CN105148832A - Material based on ultrafine diatomaceous earth powder and used for removing formaldehyde and odor in air in cabinet and preparation method of material - Google Patents
Material based on ultrafine diatomaceous earth powder and used for removing formaldehyde and odor in air in cabinet and preparation method of material Download PDFInfo
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- CN105148832A CN105148832A CN201510507441.5A CN201510507441A CN105148832A CN 105148832 A CN105148832 A CN 105148832A CN 201510507441 A CN201510507441 A CN 201510507441A CN 105148832 A CN105148832 A CN 105148832A
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- Prior art keywords
- diatomite
- air
- formaldehyde
- wardrobe
- peculiar smell
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- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 title claims abstract description 418
- 239000000463 material Substances 0.000 title claims abstract description 185
- 239000000843 powder Substances 0.000 title claims abstract description 152
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 title claims abstract description 106
- 238000002360 preparation method Methods 0.000 title claims abstract description 20
- 239000005909 Kieselgur Substances 0.000 title abstract 4
- 239000011248 coating agent Substances 0.000 claims abstract description 67
- 238000000576 coating method Methods 0.000 claims abstract description 67
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 50
- 239000004816 latex Substances 0.000 claims abstract description 34
- 229920000126 latex Polymers 0.000 claims abstract description 34
- 239000002131 composite material Substances 0.000 claims abstract description 22
- 229920001971 elastomer Polymers 0.000 claims description 68
- SOQBVABWOPYFQZ-UHFFFAOYSA-N oxygen(2-);titanium(4+) Chemical compound [O-2].[O-2].[Ti+4] SOQBVABWOPYFQZ-UHFFFAOYSA-N 0.000 claims description 52
- 239000002245 particle Substances 0.000 claims description 45
- -1 diatomite compound Chemical class 0.000 claims description 31
- 239000004568 cement Substances 0.000 claims description 26
- 230000001699 photocatalysis Effects 0.000 claims description 24
- 238000003756 stirring Methods 0.000 claims description 19
- 239000008187 granular material Substances 0.000 claims description 12
- 239000007921 spray Substances 0.000 claims description 7
- XTXRWKRVRITETP-UHFFFAOYSA-N Vinyl acetate Chemical compound CC(=O)OC=C XTXRWKRVRITETP-UHFFFAOYSA-N 0.000 claims description 4
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 claims description 3
- 239000005977 Ethylene Substances 0.000 claims description 3
- OAOABCKPVCUNKO-UHFFFAOYSA-N 8-methyl Nonanoic acid Chemical compound CC(C)CCCCCCC(O)=O OAOABCKPVCUNKO-UHFFFAOYSA-N 0.000 claims description 2
- 229920006243 acrylic copolymer Polymers 0.000 claims description 2
- 229920001577 copolymer Polymers 0.000 claims description 2
- 229920001038 ethylene copolymer Polymers 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 38
- 238000000034 method Methods 0.000 abstract description 27
- 238000010521 absorption reaction Methods 0.000 abstract description 22
- 238000000746 purification Methods 0.000 abstract description 21
- 230000006870 function Effects 0.000 abstract description 13
- 150000002500 ions Chemical class 0.000 abstract description 13
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N titanium dioxide Inorganic materials O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 abstract description 7
- 239000002086 nanomaterial Substances 0.000 abstract description 2
- 238000004887 air purification Methods 0.000 abstract 1
- 230000003197 catalytic effect Effects 0.000 abstract 1
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 96
- 238000012360 testing method Methods 0.000 description 51
- 230000002688 persistence Effects 0.000 description 25
- WSFSSNUMVMOOMR-NJFSPNSNSA-N methanone Chemical compound O=[14CH2] WSFSSNUMVMOOMR-NJFSPNSNSA-N 0.000 description 16
- 239000004566 building material Substances 0.000 description 15
- 239000007789 gas Substances 0.000 description 15
- 150000001450 anions Chemical class 0.000 description 14
- 238000005516 engineering process Methods 0.000 description 13
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- 239000000796 flavoring agent Substances 0.000 description 10
- 235000019634 flavors Nutrition 0.000 description 10
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- 238000001354 calcination Methods 0.000 description 7
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- 238000001035 drying Methods 0.000 description 6
- 239000007787 solid Substances 0.000 description 6
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- 238000001514 detection method Methods 0.000 description 5
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- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 description 5
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 4
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- BDAGIHXWWSANSR-UHFFFAOYSA-N methanoic acid Natural products OC=O BDAGIHXWWSANSR-UHFFFAOYSA-N 0.000 description 3
- 238000002156 mixing Methods 0.000 description 3
- 238000001179 sorption measurement Methods 0.000 description 3
- NIXOWILDQLNWCW-UHFFFAOYSA-N 2-Propenoic acid Natural products OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 2
- ATRRKUHOCOJYRX-UHFFFAOYSA-N Ammonium bicarbonate Chemical compound [NH4+].OC([O-])=O ATRRKUHOCOJYRX-UHFFFAOYSA-N 0.000 description 2
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- 229930040373 Paraformaldehyde Natural products 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 239000001099 ammonium carbonate Substances 0.000 description 2
- 235000012501 ammonium carbonate Nutrition 0.000 description 2
- BFNBIHQBYMNNAN-UHFFFAOYSA-N ammonium sulfate Chemical compound N.N.OS(O)(=O)=O BFNBIHQBYMNNAN-UHFFFAOYSA-N 0.000 description 2
- 229910052921 ammonium sulfate Inorganic materials 0.000 description 2
- 235000011130 ammonium sulphate Nutrition 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000000354 decomposition reaction Methods 0.000 description 2
- 235000014113 dietary fatty acids Nutrition 0.000 description 2
- 230000004064 dysfunction Effects 0.000 description 2
- 238000001704 evaporation Methods 0.000 description 2
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- 230000005284 excitation Effects 0.000 description 2
- 229930195729 fatty acid Natural products 0.000 description 2
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- 235000019253 formic acid Nutrition 0.000 description 2
- 238000007731 hot pressing Methods 0.000 description 2
- 230000003301 hydrolyzing effect Effects 0.000 description 2
- 238000005286 illumination Methods 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 229920002866 paraformaldehyde Polymers 0.000 description 2
- 231100000614 poison Toxicity 0.000 description 2
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- 238000000926 separation method Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 238000003786 synthesis reaction Methods 0.000 description 2
- XJDNKRIXUMDJCW-UHFFFAOYSA-J titanium tetrachloride Chemical compound Cl[Ti](Cl)(Cl)Cl XJDNKRIXUMDJCW-UHFFFAOYSA-J 0.000 description 2
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 description 1
- OSWFIVFLDKOXQC-UHFFFAOYSA-N 4-(3-methoxyphenyl)aniline Chemical compound COC1=CC=CC(C=2C=CC(N)=CC=2)=C1 OSWFIVFLDKOXQC-UHFFFAOYSA-N 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 206010011224 Cough Diseases 0.000 description 1
- 206010014561 Emphysema Diseases 0.000 description 1
- 206010019233 Headaches Diseases 0.000 description 1
- 206010020751 Hypersensitivity Diseases 0.000 description 1
- CERQOIWHTDAKMF-UHFFFAOYSA-M Methacrylate Chemical compound CC(=C)C([O-])=O CERQOIWHTDAKMF-UHFFFAOYSA-M 0.000 description 1
- CERQOIWHTDAKMF-UHFFFAOYSA-N Methacrylic acid Chemical compound CC(=C)C(O)=O CERQOIWHTDAKMF-UHFFFAOYSA-N 0.000 description 1
- 201000007100 Pharyngitis Diseases 0.000 description 1
- 208000031320 Teratogenesis Diseases 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- 239000013543 active substance Substances 0.000 description 1
- 239000002156 adsorbate Substances 0.000 description 1
- 150000001336 alkenes Chemical group 0.000 description 1
- 125000000217 alkyl group Chemical group 0.000 description 1
- 208000026935 allergic disease Diseases 0.000 description 1
- 230000007815 allergy Effects 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
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- 230000000711 cancerogenic effect Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
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- 230000015556 catabolic process Effects 0.000 description 1
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- URGAHOPLAPQHLN-UHFFFAOYSA-N sodium aluminosilicate Chemical compound [Na+].[Al+3].[O-][Si]([O-])=O.[O-][Si]([O-])=O URGAHOPLAPQHLN-UHFFFAOYSA-N 0.000 description 1
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Landscapes
- Disinfection, Sterilisation Or Deodorisation Of Air (AREA)
- Catalysts (AREA)
Abstract
The invention discloses a material based on ultrafine diatomaceous earth powder and used for removing formaldehyde and odor in air in a cabinet and a preparation method of the material, belongs to the technical field of diatom nanomaterials, and solves the technical problems that the material and the method for removing the formaldehyde and the odor in the air in the cabinet in the prior art have low purification efficiency, low purification effect durability as well as poor moisture absorption and release and cannot generate negative ions. The material for removing the formaldehyde and the odor in the air in the cabinet comprises a sheet core and a coating for coating the sheet core, wherein the sheet core comprises water, the ultrafine diatomaceous earth powder and redispersible latex powder; the coating comprises a nano-TiO2/diatomaceous earth composite catalytic material and the redispersible latex powder. The material for removing the formaldehyde and the odor in the air in the cabinet can remove the formaldehyde and odorous gas in the cabinet and improve the quality of the air in the cabinet, further has the functions of negative ion release, air purification and air humidity regulation, and can be used for removing the formaldehyde and the odorous gas in the cabinet.
Description
Technical field
The invention belongs to diatom technical field of nano material, be specifically related to a kind of based on diatomite superfine powder except formaldehyde in air, peculiar smell material and preparation method thereof in wardrobe.
Background technology
Along with the fast development of national economy and the progressively raising of people's living standard, all kinds of furniture is day by day universal.Wardrobe, as the furniture of storing clothes, becomes the existence must lacked in people's life.Wardrobe material of the prior art mainly contains solid wood board, solid wood granule plate and MDF.Wherein, solid wood board is expensive, cannot popularization and application.Solid wood granule plate is the particle be made up of timber or other ligno-cellulosic materials, drying, applying glue and special equipment by after the crisscross orienting spreading of watch core layer flaking, a kind of wood-based plate after hot pressing (pressure reaches more than 3000 handkerchiefs) is shaping.The solid wood granule plate coefficient of expansion after super-dry process diminishes, and have stronger humidity resistance, plate density is higher, and in plate, lignocellulosic particle is comparatively large, and more remaining the essence of natural timber, is therefore the modal sheet material in present wardrobe market.But in the process used, solid wood granule plate can discharge poisonous formaldehyde gas.MDF is the one of density board, it is the artificial board processed through series of process with small diameter grade log, felling, industrial wood waste and other string, through smashing, fiber separation, dry after-applied Lauxite or other adhesive be suitable for, more a kind of artificial board made after hot pressing.Its density is generally in 0.5-0.8 gram per centimeter scope, and thickness is generally 3-30 millimeter.Medium density fibre board (MDF) has excellent nail-holding ability performance, decorate properties and processing characteristics, is often used as the central dividing plate of wardrobe.But can contain certain formaldehyde because MDF employs certain adhesive aborning, therefore this kind of sheet material also can discharge poisonous formaldehyde gas.
Formaldehyde is a kind of toxic gas of irritant smell, comprises allotriosmia, stimulation, allergy, abnormal pulmonary function, dysfunction of liver, immunologic dysfunction, central nervous system are influenced on the impact of human body.Stimulate eye mask at low concentrations, when concentration is slightly high, stimulate the upper respiratory tract, cause cough, uncomfortable in chest, headache, nauseating, rhinitis, pharyngitis, pulmonary emphysema are caused when concentration is higher, even dead, have carcinogenic, teratogenesis, mutagenicity, thus in wardrobe, formaldehyde harm has caused the extensive concern of people.
At present, conservative control and effective concentration of formaldehyde reduced in wardrobe in air have become an important content of wardrobe environment protection.In prior art, in wardrobe, Formaldehyde Pollution Treatment method adopts absorption method or photocatalytic method.Absorption method often adopts the single or composite uses of porous adsorbate such as natural clay, molecular sieve, active carbon, these material bulk density are low, specific area is large, so have stronger adsorption function, there is cheapness, fast, the features such as multiple inorganic, organic pollution can be removed, but shortcoming is that easily absorption is saturated, easy desorption thus cause secondary to discharge polluting, PARA FORMALDEHYDE PRILLS(91,95) is without specially effect is selective easily affected by environment.Photocatalytic method generally adopts titanium dioxide (TiO
2) etc. semi-conducting material, through ultraviolet excitation, decomposable asymmetric choice net majority of organic pollutants.But ultraviolet irradiation intensity is lower in wardrobe, inefficiency in actual use.In prior art, also do not have a kind of based on photocatalytic method can be effectively also lasting removal wardrobe in the material of formaldehyde gas.Utilize the method for formaldehyde in the fruit peel removing wardrobes such as orange peel in addition, but the absorption property of plant is very weak, and is placed in wardrobe, take up room.
To sum up, can find out, the method for formaldehyde in wardrobe that removes in prior art has certain effect, but the gas cleaning efficiency such as its PARA FORMALDEHYDE PRILLS(91,95) are not high, and clean-up effect persistence is not high yet, and cannot produce anion, and moisture absorption, wet putting are poor.And at present, because technology and material limit, in manufacture wardrobe process, also total ban the raw material containing formaldehyde components cannot be used, also just cannot remove the harm of formaldehyde from source, therefore, how eliminating and reducing formaldehyde harm is the task of top priority.
Summary of the invention
The object of the invention is to solve in prior art the material that removes the gas such as formaldehyde in air, peculiar smell in wardrobe and method purification efficiency low, clean-up effect persistence is low, can not anion releasing and moisture absorption, wet putting difference technical problem, provide a kind of based on diatomite superfine powder except formaldehyde in air, peculiar smell material and preparation method thereof in wardrobe.
The technical scheme that the present invention solves the problems of the technologies described above employing is as follows.
Of the present invention based on diatomite superfine powder except formaldehyde in air, peculiar smell material in wardrobe, be made up of the dressing of label and coated label;
Described label is made up of water, diatomite superfine powder and redispersable latex powder, and the quality of water accounts for the 4-6% of label gross mass, and the mass ratio of diatomite superfine powder and redispersable latex powder is (4-6): 1;
Described dressing is made up of nano titanium dioxide/diatomite compound catalyze material and redispersable latex powder, and the mass ratio of nano titanium dioxide/diatomite compound catalyze material and redispersable latex powder is 1:(2.5-3.5);
The mass ratio of described label and nano titanium dioxide/diatomite compound catalyze material is (10-15): 1.
Preferably, the particle diameter of described diatomite superfine powder is 500-800 order.
Preferably, described redispersable latex powder is the copolymer of ethylene/vinyl acetate, vinyl acetate/versatic acid ethylene copolymer or acrylic copolymer; It is further preferred that the model of described redispersable latex powder is 5044N.
Preferably, the hardness of described label is 8-10MPa.
Preferably, the particle diameter of described label is 15-25mm.
Preferably, the component of described nano titanium dioxide/diatomite composite photocatalytic material and weight portion are:
Preferably, the mass ratio of described label and nano titanium dioxide/diatomite compound catalyze material is 12.5:1.
The above-mentioned preparation method except formaldehyde in air, peculiar smell material in wardrobe based on diatomite superfine powder of the present invention, comprises the following steps:
Step one, by the water adding apparatus of redispersable latex powder and more than 85 DEG C, stir, obtain rubber cement;
In described rubber cement, the mass percent of redispersable latex powder is 25-35%;
Step 2, diatomite superfine powder is added in granulator, spray into the rubber cement of 30-45 DEG C, granulate, obtain particle;
In described diatomite superfine powder and rubber cement, the mass ratio of redispersable latex powder is (4-6): 1;
Step 3, with the pressure of 20-25MPa, particle is beaten sheet, obtain label;
Step 4, by nano titanium dioxide/diatomite composite photocatalytic material, redispersable latex powder and more than 85 DEG C water 1:(2.5-3.5 in mass ratio): in (14-16) adding apparatus, stir, obtain coating solution;
Step 5, add in seed-coating machine by label and coating solution, coating solution temperature maintains 36-60 DEG C, by label dressing, obtains coating tablet, be based on diatomite superfine powder except formaldehyde in air, peculiar smell material in wardrobe;
In described label and coating solution, the mass ratio of nano titanium dioxide/diatomite compound catalyze material is (10-15): 1.
Preferably, in step one, the mass ratio of described redispersable latex powder and water is 1:10.
Preferably, in step 2, the particle diameter of described particle is 10-50 order.
Preferably, in step 5, in described label and coating solution, the mass ratio of nano titanium dioxide/diatomite compound catalyze material is 12.5:1.
Compared with prior art, the invention has the beneficial effects as follows:
Of the present inventionly can not only remove formaldehyde in wardrobe and peculiar smell except formaldehyde in air in wardrobe, peculiar smell material, improve air quality in wardrobe, but also there is anion releasing, purify air, the effect of adjusting air humidity, make thoroughly to eliminate formaldehyde in wardrobe, peculiar smell become possibility.Of the present inventionly can realize absorption limit, limit and decompose except formaldehyde in air, peculiar smell material in wardrobe, adsorb again and decompose again, remove formaldehyde, gas with foreign flavor in wardrobe constantly, even at the dark night of unglazed photograph, of the present inventionly catch formaldehyde, gas with foreign flavor molecule except formaldehyde in air in wardrobe, peculiar smell material also can adsorb, formaldehyde, gas with foreign flavor in removing wardrobe, under solar radiation, the formaldehyde that absorption catches, gas with foreign flavor are decomposed, except in wardrobe, formaldehyde in air, peculiar smell material do not have loss, can reuse.
1, of the present invention except formaldehyde in air in wardrobe, peculiar smell material is to people's nonhazardous, non-corrosiveness, stable performance, there is high absorption adhesion, formaldehyde in energy quick adsorption purifying garderobe in air, gas with foreign flavor, air in wardrobe is made to purify pure and fresh instantaneously, have when visible ray or light very weak quick, efficiently, eliminate formaldehyde enduringly, the effect of gas with foreign flavor, purification efficiency is higher, purifying formaldehyde efficiency reaches 80.5-85.6%, toluene purification efficiency reaches 51.2-54.7%, clean-up effect persistence is higher, purifying formaldehyde effect persistence reaches 65.0-68.5%, toluene clean-up effect persistence reaches 39.3-42.6%.
2, of the present invention except formaldehyde in air in wardrobe, peculiar smell material green health is pollution-free, can passively discharge vitamin in air under illumination condition---natural negative ion, anion average increase is 71-83/cm
3, fresh air.
3, of the present invention except formaldehyde in air, peculiar smell material in wardrobe, well, hygroscopicity reaches 4.98-5.21 × 10 for moisture absorption, wet putting
-2kg/m
2, wet putting reaches 4.31-4.35 × 10
-2kg/m
2, air humidity in wardrobe can be regulated, effectively prevent the generation of the situation of going mouldy after use.
4, of the present invention except the preparation method of formaldehyde in air, peculiar smell material in wardrobe simple to operate, environment friendly and pollution-free, be convenient to actual industrial production.
Detailed description of the invention
In order to understand the present invention further, below in conjunction with detailed description of the invention, the preferred embodiments of the invention are described, but should be appreciated that these describe just as further illustrating the features and advantages of the present invention instead of the restriction to patent requirements of the present invention.
Of the present invention based on diatomite superfine powder except formaldehyde in air, peculiar smell material in wardrobe, be made up of the dressing of label and coated label.Wherein, label is made up of water, diatomite superfine powder and redispersable latex powder, and the mass ratio of diatomite superfine powder and redispersable latex powder is (4-6): 1, preferred 5:1, and the quality of water accounts for the 4-6% of label gross mass.Dressing is made up of nano titanium dioxide/diatomite compound catalyze material and redispersable latex powder, and the mass ratio of nano titanium dioxide/diatomite compound catalyze material and redispersable latex powder is 1:(2.5-3.5), preferred 1:3.In label and dressing, the mass ratio of nano titanium dioxide/diatomite composite photocatalytic material is (10-15): 1, preferred 12.5:1.The size removing formaldehyde, peculiar smell material in wardrobe based on diatomite superfine powder is generally diameter
16mm, thick 7mm.
In the present invention, in order to avoid label drops fracture or pulverize, affect material monolithic performance, the hardness of label is generally more than 8MPa, preferred 8-10MPa, and friability is that 1.5m highly drops and do not rupture.Specifically can measure according to the hardness of label of normal packet clothing tablet and the standard method of test of friability.The particle diameter of label is generally 15-25mm, preferred 20mm.The shape of label can be selected according to actual needs, as heart-shaped, circular etc.The weight of label routine can be chosen as 1.5g.
In the present invention, diatomite superfine powder is this area common used material, by commercially available.The particle diameter of the diatomite superfine powder that the present invention adopts is generally 500-800 order, preferably 500 orders.The diatomite superfine powder of present embodiment is purchased from Xing Hui filter aid company near a river.The effect of diatomite superfine powder is the ability improving materials adsorption formaldehyde, gas with foreign flavor.
In the present invention, redispersable latex powder can be obtained by those skilled in the art's well-known way.Redispersable latex powder obtains by after polymer emulsion drying, wherein, any one or a few mixture in the homopolymers that polymer can be alkene, alkadienes, acrylic acid, acroleic acid resin, methacrylic acid, methacrylate, fatty acid ethylene polyisocyanate polyaddition obtain, bipolymer, terpolymer, above-mentioned fatty acid vinyl ester is R-CO-O-CH=CH
2, R is alkyl.In the present invention, consider the factors such as environmental protection, the preferred model of redispersable latex powder is 5044N.5044N rubber powder is that rubber powder is commonly used in diatomite field.
Nano titanium dioxide/diatomite composite photocatalytic material of the present invention is prior art, comprise following component: smart diatomite 260-350 weight portion, concentration are hydrochloric acid solution 12-45 weight portion, the water 5000-7000 weight portion of 36%, the ammonium sulfate 240-350 weight portion that concentration is the titanium tetrachloride 280-400 weight portion of 200g/L, concentration is 200g/L and concentration are the ammonium carbonate 240-350 weight portion of 200g/L.
Nano titanium dioxide/diatomite composite photocatalytic material can adopt following methods to prepare according to prior art, but is not limited thereto:
After the ratio mixing of slurrying, by weight smart diatomite: concentration is the hydrochloric acid solution of 36%: water=260-350: 12-45: 5000-7000, stir 7-15min, carry out slurrying;
Hydrolytic precipitation, Particle density is the titanium tetrachloride of 200g/L by weight: concentration is the ammonium sulfate of 200g/L: concentration is that the ratio of ammonium carbonate=280-400: 240-350: the 240-350 of 200g/L adds in above-mentioned slurrying liquid, carrying out hydrolyzing and precipitating is reacted, synthesis of nano titanium dioxide/diatomite compound particle;
Filtration washing, puts in washing tube by the slip of above-mentioned synthesis of nano titanium dioxide/diatomite compound particle, and the ratio of smart diatomite by weight: water=260-350: 10000-20000 adds water and carries out filtration washing in washing tube;
Drying, puts into drying machine by the solution after above-mentioned filtration washing and carries out drying, baking temperature 280-360 DEG C, dry to stopping during water content 0-6%;
Break up, dried material is delivered to beater and breaks up;
Calcining, puts into the material after above-mentioned breaing up in calcining kiln and calcines, calcination time 3-9 hour, calcining heat 550-700 DEG C; Finished product.
In above-mentioned preparation method, smart diatomite, adopts following methods preparation:
Dry separation: diatomite original ore is dried to moisture 0-2%, sorting desanding is carried out with air flow turbine formula separator, the gravel of removing particle diameter > 43 μm and impurity, then calcination processing is carried out with rotary kiln, removing is organic, calcining heat 500 DEG C, insulation calcination time 90min;
Wet method acid immersion: Particle density is the sulfuric acid of 72% by weight: diatomite=1680 after above-mentioned sorting: the ratio of 420 drops in reactor, wet chemistry purification is carried out with sulfuric acid, acid soluble impurities in further removing diatom shell, the duct of dredging diatom body, improve diatomaceous specific area, when temperature of reaction kettle reaches 100 DEG C, insulation reaction 4h; Injected clear water 1600L after insulation reaction 4h, then insulation reaction 1h;
Filtration washing: the solution after purifying in aforesaid reaction vessel is injected washing tube, and the diatomite by weight after sorting: water=420: the ratio of 4000 adds washings to washing tube, carries out filtration washing; Obtain smart diatomite, water content 55%.
In the present invention, the specification of nano titanium dioxide/diatomite composite photocatalytic material generally adopts more than 800 orders preferably 800-1000 order.The effect of nano titanium dioxide/diatomite composite photocatalytic material is permanent seizure Sum decomposition formaldehyde, gas with foreign flavor.
Nano titanium dioxide/diatomite composite photocatalytic material is except the principle of the gas such as formaldehyde, peculiar smell:
The gas such as formaldehyde, peculiar smell is divided into two processes of the present invention except formaldehyde in air, the degraded of peculiar smell material surface in wardrobe, one is the gas molecules such as formaldehyde except formaldehyde in air, the absorption of peculiar smell material surface in wardrobe, and two is be adsorbed on except the gas molecule such as formaldehyde of formaldehyde in air, peculiar smell material surface in wardrobe is under light illumination by optical active substance nano titanium dioxide degradable.When energy exceedes the photon irradiation of nano titanium oxide energy gap when removing constituent-nano titanium dioxide/diatomite composite photocatalytic material surface of formaldehyde in air, peculiar smell material in wardrobe, the electronics being in nano titanium oxide valence band will be excited on conduction band, thus in valence band and conduction band, produce light induced electron and hole that high activity moves freely respectively.Nano titanium oxide due to nano titanium dioxide/diatomite composite photocatalytic material area load is nanometer particle, therefore the electronics of optical excitation generation and hole can move to surface very soon in body, hole is strong oxidizer, can will be adsorbed on the hydroxyl on nano titanium oxide surface and Water oxidize is OH; And conduction band electron is strong reductant, the dissolved oxygen being attracted to nano titanium oxide surface is captured and is formed
part
chain reaction can be continued through and generate OH.Generate OH and
there is stronger oxidisability, it is documented, the OH free radical that nano titanium dioxide photocatalysis reaction generates has the reaction energy of 402.8MJ/mol, higher than all kinds of chemical bond energy of organic compound, as C-C (83), C-H (99), C-N (73), C-O (80), N-H (93), H-O (111) etc., thus the OH generated and
can attack the c h bond of the gas such as formaldehyde, peculiar smell, H atom active with it produces new free radical, excites chain reaction, finally makes the gas such as formaldehyde, peculiar smell be decomposed into harmless tasteless substance.
During nano titanium dioxide/diatomite composite photocatalytic material Photo-Catalytic Degradation of Formaldehyde, active OH and
a common oxidation, is first oxidized to formic acid by formaldehyde gas, is finally decomposed into water and carbon dioxide.Its decomposition mechanism is as follows:
HCHO+·OH→·CHO+H
2O
·CHO+·OH→HCOOH
Of the present invention except formaldehyde in air, peculiar smell material in wardrobe, be placed in wardrobe, can continue to catch formaldehyde, gas with foreign flavor, even if also unaffected at dark night, when there being solar radiation, except formaldehyde in air, its formaldehyde, gas with foreign flavor caught of peculiar smell material breakdown in wardrobe, except in wardrobe, formaldehyde in air, peculiar smell material recover reset condition again, can reuse.
The above-mentioned preparation method except formaldehyde in air, peculiar smell material in wardrobe based on diatomite superfine powder, comprises the following steps:
Step one, by the water adding apparatus of redispersable latex powder and more than 85 DEG C, stir, obtain rubber cement;
Wherein, device is generally glue cylinder, has heat insulation function; In whipping process, water is in fluidized state, and with evaporation, consider production cost, the temperature of water is generally 85-100 DEG C; Mixing speed does not limit, and can stir; In the rubber cement finally obtained, the mass percent of redispersable latex powder is 25-35%, preferably 30%; When feeding intake, redispersable latex powder and hydromining mass ratio can be 1:10;
Step 2, diatomite superfine powder is added in granulator, the rubber cement that the step one spraying into 30-45 DEG C obtains, granulate, obtain particle;
Wherein, granulator generally adopts one-step-granulating method, and the order number of the particle obtained is at 10-50 order, and can be that granularity 50 object particle accounts for 70%, granularity 30 object particle accounts for 30%, and the mass percent of the moisture in each particle accounts for 4-6%; It should be noted that, in the present invention, particle must meet above-mentioned condition can make compressing tablet reach demand in tableting processes, and the prerequisite that particle meets above-mentioned condition to ensure the temperature of step one water and the whitewashing temperature of step 2;
Step 3, the particle using tablet machine step 2 to be obtained with the pressure of 20-25MPa beat sheet, obtain label;
Step 4, by nano titanium dioxide/diatomite composite photocatalytic material, redispersable latex powder and more than 85 DEG C water 1:(2.5-3.5 in mass ratio): (14-16), in preferred 1:3:15 adding apparatus, stirs, obtains coating solution;
Wherein, device is generally glue cylinder; In whipping process, water is in fluidized state, and with evaporation, consider production cost, the temperature of water is generally 85-100 DEG C; Mixing speed does not limit, and can stir;
Step 5, label and coating solution are added in seed-coating machine, coating solution temperature maintains 36-60 DEG C, by label dressing, obtain coating tablet, coating tablet appearance luster is even, smooth, meet the standard of pharmacy dressing, coating tablet be based on diatomite superfine powder except formaldehyde in air, peculiar smell material in wardrobe;
Wherein, in label and coating solution, the mass ratio of nano titanium dioxide/diatomite composite photocatalytic material is (10-15): 1, preferred 12.5:1.
In industrial actual production, for ease of selling and transport, usually coating tablet can be carried out packaging process, the preparation method namely in present embodiment can also comprise the following steps:
Step 6, coating tablet full-automatic electronic loader is loaded easily open bag package, 50 every bag, and easily open bag package is moistureproof with full-automatic pillow type packing machine plastic sealing pack;
Step 7, bag full-automatic box packing machine will be rested the head on load in the packing of product, 2 bags, every box;
Step 8, product packing box automatic boxing machine to be loaded in extranal packing box, every case 30 box.
The present invention is further illustrated below in conjunction with embodiment.
Embodiment 1
Based on diatomite superfine powder except formaldehyde in air, peculiar smell material in wardrobe, be made up of the dressing of label and coated label, wherein, label is made up of water, diatomite superfine powder (particle diameter is 800 orders) and 5044N rubber powder, the mass ratio of diatomite superfine powder and 5044N rubber powder is 4:1, and the quality of water accounts for 5% of label gross mass; Dressing is that the nano titanium dioxide/diatomite compound catalyze material of 1:3 and 5044N rubber powder form by mass ratio, and the mass ratio of label and nano titanium dioxide/diatomite compound catalyze material is 12:1.
The above-mentioned preparation method except formaldehyde in air, peculiar smell material in wardrobe based on diatomite superfine powder:
Step one, by the water of 5044N rubber powder and 95 DEG C in mass ratio 1:10 add in glue cylinder, stir, obtain rubber cement, in rubber powder, the mass percent of 5044N rubber powder is 25%;
Step 2, add in granulator by diatomite superfine powder, spray into the rubber cement of 30 DEG C, granulate, obtaining average grain diameter is 30 object particles, and in diatomite superfine powder and rubber cement, the mass ratio of 5044N rubber powder is 4:1;
Step 3, with the pressure of 22MPa, particle is beaten sheet, obtain label;
Step 4, by nano titanium dioxide/diatomite composite photocatalytic material, 5044N rubber powder and 95 DEG C of water in mass ratio 1:3:15 add in glue cylinder, stir, obtain coating solution;
Step 5, label and coating solution are added in seed-coating machine, in label and coating solution, the mass ratio of nano titanium dioxide/diatomite compound catalyze material is 12:1, coating solution temperature maintains 36 DEG C, by label dressing, obtain coating tablet, be based on diatomite superfine powder except formaldehyde in air, peculiar smell material in wardrobe.
To embodiment 1 obtain except formaldehyde in air in wardrobe, peculiar smell material carries out formaldehyde, toluene purification efficiency detects and formaldehyde, toluene clean-up effect persistence detect (entrusting national building materials industrial technology supervision research center), detects establishing criteria JC/T1074-2008 " function of purifying indoor air coating material purifying property ".
Experimental condition: sample size 200g, temperature (20 ± 2) DEG C, relative humidity (50 ± 10) %, lighting time: 48h.Testing result is as shown in the table.
| Test item | Standard-required | Testing result | Individual event conclusion |
| Purifying formaldehyde efficiency | ≥75％ | 81.5％ | Qualified |
| Purifying formaldehyde effect persistence | ≥60％ | 65.3％ | Qualified |
| Toluene purification efficiency | ≥35％ | 53.3％ | Qualified |
| Toluene clean-up effect persistence | ≥20％ | 42.6％ | Qualified |
From data in table, of the present inventionly meet the technical requirement of " I class material " in standard JC/T1074-2008 " function of purifying indoor air coating material purifying property " except formaldehyde in air in wardrobe, peculiar smell material purifying formaldehyde efficiency, purifying formaldehyde effect persistence, toluene purification efficiency, the persistent testing result of toluene clean-up effect.
To embodiment 1 obtain except formaldehyde in air in wardrobe, peculiar smell material carry out hygroscopicity, wet putting detects (entrusting national building materials industrial technology supervision research center), detects establishing criteria JISA1470-1:2008 " the absorb-discharge humid test method-1 of construction material: humidity response method ".Testing result is as shown in the table.
| Test item | Test environment | Model quality average increment | Suction, moisture releasing amount |
| Moisture absorption | 23℃，75％RH | 0.82g | 4.98×10 -2kg/m 2 |
| Moisture releasing | 23℃，50％RH | 0.51g | 4.14×10 -2kg/m 2 |
From data in table, of the present invention except in wardrobe, formaldehyde in air, peculiar smell material are under 23 DEG C of relative humidity 75% conditions, and moisture absorption 24h, the hygroscopic capacity of material is 4.98 × 10
-2kg/m
2; Under 23 DEG C of relative humidity 50% conditions, moisture releasing 24h, the moisture releasing amount of material is 4.14 × 10
-2kg/m
2.Show of the present invention except formaldehyde in air in wardrobe, peculiar smell material hygroscopicity, wet putting good.
What obtain embodiment 1 carries out anion-generating capacity detection (entrusting building material industry environment measuring center) except formaldehyde in air, peculiar smell material in wardrobe, detects establishing criteria JC/T1016-2006 " method of testing of material anion-generating capacity ".Method of testing is that 500g sample is positioned over 0.25m
2closed bin in, airtight 24h, with the U.S. produce negative aeroion tester (AirIonCounter).Testing result is as shown in the table.
| Testing conditions | Temperature T=25 DEG C, relative humidity RH=60% |
| Detect number of times | 16 times |
| Sample negative ion concentration mean value | 298/cm 2 |
| Background negative ion concentration mean value | 225/cm 2 |
| Anion average increase | 73/cm 2 |
From data in table, of the present invention except formaldehyde in air, peculiar smell material anion average increase in wardrobe be 73/cm
2.
Embodiment 2
Based on diatomite superfine powder except formaldehyde in air, peculiar smell material in wardrobe, be made up of the dressing of label and coated label, wherein, label is made up of water, diatomite superfine powder (particle diameter is 500 orders) and 5044N rubber powder, the mass ratio of diatomite superfine powder and 5044N rubber powder is 5:1, and the quality of water accounts for 5% of label gross mass; Dressing is that the nano titanium dioxide/diatomite compound catalyze material of 1:3 and 5044N rubber powder form by mass ratio, and the mass ratio of label and nano titanium dioxide/diatomite compound catalyze material is 12.5:1.
The above-mentioned preparation method except formaldehyde in air, peculiar smell material in wardrobe based on diatomite superfine powder:
Step one, by the water of 5044N rubber powder and 90 DEG C in mass ratio 1:10 add in glue cylinder, stir, obtain rubber cement, in rubber powder, the mass percent of 5044N rubber powder is 30%;
Step 2, add in granulator by diatomite superfine powder, spray into the rubber cement of 40 DEG C, granulate, obtaining average grain diameter is 25 object particles, and in diatomite superfine powder and rubber cement, the mass ratio of 5044N rubber powder is 5:1;
Step 3, with the pressure of 20MPa, particle is beaten sheet, obtain label;
Step 4, by nano titanium dioxide/diatomite composite photocatalytic material, 5044N rubber powder and 90 DEG C of water in mass ratio 1:3:15 add in glue cylinder, stir, obtain coating solution;
Step 5, label and coating solution are added in seed-coating machine, in label and coating solution, the mass ratio of nano titanium dioxide/diatomite compound catalyze material is 12.5:1, coating solution temperature maintains 40 DEG C, by label dressing, obtain coating tablet, be based on diatomite superfine powder except formaldehyde in air, peculiar smell material in wardrobe.
To embodiment 2 obtain except formaldehyde in air in wardrobe, peculiar smell material carries out formaldehyde, toluene purification efficiency detects and formaldehyde, toluene clean-up effect persistence detect (entrusting national building materials industrial technology supervision research center), detects establishing criteria JC/T1074-2008 " function of purifying indoor air coating material purifying property ".
Experimental condition: sample size 200g, temperature (20 ± 2) DEG C, relative humidity (50 ± 10) %, lighting time: 48h.Testing result is as shown in the table.
| Test item | Standard-required | Testing result | Individual event conclusion |
| Purifying formaldehyde efficiency | ≥75％ | 81.1％ | Qualified |
| Purifying formaldehyde effect persistence | ≥60％ | 66.0％ | Qualified |
| Toluene purification efficiency | ≥35％ | 53.6％ | Qualified |
| Toluene clean-up effect persistence | ≥20％ | 40.4％ | Qualified |
From data in table, of the present inventionly meet the technical requirement of " I class material " in standard JC/T1074-2008 " function of purifying indoor air coating material purifying property " except formaldehyde in air in wardrobe, peculiar smell material purifying formaldehyde efficiency, purifying formaldehyde effect persistence, toluene purification efficiency, the persistent testing result of toluene clean-up effect.
To embodiment 2 obtain except formaldehyde in air in wardrobe, peculiar smell material carry out hygroscopicity, wet putting detects (entrusting national building materials industrial technology supervision research center), detects establishing criteria JISA1470-1:2008 " the absorb-discharge humid test method-1 of construction material: humidity response method ".Testing result is as shown in the table.
| Test item | Test environment | Model quality average increment | Suction, moisture releasing amount |
| Moisture absorption | 23℃，75％RH | 0.80g | 5.11×10 -2kg/m 2 |
| Moisture releasing | 23℃，50％RH | 0.53g | 4.24×10 -2kg/m 2 |
From data in table, of the present invention except in wardrobe, formaldehyde in air, peculiar smell material are under 23 DEG C of relative humidity 75% conditions, and moisture absorption 24h, the hygroscopic capacity of material is 5.11 × 10
-2kg/m
2; Under 23 DEG C of relative humidity 50% conditions, moisture releasing 24h, the moisture releasing amount of material is 4.24 × 10
-2kg/m
2.Show of the present invention except formaldehyde in air in wardrobe, peculiar smell material hygroscopicity, wet putting good.
What obtain embodiment 2 carries out anion-generating capacity detection (entrusting building material industry environment measuring center) except formaldehyde in air, peculiar smell material in wardrobe, detects establishing criteria JC/T1016-2006 " method of testing of material anion-generating capacity ".Method of testing is that 500g sample is positioned over 0.25m
2closed bin in, airtight 24h, with the U.S. produce negative aeroion tester (AirIonCounter).Testing result is as shown in the table.
| Testing conditions | Temperature T=25 DEG C, relative humidity RH=60% |
| Detect number of times | 16 times |
| Sample negative ion concentration mean value | 302/cm 2 |
| Background negative ion concentration mean value | 226/cm 2 |
| Anion average increase | 76/cm 2 |
From data in table, of the present invention except formaldehyde in air, peculiar smell material anion average increase in wardrobe be 76/cm
2.
Embodiment 3
Based on diatomite superfine powder except formaldehyde in air, peculiar smell material in wardrobe, be made up of the dressing of label and coated label, wherein, label is made up of water, diatomite superfine powder (particle diameter is 600 orders) and 5044N rubber powder, the mass ratio of diatomite superfine powder and 5044N rubber powder is 5.5:1, and the quality of water accounts for 5.2% of label gross mass; Dressing is that the nano titanium dioxide/diatomite compound catalyze material of 1:3 and 5044N rubber powder form by mass ratio, and the mass ratio of label and nano titanium dioxide/diatomite compound catalyze material is 13:1.
The above-mentioned preparation method except formaldehyde in air, peculiar smell material in wardrobe based on diatomite superfine powder:
Step one, by the water of 5044N rubber powder and 90 DEG C in mass ratio 1:10 add in glue cylinder, stir, obtain rubber cement, in rubber powder, the mass percent of 5044N rubber powder is 30%;
Step 2, add in granulator by diatomite superfine powder, spray into the rubber cement of 45 DEG C, granulate, obtaining average grain diameter is 40 object particles, and in diatomite superfine powder and rubber cement, the mass ratio of 5044N rubber powder is 5.5:1;
Step 3, with the pressure of 25MPa, particle is beaten sheet, obtain label;
Step 4, by nano titanium dioxide/diatomite composite photocatalytic material, 5044N rubber powder and 90 DEG C of water in mass ratio 1:3:15 add in glue cylinder, stir, obtain coating solution;
Step 5, label and coating solution are added in seed-coating machine, in label and coating solution, the mass ratio of nano titanium dioxide/diatomite compound catalyze material is 13:1, coating solution temperature maintains 60 DEG C, by label dressing, obtain coating tablet, be based on diatomite superfine powder except formaldehyde in air, peculiar smell material in wardrobe.
To embodiment 3 obtain except formaldehyde in air in wardrobe, peculiar smell material carries out formaldehyde, toluene purification efficiency detects and formaldehyde, toluene clean-up effect persistence detect (entrusting national building materials industrial technology supervision research center), detects establishing criteria JC/T1074-2008 " function of purifying indoor air coating material purifying property ".
Experimental condition: sample size 200g, temperature (20 ± 2) DEG C, relative humidity (50 ± 10) %, lighting time: 48h.Testing result is as shown in the table.
| Test item | Standard-required | Testing result | Individual event conclusion |
| Purifying formaldehyde efficiency | ≥75％ | 84.3％ | Qualified |
| Purifying formaldehyde effect persistence | ≥60％ | 66.7％ | Qualified |
| Toluene purification efficiency | ≥35％ | 52.6％ | Qualified |
| Toluene clean-up effect persistence | ≥20％ | 39.9％ | Qualified |
From data in table, of the present inventionly meet the technical requirement of " I class material " in standard JC/T1074-2008 " function of purifying indoor air coating material purifying property " except formaldehyde in air in wardrobe, peculiar smell material purifying formaldehyde efficiency, purifying formaldehyde effect persistence, toluene purification efficiency, the persistent testing result of toluene clean-up effect.
To embodiment 3 obtain except formaldehyde in air in wardrobe, peculiar smell material carry out hygroscopicity, wet putting detects (entrusting national building materials industrial technology supervision research center), detects establishing criteria JISA1470-1:2008 " the absorb-discharge humid test method-1 of construction material: humidity response method ".Testing result is as shown in the table.
| Test item | Test environment | Model quality average increment | Suction, moisture releasing amount |
| Moisture absorption | 23℃，75％RH | 0.81g | 5.14×10 -2kg/m 2 |
| Moisture releasing | 23℃，50％RH | 0.54g | 4.25×10 -2kg/m 2 |
From data in table, of the present invention except in wardrobe, formaldehyde in air, peculiar smell material are under 23 DEG C of relative humidity 75% conditions, and moisture absorption 24h, the hygroscopic capacity of material is 5.14 × 10
-2kg/m
2; Under 23 DEG C of relative humidity 50% conditions, moisture releasing 24h, the moisture releasing amount of material is 4.25 × 10
-2kg/m
2.Show of the present invention except formaldehyde in air in wardrobe, peculiar smell material hygroscopicity, wet putting good.
What obtain embodiment 3 carries out anion-generating capacity detection (entrusting building material industry environment measuring center) except formaldehyde in air, peculiar smell material in wardrobe, detects establishing criteria JC/T1016-2006 " method of testing of material anion-generating capacity ".Method of testing is that 500g sample is positioned over 0.25m
2closed bin in, airtight 24h, with the U.S. produce negative aeroion tester (AirIonCounter).Testing result is as shown in the table.
| Testing conditions | Temperature T=25 DEG C, relative humidity RH=60% |
| Detect number of times | 16 times |
| Sample negative ion concentration mean value | 304/cm 2 |
| Background negative ion concentration mean value | 226/cm 2 |
| Anion average increase | 78/cm 2 |
From data in table, of the present invention except formaldehyde in air, peculiar smell material anion average increase in wardrobe be 78/cm
2.
Embodiment 4
Based on diatomite superfine powder except formaldehyde in air, peculiar smell material in wardrobe, be made up of the dressing of label and coated label, wherein, label is made up of water, diatomite superfine powder (particle diameter is 700 orders) and 5044N rubber powder, the mass ratio of diatomite superfine powder and 5044N rubber powder is 6:1, and the quality of water accounts for 5.5% of label gross mass; Dressing is that the nano titanium dioxide/diatomite compound catalyze material of 1:3 and 5044N rubber powder form by mass ratio, and the mass ratio of label and nano titanium dioxide/diatomite compound catalyze material is 15:1.
The above-mentioned preparation method except formaldehyde in air, peculiar smell material in wardrobe based on diatomite superfine powder:
Step one, by the water of 5044N rubber powder and 100 DEG C in mass ratio 1:10 add in glue cylinder, stir, obtain rubber cement, in rubber powder, the mass percent of 5044N rubber powder is 35%;
Step 2, add in granulator by diatomite superfine powder, spray into the rubber cement of 40 DEG C, granulate, obtaining average grain diameter is 15 object particles, and in diatomite superfine powder and rubber cement, the mass ratio of 5044N rubber powder is 6:1;
Step 3, with the pressure of 20MPa, particle is beaten sheet, obtain label;
Step 4, by nano titanium dioxide/diatomite composite photocatalytic material, 5044N rubber powder and 90 DEG C of water in mass ratio 1:3:15 add in glue cylinder, stir, obtain coating solution;
Step 5, label and coating solution are added in seed-coating machine, in label and coating solution, the mass ratio of nano titanium dioxide/diatomite compound catalyze material is 15:1, coating solution temperature maintains 60 DEG C, by label dressing, obtain coating tablet, be based on diatomite superfine powder except formaldehyde in air, peculiar smell material in wardrobe.
To embodiment 4 obtain except formaldehyde in air in wardrobe, peculiar smell material carries out formaldehyde, toluene purification efficiency detects and formaldehyde, toluene clean-up effect persistence detect (entrusting national building materials industrial technology supervision research center), detects establishing criteria JC/T1074-2008 " function of purifying indoor air coating material purifying property ".
Experimental condition: sample size 200g, temperature (20 ± 2) DEG C, relative humidity (50 ± 10) %, lighting time: 48h.Testing result is as shown in the table.
| Test item | Standard-required | Testing result | Individual event conclusion |
| Purifying formaldehyde efficiency | ≥75％ | 80.5％ | Qualified |
| Purifying formaldehyde effect persistence | ≥60％ | 65.2％ | Qualified |
| Toluene purification efficiency | ≥35％ | 52.2％ | Qualified |
| Toluene clean-up effect persistence | ≥20％ | 39.6％ | Qualified |
From data in table, of the present inventionly meet the technical requirement of " I class material " in standard JC/T1074-2008 " function of purifying indoor air coating material purifying property " except formaldehyde in air in wardrobe, peculiar smell material purifying formaldehyde efficiency, purifying formaldehyde effect persistence, toluene purification efficiency, the persistent testing result of toluene clean-up effect.
To embodiment 4 obtain except formaldehyde in air in wardrobe, peculiar smell material carry out hygroscopicity, wet putting detects (entrusting national building materials industrial technology supervision research center), detects establishing criteria JISA1470-1:2008 " the absorb-discharge humid test method-1 of construction material: humidity response method ".Testing result is as shown in the table.
| Test item | Test environment | Model quality average increment | Suction, moisture releasing amount |
| Moisture absorption | 23℃，75％RH | 0.83g | 5.19×10 -2kg/m 2 |
| Moisture releasing | 23℃，50％RH | 0.51g | 4.17×10 -2kg/m 2 |
From data in table, of the present invention except in wardrobe, formaldehyde in air, peculiar smell material are under 23 DEG C of relative humidity 75% conditions, and moisture absorption 24h, the hygroscopic capacity of material is 5.19 × 10
-2kg/m
2; Under 23 DEG C of relative humidity 50% conditions, moisture releasing 24h, the moisture releasing amount of material is 4.17 × 10
-2kg/m
2.Show of the present invention except formaldehyde in air in wardrobe, peculiar smell material hygroscopicity, wet putting good.
What obtain embodiment 4 carries out anion-generating capacity detection (entrusting building material industry environment measuring center) except formaldehyde in air, peculiar smell material in wardrobe, detects establishing criteria JC/T1016-2006 " method of testing of material anion-generating capacity ".Method of testing is that 500g sample is positioned over 0.25m
2closed bin in, airtight 24h, with the U.S. produce negative aeroion tester (AirIonCounter).Testing result is as shown in the table.
| Testing conditions | Temperature T=25 DEG C, relative humidity RH=60% |
| Detect number of times | 16 times |
| Sample negative ion concentration mean value | 301/cm 2 |
| Background negative ion concentration mean value | 230/cm 2 |
| Anion average increase | 71/cm 2 |
From data in table, of the present invention except formaldehyde in air, peculiar smell material anion average increase in wardrobe be 71/cm
2.
Embodiment 5
Based on diatomite superfine powder except formaldehyde in air, peculiar smell material in wardrobe, be made up of the dressing of label and coated label, wherein, label is made up of water, diatomite superfine powder (particle diameter is 800 orders) and 5044N rubber powder, the mass ratio of diatomite superfine powder and 5044N rubber powder is 5:1, and the quality of water accounts for 6% of label gross mass; Dressing is that the nano titanium dioxide/diatomite compound catalyze material of 1:3 and 5044N rubber powder form by mass ratio, and the mass ratio of label and nano titanium dioxide/diatomite compound catalyze material is 12.5:1.
The above-mentioned preparation method except formaldehyde in air, peculiar smell material in wardrobe based on diatomite superfine powder:
Step one, by the water of 5044N rubber powder and 90 DEG C in mass ratio 1:10 add in glue cylinder, stir, obtain rubber cement, in rubber powder, the mass percent of 5044N rubber powder is 29.6%;
Step 2, add in granulator by diatomite superfine powder, spray into the rubber cement of 40 DEG C, granulate, obtaining average grain diameter is 30 object particles, and in diatomite superfine powder and rubber cement, the mass ratio of 5044N rubber powder is 5:1;
Step 3, with the pressure of 15MPa, particle is beaten sheet, obtain label;
Step 4, by nano titanium dioxide/diatomite composite photocatalytic material, 5044N rubber powder and 90 DEG C of water in mass ratio 1:3:15 add in glue cylinder, stir, obtain coating solution;
Step 5, label and coating solution are added in seed-coating machine, in label and coating solution, the mass ratio of nano titanium dioxide/diatomite compound catalyze material is 12.5:1, coating solution temperature maintains 36 DEG C, by label dressing, obtain coating tablet, be based on diatomite superfine powder except formaldehyde in air, peculiar smell material in wardrobe.
To embodiment 5 obtain except formaldehyde in air in wardrobe, peculiar smell material carries out formaldehyde, toluene purification efficiency detects and formaldehyde, toluene clean-up effect persistence detect (entrusting national building materials industrial technology supervision research center), detects establishing criteria JC/T1074-2008 " function of purifying indoor air coating material purifying property ".
Experimental condition: sample size 200g, temperature (20 ± 2) DEG C, relative humidity (50 ± 10) %, lighting time: 48h.Testing result is as shown in the table.
| Test item | Standard-required | Testing result | Individual event conclusion |
| Purifying formaldehyde efficiency | ≥75％ | 85.6％ | Qualified |
| Purifying formaldehyde effect persistence | ≥60％ | 68.5％ | Qualified |
| Toluene purification efficiency | ≥35％ | 54.7％ | Qualified |
| Toluene clean-up effect persistence | ≥20％ | 41.5％ | Qualified |
From data in table, of the present inventionly meet the technical requirement of " I class material " in standard JC/T1074-2008 " function of purifying indoor air coating material purifying property " except formaldehyde in air in wardrobe, peculiar smell material purifying formaldehyde efficiency, purifying formaldehyde effect persistence, toluene purification efficiency, the persistent testing result of toluene clean-up effect.
To embodiment 5 obtain except formaldehyde in air in wardrobe, peculiar smell material carry out hygroscopicity, wet putting detects (entrusting national building materials industrial technology supervision research center), detects establishing criteria JISA1470-1:2008 " the absorb-discharge humid test method-1 of construction material: humidity response method ".Testing result is as shown in the table.
| Test item | Test environment | Model quality average increment | Suction, moisture releasing amount |
| Moisture absorption | 23℃，75％RH | 0.84g | 5.21×10 -2kg/m 2 |
| Moisture releasing | 23℃，50％RH | 0.57g | 4.35×10 -2kg/m 2 |
From data in table, of the present invention except in wardrobe, formaldehyde in air, peculiar smell material are under 23 DEG C of relative humidity 75% conditions, and moisture absorption 24h, the hygroscopic capacity of material is 5.21 × 10
-2kg/m
2; Under 23 DEG C of relative humidity 50% conditions, moisture releasing 24h, the moisture releasing amount of material is 4.35 × 10
-2kg/m
2.Show of the present invention except formaldehyde in air in wardrobe, peculiar smell material hygroscopicity, wet putting good.
What obtain embodiment 5 carries out anion-generating capacity detection (entrusting building material industry environment measuring center) except formaldehyde in air, peculiar smell material in wardrobe, detects establishing criteria JC/T1016-2006 " method of testing of material anion-generating capacity ".Method of testing is that 500g sample is positioned over 0.25m
2closed bin in, airtight 24h, with the U.S. produce negative aeroion tester (AirIonCounter).Testing result is as shown in the table.
| Testing conditions | Temperature T=25 DEG C, relative humidity RH=60% |
| Detect number of times | 16 times |
| Sample negative ion concentration mean value | 308/cm 2 |
| Background negative ion concentration mean value | 225/cm 2 |
| Anion average increase | 83/cm 2 |
From data in table, of the present invention except formaldehyde in air, peculiar smell material anion average increase in wardrobe be 83/cm
2.
Obviously, the explanation of above embodiment just understands method of the present invention and core concept thereof for helping.It should be pointed out that the those of ordinary skill for described technical field, under the premise without departing from the principles of the invention, can also carry out some improvement and modification to the present invention, these improve and modify and also fall in the protection domain of the claims in the present invention.
Claims (10)
1. based on diatomite superfine powder except formaldehyde in air, peculiar smell material in wardrobe, it is characterized in that, be made up of the dressing of label and coated label;
Described label is made up of water, diatomite superfine powder and redispersable latex powder, and the quality of water accounts for the 4-6% of label gross mass, and the mass ratio of diatomite superfine powder and redispersable latex powder is (4-6): 1;
Described dressing is made up of nano titanium dioxide/diatomite compound catalyze material and redispersable latex powder, and the mass ratio of nano titanium dioxide/diatomite compound catalyze material and redispersable latex powder is 1:(2.5-3.5);
In described label and dressing, the mass ratio of nano titanium dioxide/diatomite compound catalyze material is (10-15): 1.
2. according to claim 1 based on diatomite superfine powder except formaldehyde in air, peculiar smell material in wardrobe, it is characterized in that, the particle diameter of described diatomite superfine powder is 500-800 order.
3. according to claim 1 based on diatomite superfine powder except formaldehyde in air, peculiar smell material in wardrobe, it is characterized in that, described redispersable latex powder is the copolymer of ethylene/vinyl acetate, vinyl acetate/versatic acid ethylene copolymer or acrylic copolymer.
4. according to claim 1 based on diatomite superfine powder except formaldehyde in air, peculiar smell material in wardrobe, it is characterized in that, the hardness of described label is 8-10MPa, and particle diameter is 15-25mm.
5. according to claim 1 based on diatomite superfine powder except formaldehyde in air, peculiar smell material in wardrobe, it is characterized in that, the component of described nano titanium dioxide/diatomite composite photocatalytic material and weight portion are:
6. according to claim 1 based on diatomite superfine powder except formaldehyde in air, peculiar smell material in wardrobe, it is characterized in that, in described label and dressing, the mass ratio of nano titanium dioxide/diatomite compound catalyze material is 12.5:1.
7. the preparation method except wardrobe in formaldehyde in air, peculiar smell material based on diatomite superfine powder of claim 1-5 described in any one, is characterized in that, comprise the following steps:
Step one, by the water adding apparatus of redispersable latex powder and more than 85 DEG C, stir, obtain rubber cement;
In described rubber cement, the mass percent of redispersable latex powder is 25-35%;
Step 2, diatomite superfine powder is added in granulator, spray into the rubber cement of 30-45 DEG C, granulate, obtain particle;
In described diatomite superfine powder and rubber cement, the mass ratio of redispersable latex powder is (4-6): 1;
Step 3, with the pressure of 20-25MPa, particle is beaten sheet, obtain label;
Step 4, by nano titanium dioxide/diatomite composite photocatalytic material, redispersable latex powder and more than 85 DEG C water 1:(2.5-3.5 in mass ratio): in (14-16) adding apparatus, stir, obtain coating solution;
Step 5, add in seed-coating machine by label and coating solution, coating solution temperature maintains 36-60 DEG C, by label dressing, obtains coating tablet, be based on diatomite superfine powder except formaldehyde in air, peculiar smell material in wardrobe;
In described label and coating solution, the mass ratio of nano titanium dioxide/diatomite compound catalyze material is (10-15): 1.
8. the preparation method except formaldehyde in air, peculiar smell material in wardrobe based on diatomite superfine powder according to claim 7, it is characterized in that, in step one, the mass ratio of described redispersable latex powder and water is 1:10.
9. the preparation method except formaldehyde in air, peculiar smell material in wardrobe based on diatomite superfine powder according to claim 7, it is characterized in that, in step 2, the particle diameter of described particle is 10-50 order.
10. the preparation method except formaldehyde in air, peculiar smell material in wardrobe based on diatomite superfine powder according to claim 7, it is characterized in that, in step 5, in described label and coating solution, the mass ratio of nano titanium dioxide/diatomite compound catalyze material is 12.5:1.
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| CN112371092A (en) * | 2020-10-23 | 2021-02-19 | 郭竹春 | Formaldehyde-removing and peculiar smell-removing active material and preparation method thereof |
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| CN101804338A (en) * | 2009-05-19 | 2010-08-18 | 王秀宝 | Process for producing nano titanium dioxide/diatomite composite photocatalytic material |
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Application publication date: 20151216 Assignee: Linjiang City Baojian nano composite Mstar Technology Ltd Assignor: Wang Xiubao Contract record no.: 2017220000001 Denomination of invention: Material based on ultrafine diatomaceous earth powder and used for removing formaldehyde and odor in air in cabinet and preparation method of material Granted publication date: 20161012 License type: Exclusive License Record date: 20170313 |
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