Antistatic flame-retardant powder coating for coal mine pipelines, manufacturing and coating methods thereof

A technology of flame retardant powder and powder coating, which is applied to fire retardant coatings, epoxy resin coatings, and devices for coating liquids on surfaces, etc. question

Inactive Publication Date: 2014-09-24
SHANGHAI SHIPBUILDING TECH RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The object of the present invention is to provide an improved antistatic and flame retardant powder coating for coal mine pipelines and its production and coating method, which can overcome the poor flame retardant and antistatic performance of the coating in the prior art, and it is difficult to meet the specific requirements of the coal mine underground. Environmental requirements, at the same time, the adhesion between the coating and the substrate after powder coating is poor, the production method is complicated, and the cost is too high.

Method used

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  • Antistatic flame-retardant powder coating for coal mine pipelines, manufacturing and coating methods thereof

Examples

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Comparison scheme
Effect test

Embodiment 1

[0018] Example of antistatic and flame retardant powder coatings for coal mine pipelines: 55 parts of bisphenol A epoxy resin, 4.5 parts of sebacic acid dihydrazide, 35 parts of filler, 1.5 parts of leveling agent, 0.5 parts of accelerator, and 0.5 parts of degassing agent parts, 3 parts of other additives. The curing condition of this powder coating is 180°C / 30min. Among them, the filler is made of conductive barium sulfate, conductive mica powder, glass microspheres, ceramic microspheres and other antistatic and flame-resistant components; the leveling agent is 503; the accelerator is FC31; the degasser is benzoin; It is a coupling agent, using titanate coupling agent.

Embodiment 2

[0020] Formula example of antistatic and flame retardant powder coating for coal mine pipeline: 50 parts of bisphenol A epoxy resin, 10 parts of phenolic hydroxyl resin, 30 parts of filler, 2.0 parts of leveling agent, 1.0 part of accelerator, 0.5 part of degasser, others 6.5 parts of auxiliary agent. The curing condition of this powder coating is 200°C / 6-10min. Among them, the filler is made of conductive graphite, conductive carbon black, wollastonite powder, quartz powder and other antistatic and flame-resistant components; the leveling agent is 503; the accelerator is 803A; the degassing agent is benzoin; Focus on accelerators.

Embodiment 3

[0022] Antistatic flame retardant powder coating formulation example for coal mine pipeline: 35 parts of bisphenol A epoxy resin, 15 parts of novolak epoxy resin, 10 parts of phenolic hydroxyl resin, 30 parts of filler, 5.0 parts of leveling agent, 1.0 part of accelerator, 1.0 parts of degassing agent, 3.0 parts of other additives. The curing condition of this powder coating is 190°C / 10-20min. Among them, the filler is made of metal powder, conductive carbon black, MCA, red phosphorus and other antistatic and flame-resistant components; the leveling agent is 503; the accelerator is 2-methylimidazole; the degassing agent is benzoin; It is a coupling agent, using silane coupling agent.

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Abstract

The invention relates to an antistatic flame-retardant powder coating for coal mine pipelines, which is characterized by comprising the following components by mass: 30-60% of thermosetting resin, 4.5-30% of curing agents, 30-40% of filling materials, and 2-12% of auxiliary agents, wherein the sum of the percents of the components is 100%. When the product of the invention and electrostatic coating are adopted, a film thickness of up to 300-800 um can be reached by coating once; performance requirements can be satisfied after baking curing once; and the coating labor production efficiency is high. Additionally, powder coatings which are not coated during coating can be recycled, which realizes a coating utilization rate of more than 98%. Steel pipes coated with the powder coating have excellent antistatic flame-retardant performance, and very good adhesive force is provided between the coating and a coated substrate.

Description

technical field [0001] The invention relates to the technical field of thermosetting powder coatings, in particular to an antistatic and flame-resistant powder coating for coal mine pipelines, a manufacturing method thereof, and a high-voltage electrostatic coating method. Background technique [0002] As the main energy source for economic development, coal is known as black gold. The development and mining of coal provide a huge driving force for economic development and social progress. In early coal mining, there was no gas extraction device or ventilation device, and only natural ventilation was relied on. With the deepening of mining, natural ventilation can no longer meet the needs of safe production, and then forced ventilation devices appear. In order to avoid dust storms caused by excessive dust concentration during mining and transportation, water supply and drainage devices are used underground in coal mines. pipeline. [0003] In the past, coal mines generally...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D163/02C09D163/04C09D5/46C09D5/18C09D7/12B05D3/02B05D3/10
Inventor 梁琳俐由佳陆琼兰玲甘露
Owner SHANGHAI SHIPBUILDING TECH RES INST
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