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A low-resistivity solvent-free epoxy carbon-based electrostatic conductive coating

An epoxy-carbon conductive and low-resistivity technology, applied in conductive coatings, epoxy resin coatings, coatings, etc., to achieve excellent mechanical damage resistance, easy construction, good bonding force and flexibility

Active Publication Date: 2017-05-31
XIAMEN SUNRUI SHIP COATING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0008] Although the above reports use carbon nanotubes as the conductive material, the resistance of the coating is still 10 6 above

Method used

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  • A low-resistivity solvent-free epoxy carbon-based electrostatic conductive coating
  • A low-resistivity solvent-free epoxy carbon-based electrostatic conductive coating

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Embodiment Construction

[0033] The present invention is a solvent-free epoxy carbon-based electrostatic conductive coating with low resistivity. The key point of the present invention is the preparation of modified carbon-based conductive fillers. The coating film formed by curing the solvent epoxy carbon-based electrostatic conductive coating has excellent electrostatic conductivity, which meets the needs of various industries for electrostatic conductive coatings.

[0034] The low-resistivity solvent-free epoxy carbon-based static conductive coating of the present invention is composed of component A and component B, wherein component A contains epoxy resin, epoxy reactive diluent, defoamer, coupling agent, Wetting and dispersing agent, modified carbon-based conductive filler, filler and polyamide wax, component B is cashew nut shell oil modified phenalkamine curing agent. Epoxy resin is either E51 or NPEF-170. It is required that the molecular weight of E51 or NPEF-170 is between 200 and 500, the ep...

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Abstract

The invention discloses a low-resistivity solvent-free epoxy-carbon static conductive coating. The coating comprises an ingredient A and an ingredient B. The ingredient A comprises epoxy resin, an epoxy active diluent, an antifoaming agent, a coupling agent, a wetting dispersant, a modified carbon conductive filler, a filler and polyamide wax. The ingredient B is a cashew nut shell oil-modified phenolic aldehyde amine curing agent. In use, the ingredient A and the ingredient B are mixed according to a weight ratio of 100: [10-40] to form the low-resistivity solvent-free epoxy-carbon static conductive coating. The modified carbon conductive filler is prepared from a carbon conductive filler and an aqueous treatment liquid according to a certain ratio. The carbon conductive filler contains acetylene black, conductive graphite powder and carbon nanotubes. The aqueous treatment liquid contains water, sodium dodecyl benzene sulfonate, BYK-3550 and EFKA-4310. The coating is cured to form a film with excellent static conductive performances and satisfies static conductive coating requirements in multiple industries.

Description

technical field [0001] The invention belongs to the technical field of coatings, in particular to a low-resistivity solvent-free epoxy carbon-based static conductive coating. Background technique [0002] Static conductive coatings are mainly used to eliminate disasters caused by electrostatic discharge or various production obstacles caused by electrostatic attraction. In the national standard GB / T 12158-2006 "General Guidelines for Preventing Electrostatic Accidents", the volume resistance is less than or equal to 10 6 Ω m and surface resistance equal to or less than 10 7 A solid surface of Ω is defined as an electrostatic conductor, with volume resistance greater than 10 6 Ω·m, less than 10 10 The material surface and surface resistance of Ω·m are greater than 10 7 Ω, less than 10 11 Ω is defined as an electrostatic subconductor. [0003] According to different industries, the specific indicators of conductive coatings are different. For example, the industry standa...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D163/00C09D5/24
Inventor 张贤慧梅奕方大庆李陈郭杨名亮
Owner XIAMEN SUNRUI SHIP COATING
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