Graphene modification method of phthalocyanine blue pigment
A technology of graphene modification and phthalocyanine blue, which is applied in the chemical field, can solve the problems of high corrosion of environmental pollution, increased intermolecular conductivity, and large energy consumption.
Active Publication Date: 2021-07-23
DEZHOU UNIV
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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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Embodiment 1
[0038] 0.06 g of single layer graphene, adding a beaker, adding acetone 20 ml, adding a three-bit bottle after 30 min, adding phthalocyanine blue B, then adding acetone 20 mL, 50 ° C for 5 h, filtration, water washing, 60 ° C Drying to give a modified phthalocyanine blue B pigment.
Embodiment 3
[0042] In the addition of 0.02 g of single layer graphene, adding a beaker, adding methanol, adding three bottles, adding a three-bit bottle, adding phthalocyanine Blue BGS 2.0 g, then adding methanol 30ml, stirring for 3 h, filtration, water, 60 ° C Drying to give a modified phthalocyanine blue BGS pigment.
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The invention provides a graphene modification method of a phthalocyanine blue pigment, which specifically includes a method for modifying the phthalocyanine blue pigment by using graphene through a non-covalent bond or a covalent bond-non-covalent bond force. The modification method of the invention improves the coloring ability of the phthalocyanine blue, increases the specific surface area of the pigment, reduces molecular aggregation among organic pigment compounds, and obtains more concentrated particle size distribution of the pigment particles.
Description
Technical field [0001] The present invention belongs to the chemical field, and more particularly to a graphene modification method of a phthalocyanine blue pigment. Background technique [0002] Phthalocyanine is an important organic pigment, which is widely used in the coloring process of inks, coatings, plastics and other products. However, "crystallization", "flocculation", etc., which can cause "crystallization" and "flocculation" in the actual application and storage of phthalocyanine, which can cause change in pigment coloration, sharp decrease in color force, and increased viscosity of pigment dispersion during storage, directly affecting the coating, ink , Application performance in plastics, etc.. Therefore, phthalocyanine must be modified to stabilize it. [0003] In a method of modifying phthalocyanine-like organic pigments and increasing its application performance, acid-soluble, polishing treatment (US 5776237A, US 5942028A, EP 8088507A), a pigment derivative (US 40...
Claims
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IPC IPC(8): C09B67/00C09B47/067
CPCC09B47/0676C09B67/0032C09B68/443
Inventor吕东军
OwnerDEZHOU UNIV