CN113583473A - Nano-coated organic pigment and preparation method thereof - Google Patents
Nano-coated organic pigment and preparation method thereof Download PDFInfo
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- CN113583473A CN113583473A CN202111050051.1A CN202111050051A CN113583473A CN 113583473 A CN113583473 A CN 113583473A CN 202111050051 A CN202111050051 A CN 202111050051A CN 113583473 A CN113583473 A CN 113583473A
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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
- C09B67/0007—Coated particulate pigments or dyes with inorganic coatings
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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
- C09B67/006—Preparation of organic pigments
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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
- C09B67/0071—Process features in the making of dyestuff preparations; Dehydrating agents; Dispersing agents; Dustfree compositions
- C09B67/0079—Azoic dyestuff preparations
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09C—TREATMENT OF INORGANIC MATERIALS, OTHER THAN FIBROUS FILLERS, TO ENHANCE THEIR PIGMENTING OR FILLING PROPERTIES ; PREPARATION OF CARBON BLACK ; PREPARATION OF INORGANIC MATERIALS WHICH ARE NO SINGLE CHEMICAL COMPOUNDS AND WHICH ARE MAINLY USED AS PIGMENTS OR FILLERS
- C09C1/00—Treatment of specific inorganic materials other than fibrous fillers; Preparation of carbon black
- C09C1/36—Compounds of titanium
- C09C1/3607—Titanium dioxide
- C09C1/3653—Treatment with inorganic compounds
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09C—TREATMENT OF INORGANIC MATERIALS, OTHER THAN FIBROUS FILLERS, TO ENHANCE THEIR PIGMENTING OR FILLING PROPERTIES ; PREPARATION OF CARBON BLACK ; PREPARATION OF INORGANIC MATERIALS WHICH ARE NO SINGLE CHEMICAL COMPOUNDS AND WHICH ARE MAINLY USED AS PIGMENTS OR FILLERS
- C09C1/00—Treatment of specific inorganic materials other than fibrous fillers; Preparation of carbon black
- C09C1/36—Compounds of titanium
- C09C1/3607—Titanium dioxide
- C09C1/3669—Treatment with low-molecular organic compounds
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09C—TREATMENT OF INORGANIC MATERIALS, OTHER THAN FIBROUS FILLERS, TO ENHANCE THEIR PIGMENTING OR FILLING PROPERTIES ; PREPARATION OF CARBON BLACK ; PREPARATION OF INORGANIC MATERIALS WHICH ARE NO SINGLE CHEMICAL COMPOUNDS AND WHICH ARE MAINLY USED AS PIGMENTS OR FILLERS
- C09C1/00—Treatment of specific inorganic materials other than fibrous fillers; Preparation of carbon black
- C09C1/36—Compounds of titanium
- C09C1/3692—Combinations of treatments provided for in groups C09C1/3615 - C09C1/3684
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2006/00—Physical properties of inorganic compounds
- C01P2006/21—Attrition-index or crushing strength of granulates
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2006/00—Physical properties of inorganic compounds
- C01P2006/22—Rheological behaviour as dispersion, e.g. viscosity, sedimentation stability
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Pigments, Carbon Blacks, Or Wood Stains (AREA)
Abstract
本发明提供了纳米包覆性有机颜料，由偶氮类有机颜料、无定形硅酸铝、纳米二氧化钛、偶联剂、溶剂和分散剂制备而成。本发明优点在于，该复合颜料规避了无机颜料和有机颜料的各自的缺点，并相应继承了相互的优点来满足油墨、功能性涂料等方面的高端化的苛刻要求，复合颜料的分散性和润湿性良好，易于分散在亚克力板中；有机颜料包覆无机颜料而成的复合颜料应用于亚克力板中，通过测试力学性能(包括剪切和冲击)和耐候性测试的三项数据表征上看，剪切强度、冲击强度、耐候性符合测试标准，甚至冲击强度得到了有效的提升。The invention provides nano-encapsulated organic pigments, which are prepared from azo organic pigments, amorphous aluminum silicate, nano-titanium dioxide, coupling agents, solvents and dispersants. The advantage of the present invention is that the composite pigment avoids the respective shortcomings of inorganic pigments and organic pigments, and inherits the advantages of each other to meet the stringent requirements of high-end inks, functional coatings, etc. It has good wettability and is easy to disperse in the acrylic sheet; the composite pigment formed by coating the inorganic pigment with the organic pigment is used in the acrylic sheet, and it is characterized by three data of testing mechanical properties (including shear and impact) and weather resistance test. , the shear strength, impact strength and weather resistance meet the test standards, and even the impact strength has been effectively improved.
Description
Technical Field
The invention relates to the technical field of organic pigments, in particular to a nano-coated organic pigment and a preparation method thereof.
Background
Inorganic pigments and organic pigments belong to two main classes of pigments, wherein the inorganic pigments have good weather resistance and excellent physical properties, but cannot be produced on a large scale due to the defects of incomplete chromatogram, high heavy metal toxicity and the like. Compared with inorganic pigment, the organic pigment has the advantages of bright color, good transparency, complete variety, good chemical stability and the like. But is influenced by production equipment and process technology, the price of the organic pigment is generally higher, and the stability of comprehensive properties is poorer, wherein the comprehensive properties comprise solvent resistance, weather resistance, heat resistance and the like.
Azo and phthalocyanine have a very high percentage in the organic pigment market, and studies have shown that part of the core of the pigment is not expressed in terms of coloring, and the color of the surface of the pigment particle is caused only by the light reflected from the surface.
Because the inorganic pigment has dark color and single type, but the mechanical property of the organic pigment is insufficient, the application of the inorganic pigment and the organic pigment in the fields of high precision, high facilities and outdoor building industry is greatly limited, and the preparation of a novel composite pigment by combining the advantages of the organic pigment and the inorganic pigment is proposed, the composite pigment avoids the respective disadvantages of the inorganic pigment and the organic pigment, and correspondingly inherits the mutual advantages to meet the strict requirements of high-end in the aspects of printing ink, functional coating and the like. The method of compounding the inorganic pigment and the organic pigment is to perform modification treatment on the pigment. The currently applied technologies are a core-shell core-coating method, a high-molecular coating method, an inorganic hybridization technology, a pigment surface treatment technology and the like.
Adding nano calcium carbonate slurry into a chemical reaction container, adding an organic pigment into the container through stirring and grinding, taking silica modified by an anion modifier as an adsorption carrier, and calcining at high temperature to obtain the organic pigment/silica/nano calcium carbonate composite pigment. The composite pigment produced by the method saves cost under the condition of ensuring that the tinting strength is not changed, has uniform particle size distribution, weather resistance, heat resistance and good mechanical property.
However, the ternary composite pigment has complex process flow, complex operation, high requirements on composite time and precision, and uneven dispersion and agglomeration caused by the difference of raw material proportion.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides a nano-coated organic pigment and a preparation method thereof.
The invention solves the technical problems through the following technical means:
the nano coated organic pigment is prepared from azo organic pigment, amorphous aluminum silicate, nano titanium dioxide, a coupling agent, a solvent and a dispersing agent.
Preferably, the composite pigment comprises the following components in percentage by mass: 40-80% of azo organic pigment, 10-40% of amorphous aluminum silicate and 10-30% of titanium dioxide.
Preferably, the coupling agent accounts for 2-10% of the mass of the composite pigment.
Preferably, the mass ratio of the solvent to the composite pigment is 2-8: 1.
preferably, the amount of the dispersant is 2-10% of the mass of the composite pigment.
Preferably, the coupling agent is one or more of silane, ethylene glycol methacrylate and aluminate.
Preferably, the solvent is one or more of polyurethane methacrylate, dioctyl terephthalate and butyl phthalate.
Preferably, the azo organic pigment, the coupling agent and the nano titanium dioxide are mixed according to a certain proportion, centrifuged and vibrated uniformly, then amorphous aluminum silicate is added, the mixture is stirred and mixed uniformly, then the solvent and the dispersing agent with a certain proportion are added, and the mixture is stirred and put into a ball mill for wet ball milling to obtain the product.
Preferably, the centrifugation time is 0.5-2h, the stirring time is 0.5-2h, and the rotation speed of the stirrer is 300-.
Preferably, the ball used by the wet ball mill has a particle diameter of 1mm and a ball milling time of 6-24 h.
The invention has the advantages that: the composite pigment avoids respective defects of inorganic pigments and organic pigments, correspondingly inherits the advantages of each other to meet the rigorous requirements of high-end printing ink, functional coating and the like, has good dispersibility and wettability, and is easy to disperse in acrylic plates; the composite pigment prepared by coating the inorganic pigment with the organic pigment is applied to the acrylic plate, and the shear strength, the impact strength and the weather resistance meet the test standards and even the impact strength is effectively improved by testing three data representations of mechanical properties (including shear and impact) and weather resistance tests.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are some embodiments of the present invention, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1
Adding 1kg of azo organic pigment, 50g of coupling agent and 300g of nano titanium dioxide into a centrifugal vibrator, carrying out centrifugal vibration for 1 hour to obtain uniform substances, taking the substances into a stirring container, adding 200g of amorphous aluminum silicate, 4kg of butyl phthalate serving as a solvent and 50g of propylene glycol methyl ether serving as a dispersing agent, stirring, and putting the mixture into a ball mill for wet ball milling for 10 hours to obtain a target product.
Embodiment 2
Adding 1kg of azo organic pigment, 30g of coupling agent and 300g of nano titanium dioxide into a centrifugal vibrator, uniformly vibrating for 0.5h, adding into a stirring container, adding 100g of amorphous aluminum silicate, 4kg of butyl phthalate serving as a solvent and 40g of propylene glycol methyl ether serving as a dispersing agent, stirring, and putting into a ball mill for wet ball milling for 8h to obtain a target product 2.
Embodiment 3
Adding 800g of azo organic pigment, 60g of coupling agent and 500g of nano titanium dioxide into a centrifugal vibrator, uniformly vibrating for 1.2h, adding into a stirring container, adding 150g of amorphous aluminum silicate, 5kg of butyl phthalate serving as a solvent and 30g of propylene glycol methyl ether serving as a dispersing agent, stirring, and putting into a ball mill for wet ball milling for 8h to obtain a target product.
Embodiment 4
1kg of azo organic pigment, 40g of coupling agent and 500g of nano titanium dioxide are added into a centrifugal vibrator and uniformly vibrated for 2h, then the mixture is taken into a stirring container, 200g of amorphous aluminum silicate, 5kg of butyl phthalate as solvent and 40g of propylene glycol methyl ether as dispersing agent are added into the stirring container, and the mixture is stirred and put into a ball mill for wet ball milling for 6h to obtain the target product.
The composite pigment pastes of the above embodiments 1 to 4 were added to PMMA plexiglass plates in an amount of 1% each and their shear strength, strength and weatherability were tested.
Test results comparison table:
the synthetic pigment contains a compound with high strength of aluminum silicate, and the inorganic pigment has the defects of poor transparency, not wide color spectrum, not bright color, lower tinting strength and toxic heavy metal inorganic pigment. The organic pigment has complete color spectrum, bright color, strong tinting strength and controllable preparation, combines the advantages of the organic pigment and the inorganic pigment to prepare the novel composite pigment, avoids the respective disadvantages of the inorganic pigment and the organic pigment, correspondingly inherits the mutual advantages to meet the rigorous requirements of high-end in the aspects of printing ink, functional coating and the like, has good dispersibility and wettability, and is easy to disperse in acrylic plates.
The composite pigment prepared by coating the inorganic pigment with the organic pigment is applied to the acrylic plate, and the shear strength, the impact strength and the weather resistance meet the test standards and even the impact strength is effectively improved by testing three data representations of mechanical properties (including shear and impact) and weather resistance tests.
The composite pigment with organic pigment as shell and inorganic nanometer titania/aluminum silicate as core has saturated color shown in the surface color of the organic pigment, and the compounding of the nanometer titania/aluminum silicate ensures the homogeneous dispersion and adsorption of titania on the surface of amorphous aluminum silicate, raises the weather stability and mechanical and physical performance of the amorphous aluminum silicate while avoiding the agglomeration of nanometer titania, and increases the specific surface area of the modified nanometer titania/amorphous aluminum silicate greatly so as to result in excellent coating effect of the azo organic pigment.
The azo pigments herein are not limited to organic pigments of one or a certain color system, but are limited to the problem that even if many of the organic pigments are azo pigments, the tinting strength, hiding power and oil absorption index are different in different color systems, so that the alternative azo pigments cannot be matched with the nano titanium dioxide/aluminum silicate to cause color disorder and dull luster. The interface compatibility of certain phthalocyanine pigment and the inorganic composite material is better, the displayed color is brighter and brighter, and the possibility of better improving the mechanical property when being applied to the acrylic plate exists
It is noted that, in this document, relational terms such as first and second, and the like, if any, are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (10)
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| CN202111050051.1A CN113583473B (en) | 2021-09-08 | 2021-09-08 | Nano coated organic pigment and preparation method thereof |
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| CN202111050051.1A CN113583473B (en) | 2021-09-08 | 2021-09-08 | Nano coated organic pigment and preparation method thereof |
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| CN113583473B CN113583473B (en) | 2023-08-11 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118703058A (en) * | 2024-06-12 | 2024-09-27 | 广东工业大学 | A nano composite pigment based on allophane and preparation method thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004224949A (en) * | 2003-01-24 | 2004-08-12 | Toyo Ink Mfg Co Ltd | Method for producing composite pigment |
| CN101081941A (en) * | 2006-06-02 | 2007-12-05 | 富士胶片株式会社 | Organic nano particle and dispersive combination, photo-sensitive resin combination, trans-printing material, filter, liquid display device and CCD device |
| CN102391679A (en) * | 2011-09-01 | 2012-03-28 | 江苏双乐化工颜料有限公司 | Environment-friendly composite pigment and preparation method thereof |
| CN108676382A (en) * | 2018-06-22 | 2018-10-19 | 佛山陵朝新材料有限公司 | A kind of preparation method of the organic pigment powder of nanometer of cladding |
-
2021
- 2021-09-08 CN CN202111050051.1A patent/CN113583473B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004224949A (en) * | 2003-01-24 | 2004-08-12 | Toyo Ink Mfg Co Ltd | Method for producing composite pigment |
| CN101081941A (en) * | 2006-06-02 | 2007-12-05 | 富士胶片株式会社 | Organic nano particle and dispersive combination, photo-sensitive resin combination, trans-printing material, filter, liquid display device and CCD device |
| CN102391679A (en) * | 2011-09-01 | 2012-03-28 | 江苏双乐化工颜料有限公司 | Environment-friendly composite pigment and preparation method thereof |
| CN108676382A (en) * | 2018-06-22 | 2018-10-19 | 佛山陵朝新材料有限公司 | A kind of preparation method of the organic pigment powder of nanometer of cladding |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118703058A (en) * | 2024-06-12 | 2024-09-27 | 广东工业大学 | A nano composite pigment based on allophane and preparation method thereof |
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Denomination of invention: Nano coated organic pigments and their preparation methods Granted publication date: 20230811 Pledgee: Industrial and Commercial Bank of China Limited Langxi Branch Pledgor: ANHUI XINTAO PHOTOELECTRIC TECHNOLOGY CO.,LTD. Registration number: Y2024980016138 |
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Granted publication date: 20230811 Pledgee: Industrial and Commercial Bank of China Limited Langxi Branch Pledgor: ANHUI XINTAO PHOTOELECTRIC TECHNOLOGY CO.,LTD. Registration number: Y2024980016138 |