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Graphene modification method of phthalocyanine blue pigment

A technology of phthalocyanine blue and graphene, which is applied in the chemical field, can solve the problems of large energy consumption, increased intermolecular conductivity, and great corrosion of environmental pollution, and achieve the effects of improving coloring strength, improving application performance, and reducing molecular aggregation

Active Publication Date: 2020-06-26
DEZHOU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, a large amount of three wastes will be produced in the process of acid-soluble purification, causing great environmental pollution and strong corrosiveness.
And the grinding process also consumes a lot of energy. Surfactant modification will leave a certain amount of impurities, and the conductivity between molecules will increase due to the doping effect.

Method used

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  • Graphene modification method of phthalocyanine blue pigment
  • Graphene modification method of phthalocyanine blue pigment
  • Graphene modification method of phthalocyanine blue pigment

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] Weigh 0.06g of single-layer graphene, add to a beaker, add 20ml of acetone, add to a three-necked flask after ultrasonic dispersion for 30min, add 2.0g of Phthalocyanine Blue B, add 20ml of acetone, stir for 5h at 50℃, filter, wash with water, 60℃ The modified phthalocyanine blue B pigment is obtained by drying.

Embodiment 2

[0040] The experimental method is the same as in Example 1, with only 0.06 g of graphene oxide added.

Embodiment 3

[0042] Weigh 0.02g of single-layer graphene into a beaker, add 20ml of methanol, ultrasonically disperse for 2h, add to a three-necked flask, add 2.0g of Phthalocyanine Blue BGS, add 30ml of methanol, stir for 3h at 40°C, filter, wash with water, 60°C The modified phthalocyanine blue BGS pigment is obtained by drying.

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PUM

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Abstract

The invention provides a graphene modification method of a phthalocyanine blue pigment. The graphene modification method specifically comprises modifying the phthalocyanine blue pigment by using graphene through a non-covalent bond or a covalent bond-non-covalent bond acting force. According to the modification method, the coloring capacity of phthalocyanine blue is improved, the specific surfacearea of the pigment is increased, molecular aggregation among organic pigment compounds can be reduced, and the particle size distribution of obtained pigment particles is more centralized.

Description

Technical field [0001] The invention belongs to the field of chemistry, and particularly relates to a graphene modification method of phthalocyanine blue pigment. Background technique [0002] Phthalocyanine blue is an important organic pigment and is widely used in the coloring process of inks, coatings, plastics and other products. However, the actual application and storage of phthalocyanine blue are prone to "crystallization" and "flocculation" problems, which will lead to changes in the coloring of the pigment, a significant decrease in the coloring power, and an increase in the viscosity of the pigment dispersion system during storage, which directly affects the coating and ink Application performance in, plastics, etc. Therefore, phthalocyanine blue must be modified to stabilize it. [0003] At present, the methods for modifying phthalocyanine organic pigments and improving their application performance often use acid solution, grinding treatment (US 5776237A, US 5942028A,...

Claims

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Application Information

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IPC IPC(8): C09B67/00C09B47/067
CPCC09B47/0676C09B67/0032C09B68/443
Inventor 吕东军
Owner DEZHOU UNIV
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