Cellulose/nano inorganic particle composite pigment, preparation method therefor and application of cellulose/nano inorganic particle composite pigment

A technology of nano-inorganic particles and composite pigments, which is applied in the field of dyeing pigments, can solve the problems of poor compatibility between large-sized inorganic particles and plastic substrates, decreased mechanical properties of plastic products, and poor tinting strength of inorganic pigments, so as to achieve durable and firm coloring. Ability, not easy to fall off, the effect of strong coloring ability

Active Publication Date: 2020-01-17
INST OF METAL RESEARCH - CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The poor coloring power of traditional commercial inorganic pigments is mainly due to the fact that the inorganic particles are usually in the micron scale, the particle size is large, and the specific surface area is small, so the coloring efficiency is low and the coloring ability is poor
At the same time, the compatibility of large-sized inorganic particles with the plastic matrix is ​​not good, and it also leads to a decrease in the mechanical properties of plastic products.

Method used

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  • Cellulose/nano inorganic particle composite pigment, preparation method therefor and application of cellulose/nano inorganic particle composite pigment
  • Cellulose/nano inorganic particle composite pigment, preparation method therefor and application of cellulose/nano inorganic particle composite pigment
  • Cellulose/nano inorganic particle composite pigment, preparation method therefor and application of cellulose/nano inorganic particle composite pigment

Examples

Experimental program
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Effect test

Embodiment 1

[0036] Add 0.4 mol of ferric chloride, 0.2 mol of ferrous sulfate and 16 times the mass of cellulose to water to form a suspension. Then add sodium hydroxide solution (1mol / L) to adjust the pH value of the solution to 9-10, and stir at 60°C for 2 hours. Filter and dry to obtain a red composite pigment cellulose / iron red.

[0037] 0.1 mol of ammonia, 0.3 mol of ferric chloride and 18 times the mass of cellulose are added to water to form a suspension. Stir at 95°C for 4 hours. Filter and dry to obtain the yellow composite pigment cellulose / iron yellow.

[0038] First add 0.3 mol potassium ferricyanide and cellulose into deionized water, add hydrochloric acid to adjust the pH to 1-2 to obtain material A; then dissolve 0.4 mol ferrous sulfate in deionized water, and add hydrochloric acid to adjust the pH of the solution The value is 1-2, and material B is obtained. The mass of cellulose in material A is 25 times the total mass of iron in material A and material B. Mix material A ...

Embodiment 2

[0044] Add 0.2 mol of iron sulfate, 0.1 mol of ferrous chloride, and 18 times the mass of cellulose to form a suspension in water. Then add sodium hydroxide solution (2mol / L) to adjust the pH to 11-12, and stir at 70°C for 3 hours. Filter and dry to obtain a red pigment-cellulose / iron red.

[0045] Add 0.2 mol of ammonia, 0.6 mol of iron sulfate and 20 times the mass of cellulose to the water. Stir at 80°C for 6 hours. Filter and dry to obtain yellow pigment-cellulose / iron yellow.

[0046] First add 0.6 mol potassium ferricyanide and cellulose to deionized water, then add sulfuric acid to adjust the pH to 1-2 to obtain material A; then dissolve 0.8 mol ferrous sulfate in deionized water, and add sulfuric acid to adjust the pH of the solution For 1-2, get material B. The mass of cellulose is 28 times the total mass of iron. Mix material A and material B, heat to 60°C and stir for 4 hours. Filter and dry to obtain a blue pigment-cellulose / Prussian blue.

[0047] After testing, t...

Embodiment 3

[0049] 0.4 mol of ferric nitrate, 0.2 mol of ferrous nitrate and 20 times the mass of cellulose are added to water to form a suspension. Then add potassium hydroxide solution (3mol / L) to adjust the pH to 9-10, and stir at 80°C for 1 hour. Filter and dry to obtain red cellulose / iron red.

[0050] Dissolve 0.1 mol ammonia, 0.3 mol ferric nitrate and 22 times the mass of cellulose into the water. Stir at 95°C for 3 hours. Filter and dry to obtain yellow cellulose / iron yellow.

[0051] First add 0.15 mol of sodium ferricyanide and cellulose to deionized water, then add hydrochloric acid to adjust the pH of the solution to 1-2 to obtain material A; then dissolve 0.2 mol of ferrous nitrate in deionized water, and add hydrochloric acid to adjust the solution The pH value is 1-2, and material B is obtained. The mass of cellulose is 30 times the total mass of iron. Mix material A and material B, heat to 80°C and stir for 2 hours. Filter and dry to obtain blue cellulose / Prussian blue. ...

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Abstract

The invention discloses a cellulose / nano inorganic particle composite pigment, a preparation method therefor and an application of the cellulose / nano inorganic particle composite pigment and belongs to the technical field of dyeing pigments. The composite pigment is prepared from cellulose and nano inorganic particles which grow on the surface and interior of the cellulose in situ, wherein the nano inorganic particles have the size of 20nm to 300nm, and the mass percent of the nano inorganic particles in the composite pigment is 8% to 10%. The nano inorganic particles comprise one of iron oxide red, iron oxide yellow and Berlin blue. The composite pigment is applied to dyeing of polymeric products such as plastics, resin or rubber. According to the cellulose / nano inorganic particle composite pigment, the preparation method therefor and the application of the cellulose / nano inorganic particle composite pigment, the cellulose serves as a raw material, the nano inorganic particles grow onthe surface and interior of the cellulose in situ by employing a specific process, and the obtained composite pigment has durable and firm coloring power; and when the composite pigment is applied tocoloring of polymeric matrixes, mechanical properties of the matrixes can be improved while the matrixes are dyed.

Description

Technical field [0001] The invention relates to the technical field of dyeing pigments, in particular to a cellulose / nano-inorganic particle composite pigment and a preparation method and application thereof. The prepared composite pigment can be used for the dyeing of polymer products such as plastics, resins, and rubbers. Background technique [0002] From electronic packaging, artificial skin to 3D printing, plastic, resin, rubber and other polymer products are playing an increasingly important role in the development of modern technology. With the continuous expansion of the scope of application, people have begun to demand the appearance of plastics while pursuing the functionality of plastics. For example, by changing the color of the plastic, it can be used in different occasions to make the logo clearer. [0003] Pigments used in plastics are generally divided into two categories: organic pigments and inorganic pigments. Commercially available organic pigments, such as ph...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08K9/12C08K3/22C08J3/20C08L101/00C08L21/00C09C1/22C09C1/24C09C3/10
CPCC08K9/12C08K3/22C08L101/00C08J3/20C09C1/24C09C1/22C09C3/10C08J2300/00C08J2321/00C08K2003/2272C08K2003/2275C08L21/00
Inventor 隋国鑫张阳马娜林国明刘冬艳孙兆松
Owner INST OF METAL RESEARCH - CHINESE ACAD OF SCI
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