CN107266001B - Environment-friendly diatomite composition and application thereof - Google Patents
Environment-friendly diatomite composition and application thereof Download PDFInfo
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- CN107266001B CN107266001B CN201710666377.4A CN201710666377A CN107266001B CN 107266001 B CN107266001 B CN 107266001B CN 201710666377 A CN201710666377 A CN 201710666377A CN 107266001 B CN107266001 B CN 107266001B
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/24—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing alkyl, ammonium or metal silicates; containing silica sols
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/00025—Aspects relating to the protection of the health, e.g. materials containing special additives to afford skin protection
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/00474—Uses not provided for elsewhere in C04B2111/00
- C04B2111/00482—Coating or impregnation materials
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Abstract
The invention discloses an environment-friendly diatom ooze composition and application thereof, wherein the diatom ooze composition comprises 1-50 parts by weight of kieselguhr and 1-60 parts by weight of column chromatography silica gel; the column chromatography silica gel comprises A type silica gel and C type silica gel, wherein the weight ratio of the A type silica gel to the C type silica gel is 0.1-10: 1. the invention also discloses a diatom ooze coating containing the diatomite composition and auxiliary materials. The diatom ooze composition and the diatom ooze coating have the advantages of controllable micropore distribution, high surface hydroxyl content, high specific surface area, strong adsorption capacity and outstanding humidity regulating capacity, can obviously improve the environment purification effect, temperature control effect and humidity regulating effect of diatom ooze wall materials, and have the advantages of low cost, high strength, static resistance, strong adsorption and the like.
Description
Technical Field
The invention belongs to the field of building materials, and particularly relates to an environment-friendly diatomite composition and application thereof.
Background
Indoor decoration usually needs to use multiple decoration materials, easily produces formaldehyde, benzene class and other indoor organic gaseous state substance TVOC superimposed pollution, improves indoor environment, reduces the decoration pollution and has been paid more and more attention to by the people.
The diatom ooze is an indoor decoration wall material taking diatomite as a main raw material, is made of pure natural inorganic materials, is green and environment-friendly, and has no pollution and no peculiar smell. The core component of diatom ooze is diatomite. Diatomite in SiO2Mainly has light weight and loose weight, the density is 1.9-2.3 g/mL, the specific surface area is 40-65 m2(ii) in terms of/g. Diatomaceous earth is a special porous structure, regularly and neatly arranged in a circular or needle shape, and has thousands of times as many micropores per unit area as activated carbon. The unique function of the diatomite is determined by the outstanding molecular lattice structure of the diatomite, so that the diatomite has extremely strong physical adsorption and ion exchange performances, and the diatomite is widely applied to the fields of functional coatings, medicine filter aids, food additives, nuclear radiation adsorbents and the like after being finely processed.
In the existing diatom ooze formula system, besides common auxiliary additives, nanometer titanium dioxide is often added as a photocatalyst to decompose small organic molecules adsorbed on the surface or inner holes of diatom ooze; or antibacterial germicides, to inhibit bacterial growth. The diatomite is the core component of the diatom ooze, but the diatomite is often roasted at high temperature from the exploitation to the purification into usable diatomite products, so that the specific surface area of the diatomite is reduced (only 20-30 m)2/g), resulting in a substantial decrease in adsorption capacity; on the other hand, hydroxyl groups at adjacent positions on the microscopic surface of the diatomite can be chemically dehydrated through high-temperature roasting to form an Si-O-Si structure, so that the hydroxyl content on the surface of the diatomite is greatly reduced, the adsorption strength, the adsorption capacity and the bonding strength with other auxiliary materials can be correspondingly reduced, and the moisture absorption and adjustment can be realizedThe wet capacity is also reduced.
In addition, the pore size distribution range of the diatomite is mainly 50-3000 nm, the diameter of formaldehyde molecules is about 0.45nm, and the diameter of benzene molecules is about 0.6 nm. Therefore, the pore size distribution range of the adsorbent which is most beneficial to adsorbing organic micromolecules in the decoration material is 1-2 nanometers, the material can adsorb harmful substances such as formaldehyde, benzene, TVOC and the like with high selectivity, and desorption is not easy to occur.
In view of the above, there is a need in the art to develop modified diatomite materials to improve the adsorption performance and other properties thereof.
Disclosure of Invention
The invention aims to provide an environment-friendly diatom ooze coating of a diatomite composition with adjustable micropore distribution, high specific surface, high surface hydroxyl content, high humidity regulating capacity and high adsorption activity.
In a first aspect of the present invention, there is provided a diatomaceous earth composition, comprising:
1-50 parts by weight of diatomite; and
1 to 60 parts by weight of column chromatography silica gel,
wherein, column chromatography silica gel includes A type silica gel and C type silica gel, wherein the weight ratio of A type silica gel and C type silica gel is 0.05-10: 1.
in another preferred embodiment, the diatomaceous earth composition comprises:
5-30 parts by weight of diatomite; and
1-40 parts of column chromatography silica gel.
In another preferred embodiment, the diatomaceous earth composition comprises:
5-25 or 10-20 parts by weight of diatomaceous earth; and
10-40 or 15-30 parts of column chromatography silica gel.
In another preferred embodiment, the weight ratio of the type a silica gel to the type C silica gel is 0.08-5:1 or 0.1-2: 1.
In another preferred embodiment, the weight ratio of the type a silica gel to the type C silica gel is 0.2 to 5: 1.
in another preferred embodiment, the weight ratio of the type a silica gel to the type C silica gel is 0.5 to 2: 1.
in another preferred embodiment, the pore size of the type A silica gel is 2-3 nm.
In another preferred example, the pore size of the C-type silica gel is 8-10 nm.
In another preferred embodiment, the diatomaceous earth composition has one or more of the following characteristics:
(1) the aperture size of the A-type silica gel is 2.2-2.8 nm;
(2) the pore size of the C-type silica gel is 8.5-9.5 nm;
(3) the content of silicon dioxide in the A-type silica gel is more than or equal to 99%, preferably more than or equal to 99.5%, and more preferably more than or equal to 99.9%;
(4) the content of silicon dioxide in the C-type silica gel is more than or equal to 99 percent, preferably more than or equal to 99.5 percent, and more preferably more than or equal to 99.9 percent;
(5) the surface hydroxyl content of the A-type silica gel is 5-10 SiOH nm-2；
(6) The surface hydroxyl content of the C-type silica gel is 5-10 SiOH nm-2；
(7) The particle size range of the diatomite is 400-800 meshes, preferably 400-600 meshes, and more preferably 400-500 meshes;
(8) the whiteness of the diatomite is more than or equal to 70, preferably more than or equal to 80, and more preferably more than or equal to 90;
(9) the surface hydroxyl content of the diatomite composition is 1-10 SiOH nm-2；
(10) The specific surface area of the diatomite composition is 200-600.
In a second aspect of the invention, a diatom ooze coating is provided, which comprises the diatomite composition of the first aspect and an auxiliary material.
In another preferred embodiment, the auxiliary materials are double-flying powder, sierozem powder, kaolin, lignocellulose, titanium white powder photocatalyst, redispersible latex powder and cellulose ether.
In another preferred example, the diatom ooze coating comprises:
0-50 parts of double-flying powder, 5-30 parts of sierozem powder, 5-30 parts of kaolin, 0.5-2 parts of lignocellulose, 2-10 parts of titanium white powder photocatalyst, 1-5 parts of redispersible latex powder and 0.5-5 parts of cellulose ether.
In another preferred example, the diatom ooze coating comprises:
0-35 parts of double-flying powder, 5-15 parts of sierozem powder, 5-15 parts of kaolin, 0.5-2 parts of lignocellulose, 2-6 parts of titanium white powder photocatalyst, 1-5 parts of redispersible latex powder and 0.5-1 part of cellulose ether.
In another preferred example, the diatom ooze coating comprises:
20-40 parts of double-flying powder, 5-25 parts of sierozem powder, 5-25 parts of kaolin, 0.8-1.5 parts of lignocellulose, 3-8 parts of titanium white powder photocatalyst, 1-5 parts of redispersible latex powder and 0.5-2 parts of cellulose ether.
In another preferred example, the diatom ooze coating comprises:
25-35 parts of double-flying powder, 10-15 parts of sierozem powder, 10-15 parts of kaolin, 0.8-1.2 parts of lignocellulose, 4-6 parts of titanium white powder photocatalyst, 2-4 parts of redispersible latex powder and 0.8-1.5 parts of cellulose ether.
In another preferred example, the diatom ooze coating further has one or more of the following characteristics:
(1) the particle size range of the double-fly ash is 400-;
(2) the particle size range of the sierozem powder is 400-;
(3) the particle size range of the titanium dioxide photocatalyst is 800-1200 meshes, preferably 800-1000 meshes, and more preferably 900-1000 meshes;
(4) the particle size range of the kaolin is 800-;
(5) the redispersible latex powder is selected from the group consisting of: vinyl acetate and ethylene copolymerized rubber powder, vinyl acetate, ethylene and higher fatty acid vinyl ester copolymerized rubber powder, vinyl acetate and higher fatty acid vinyl ester copolymerized rubber powder, acrylic ester and styrene copolymerized rubber powder, vinyl acetate, acrylic ester and higher fatty acid vinyl ester copolymerized rubber powder, vinyl acetate homopolymerized rubber powder and one or the combination of more than two of styrene and butadiene copolymerized rubber powder; the preferable choice is the copolymer rubber powder of vinyl acetate and ethylene;
(6) the cellulose ether is selected from the group consisting of: a hydroxymethylcellulose ether, a hydroxyethylcellulose ether, a hydroxypropylmethylcellulose ether, or a combination thereof;
(7) the length of the lignocellulose ranges from 1 mm to 3mm, and preferably from 2 mm to 3 mm.
In a third aspect of the invention, there is provided the use of the diatomaceous earth composition of the first aspect or the diatomaceous earth coating of the second aspect as an upholstery material.
The diatom ooze composition and the diatom ooze coating have the advantages of controllable micropore distribution, high surface hydroxyl content, high specific surface area, strong adsorption capacity and outstanding humidity regulating capacity, can obviously improve the environment purification effect, temperature control effect and humidity regulating effect of diatom ooze wall materials, and have the advantages of low cost, high strength, static resistance, strong adsorption and the like.
It is to be understood that within the scope of the present invention, the above-described features of the present invention and those specifically described below (e.g., in the examples) may be combined with each other to form new or preferred embodiments. Not to be reiterated herein, but to the extent of space.
Drawings
FIG. 1 is a graph showing the results of the specific surface test.
Fig. 2 is a diagram of the aperture distribution.
FIG. 3 is a drawing of a structure of an infrared spectrum.
Detailed Description
The inventor of the present invention has made extensive and intensive studies, and has surprisingly found for the first time that the addition of column chromatography silica gel having abundant surface hydroxyl groups to diatom ooze can increase the adsorption performance to small organic molecules, especially polar functional groups (such as aldehyde, alcohol, acid, ester, sulfur, etc.), and also has a good regulation effect on the humidity balance in the surrounding air. The present invention has been completed based on this finding.
Description of the terms
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs.
As used herein, the term "about" when used in reference to a specifically recited value means that the value may vary by no more than 1% from the recited value. For example, as used herein, the expression "about 100" includes 99 and 101 and all values in between (e.g., 99.1, 99.2, 99.3, 99.4, 100.5, etc.).
As used herein, the term "comprising" or "includes" can be open, semi-closed, and closed. In other words, the term also includes "consisting essentially of …," or "consisting of ….
Column chromatography silica gel
The column chromatography silica gel is SiO2High-quality silica gel with the content of more than 99 percent, high purity, safety and sanitation. Which is mainly composed of colloidal particles forming an aggregated structure. The colloidal particles are condensation polymers of hydrated colloidal silica (polysilicic acid) and are amorphous substances. The gaps of the aggregate of the colloidal particles form a micropore structure inside the silica gel particles of the reagent column chromatography. Therefore, the purity of the column chromatography silica gel is higher (SiO)2The content is more than 99 percent), has richer microporous structures (the average pore diameter is in a controllable range of 20-20000A DEG, can adapt to the adsorption of substances with different properties, molecular weights and molecular structures), has high specific surface area which is about 300-800m2High surface hydroxyl content (the surface hydroxyl number is about 10 times of that of diatomite) and high adsorption activity.
In the invention, the column chromatography silica gel and the diatomite can be used together as the core component of the diatom ooze, so that the adsorption performance of the diatom ooze is improved.
As used herein, the particle size of the diatomaceous earth is in the range of 400-800 mesh, preferably 400-600 mesh, and more preferably 400-500 mesh.
As used herein, the whiteness of diatomaceous earth is ≥ 70, preferably ≥ 80, more preferably ≥ 90.
As used herein, "silica gel type A" and "silica gel for fine pore column chromatography" have the same meanings and are used interchangeably, and have a silica content of 99% or more, preferably 99.5% or more, more preferably 99.9% or more, and a specific surface area of 600-800m2The pore diameter is 2-3nm, the mesh number is 300-800 meshes, the surface hydroxyl content is as follows: 5 to 10 SiOH nm-21.2 ten thousand per ton.
As used herein, "C-type silica gel" and "macroporous column chromatography silica gel" have the same meaning and may be used interchangeably, and have a silica content of 99% or more, preferably 99.5% or more, more preferably 99.9% or more, and a specific surface of 300-400m2The pore diameter is 8-10nm, the mesh number is 300-800 meshes, the surface hydroxyl content is as follows: 5 to 10 SiOH nm-21.2 ten thousand per ton.
The main advantages of the invention are:
(1) the diatom ooze decorative material has high surface hydroxyl concentration (the number of the hydroxyl on the surface of column chromatography silica gel is about 10 times of that of the hydroxyl on the surface of diatomite), high specific surface area, remarkably improved adsorption performance, greatly improved adsorption capacity and humidity-regulating capacity of a wall surface, and better purification effect, temperature-controlling effect and humidity-regulating effect can be obtained;
(2) the diatom ooze material provided by the invention has pores with different grades of pores and macropores, the proportion of pore channels is regulated and controlled by controlling the proportional relation between diatomite and column chromatography silica gel, secondary pore channels formed by stacking powder with different particle sizes are several to several hundred nanometers, pore diameters with different sizes can coexist, and the adsorption force on organic molecules with different sizes is enhanced by utilizing different pore sizes, so that the adsorption effect is exerted together;
(3) the diatom ooze material is used for coating the wall surface, and has the advantages of low cost, high strength, static resistance and high adsorption capacity.
The invention will be further illustrated with reference to the following specific examples. It should be understood that these examples are for illustrative purposes only and are not intended to limit the scope of the present invention. The experimental procedures, in which specific conditions are not noted in the following examples, are generally carried out under conventional conditions or conditions recommended by the manufacturers. Unless otherwise indicated, percentages and parts are percentages and parts by weight.
The test materials and reagents used in the following examples are commercially available without specific reference.
General procedure
In the following examples and comparative examples, formaldehyde purification efficiency, durability of formaldehyde purification effect, toluene purification efficiency, and durability of toluene purification effect were measured according to JC/T1074-;
the moisture absorption amount 24h and the moisture release amount 24h are detected according to JC/T2082-;
the VOC content of volatile organic compounds, the sum of free formaldehyde, benzene toluene ethylbenzene xylene and soluble heavy metals are detected according to GB 18582-.
Example 1
Taking 10 parts of diatomite, 10 parts of A-type silica gel, 10 parts of C-type silica gel, 10 parts of kaolin, 3 parts of redispersible latex powder, 1 part of lignocellulose, 5 parts of titanium white powder photocatalyst, 15 parts of sierozem powder, 1 part of cellulose ether and 35 parts of double-flying powder, uniformly mixing, adding into a powder mixer, and fully stirring for 30-40 minutes to form a premix.
And mixing the premix with water until the premix is uniform to obtain the ash slurry-like diatomite material.
Example 2
Taking 15 parts of diatomite, 15 parts of A-type silica gel, 15 parts of C-type silica gel, 10 parts of kaolin, 3 parts of latex powder, 1 part of wood fiber, 5 parts of titanium dioxide powder photocatalyst, 15 parts of sierozem powder, 1 part of cellulose ether and 25 parts of calcium carbonate, mixing uniformly, adding into a powder mixer, and fully stirring for 30-40 minutes to form a premix.
And mixing the premix with water until the premix is uniform to obtain the ash slurry-like diatomite material.
The specific surface test results and the aperture distribution maps are shown in fig. 1 and 2. The infrared spectrum results are shown in FIG. 3.
As can be seen from the figures 1 and 2, the obtained diatom ooze coating has a high specific surface and a pore size distribution range of 2-8 nm; as can be seen from FIG. 3, the wave number of 3445cm-1 on the infrared spectrogram is mainly the water absorption peak bonded on the surface of the diatom ooze coating, and the wave number of 1092cm-1 is mainly the Si-OH absorption peak on the structure of the diatom ooze coating, and the diatom ooze coating is higher than the surface, has moderate pore size distribution and can absorb a lot of organic micromolecules; and the surface contains a large amount of Si-OH, so that the humidity can be fully regulated, and polar organic small molecules can be strongly absorbed.
Example 3
20 parts of diatomite, 10 parts of A-type silica gel, 5 parts of C-type silica gel, 15 parts of kaolin, 3 parts of latex powder, 1 part of wood fiber, 5 parts of titanium dioxide powder photocatalyst, 10 parts of ash calcium powder, 1 part of cellulose ether and 30 parts of calcium peroxide are uniformly mixed and then added into a powder mixer to be fully mixed for 30-40 minutes to form a premix.
And mixing the premix with water until the premix is uniform to obtain the ash slurry-like diatomite material.
Example 4
Taking 20 parts of diatomite, 5 parts of A-type silica gel, 10 parts of C-type silica gel, 15 parts of kaolin, 3 parts of latex powder, 1 part of wood fiber, 5 parts of titanium dioxide powder photocatalyst, 10 parts of ash calcium powder, 1 part of cellulose ether and 30 parts of calcium peroxide, mixing uniformly, adding into a powder mixer, and fully stirring for 30-40 minutes to form a premix.
And mixing the premix with water until the premix is uniform to obtain the ash slurry-like diatomite material.
Table 1 test results of examples
Comparative examples 1 to 4:
the formulation is basically the same as that of examples 1-3, except that A + C column chromatography silica gel is replaced by the same amount of MCM-41 mesoporous molecular sieve.
Comparative examples 4 to 6:
the formulation is basically the same as in examples 1-4, except that the A + C column chromatography silica gel is replaced by the same amount of column chromatography silica gel containing only A, which is as follows:
comparative example 4
Taking 10 parts of diatomite, 20 parts of A-type silica gel, 0 part of C-type silica gel, 10 parts of kaolin, 3 parts of redispersible latex powder, 1 part of lignocellulose, 5 parts of titanium white powder photocatalyst, 15 parts of sierozem powder, 1 part of cellulose ether and 35 parts of double-flying powder, uniformly mixing, adding into a powder mixer, and fully stirring for 30-40 minutes to form a premix.
And mixing the premix with water until the premix is uniform to obtain the ash slurry-like diatomite material.
Comparative example 5
Taking 15 parts of diatomite, 30 parts of A-type silica gel, 0 part of C-type silica gel, 10 parts of kaolin, 3 parts of latex powder, 1 part of wood fiber, 5 parts of titanium dioxide powder photocatalyst, 15 parts of ash calcium powder, 1 part of cellulose ether and 25 parts of calcium carbonate, mixing uniformly, adding into a powder mixer, and fully stirring for 30-40 minutes to form a premix.
And mixing the premix with water until the premix is uniform to obtain the ash slurry-like diatomite material.
Comparative example 6
Taking 20 parts of diatomite, 15 parts of A-type silica gel, 0 part of C-type silica gel, 15 parts of kaolin, 3 parts of latex powder, 1 part of wood fiber, 5 parts of titanium dioxide powder photocatalyst, 10 parts of ash calcium powder, 1 part of cellulose ether and 30 parts of calcium peroxide, uniformly mixing, adding into a powder mixer, and fully stirring for 30-40 minutes to form a premix.
And mixing the premix with water until the premix is uniform to obtain the ash slurry-like diatomite material.
Comparative examples 7 to 9:
the formulation is basically the same as in examples 1-4, except that the A + C column chromatography silica gel is replaced by the same amount of C-only column chromatography silica gel, as follows:
comparative example 7
Taking 10 parts of diatomite, 0 part of A-type silica gel, 20 parts of C-type silica gel, 10 parts of kaolin, 3 parts of redispersible latex powder, 1 part of lignocellulose, 5 parts of titanium white powder photocatalyst, 15 parts of sierozem powder, 1 part of cellulose ether and 35 parts of double-flying powder, uniformly mixing, adding into a powder mixer, and fully stirring for 30-40 minutes to form a premix.
And mixing the premix with water until the premix is uniform to obtain the ash slurry-like diatomite material.
Comparative example 8
Taking 15 parts of diatomite, 0 part of A-type silica gel, 30 parts of C-type silica gel, 10 parts of kaolin, 3 parts of latex powder, 1 part of wood fiber, 5 parts of titanium dioxide powder photocatalyst, 15 parts of sierozem powder, 1 part of cellulose ether and 25 parts of calcium carbonate, mixing uniformly, adding into a powder mixer, and fully stirring for 30-40 minutes to form a premix. And mixing the premix with water until the premix is uniform to obtain the ash slurry-like diatomite material.
Comparative example 9
20 parts of diatomite, 0 part of A-type silica gel, 15 parts of C-type silica gel, 15 parts of kaolin, 3 parts of latex powder, 1 part of wood fiber, 5 parts of titanium dioxide powder photocatalyst, 10 parts of ash calcium powder, 1 part of cellulose ether and 30 parts of calcium peroxide are uniformly mixed and then added into a powder mixer to be fully mixed for 30-40 minutes to form a premix.
And mixing the premix with water until the premix is uniform to obtain the ash slurry-like diatomite material.
The mortar-like diatomaceous earth materials obtained in comparative examples 1 to 9 were examined for their properties, and the results are shown in Table 2.
Table 2 comparative example test results
From the experimental results in tables 1 and 2, it can be seen that, although the MCM-41 molecular sieve (greater than or equal to 42 ten thousand/ton) has almost no difference from the diatom ooze of the present invention in terms of toluene purification rate and toluene purification durability, due to the abundant surface hydroxyl groups of the diatomite composition added in the present invention, the purification efficiency and durability of the diatom ooze of the present invention to polar small molecular formaldehyde are far higher than those of the comparative experimental results, and the results of the present invention are also far higher than those of the comparative experimental results in terms of moisture absorption and humidity control functions.
From the experimental results in tables 1 and 2, it can be seen that although the formula contains one column chromatography silica gel, the combination of two types of silica gel can improve the purification efficiency and humidity regulation capability, and it is possible to benefit from the combination of two different types of silica gel to form a richer pore size distribution and surface structure.
All documents referred to herein are incorporated by reference into this application as if each were individually incorporated by reference. Furthermore, it should be understood that various changes and modifications of the present invention can be made by those skilled in the art after reading the above teachings of the present invention, and these equivalents also fall within the scope of the present invention as defined by the appended claims.
Claims (10)
1. A diatomaceous earth composition, comprising:
1-50 parts by weight of diatomite; and
1 to 60 parts by weight of column chromatography silica gel,
wherein, column chromatography silica gel includes A type silica gel and C type silica gel, wherein the weight ratio of A type silica gel and C type silica gel is 0.05-10: 1,
the aperture size of the A-type silica gel is 2-3nm, the content of the silicon dioxide is more than or equal to 99 percent, and the specific surface area is 600-800m2The mesh number is 300-800 meshes, and the surface hydroxyl content is 5-10 SiOH nm-2；
The pore size of the C-type silica gel is 8-10nm, the content of the silicon dioxide is more than or equal to 99 percent, and the specific surface area is 300-400m2The mesh number is 300-800 meshes, and the surface hydroxyl content is 5-10 SiOH nm-2。
2. The diatomaceous earth composition of claim 1, wherein the diatomaceous earth composition comprises:
5-30 parts by weight of diatomite; and
1-40 parts of column chromatography silica gel.
3. The diatomaceous earth composition of claim 1, wherein the weight ratio of silica gel type a to silica gel type C is from 0.08 to 5: 1.
4. The diatomaceous earth composition of claim 1, wherein the weight ratio of the type a silica gel to the type C silica gel is from 0.2 to 5: 1.
5. the diatomaceous earth composition of claim 1, wherein the diatomaceous earth composition has one or more of the following characteristics:
(1) the aperture size of the A-type silica gel is 2.2-2.8 nm;
(2) the pore size of the C-type silica gel is 8.5-9.5 nm;
(3) the content of silicon dioxide in the A-type silica gel is more than or equal to 99.5 percent;
(4) the content of silicon dioxide in the C-type silica gel is more than or equal to 99.5 percent;
(5) the particle size range of the diatomite is 400-800 meshes;
(6) the whiteness of the diatomite is more than or equal to 70;
(7) the surface hydroxyl content of the diatomite composition is 1-10 SiOH nm-2；
(8) The specific surface area of the diatomite composition is 200-600 m2/g。
6. A diatom ooze coating, comprising the diatomaceous earth composition of any one of claims 1-5 and an adjuvant.
7. The diatom ooze coating of claim 6, wherein the excipients are a boomerang, sierozem powder, kaolin, lignocellulose, titanium white powder photocatalyst, redispersible latex powder and cellulose ether.
8. The diatom ooze coating of claim 7, wherein said diatom ooze coating comprises:
0-50 parts of double-flying powder, 5-30 parts of sierozem powder, 5-30 parts of kaolin, 0.5-2 parts of lignocellulose, 2-10 parts of titanium white powder photocatalyst, 1-5 parts of redispersible latex powder and 0.5-5 parts of cellulose ether.
9. The diatom ooze coating of claim 7 or claim 8, further comprising one or more of the following characteristics:
(1) the particle size range of the double-flying powder is 400-800 meshes;
(2) the particle size range of the sierozem powder is 400-800 meshes;
(3) the particle size range of the titanium dioxide photocatalyst is 800-1200 meshes;
(4) the particle size range of the kaolin is 800-1200 meshes;
(5) the redispersible latex powder is selected from the group consisting of: one or more of copolymer rubber powder of vinyl acetate and ethylene, terpolymer rubber powder of vinyl acetate, ethylene and higher fatty acid vinyl ester, copolymer rubber powder of vinyl acetate and higher fatty acid vinyl ester, copolymer rubber powder of acrylate and styrene, terpolymer rubber powder of vinyl acetate, acrylate and higher fatty acid vinyl ester, homopolymer rubber powder of vinyl acetate and copolymer rubber powder of styrene and butadiene;
(6) the cellulose ether is selected from the group consisting of: a hydroxymethylcellulose ether, a hydroxyethylcellulose ether, a hydroxypropylmethylcellulose ether, or a combination thereof;
(7) the length of the lignocellulose ranges from 1 mm to 3 mm.
10. Use of the diatomaceous earth composition of claim 1 or the diatom ooze coating of claim 6 as upholstery material.
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104310852A (en) * | 2014-10-11 | 2015-01-28 | 殷利民 | Novel diatom ooze material and construction process thereof |
| CN104649640A (en) * | 2015-01-06 | 2015-05-27 | 长白朝鲜族自治县北疆硅藻土新材料科技有限公司 | Multilevel hole control type diatom ooze |
| CN104761202A (en) * | 2015-03-28 | 2015-07-08 | 桐城市慧琦工贸有限公司 | Novel strong diatom ooze construction material |
| CN106032312A (en) * | 2015-03-18 | 2016-10-19 | 山西亮龙涂料有限公司 | Diatom mud and preparation method thereof |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104310852A (en) * | 2014-10-11 | 2015-01-28 | 殷利民 | Novel diatom ooze material and construction process thereof |
| CN104649640A (en) * | 2015-01-06 | 2015-05-27 | 长白朝鲜族自治县北疆硅藻土新材料科技有限公司 | Multilevel hole control type diatom ooze |
| CN106032312A (en) * | 2015-03-18 | 2016-10-19 | 山西亮龙涂料有限公司 | Diatom mud and preparation method thereof |
| CN104761202A (en) * | 2015-03-28 | 2015-07-08 | 桐城市慧琦工贸有限公司 | Novel strong diatom ooze construction material |
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