521 absorption reaction Methods 0.000 description 15
- 239000002131 composite material Substances 0.000 description 11
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 description 9
- 239000004202 carbamide Substances 0.000 description 9
- 239000004743 Polypropylene Substances 0.000 description 8
- 229920001155 polypropylene Polymers 0.000 description 8
- 239000000843 powder Substances 0.000 description 8
- 239000000126 substance Substances 0.000 description 8
- 239000004372 Polyvinyl alcohol Substances 0.000 description 7
- 230000009286 beneficial effect Effects 0.000 description 7
- 229920002451 polyvinyl alcohol Polymers 0.000 description 7
- 239000011347 resin Substances 0.000 description 6
- 229920005989 resin Polymers 0.000 description 6
- 150000002500 ions Chemical class 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 238000010438 heat treatment Methods 0.000 description 4
- 238000000265 homogenisation Methods 0.000 description 4
- 238000010008 shearing Methods 0.000 description 4
- 238000001291 vacuum drying Methods 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 3
- 229910052500 inorganic mineral Inorganic materials 0.000 description 3
- 239000011707 mineral Substances 0.000 description 3
- 238000003786 synthesis reaction Methods 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 2
- 230000032683 aging Effects 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 239000011777 magnesium Substances 0.000 description 2
- 229910052749 magnesium Inorganic materials 0.000 description 2
- 239000002861 polymer material Substances 0.000 description 2
- 238000001556 precipitation Methods 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 238000001179 sorption measurement Methods 0.000 description 2
- 238000002834 transmittance Methods 0.000 description 2
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 description 1
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- YKTSYUJCYHOUJP-UHFFFAOYSA-N [O--].[Al+3].[Al+3].[O-][Si]([O-])([O-])[O-] Chemical compound [O--].[Al+3].[Al+3].[O-][Si]([O-])([O-])[O-] YKTSYUJCYHOUJP-UHFFFAOYSA-N 0.000 description 1
- 239000011358 absorbing material Substances 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 230000000844 anti-bacterial effect Effects 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- XIEPJMXMMWZAAV-UHFFFAOYSA-N cadmium nitrate Inorganic materials [Cd+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O XIEPJMXMMWZAAV-UHFFFAOYSA-N 0.000 description 1
- 238000005341 cation exchange Methods 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 238000004132 cross linking Methods 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000032798 delamination Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- SWXVUIWOUIDPGS-UHFFFAOYSA-N diacetone alcohol Natural products CC(=O)CC(C)(C)O SWXVUIWOUIDPGS-UHFFFAOYSA-N 0.000 description 1
- GDVKFRBCXAPAQJ-UHFFFAOYSA-A dialuminum;hexamagnesium;carbonate;hexadecahydroxide Chemical compound [OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[Mg+2].[Mg+2].[Mg+2].[Mg+2].[Mg+2].[Mg+2].[Al+3].[Al+3].[O-]C([O-])=O GDVKFRBCXAPAQJ-UHFFFAOYSA-A 0.000 description 1
- 238000010292 electrical insulation Methods 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 229910001385 heavy metal Inorganic materials 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 229910001701 hydrotalcite Inorganic materials 0.000 description 1
- 229960001545 hydrotalcite Drugs 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-M hydroxide Chemical compound [OH-] XLYOFNOQVPJJNP-UHFFFAOYSA-M 0.000 description 1
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 1
- XLSMFKSTNGKWQX-UHFFFAOYSA-N hydroxyacetone Chemical compound CC(=O)CO XLSMFKSTNGKWQX-UHFFFAOYSA-N 0.000 description 1
- 229910003471 inorganic composite material Inorganic materials 0.000 description 1
- 239000011147 inorganic material Substances 0.000 description 1
- 239000012774 insulation material Substances 0.000 description 1
- 238000005342 ion exchange Methods 0.000 description 1
- 239000010410 layer Substances 0.000 description 1
- 239000008204 material by function Substances 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- 239000010445 mica Substances 0.000 description 1
- 229910052618 mica group Inorganic materials 0.000 description 1
- 230000000051 modifying effect Effects 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- 150000002892 organic cations Chemical class 0.000 description 1
- 239000011368 organic material Substances 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- NMHMNPHRMNGLLB-UHFFFAOYSA-N phloretic acid Chemical compound OC(=O)CCC1=CC=C(O)C=C1 NMHMNPHRMNGLLB-UHFFFAOYSA-N 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229920000915 polyvinyl chloride Polymers 0.000 description 1
- 239000004800 polyvinyl chloride Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 239000012629 purifying agent Substances 0.000 description 1
- 230000006798 recombination Effects 0.000 description 1
- 238000005215 recombination Methods 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 230000008961 swelling Effects 0.000 description 1
- 238000010189 synthetic method Methods 0.000 description 1
- 230000009967 tasteless effect Effects 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
- ZXAUZSQITFJWPS-UHFFFAOYSA-J zirconium(4+);disulfate Chemical compound [Zr+4].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O ZXAUZSQITFJWPS-UHFFFAOYSA-J 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09C—TREATMENT OF INORGANIC MATERIALS, OTHER THAN FIBROUS FILLERS, TO ENHANCE THEIR PIGMENTING OR FILLING PROPERTIES ; PREPARATION OF CARBON BLACK ; PREPARATION OF INORGANIC MATERIALS WHICH ARE NO SINGLE CHEMICAL COMPOUNDS AND WHICH ARE MAINLY USED AS PIGMENTS OR FILLERS
- C09C1/00—Treatment of specific inorganic materials other than fibrous fillers; Preparation of carbon black
- C09C1/28—Compounds of silicon
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K7/00—Use of ingredients characterised by shape
- C08K7/22—Expanded, porous or hollow particles
- C08K7/24—Expanded, porous or hollow particles inorganic
- C08K7/26—Silicon- containing compounds
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K9/00—Use of pretreated ingredients
- C08K9/02—Ingredients treated with inorganic substances
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K9/00—Use of pretreated ingredients
- C08K9/04—Ingredients treated with organic substances
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09C—TREATMENT OF INORGANIC MATERIALS, OTHER THAN FIBROUS FILLERS, TO ENHANCE THEIR PIGMENTING OR FILLING PROPERTIES ; PREPARATION OF CARBON BLACK ; PREPARATION OF INORGANIC MATERIALS WHICH ARE NO SINGLE CHEMICAL COMPOUNDS AND WHICH ARE MAINLY USED AS PIGMENTS OR FILLERS
- C09C3/00—Treatment in general of inorganic materials, other than fibrous fillers, to enhance their pigmenting or filling properties
- C09C3/006—Combinations of treatments provided for in groups C09C3/04 - C09C3/12
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09C—TREATMENT OF INORGANIC MATERIALS, OTHER THAN FIBROUS FILLERS, TO ENHANCE THEIR PIGMENTING OR FILLING PROPERTIES ; PREPARATION OF CARBON BLACK ; PREPARATION OF INORGANIC MATERIALS WHICH ARE NO SINGLE CHEMICAL COMPOUNDS AND WHICH ARE MAINLY USED AS PIGMENTS OR FILLERS
- C09C3/00—Treatment in general of inorganic materials, other than fibrous fillers, to enhance their pigmenting or filling properties
- C09C3/04—Physical treatment, e.g. grinding, treatment with ultrasonic vibrations
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09C—TREATMENT OF INORGANIC MATERIALS, OTHER THAN FIBROUS FILLERS, TO ENHANCE THEIR PIGMENTING OR FILLING PROPERTIES ; PREPARATION OF CARBON BLACK ; PREPARATION OF INORGANIC MATERIALS WHICH ARE NO SINGLE CHEMICAL COMPOUNDS AND WHICH ARE MAINLY USED AS PIGMENTS OR FILLERS
- C09C3/00—Treatment in general of inorganic materials, other than fibrous fillers, to enhance their pigmenting or filling properties
- C09C3/06—Treatment with inorganic compounds
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09C—TREATMENT OF INORGANIC MATERIALS, OTHER THAN FIBROUS FILLERS, TO ENHANCE THEIR PIGMENTING OR FILLING PROPERTIES ; PREPARATION OF CARBON BLACK ; PREPARATION OF INORGANIC MATERIALS WHICH ARE NO SINGLE CHEMICAL COMPOUNDS AND WHICH ARE MAINLY USED AS PIGMENTS OR FILLERS
- C09C3/00—Treatment in general of inorganic materials, other than fibrous fillers, to enhance their pigmenting or filling properties
- C09C3/08—Treatment with low-molecular-weight non-polymer organic compounds
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/48—Stabilisers against degradation by oxygen, light or heat
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/08—Stabilised against heat, light or radiation or oxydation
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
- Silicates, Zeolites, And Molecular Sieves (AREA)
Abstract
The invention discloses a vermiculite ultraviolet blocking material, a preparation method and application thereof, wherein the preparation method comprises the following steps: expanding vermiculite, washing with water to remove impurities, crushing, adding a metal cation solvent, adding an organic intercalation agent to obtain a mixed solution, adding alkali liquor, rapidly stirring, controlling the pH value of the mixed solution, regulating the adding speed of the alkali liquor, reacting at a certain temperature, stopping the reaction when the pH value is not reduced, and centrifugally separating to obtain a vermiculite ultraviolet blocking material precursor; and (3) centrifugally washing the vermiculite ultraviolet blocking material precursor for 3-5 times, then ultrasonically dispersing the vermiculite ultraviolet blocking material precursor in the aqueous solution, putting the aqueous solution into a hydrothermal kettle, carrying out hydrothermal crystallization reaction, and carrying out high-speed centrifugal separation to obtain the vermiculite ultraviolet blocking material. According to the invention, the organic and inorganic blocking agents are implanted in the vermiculite laminate or interlayer, so that the surface modification and preparation of fine-particle vermiculite are realized, and the ultraviolet blocking material with full ultraviolet wavelength is constructed.
Description
Technical Field
The invention relates to the technical field of composite material synthesis, in particular to a vermiculite ultraviolet blocking material, a preparation method and application thereof.
Background
Vermiculite is one of nonmetallic minerals with better resource prospect and potential advantage in China, is an important nonmetallic mineral, is also a magnesium-containing water aluminum silicate secondary metamorphic mineral with a layered structure, belongs to layered silicate, and is low in cost and easy to obtain. Vermiculite can resist high temperature, is a bad conductor of heat, and has good electrical insulation property; expanded vermiculite is prone to water absorption and hygroscopicity; swelling at high temperature and easy peeling. Vermiculite has the characteristics of better interlayer cation exchange capacity, expansibility, adsorption capacity, sound insulation, heat insulation, fire resistance, freezing resistance and the like, has stable chemical properties, is insoluble in water, is nontoxic, tasteless and free of side effects, and is mainly used for treating waste water containing heavy metals and organic cations, preparing antibacterial materials and heat insulation materials, vermiculite filter aids, purifying agents, organic vermiculite and the like by utilizing the good adsorption performance and ion exchange performance of the vermiculite.
The wavelength range of ultraviolet rays is 200-400nm, the corresponding energy is 3.1-6.2eV, and the chemical bond energy of most materials is in the range, so that the ultraviolet rays can destroy chemical bonds in materials such as textiles, wood, dyes, paint, asphalt, rubber, plastics and the like, thereby causing ageing of the materials, especially high polymer materials such as asphalt, rubber, plastics and the like, and recombination can occur after the chemical bonds are destroyed, thereby causing molecular chain extension, increasing the crosslinking degree, affecting the physical and chemical properties of the materials, and further affecting the physical and mechanical properties of the materials. Particularly, due to the occurrence of ozone holes, more high-energy ultraviolet rays (UV-B and partial UV-A) reach the surface of the earth, so that the ultraviolet aging of the high polymer material is more serious. The destruction of the material by uv light causes immeasurable economic losses each year, and therefore uv blocking materials have been one of the focus and focus of research by researchers.
There are two ultraviolet blocking materials in the prior art: 1) The organic ultraviolet blocking material is unstable, has poor effect, is easy to decompose and has not long performance; 2) Inorganic substances have single functions, and are difficult to meet the full-wavelength ultraviolet absorption. The vermiculite is a layered material, mainly comprises elements such as silicon, magnesium, aluminum and the like, and also contains titanium, but has limited ultraviolet blocking performance.
Therefore, research on the preparation of the vermiculite ultraviolet blocking material has important practical significance.
Disclosure of Invention
In view of the above, the invention provides a vermiculite ultraviolet blocking material, a preparation method and application thereof, and the preparation process is simple, easy to popularize and has obvious economic value.
In order to achieve the above purpose, the present invention adopts the following technical scheme:
the preparation method of the vermiculite ultraviolet blocking material comprises the following preparation steps:
1) Expanding raw ore vermiculite, and washing the expanded vermiculite with water to remove impurities;
2) Crushing the expanded vermiculite treated in the step 1), and then adding a metal cation solvent; adding a certain amount of organic intercalation agent to obtain a mixed solution, adding alkali liquor, rapidly stirring, regulating the adding speed of the alkali liquor by controlling the pH value of the mixed solution to be 7.5-9, reacting at a certain temperature, stopping the reaction when the pH value is not reduced and is kept to be 7.5-9, and centrifugally separating to obtain a solid colloid, namely a vermiculite ultraviolet blocking material precursor;
3) And (3) centrifugally washing the vermiculite ultraviolet blocking material precursor obtained in the step (2) for 3-5 times, then ultrasonically dispersing the vermiculite ultraviolet blocking material precursor in an aqueous solution, putting the aqueous solution into a hydrothermal kettle, carrying out hydrothermal crystallization reaction, and carrying out high-speed centrifugal separation to obtain the vermiculite ultraviolet blocking material product.
The beneficial effect of adopting above-mentioned technical scheme: because the ultraviolet blocking performance of vermiculite is limited, the invention inserts inorganic and organic materials with ultraviolet absorption function between the expanded vermiculite layers by a synthetic method, thereby constructing a novel composite ultraviolet blocking material, and simultaneously, the vermiculite ultraviolet blocking composite functional material with excellent ultraviolet blocking performance is prepared by utilizing the reflection of a vermiculite laminate.
According to the invention, alkali liquor is added to enable a metal cation solvent to react with the alkali liquor to generate metal oxides, different functional materials are prepared by regulating and controlling the structure, and the pH value is 7.5-9 mainly because the layered product is prepared, the precipitation cannot be generated due to low pH value, the precipitation is generated due to too high pH value, and the layered product cannot be obtained due to too large particles.
Further, in step 1), the water washing is to remove the impurities by dissolving the expanded vermiculite in water and using the difference in densities of the expanded vermiculite and the impurities (e.g. mica) to generate delamination;
preferably, the expanded vermiculite in step 2) is crushed to a particle size of 200-2000 mesh, and the smaller the particle size, the better the ultraviolet blocking effect. The smaller the particles, the better the dispersion in the various materials will be and the better the effect. The smaller the particles, the better the product modification and the better the properties of the product produced. And to nano-dimensions, there is also a nano-effect.
Preferably, the metal cation solvent in the step 2) is one or a mixed solution of several of titanium chloride, titanium sulfate, zinc nitrate, cerium nitrate, titanium zirconium sulfate, aluminum nitrate, magnesium nitrate, zinc cadmium nitrate and yttrium nitrate solution; the organic intercalation agent is one or more mixed solution of phenolphthalein, phenol red, p-nitrophenol, cinnamic acid and p-aminobenzoic acid.
The beneficial effect of adopting above-mentioned technical scheme: the titanium chloride, zinc nitrate, titanium sulfate, cerium nitrate, phenolphthalein, phenol red, p-nitrophenol, cinnamic acid and p-aminobenzoic acid all have ultraviolet blocking performance, and after the titanium chloride, zinc nitrate, titanium sulfate, cerium nitrate, phenolphthalein, phenol red, p-nitrophenol, cinnamic acid and p-aminobenzoic acid are compounded with the expanded vermiculite, the ultraviolet blocking performance is obviously enhanced.
Preferably, the metal cation solvent is a mixed solution of zinc nitrate and cerium nitrate, and zinc nitrate: the molar ratio of cerium nitrate is 2:1; the metal cation solvent is a mixed solution of titanium chloride or titanium sulfate and zinc nitrate, cerium nitrate, zinc nitrate: cerium nitrate: the molar ratio of titanium chloride or titanium sulfate is 4:1:0.5.
The beneficial effect of adopting above-mentioned technical scheme: the layered hydroxide hydrotalcite LDHs laminate has positive charges mainly caused by different electrovalence metal cations of the laminate, and the optimal ratio of divalent ions to trivalent ions is 2 from the aspect of crystal structure: 1, the optimal ratio of divalent ions to tetravalent ions is 4:1. preferably, the concentration of the metal cations in the step 2) is 0.0001-0.01 mol/L, and the mass-volume ratio of the expanded vermiculite to the metal cation solvent is 1-50:1. The optimal concentration is: 0.002mol/L.
The beneficial effect of adopting above-mentioned technical scheme: the modification of vermiculite is realized by low concentration, the consumption of ions is reduced, the cost is reduced, and the main body of the vermiculite is truly embodied.
Preferably, the mass ratio of the expanded vermiculite to the organic intercalation agent in the step 2) is 1:0.00001-0.1.
The beneficial effect of adopting above-mentioned technical scheme: intercalation modification of inorganic substances is achieved using small amounts of organic substances.
Preferably, the concentration of titanium chloride in the step 2) is 0.00001 to 0.01mol/L, and the concentrations of zinc nitrate, zinc sulfate and cerium nitrate are all 0.00001 to 0.005mol/L.
Preferably, the concentration of the organic intercalation agent added in the step 2) is 0.001-0.00001 mol/L.
Preferably, the alkali liquor added in the step 2) is ammonia water or sodium hydroxide solution or potassium hydroxide solution; the concentration of the alkali liquor is 0.00001-2 mol/L, and the reaction temperature is 20-60 ℃. The best is:
preferably, the mass ratio of the vermiculite ultraviolet blocking material precursor to the aqueous solution in the step 3) is 1:5-200 parts; the hydrothermal crystallization reaction temperature is 95-195 ℃ and the reaction time is 3-80 hours.
The invention also discloses application of the vermiculite ultraviolet blocking material in preparing ultraviolet-resistant plastic products, textiles, wood, dyes, coatings, asphalt and rubber.
The application method of the vermiculite ultraviolet blocking material in preparing ultraviolet-resistant plastic products comprises the following steps: adding a vermiculite ultraviolet blocking material into an acetone organic solvent, stirring, carrying out ultrasonic and centrifugal washing for 3-5 times, adding acetone, carrying out stirring ultrasonic assisted dispersion, adding the mixture into an organic plastic material, carrying out stirring ultrasonic assisted dispersion to obtain a uniform suspension, carrying out high-speed centrifugal separation to obtain a mixture of the vermiculite ultraviolet blocking material and the organic plastic material, and drying the mixture to obtain a uniform solid mixture; and then preparing and molding the solid mixture to obtain the ultraviolet-resistant plastic product.
Preferably, the organic plastic material is polypropylene powder or molten asphalt or polyvinyl alcohol (PVA) or polyethylene or polyvinyl chloride or mulching film or greenhouse film.
Preferably, the adding ratio of the vermiculite ultraviolet blocking material to the organic plastic material is 1-60: 100.
compared with the prior art, the invention has the following beneficial effects:
1. according to the invention, the organic and inorganic ultraviolet blocking materials are inserted into the vermiculite laminate or interlayer, so that the surface modification and preparation of fine-particle vermiculite are realized, and the ultraviolet blocking material with full ultraviolet wavelength is constructed; meanwhile, ultraviolet reflection and absorption are realized through the laminate structure of the vermiculite; the preparation process disclosed by the invention is simple in steps, easy to operate and wide in application range, realizes deep processing and utilization of vermiculite, and has a profound effect on the development of the field;
2. the vermiculite is cheap and easy to obtain, has a layered structure, has hydroxyl groups on a laminate, and is easy to combine with organic matters through hydrogen bonds to form a stable organic-inorganic composite material;
3. the vermiculite has strong ultraviolet absorption capacity and is easy to construct an ultraviolet absorption material;
4. the vermiculite ultraviolet absorbing material constructed by synthesis has stable structure and is easy to apply;
5. the intercalated organic molecules have the modifying effect, are beneficial to being used in organic matters, and achieve the aim of organic modification;
6. besides the ultraviolet blocking effect, the infrared blocking effect is also realized, and the mechanical property and the gas blocking property are obviously improved;
7. the surface modification of vermiculite is realized through synthesis, and the performance is comprehensively improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are required to be used in the embodiments or the description of the prior art will be briefly described below, and it is obvious that the drawings in the following description are only embodiments of the present invention, and that other drawings can be obtained according to the provided drawings without inventive effort for a person skilled in the art.
FIG. 1 is a graph showing the comparison of light transmission properties of PVA films prepared with the addition of different mass fractions of vermiculite UV barrier material.
Detailed Description
The technical solutions of the embodiments of the present invention will be clearly and completely described below in conjunction with the embodiments of the present invention, and it is apparent that the described embodiments are only some embodiments of the present invention, 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.
Example 1
Washing expanded vermiculite, removing impurities by using the density difference of the vermiculite and the impurities, shearing and crushing to 1000 meshes, taking 0.5g of expanded vermiculite powder, and putting the 0.001mol/L titanium chloride, 0.0005mol/L zinc nitrate and 0.0003mol/L cerium nitrate mixed solution into 50mL; adding phenolphthalein to make the concentration of phenolphthalein be 0.0001mol/L, rapidly stirring (3500 rpm), controlling the pH value of the mixed solution to be 8-9, regulating the adding speed of ammonia water, controlling the concentration of ammonia water to be 0.08mol/L, reacting at 20 ℃, stopping the reaction when the pH value is no longer reduced and the pH value is kept to be 8-9, and centrifugally separating to obtain a vermiculite ultraviolet blocking material precursor;
after the vermiculite ultraviolet blocking material precursor is centrifugally washed for 5 times, the precursor is ultrasonically dispersed in a certain aqueous solution with the concentration of 0.001mol/L, the mixture is put into a hydrothermal kettle, and the mixture is subjected to hydrothermal crystallization reaction for 25 hours at 115 ℃ and is centrifugally separated at a high speed, so that the vermiculite ultraviolet blocking material product is obtained.
Putting the vermiculite ultraviolet blocking material into an acetone solution, carrying out ultrasonic homogenization, separating, repeating for 5 times, adding acetone, carrying out stirring ultrasonic assisted dispersion, adding the mixture into polypropylene resin, carrying out stirring ultrasonic assisted dispersion to obtain a uniform suspension, carrying out vacuum drying, removing excessive acetone, and then heating to 100 ℃ for molding to obtain the polypropylene resin plastic containing the vermiculite ultraviolet blocking material.
The polypropylene resin plastic prepared by using the vermiculite ultraviolet blocking material containing vermiculite has obvious ultraviolet absorption in ultraviolet region, the passing rate of visible light is reduced from 99% to 95% from the adding amount of the expanded vermiculite to the polypropylene resin plastic without the ultraviolet blocking material of the expanded vermiculite, the ultraviolet absorption is improved by 96%, compared with the polypropylene resin plastic with the same vermiculite, the ultraviolet absorption is improved by 30%, the mechanical tensile property is improved by 28%, and the gas oxygen barrier is improved by 8%, so that the polypropylene resin plastic can be applied to polypropylene plastic or asphalt pavement.
Example 2
Washing expanded vermiculite, removing impurities by using the density difference of the vermiculite and the impurities, shearing and crushing to 1500 meshes, taking 50g of expanded vermiculite powder, and putting the 50g of expanded vermiculite powder into a mixed solution with the concentration of 0.001mol/L titanium sulfate, 0.0005mol/L magnesium nitrate and 0.0003mol/L cerium nitrate, wherein the mixed solution is 48mL; adding phenol red to make the concentration of the phenol red be 0.0001mol/L, adding urea to make the urea solution be 0.02mol/L, rapidly stirring (3500 rpm), controlling the pH value of the mixed solution to be 8-9, regulating the adding speed of the urea, reacting at 20 ℃, stopping the reaction when the pH value is not reduced any more and the pH value is kept to be 8-9, and centrifugally separating to obtain a vermiculite ultraviolet blocking material precursor;
after centrifugal washing for 5 times, the vermiculite ultraviolet blocking material precursor is dispersed in a certain aqueous solution by ultrasonic, the concentration is 0.001mol/L, the vermiculite ultraviolet blocking material precursor is put into a hydrothermal kettle, reacts for 18 hours at 150 ℃, and is taken out, washed and dried to obtain the vermiculite ultraviolet blocking material.
Putting the vermiculite ultraviolet blocking material into an acetone solution, carrying out ultrasonic homogenization, separating, repeating for 5 times, adding the acetone alcohol, carrying out stirring ultrasonic auxiliary dispersion, adding into the molten asphalt, carrying out stirring ultrasonic auxiliary dispersion to obtain a uniform suspension, carrying out vacuum drying, removing redundant acetone, heating to 200 ℃, and forming to obtain the asphalt containing the vermiculite ultraviolet blocking material.
The obtained coating containing the vermiculite ultraviolet blocking material has obvious ultraviolet absorption in ultraviolet region, and the ultraviolet absorption is increased by 28% compared with that of the coating without the vermiculite composite ultraviolet blocking material.
Example 3
Washing expanded vermiculite, removing impurities by using the density difference of the vermiculite and the impurities, shearing and crushing to 1800 meshes, taking 50g of vermiculite powder, and putting the vermiculite powder into a mixed solution with the concentration of 0.001mol/L zirconium sulfate, 0.0005mol/L zinc nitrate and 0.0003mol/L aluminum nitrate, wherein the mixed solution is 40mL; adding cinnamic acid to make the concentration of the cinnamic acid be 0.0001mol/L, adding urea to make the urea solution be 0.02mol/L, rapidly stirring (3500 rpm), controlling the pH value of the mixed solution to be 8-9, regulating the adding speed of the urea, reacting at 20 ℃, stopping the reaction when the pH value is not reduced any more and the pH value is kept to be 8-9, and centrifugally separating to obtain a vermiculite ultraviolet blocking material precursor;
after centrifugal washing for 5 times, the vermiculite ultraviolet blocking material precursor is dispersed in a certain aqueous solution by ultrasonic, the concentration is 0.001mol/L, the vermiculite ultraviolet blocking material precursor is put into a hydrothermal kettle, reacts for 20 hours at 180 ℃, and is taken out, washed and dried to obtain the vermiculite ultraviolet blocking material.
Putting the vermiculite ultraviolet blocking material into an acetone solution, carrying out ultrasonic homogenization, separating, repeating for 5 times, adding acetone, carrying out stirring ultrasonic assisted dispersion, adding into molten asphalt, carrying out stirring ultrasonic assisted dispersion to obtain a uniform suspension, carrying out vacuum drying, removing excessive acetone, heating to 230 ℃, and forming to obtain the asphalt containing the vermiculite ultraviolet blocking material.
The obtained plastic product containing the vermiculite ultraviolet blocking material has obvious ultraviolet absorption in ultraviolet region, and the ultraviolet absorption is increased by 27% compared with that of a plastic product without the vermiculite composite ultraviolet blocking material.
Example 4
Washing expanded vermiculite, removing impurities by using the density difference of the vermiculite and the impurities, shearing and crushing to 2000 meshes, taking 50g of vermiculite powder, and putting the vermiculite powder into a mixed solution with the concentration of 0.001mol/L titanium sulfate, 0.0005mol/L cadmium nitrate and 0.0003mol/L yttrium nitrate, wherein the mixed solution is 45mL; adding p-nitrophenol to make the concentration of p-nitrophenol 0.0001mol/L, adding urea to make the urea solution 0.02mol/L, quickly stirring (3500 rpm), controlling the pH value of the mixed solution to 8-9, regulating and controlling the adding speed of urea, making reaction at 20 deg.C, when the pH value is no longer reduced, and when the pH value is kept to 8-9, stopping reaction, centrifuging to obtain vermiculite ultraviolet blocking material precursor;
after centrifugal washing for 5 times, the vermiculite ultraviolet blocking material precursor is dispersed in a certain aqueous solution by ultrasonic, the concentration is 0.001mol/L, the vermiculite ultraviolet blocking material precursor is put into a hydrothermal kettle, reacts for 16 hours at 200 ℃, and is taken out, washed and dried to obtain the vermiculite composite ultraviolet blocking material.
Putting the vermiculite composite ultraviolet blocking material into an acetone solution, carrying out ultrasonic homogenization, separating, repeating for 5 times, adding acetone, carrying out stirring ultrasonic assisted dispersion, adding into molten asphalt, carrying out stirring ultrasonic assisted dispersion to obtain a uniform suspension, carrying out vacuum drying, removing redundant acetone, heating to 200 ℃, and forming to obtain the vermiculite composite ultraviolet blocking material.
The obtained rubber containing the vermiculite ultraviolet blocking material has obvious ultraviolet absorption in the ultraviolet region, and the ultraviolet absorption is improved by 29 percent compared with that of the rubber without the vermiculite composite ultraviolet blocking material.
Test examples
A comparison test is carried out on the vermiculite ultraviolet blocking material prepared in the embodiment 1 of the invention, PVA films with the addition amounts of 0%, 3%, 6%, 9% and 12% (mass) of the vermiculite ultraviolet blocking material are prepared, and a light transmission test is carried out on the prepared films. The results are shown in fig. 1 (light transmittance on the ordinate): the PVA film without the vermiculite composite ultraviolet blocking material has high light transmittance in the ultraviolet wavelength range, which indicates that the PVA film has no ultraviolet blocking performance, and the PVA film prepared by adding 3% of the vermiculite composite ultraviolet blocking material has obvious ultraviolet blocking performance and good visible light transmission.
In the present specification, each embodiment is described in a progressive manner, and each embodiment is mainly described in a different point from other embodiments, and identical and similar parts between the embodiments are all enough to refer to each other. For the device disclosed in the embodiment, since it corresponds to the method disclosed in the embodiment, the description is relatively simple, and the relevant points refer to the description of the method section.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. The preparation method of the vermiculite ultraviolet blocking material is characterized by comprising the following preparation steps:
1) Expanding raw ore vermiculite, and washing the expanded vermiculite with water to remove impurities;
2) Crushing the expanded vermiculite treated in the step 1), and then adding a metal cation solvent; adding a certain amount of organic intercalation agent to obtain a mixed solution, adding alkali liquor, rapidly stirring, regulating and controlling the adding speed of the alkali liquor by controlling the pH value of the mixed solution to 7.5-9, reacting at a certain temperature, stopping the reaction when the pH value is not reduced and is kept to 7.5-9, and centrifugally separating to obtain a solid colloid, namely a vermiculite ultraviolet blocking material precursor; the metal cation solvent is one or more of titanium chloride, zinc nitrate, titanium sulfate, cerium nitrate, zirconium titanium sulfate, aluminum nitrate, magnesium nitrate, zinc cadmium nitrate and yttrium nitrate solution; the organic intercalation agent is one or more mixed solution of phenolphthalein, phenol red, p-nitrophenol, cinnamic acid and p-aminobenzoic acid;
3) And (3) centrifugally washing the vermiculite ultraviolet blocking material precursor obtained in the step (2) for 3-5 times, then ultrasonically dispersing in an aqueous solution, putting the aqueous solution into a hydrothermal kettle, carrying out hydrothermal crystallization reaction, and carrying out high-speed centrifugal separation to obtain the vermiculite ultraviolet blocking material product.
2. The method for preparing a vermiculite ultraviolet blocking material according to claim 1, wherein the expanded vermiculite in step 2) is crushed to a particle size of 200-2000 mesh.
3. The method for preparing the vermiculite ultraviolet blocking material according to claim 2, wherein the concentration of metal cations in the step 2) is 0.0001-0.01 mol/L, and the mass-volume ratio of the expanded vermiculite to the metal cation solvent is 1-50 g/1 mL.
4. The method for preparing the vermiculite ultraviolet blocking material according to claim 2, wherein the mass ratio of the expanded vermiculite to the organic intercalation agent in the step 2) is 1:0.00001-0.1.
5. The method for preparing the vermiculite ultraviolet blocking material according to claim 2, wherein the concentration of titanium chloride in the step 2) is 0.00001-0.01 mol/L, and the concentrations of zinc nitrate, zinc sulfate and cerium nitrate are all 0.00001-0.005 mol/L.
6. The method for preparing the vermiculite ultraviolet blocking material according to claim 2, wherein the concentration of the organic intercalation agent added in the step 2) is 0.001-0.00001 mol/L; the added alkali liquor is ammonia water or sodium hydroxide solution or potassium hydroxide solution; the concentration of the alkali liquor is 0.00001-2 mol/L, and the reaction temperature is 20-60 ℃.
7. The method for preparing the vermiculite ultraviolet blocking material according to claim 1, wherein the mass ratio of the vermiculite ultraviolet blocking material precursor to the aqueous solution in the step 3) is 1:5-200 parts; the hydrothermal crystallization reaction temperature is 95-195 ℃ and the reaction time is 3-80 hours.
8. A vermiculite ultraviolet blocking material prepared according to the preparation method of any one of claims 1-7.
9. Use of the vermiculite uv blocking material of claim 8 for the preparation of uv resistant plastic products, textiles, wood, dyes, coatings, bitumen, rubber.
10. Use of the vermiculite uv blocking material according to claim 8 for the preparation of plastic articles, comprising the steps of: adding a vermiculite ultraviolet blocking material into an acetone organic solvent, stirring, carrying out ultrasonic and centrifugal washing for 3-5 times, adding acetone, carrying out stirring ultrasonic assisted dispersion, adding the mixture into an organic plastic material, carrying out stirring ultrasonic assisted dispersion to obtain a uniform suspension, carrying out high-speed centrifugal separation to obtain a mixture of the vermiculite ultraviolet blocking material and the organic plastic material, and drying the mixture to obtain a uniform solid mixture; and then preparing and molding the solid mixture to obtain the ultraviolet-resistant plastic product.
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