CN111303658A - Environment-friendly pigment free of heavy metal and preparation method thereof - Google Patents
Environment-friendly pigment free of heavy metal and preparation method thereof Download PDFInfo
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- CN111303658A CN111303658A CN202010183262.1A CN202010183262A CN111303658A CN 111303658 A CN111303658 A CN 111303658A CN 202010183262 A CN202010183262 A CN 202010183262A CN 111303658 A CN111303658 A CN 111303658A
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09B—ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES, e.g. PIGMENTS; MORDANTS; LAKES
- C09B67/00—Influencing the physical, e.g. the dyeing or printing properties of dyestuffs without chemical reactions, e.g. by treating with solvents grinding or grinding assistants, coating of pigments or dyes; Process features in the making of dyestuff preparations; Dyestuff preparations of a special physical nature, e.g. tablets, films
- C09B67/0001—Post-treatment of organic pigments or dyes
- C09B67/0004—Coated particulate pigments or dyes
- C09B67/0008—Coated particulate pigments or dyes with organic coatings
- C09B67/0013—Coated particulate pigments or dyes with organic coatings with polymeric coatings
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B32/00—Carbon; Compounds thereof
- C01B32/30—Active carbon
- C01B32/306—Active carbon with molecular sieve properties
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B32/00—Carbon; Compounds thereof
- C01B32/30—Active carbon
- C01B32/312—Preparation
- C01B32/318—Preparation characterised by the starting materials
- C01B32/324—Preparation characterised by the starting materials from waste materials, e.g. tyres or spent sulfite pulp liquor
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09B—ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES, e.g. PIGMENTS; MORDANTS; LAKES
- C09B67/00—Influencing the physical, e.g. the dyeing or printing properties of dyestuffs without chemical reactions, e.g. by treating with solvents grinding or grinding assistants, coating of pigments or dyes; Process features in the making of dyestuff preparations; Dyestuff preparations of a special physical nature, e.g. tablets, films
- C09B67/0071—Process features in the making of dyestuff preparations; Dehydrating agents; Dispersing agents; Dustfree compositions
- C09B67/0075—Preparations with cationic dyes
- C09B67/0076—Preparations of cationic or basic dyes in liquid form
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D17/00—Pigment pastes, e.g. for mixing in paints
- C09D17/003—Pigment pastes, e.g. for mixing in paints containing an organic pigment
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Materials Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Wood Science & Technology (AREA)
- Environmental & Geological Engineering (AREA)
- Pigments, Carbon Blacks, Or Wood Stains (AREA)
Abstract
The invention discloses an environment-friendly pigment without heavy metal and a preparation method thereof, wherein the environment-friendly pigment comprises the following components: water-soluble basic dye, bagasse carbon molecular sieve, modified fullerene, water-based acrylic emulsion prepolymer, emulsifier, initiator and water. Firstly, preparing a micro-nano bagasse carbon molecular sieve by using bagasse polysaccharide solids and phenolic resin as raw materials, and then uniformly mixing the molecular sieve, water-soluble basic dye and fullerene to enable the water-soluble basic dye to be adsorbed on the surface of the bagasse carbon molecular sieve to form a dispersion; and then adding the water-based acrylic emulsion prepolymer, an emulsifier and an initiator to carry out heat preservation reaction. Compared with the traditional method of adopting activated clay as an adsorbing material, the environment-friendly pigment without heavy metal has the main advantages that the particle size distribution of the pigment is more uniform, and the particle size is controllable according to actual needs.
Description
Technical Field
The invention relates to the technical field of pigments, in particular to an environment-friendly pigment without heavy metals and a preparation method thereof.
Background
Organic pigments produced and sold on the market to date are chemically predominantly water-insoluble organic compounds. Since these organic compounds are water-insoluble, their particle size and distribution must be controlled in order to impart pigmentary properties (Shengejia eds., organic pigments- -variety and applications (2 nd edition), chemical industry Press, 2007.7, Beijing). However, no matter how controlled, the particle size distribution of the water-insoluble organic compound formed after the chemical reaction is still very broad, D50Between 0.5 and 100 μm. The wide particle size distribution results in relatively poor quality organic pigments which can only be used for low end industrial coloring. On the other hand, one of the main uses of organic pigments is as a mill base for paints. So-called mill bases, whose purpose is to provide colour to the paint, are commercially available in the form of dispersions of organic pigments in water. In this case, since the particle diameter of the organic pigment particles is fine, the particle diameter distribution D thereof50Between 2 and 5 μm. The dispersant is used to stabilize the water. It is also because the organic pigment particles in the dispersion are so fine that they cannot be used to obtain pigment solids using conventional liquid/solid separation methods, but can only be used in the form of a slurry. In short, a particle size distribution D is to be obtained50In the pigment of 2-5 μm, the particle size of the organic pigment particles needs to be refined by sanding, and the product obtained after sanding is a dispersion of the pigment in water, called color paste for short, and is actually a pigment preparation.
As described above, the organic pigments produced by the conventional methods have coarse particles and a very broad particle size distribution after the reaction, and in order to be used for coloring paints, it is necessary to use a special refining process for the coarse particles to obtain a particle size distribution D of the pigment particles50Between 2 and 5 μm.
The Chinese invention patent CN108314907A discloses a micro-nano particle size organic-inorganic resin coated pigment and a preparation method thereof, the pigment color paste is composed of activated clay, water-soluble basic dye and water-based acrylic resin, the preparation method does not need sand grinding processing, and the pigment color paste can be directly obtained after the reaction is finished.
Because the method needs to use imported activated clay, compared with the traditional pigment, the cost is much higher, the application and popularization of the pigment are influenced, and meanwhile, the particle size distribution of the pigment is also required to be further improved, so the invention provides the environment-friendly pigment without heavy metal and the preparation method thereof.
Disclosure of Invention
Based on the technical problems in the background art, the invention provides an environment-friendly pigment without heavy metal and a preparation method thereof.
The technical scheme of the invention is as follows:
the environment-friendly pigment without heavy metals comprises the following components in percentage by weight: 0.4-1.2% of water-soluble basic dye, 8-15% of bagasse carbon molecular sieve, 0.05-0.1% of modified fullerene, 1.2-2.5% of water-based acrylic emulsion prepolymer, 0.1-0.15% of emulsifier, 0.5-1.5% of initiator and the balance of water.
Preferably, the bagasse carbon molecular sieve is adjustable in particle size, and is further preferably 8000 meshes.
Preferably, the modified fullerene is a hydrophilic fullerene derivative.
Preferably, the fullerene body of the hydrophilic fullerene derivative is a carbon cage containing 50 to 120 carbon atoms, the hydrophilic fullerene derivative contains 1 to 6 flexible ether oxygen chains, and the addition site of a methylene group on the fullerene is one of [5, 6] and [6, 6 ]; the structural formula is:
wherein R is1，R2Is one of phenyl, carbonyl, alkyl, aryl and substituted aryl and any combination thereof;
where n takes any number between 1 and 3.
The initiator adopts ammonium persulfate; the emulsifier adopts OP-10.
A preparation method of an environment-friendly pigment without heavy metal comprises the following steps:
step one, adding water into water-soluble basic dye, stirring at room temperature to fully dissolve the water-soluble basic dye, then adding bagasse carbon molecular sieve and modified fullerene, uniformly mixing, and standing for 3-5 hours to enable the water-soluble basic dye to be adsorbed on the surface of the bagasse carbon molecular sieve to form a dispersion;
and step two, adding the water-based acrylic emulsion prepolymer, uniformly stirring by electromagnetic stirring, adding the mixture into the dispersion, dripping an emulsifier, heating the mixture under high-speed stirring to raise the temperature of the materials to 80-86 ℃, adding an initiator, and keeping the temperature for reaction for 5-8 hours after the addition is finished.
Preferably, the preparation method of the bagasse carbon molecular sieve comprises the following steps:
a. proportioning raw materials; uniformly mixing bagasse polysaccharide solid and phenolic resin, and heating for 2-3h at the temperature of 150 ℃ and 200 ℃ under the protection of nitrogen to obtain a mixture;
b. planetary ball milling the mixture and crushing to 250 meshes;
c. adding phenolic resin into the mixture, kneading, extruding and forming into a particle sample;
d. placing the sample in a furnace pipe, heating to 900-950 ℃ under the protection of nitrogen for carbonization;
e. adding the sample into a potassium hydroxide solution, uniformly stirring, performing ball milling, sieving with a 800-mesh sieve, filtering, performing filter pressing, and drying;
f. placing the sample in a converter, heating to 600-650 ℃ under the protection of nitrogen, and activating for 5-6h under the protection of nitrogen;
g. and (3) pickling the sample with hydrochloric acid, repeatedly carrying out ball milling, sieving with a 8000-mesh sieve, and drying at 40-50 ℃ to obtain the bagasse carbon molecular sieve.
Preferably, in the step g, the 8000 mesh sieve can be adjusted according to actual needs.
The invention has the advantages that: the environment-friendly pigment without heavy metal comprises the following components: water-soluble basic dye, bagasse carbon molecular sieve, modified fullerene, water-based acrylic emulsion prepolymer, emulsifier, initiator and water. Firstly, preparing a micro-nano bagasse carbon molecular sieve by using bagasse polysaccharide solids and phenolic resin as raw materials, and then uniformly mixing the molecular sieve, water-soluble basic dye and fullerene to enable the water-soluble basic dye to be adsorbed on the surface of the bagasse carbon molecular sieve to form a dispersion; and then adding the water-based acrylic emulsion prepolymer, an emulsifier and an initiator to carry out heat preservation reaction. Compared with the traditional method of adopting activated clay as an adsorbing material, the environment-friendly pigment without heavy metal has the main advantages that the particle size distribution of the pigment is more uniform, and the particle size is controllable according to actual needs.
Detailed Description
Example 1
The environment-friendly pigment without heavy metals comprises the following components in percentage by weight: 0.8% of water-soluble basic dye, 12% of bagasse carbon molecular sieve, 0.07% of modified fullerene, 1.6% of water-based acrylic emulsion prepolymer, 0.12% of emulsifier, 0.9% of initiator and the balance of water.
The water-soluble basic dye is C.I. basic yellow 40.
The modified fullerene is a hydrophilic fullerene derivative.
The fullerene body of the hydrophilic fullerene derivative is a carbon cage containing 50 to 120 carbon atoms, the hydrophilic fullerene derivative contains 1 to 6 flexible ether oxygen chains, and the addition site of a methylene on the fullerene is one of [5, 6] and [6, 6 ]; the structural formula is:
wherein R is1，R2Is one of phenyl, carbonyl, alkyl, aryl and substituted aryl and any combination thereof;
where n takes any number between 1 and 3.
The initiator adopts ammonium persulfate; the emulsifier adopts OP-10.
A preparation method of an environment-friendly pigment without heavy metal comprises the following steps:
step one, adding water into water-soluble basic dye, stirring at room temperature to completely dissolve the water-soluble basic dye, then adding bagasse carbon molecular sieve and modified fullerene, uniformly mixing, and standing for 4.5 hours to enable the water-soluble basic dye to be adsorbed on the surface of the bagasse carbon molecular sieve to form a dispersion;
and step two, adding the water-based acrylic emulsion prepolymer, uniformly stirring by electromagnetic stirring, adding the mixture into the dispersion, dripping an emulsifier, heating the mixture under high-speed stirring to raise the temperature of the materials to 82 ℃, adding an initiator, and carrying out heat preservation reaction for 6.5 hours after the addition is finished.
The preparation method of the bagasse carbon molecular sieve comprises the following steps:
a. proportioning raw materials; uniformly mixing bagasse polysaccharide solid and phenolic resin, and heating for 2.5 hours at 180 ℃ under the protection of nitrogen to obtain a mixture;
b. planetary ball milling the mixture and crushing to 250 meshes;
c. adding phenolic resin into the mixture, kneading, extruding and forming into a particle sample;
d. putting the sample in a furnace, heating to 920 ℃ under the protection of nitrogen, and carbonizing;
e. adding the sample into a potassium hydroxide solution, uniformly stirring, performing ball milling, sieving with a 800-mesh sieve, filtering, performing filter pressing, and drying;
f. putting the sample into a converter, heating to 620 ℃ under the protection of nitrogen, and activating for 5.5 hours under the protection of nitrogen;
g. and (3) pickling the sample with hydrochloric acid, repeatedly carrying out ball milling, sieving with a 8000-mesh sieve, and drying at 42 ℃ to obtain the bagasse carbon molecular sieve.
Example 2
The environment-friendly pigment without heavy metals comprises the following components in percentage by weight: 1.2% of water-soluble basic dye, 8% of bagasse carbon molecular sieve, 0.1% of modified fullerene, 1.2% of water-based acrylic emulsion prepolymer, 0.15% of emulsifier, 0.5% of initiator and the balance of water.
The water-soluble basic dye is C.I. basic yellow 40.
The modified fullerene is a hydrophilic fullerene derivative.
The fullerene body of the hydrophilic fullerene derivative is a carbon cage containing 50 to 120 carbon atoms, the hydrophilic fullerene derivative contains 1 to 6 flexible ether oxygen chains, and the addition site of a methylene on the fullerene is one of [5, 6] and [6, 6 ]; the structural formula is:
wherein R is1，R2Is one of phenyl, carbonyl, alkyl, aryl and substituted aryl and any combination thereof;
where n takes any number between 1 and 3.
The initiator adopts ammonium persulfate; the emulsifier adopts OP-10.
A preparation method of an environment-friendly pigment without heavy metal comprises the following steps:
step one, adding water into water-soluble basic dye, stirring at room temperature to completely dissolve the water-soluble basic dye, then adding bagasse carbon molecular sieve and modified fullerene, uniformly mixing, and standing for 3 hours to enable the water-soluble basic dye to be adsorbed on the surface of the bagasse carbon molecular sieve to form a dispersion;
and step two, adding the water-based acrylic emulsion prepolymer, uniformly stirring by electromagnetic stirring, adding the mixture into the dispersion, dripping an emulsifier, heating the mixture under high-speed stirring to raise the temperature of the materials to 86 ℃, adding an initiator, and carrying out heat preservation reaction for 5 hours after the addition is finished.
The preparation method of the bagasse carbon molecular sieve comprises the following steps:
a. proportioning raw materials; uniformly mixing bagasse polysaccharide solid and phenolic resin, and heating for 2 hours at 200 ℃ under the protection of nitrogen to obtain a mixture;
b. planetary ball milling the mixture and crushing to 250 meshes;
c. adding phenolic resin into the mixture, kneading, extruding and forming into a particle sample;
d. putting the sample in a furnace pipe, heating to 950 ℃ under the protection of nitrogen, and carbonizing;
e. adding the sample into a potassium hydroxide solution, uniformly stirring, performing ball milling, sieving with a 800-mesh sieve, filtering, performing filter pressing, and drying;
f. putting the sample into a converter, heating to 600 ℃ under the protection of nitrogen, and activating for 5-6h under the protection of nitrogen;
g. and (3) pickling the sample with hydrochloric acid, repeatedly carrying out ball milling, sieving with a 8000-mesh sieve, and drying at 50 ℃ to obtain the bagasse carbon molecular sieve.
Example 3
The environment-friendly pigment without heavy metals comprises the following components in percentage by weight: 0.4% of water-soluble basic dye, 15% of bagasse carbon molecular sieve, 0.05% of modified fullerene, 2.5% of water-based acrylic emulsion prepolymer, 0.1% of emulsifier, 1.5% of initiator and the balance of water.
The water-soluble basic dye is C.I. basic yellow 40.
The modified fullerene is a hydrophilic fullerene derivative.
The fullerene body of the hydrophilic fullerene derivative is a carbon cage containing 50 to 120 carbon atoms, the hydrophilic fullerene derivative contains 1 to 6 flexible ether oxygen chains, and the addition site of a methylene on the fullerene is one of [5, 6] and [6, 6 ]; the structural formula is:
wherein R is1，R2Is one of phenyl, carbonyl, alkyl, aryl and substituted aryl and any combination thereof;
where n takes any number between 1 and 3.
The initiator adopts ammonium persulfate; the emulsifier adopts OP-10.
A preparation method of an environment-friendly pigment without heavy metal comprises the following steps:
step one, adding water into water-soluble basic dye, stirring at room temperature to completely dissolve the water-soluble basic dye, then adding bagasse carbon molecular sieve and modified fullerene, uniformly mixing, and standing for 5 hours to enable the water-soluble basic dye to be adsorbed on the surface of the bagasse carbon molecular sieve to form a dispersion;
and step two, adding the water-based acrylic emulsion prepolymer, uniformly stirring by electromagnetic stirring, adding the mixture into the dispersion, dripping an emulsifier, heating the mixture under high-speed stirring to raise the temperature of the materials to 80 ℃, adding an initiator, and carrying out heat preservation reaction for 8 hours after the addition is finished.
The preparation method of the bagasse carbon molecular sieve comprises the following steps:
a. proportioning raw materials; uniformly mixing bagasse polysaccharide solid and phenolic resin, and heating for 3 hours at 150 ℃ under the protection of nitrogen to obtain a mixture;
b. planetary ball milling the mixture and crushing to 250 meshes;
c. adding phenolic resin into the mixture, kneading, extruding and forming into a particle sample;
d. putting the sample in a furnace pipe, heating to 900 ℃ under the protection of nitrogen, and carbonizing;
e. adding the sample into a potassium hydroxide solution, uniformly stirring, performing ball milling, sieving with a 800-mesh sieve, filtering, performing filter pressing, and drying;
f. putting the sample into a converter, heating to 650 ℃ under the protection of nitrogen, and activating for 5-6h under the protection of nitrogen;
g. and (3) pickling the sample with hydrochloric acid, repeatedly carrying out ball milling, sieving with a 8000-mesh sieve, and drying at 40 ℃ to obtain the bagasse carbon molecular sieve.
Comparative example 1
The hydrophilic fullerene derivative in example 1 was removed, and the rest of the formulation and preparation method were unchanged.
Comparative example 2
The hydrophilic fullerene derivative in the example 1 is replaced by the conventional football alkene C60, and the rest proportion and the preparation method are unchanged.
Examples 1 to 3 and comparative examples 1 to 2 and comparative example (Chinese patent CN 108314907A)
The pigment sample of example 1) was examined for the range of particle size distribution, and the following results were obtained, and the specific results are shown in Table 1.
Table 1: the results of particle size distribution measurements of the pigment samples of examples 1 to 3, comparative examples 1 to 2, and comparative example;
| example 1 | Example 2 | Example 3 | Comparative example 1 | Comparative example 2 | Comparative example | |
| D50(μm) | 2-5 | 2-5 | 2-5 | 0.2-10 | 1.2-8 | 2-5 |
| D70(μm) | 1-7 | 0.8-8 | 1-7 | 0.05-20 | 0.7-12 | 0.5-10 |
From the above test data, it can be known that the particle size distribution of the environment-friendly pigment containing no heavy metal of the present invention is very uniform.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (7)
1. The environment-friendly pigment without heavy metals is characterized by comprising the following components in percentage by weight: 0.4-1.2% of water-soluble basic dye, 8-15% of bagasse carbon molecular sieve, 0.05-0.1% of modified fullerene, 1.2-2.5% of water-based acrylic emulsion prepolymer, 0.1-0.15% of emulsifier, 0.5-1.5% of initiator and the balance of water.
2. The environment-friendly pigment free of heavy metals according to claim 1, wherein the bagasse carbon molecular sieve has an adjustable particle size, and is further preferably 8000 mesh.
3. The environmentally friendly pigment of claim 1, wherein the modified fullerene is a hydrophilic fullerene derivative.
4. The environmentally friendly pigment of claim 1, wherein the fullerene body of the hydrophilic fullerene derivative is a carbon cage containing 50 to 120 carbon atoms, the hydrophilic fullerene derivative contains 1 to 6 flexible ether oxygen chains, and the addition site of the fullerene containing methylene is one of [5, 6] and [6, 6 ]; the structural formula is:
wherein R is1，R2Is one of phenyl, carbonyl, alkyl, aryl and substituted aryl and any combination thereof;
where n takes any number between 1 and 3.
5. The preparation method of the environment-friendly pigment without heavy metals is characterized by comprising the following steps:
step one, adding water into water-soluble basic dye, stirring at room temperature to fully dissolve the water-soluble basic dye, then adding bagasse carbon molecular sieve and modified fullerene, uniformly mixing, and standing for 3-5 hours to enable the water-soluble basic dye to be adsorbed on the surface of the bagasse carbon molecular sieve to form a dispersion;
and step two, adding the water-based acrylic emulsion prepolymer, uniformly stirring by electromagnetic stirring, adding the mixture into the dispersion, dripping an emulsifier, heating the mixture under high-speed stirring to raise the temperature of the materials to 80-86 ℃, adding an initiator, and keeping the temperature for reaction for 5-8 hours after the addition is finished.
6. The method for preparing environment-friendly pigment without heavy metal according to claim 5, wherein the bagasse carbon molecular sieve is prepared by the method comprising the following steps:
a. proportioning raw materials; uniformly mixing bagasse polysaccharide solid and phenolic resin, and heating for 2-3h at the temperature of 150 ℃ and 200 ℃ under the protection of nitrogen to obtain a mixture;
b. planetary ball milling the mixture and crushing to 250 meshes;
c. adding phenolic resin into the mixture, kneading, extruding and forming into a particle sample;
d. placing the sample in a furnace pipe, heating to 900-950 ℃ under the protection of nitrogen for carbonization;
e. adding the sample into a potassium hydroxide solution, uniformly stirring, performing ball milling, sieving with a 800-mesh sieve, filtering, performing filter pressing, and drying;
f. placing the sample in a converter, heating to 600-650 ℃ under the protection of nitrogen, and activating for 5-6h under the protection of nitrogen;
g. and (3) pickling the sample with hydrochloric acid, repeatedly carrying out ball milling, sieving with a 8000-mesh sieve, and drying at 40-50 ℃ to obtain the bagasse carbon molecular sieve.
7. The method for preparing environment-friendly pigment without heavy metal according to claim 6, wherein in the step g, the 8000 mesh sieve can be adjusted according to actual needs.
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| CN202010183262.1A CN111303658A (en) | 2020-03-16 | 2020-03-16 | Environment-friendly pigment free of heavy metal and preparation method thereof |
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| CN202010183262.1A CN111303658A (en) | 2020-03-16 | 2020-03-16 | Environment-friendly pigment free of heavy metal and preparation method thereof |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111909541A (en) * | 2020-08-26 | 2020-11-10 | 湖州思源颜料有限公司 | Preparation method of iron oxide yellow pigment with ultralow oil absorption |
| CN111944345A (en) * | 2020-08-24 | 2020-11-17 | 天长市嘉丰美术用品有限公司 | High-color-rendering oil painting pigment and production process thereof |
| CN115584154A (en) * | 2022-10-08 | 2023-01-10 | 天长市嘉丰美术用品有限公司 | Preparation process of water-soluble oil painting pigment |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103421351A (en) * | 2012-05-14 | 2013-12-04 | 珠海莱茵柯电子有限公司 | Water-based color paste and preparation method thereof |
| CN106185916A (en) * | 2016-07-09 | 2016-12-07 | 王玲燕 | A kind of method being prepared high-specific surface area nitrogen carbon molecular sieve by bagasse |
| CN109534343A (en) * | 2018-12-05 | 2019-03-29 | 山西云度知识产权服务有限公司 | A method of high-specific surface area nitrogen-preparing carbon molecular sieves are prepared by raw material of bagasse |
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2020
- 2020-03-16 CN CN202010183262.1A patent/CN111303658A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103421351A (en) * | 2012-05-14 | 2013-12-04 | 珠海莱茵柯电子有限公司 | Water-based color paste and preparation method thereof |
| CN106185916A (en) * | 2016-07-09 | 2016-12-07 | 王玲燕 | A kind of method being prepared high-specific surface area nitrogen carbon molecular sieve by bagasse |
| CN109534343A (en) * | 2018-12-05 | 2019-03-29 | 山西云度知识产权服务有限公司 | A method of high-specific surface area nitrogen-preparing carbon molecular sieves are prepared by raw material of bagasse |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111944345A (en) * | 2020-08-24 | 2020-11-17 | 天长市嘉丰美术用品有限公司 | High-color-rendering oil painting pigment and production process thereof |
| CN111909541A (en) * | 2020-08-26 | 2020-11-10 | 湖州思源颜料有限公司 | Preparation method of iron oxide yellow pigment with ultralow oil absorption |
| CN115584154A (en) * | 2022-10-08 | 2023-01-10 | 天长市嘉丰美术用品有限公司 | Preparation process of water-soluble oil painting pigment |
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