Preparation method of resinified graphene anticorrosive paint based on high-temperature mechanochemistry

A mechanochemical and anti-corrosion coating technology, applied in anti-corrosion coatings, epoxy resin coatings, chemical instruments and methods, etc., can solve the problem that graphene anti-corrosion coatings cannot achieve the use effect and protective ability, and the compatibility of oily organic coatings is poor. , graphene fillers are easy to agglomerate, etc., to achieve good coating anti-corrosion effect and compactness, good anti-corrosion ability, and the effect of reducing hole defects

Pending Publication Date: 2020-10-16
NORTHEASTERN UNIV
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Problems solved by technology

However, the high surface energy makes graphene fillers easy to agglomerate and has poor compatibility with oily organic coatings. Graphene anti-corrosion coatings often fail to achieve the expected use effect and protection ability
[0003] At present, most of the research on the modification of graphene and graphene oxi

Method used

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  • Preparation method of resinified graphene anticorrosive paint based on high-temperature mechanochemistry
  • Preparation method of resinified graphene anticorrosive paint based on high-temperature mechanochemistry
  • Preparation method of resinified graphene anticorrosive paint based on high-temperature mechanochemistry

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Embodiment 1

[0024] In the present embodiment, the specific steps of the preparation method of the resinized graphene anticorrosion coating based on high temperature mechanochemistry are as follows:

[0025] (1) get graphene or graphene oxide and add phenylenediamine in described graphene or graphene oxide aqueous solution and carry out modification pretreatment;

[0026] (2) Get pretreated graphene or graphene oxide in step (1) and add organic resin and solvent, adopt high-temperature mechanochemical method to process, gained solution obtains resinized graphite after centrifugation, suction filtration, drying alkene;

[0027] (3) Resinized graphene is mixed with organic resin, diluent and additive in step (2), and A component is obtained after mechanical stirring;

[0028] (4) The A component and the B component curing agent are evenly mixed to obtain the resinized graphene anticorrosion coating. In step (1), the phenylenediamine can be one or more of its three isomers—n-phenylenediamin...

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Abstract

The invention discloses a preparation method of resinified graphene anticorrosive paint based on high-temperature mechanochemistry. The preparation method comprises the following steps: taking graphene or graphene oxide, and adding phenylenediamine into a graphene or graphene oxide aqueous solution for modification pretreatment; adding an organic resin and a solvent, adopting high-temperature mechanochemical method for treatment, and subjecting an obtained solution to centrifugation, suction filtration and drying to obtain a resinified graphene; mixing the resinified graphene with an organic resin, a diluent and an additive, and mechanically stirring to obtain a component A; and uniformly mixing the component A with a component B curing agent to obtain the resinified graphene anticorrosivepaint. According to the invention, the chemical reaction of graphene and the organic resin can be realized through a high-temperature mechanochemical technology; the resinified graphene can be uniformly dispersed in the organic resin, the bonding strength with a film-forming substance is higher, hole defects in a coating are reduced, and the barrier property and mechanical properties of the coating are improved, so that better corrosion resistance is achieved.

Description

technical field [0001] The invention relates to the field of organic anticorrosion coatings, in particular to a method for preparing resinized graphene anticorrosion coatings based on high-temperature mechanochemistry. Background technique [0002] Graphene has become a new choice for shielding fillers in anti-corrosion coatings due to its high specific surface area, excellent permeability resistance, and good thermal stability, which has attracted extensive attention from researchers in the anti-corrosion field. However, the high surface energy makes graphene fillers easy to agglomerate and has poor compatibility with oily organic coatings. Graphene anti-corrosion coatings often fail to achieve the expected use effect and protection ability. [0003] At present, most of the research on the modification of graphene and graphene oxide adopts the chemical grafting method, and graphene and organic substances are connected by covalent or non-covalent bonds through some kind of "...

Claims

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Application Information

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IPC IPC(8): C09D163/02C09D7/62C09D5/08C09C1/44C09C3/08C09C3/10
CPCC09C1/44C09C3/006C09C3/08C09C3/10C09D5/08C09D163/00C09D7/62C08K9/04C08K9/00C08K9/08C08K3/042
Inventor 孟凡帝栾浩刘莉郑宏鹏崔宇王福会
Owner NORTHEASTERN UNIV
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