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A kind of method for preparing the epoxy resin coating of nano material doping

A technology of epoxy resin coating and nano-materials, applied in the direction of epoxy resin coating, coating, anti-corrosion coating, etc., can solve the problems of anti-corrosion ability and low hardness

Active Publication Date: 2017-04-12
HARBIN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The existing methods of improving epoxy coatings with nanomaterials only introduce a nanomaterial into the epoxy coating, which has low anti-corrosion ability and hardness.

Method used

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  • A kind of method for preparing the epoxy resin coating of nano material doping
  • A kind of method for preparing the epoxy resin coating of nano material doping
  • A kind of method for preparing the epoxy resin coating of nano material doping

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specific Embodiment approach 1

[0018] Embodiment 1: This embodiment is a method for preparing a nanomaterial-doped epoxy resin coating, which is specifically carried out in the following steps:

[0019] 1. Prepare the aqueous solution of curing agent and epoxy resin respectively: mix uniformly with deionized water I and epoxy resin to obtain an aqueous solution of epoxy resin; mix uniformly with deionized water II and curing agent to obtain an aqueous solution of curing agent; The mass ratio of deionized water I and epoxy resin is 1:(1~2); the mass ratio of described deionized water II and curing agent is 1:(1~2); described curing agent and epoxy resin The mass ratio of resin is 1:(1~3);

[0020] 2. Introduce a variety of nanomaterials: Add the anti-corrosion and corrosion inhibitor to the epoxy resin aqueous solution obtained in step 1 under the condition of the rotating speed of 1000r / min~1800r / min, Stir for 5min to 20min, then add nano-Fe 2 o 3 , stirring for 5min to 20min at a rotational speed of 100...

specific Embodiment approach 2

[0023] Embodiment 2: The difference between this embodiment and Embodiment 1 is that the curing agent described in Step 1 is a modified amine water-based curing agent, specifically ANQUAMINE 419, ANQUAMINE 401, ANQUAMINE 555 or ANQUAMINE 721. Others are the same as the first embodiment.

specific Embodiment approach 3

[0024] Embodiment 3: The difference between this embodiment and Embodiment 1 or 2 is that the epoxy resin in Step 1 is E-44, E-21 or E-50. Others are the same as those in Embodiment 1 or 2.

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Abstract

The invention relates to a method for preparing an epoxy resin coating, particularly a method for preparing a nano-material-doped epoxy resin coating. The method aims to solve the technical problems of low corrosion resistance and low hardness in the existing nano-material-based epoxy resin coating improvement process by introducing one nano material into the epoxy resin coating. The method comprises the following steps: 1. respectively preparing a curing agent and an epoxy resin water solution; 2. introducing multiple nano materials; 3. adding the curing agent; and 4. immersing a metal substrate, and drying. The method capable of enhancing the corrosion resistance of the epoxy resin coating more efficiently is obtained by utilizing the synergistic effects of different functional nano materials (nano Fe2O3 and carbon nano fibers).

Description

technical field [0001] The present invention relates to a method for preparing an epoxy resin coating. Background technique [0002] Epoxy resin coatings are widely used in the field of anti-corrosion coatings due to their outstanding adhesion and chemical resistance, good processability and electrical insulation, especially in the resistance to steel corrosion caused by chlorides. Epoxy coatings are used to protect steel and other metal substrates from corrosion in two main ways. First of all, the coating can act as a physical barrier to prevent the entry of harmful substances such as water, oxygen, and chloride. Secondly, the coating can concentrate substances such as corrosion inhibitors on the metal surface to resist the erosion of corrosive substances. [0003] The traditional epoxy resin coating has its own defects, one of which is poor wear resistance. The surface is easily damaged, causing local corrosion of steel bars, which brings great risks to concrete structur...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D163/00C09D7/12C09D5/08
Inventor 石鲜明张恒钟晶张岩
Owner HARBIN INST OF TECH