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Preparation method of oil-resistant and static-conductive anti-corrosive coating added with modified graphene

An anti-corrosion coating and graphene technology, applied in anti-corrosion coatings, conductive coatings, polyether coatings, etc., can solve problems such as bulk accumulation, easy agglomeration, and unbalanced surface charge of nano-graphene powders

Inactive Publication Date: 2022-01-04
ANHUI XINDALU SPECIAL PAINT CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The surface charge of nano-graphene powder is unbalanced, and it is easy to agglomerate and even cause large accumulations

Method used

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  • Preparation method of oil-resistant and static-conductive anti-corrosive coating added with modified graphene
  • Preparation method of oil-resistant and static-conductive anti-corrosive coating added with modified graphene

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] First, in parts by weight, phenoxy resin 48, trioctyl trimellitate 16, epoxy soybean oil 6, stearyl benzoylmethane 1, OP-10 surfactant 2, phenoxy resin selection GabrielPKHH , Solvent: 73 parts of a mixed solvent of methyl ethyl ketone and glycol ether with a volume ratio of 1:1, the drying temperature of phenoxy resin is 90° C., and the drying time is 24 hours. Extruder, screw diameter, 40mm, gradual compression type, compression ratio, 3:1, speed, 20rpm, aspect ratio, 18:1, number of die holes, 2, furnace wire heating, pressure regulator temperature adjustment, Feeding port, water cooling, the head is equipped with a filter plate and a filter screen, the middle and front of the feed section are at 110°C, 190°C, 220°C, 200°C, and the feed area is water-cooled. The ingredients are weighed separately according to the prescription, and the phenoxy resin and other raw materials are fully stirred. Granulation: Extrude strands and cut into pellets. In the stirred tank equi...

Embodiment 2

[0028] Phenoxy resin slurry and fluorinated graphene oxide are the same as in Example 1. First, preparation of phenoxy resin emulsion: phenoxy resin emulsion is obtained by emulsifying and mixing 9% water-soluble silicone, 0.5% defoamer, 50% phenoxy resin slurry, and the rest is water, and the sum of each component is 100%; The specific emulsification and mixing method is: add water-soluble silicone, antifoaming agent and water into the emulsifier, under stirring, then add the preheated phenoxy resin slurry in a thin line, and fully stir to obtain phenoxy resin Resin emulsion; secondly, preparation of cross-linking solution: in parts by mass, mix 0.2 parts of sodium fluorosilicate, 2 parts of cross-linking agent, 14 parts of modified graphene, and 84 parts of water, heat up to 65°C and stir evenly Disperse for 20 minutes to obtain the cross-linking liquid; then, mixing before the use of the coating: according to the mass ratio, the phenoxy resin emulsion obtained in step 1: cr...

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Abstract

The invention discloses a preparation method of an oil-resistant and static-conductive anti-corrosive coating added with modified graphene, and belongs to the technical field of anti-corrosive coatings. Modified graphene is added into water-emulsion phenoxy resin, so that the water-emulsion phenoxy resin has good dispersity and can fill pores in a polymer matrix, permeation of corrosion-related media through the coating is obviously inhibited, the oil resistance and corrosion resistance of the coating are greatly improved, the oxygen permeability is reduced, galvanic corrosion of graphene is effectively inhibited, and good dispersion in a phenoxy resin matrix is realized. Low-conductivity and flaky fluorinated graphene oxide with a doping degree of F is added into the phenoxy resin coating, so that the corrosion resistance of the coating is improved. Fluorinated graphene oxide not only has impermeability, but also has constant electrical insulating property and a long-term anti-corrosion effect, and fluorinated graphene oxide nanosheets which are difficult to permeate, have electrical insulating property and are well dispersed enhance the physical barrier of the coating and prolong the anti-corrosion time.

Description

technical field [0001] The invention belongs to the technical field of anti-corrosion coatings, in particular to a preparation method of an oil-resistant and static-conductive anti-corrosion coating added with modified graphene. Background technique [0002] With the rapid development of the petroleum industry and the launch of strategic petroleum reserves, oil-resistant, conductive, and anti-static corrosion has received increasing attention. For example, if the electrostatic hazard of base materials such as oil tanks is not eliminated in time, it is easy to cause explosion hazards. Therefore, while considering the anti-corrosion protection of oil tanks, the coating must have excellent antistatic properties. In the past, people used graphite and other black oil-resistant and static-conductive coatings, which were inconvenient to find hidden dangers during maintenance, and had the disadvantage of exuding graphite and other oil products. On the other hand, in the selection o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D171/10C09D5/08C09D5/24C09D5/02
CPCC09D171/10C09D5/08C09D5/24C09D5/022C09D5/025C08K9/04C08K3/042
Inventor 王保军拾振洪李海洋金传亮回留柱王家振
Owner ANHUI XINDALU SPECIAL PAINT CO LTD
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