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Corrosion-resistant electromagnetic screen coating and preparation thereof

An electromagnetic shielding coating and corrosion-resistant technology, which is applied in the fields of magnetic field/electric field shielding, epoxy resin coating, coating, etc., can solve the problems that cannot meet the corrosion resistance of metal products well, and achieve easy promotion and excellent corrosion resistance Performance, the effect of excellent anti-corrosion performance

Active Publication Date: 2008-10-01
MARINE CHEM RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The invention provides a corrosion-resistant electromagnetic shielding coating and a preparation method. The main technical problem to be solved is that it can meet the electromagnetic shielding performance of metal products, but cannot meet the requirements of metal products. Contradictions in corrosion resistance

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0052] The technological process and process parameters of the present embodiment are as follows:

[0053] ingredients

[0054] Film-forming resin 35.4%

[0055] Curing agent 13.2%

[0056] Conductive filler 43.4%

[0057] Corrosion inhibitor 5.5%

[0058] Coupling agent 0.5%

[0059] Anti-settling agent 1.4%

[0060] Antioxidant 0.6%

[0061] 2. Preparation of anti-sedimentation agent solution

[0062] The anti-sedimentation agent selects organic bentonite, and the solvent selects xylene, and the proportioning of organic bentonite and xylene is: organic bentonite:xylene=7.8%:92.2%. Mix them together at room temperature and then stir well.

[0063] 3. Preparation of coupling agent solution

[0064] The coupling agent is a titanate coupling agent, the solvent is a mixed solvent of n-butanol and xylene, and the ratio of the coupling agent to the solvent is: coupling agent:solvent is 12.5%:87.5%. Mix them together at room temperature and then stir well.

[0065] 4. Prepa...

Embodiment 2

[0076] The technological process and process parameters of the present embodiment are as follows:

[0077] 1. Ingredients

[0078] Film-forming resin 39.6%

[0079] Curing agent 5.5%

[0080] Conductive filler 46.9%

[0081] Corrosion inhibitor 4.5%

[0082] Coupling agent 1.0%

[0083] Anti-settling agent 2.2%

[0084] Antioxidant 0.3%

[0085] 2. Preparation of anti-sedimentation agent solution

[0086] The anti-sedimentation agent selects organic bentonite, and the solvent selects xylene, and the proportioning of organic bentonite and xylene is: organic bentonite:xylene=7.8%:92.2%. Mix them together at room temperature and then stir well.

[0087] 3. Preparation of coupling agent solution

[0088] The coupling agent is a titanate coupling agent, the solvent is a mixed solvent of n-butanol and xylene, and the ratio of the coupling agent to the solvent is: coupling agent:solvent=12.5%:87.5%. Mix them together at room temperature and then stir well.

[0089] 4. Prep...

Embodiment 3

[0100] 1. Ingredients

[0101] Film-forming resin 28.75%

[0102] Curing agent 10.7%

[0103] Conductive filler 47.55%

[0104] Corrosion inhibitor 9.7%

[0105] Coupling agent 1.3%

[0106] Anti-settling agent 1.4%

[0107] Antioxidant 0.6%

[0108] 2. Preparation of anti-sedimentation agent solution

[0109] The anti-sedimentation agent selects organic bentonite, and the solvent selects xylene and n-butanol mixed solvent, and the proportioning of organic bentonite and mixed solvent is: organic bentonite: mixed solvent=7.8%: 92.2%. Mix them together at room temperature and then stir well.

[0110] 3. Preparation of coupling agent solution

[0111] The coupling agent is a silane coupling agent, the solvent is a mixed solvent of n-butanol and xylene, and the ratio of the coupling agent to the solvent is: coupling agent:solvent=23.7%:76.3%. Mix them together at room temperature and then stir well.

[0112] 4. Preparation of anti-corrosion agent solution

[0113] The a...

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Abstract

The present invention provides a corrosion electromagnetic shielding coating and its preparing method, the corrosion electromagnetic shielding coating includes a solute part and a solvent part, the weight percentage of the components of the solute part is : film forming resin 25.4-39.6%, curing agent 3.5-14.8%, conductive filler 37.5-57.5%, anticorrosive agent 3.5-10.5%, coupling agent 0.5-1.5%, anti-sedimentation agent 0.8-2.2%, antioxidant 0.1-1.0%.The coating of the invention has excellent corrosion resistance and electromagnetic shielding effectiveness.

Description

technical field [0001] The invention relates to the field of electromagnetic shielding coatings, in particular to a novel corrosion-resistant electromagnetic shielding coating in which an improved film-forming resin is added with a novel anti-corrosion agent. Background technique [0002] At present, with the rapid development of the electronic industry and information industry, communication equipment and various electronic products are becoming more and more popular. At the same time, the development of electronic technology has made modern military equipment more and more electronic, bringing unprecedented challenges to the survivability and combat effectiveness of modern military. improvement. However, electronic and electrical equipment also produces electromagnetic radiation, which brings radiation pollution. At the same time, it is extremely susceptible to external electromagnetic interference, which seriously interferes and affects the operation of electronic and ele...

Claims

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Application Information

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IPC IPC(8): C09D163/00C09D5/00H05K9/00C09D161/06
Inventor 桂泰江肖玲李旭朝陈正涛张程远
Owner MARINE CHEM RES INST
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