Heavy anti-corrosion clinkery epoxy powder coating

A fusion-bonded epoxy powder, heavy-duty anti-corrosion technology, applied in powder coatings, anti-corrosion coatings, epoxy resin coatings, etc., can solve the problems of low cross-linking degree, insignificant toughening effect, poor leveling, etc., and achieve cross-linking High strength, good anti-corrosion effect, and enhanced leveling effect

Inactive Publication Date: 2010-10-13
NINGBO INST OF TECH ZHEJIANG UNIV ZHEJIANG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The existing FBE coating production generally adopts bisphenol A epoxy resin or epoxy dicyandiamide powder coating which is solid at room temperature, which has the disadvantages of low crosslinking degree, poor leveling, etc. The contradiction between impact performance and flexibility, so although some work has been done on the toughening of fusion bonded epoxy powder coatings, it is usually at the expense of material strength, modulus and heat resistance, making its physical, mechanical The thermal performance is greatly affected, even if the above problems are taken into account, the toughening effect is not obvious

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0013] Add 15 g of active silicon micropowder, 7.5 g of mica powder, 1 g of fumed white carbon black, and 40 g of precipitated barium sulfate into a high-speed mixer and mix for 30 minutes to obtain a uniformly mixed mixture.

[0014] Then add novolac epoxy resin 60g, epoxy resin E-12 40g, curing agent JECP-02B30g, leveling agent GLP5884g, and the above mixture is added to a high-speed mixer and mixed for 2 minutes; the premixed material is added to the extruder to melt and extrude Out, the temperature of the feeding section is 90°C, the temperature of the melting section is 100°C, the mixing section is 110°C, the discharge section is 100°C, the speed of the extruder is controlled at 80rpm, and the tablet is pressed, cooled and crushed on the air-cooled crawler-type tablet crusher. The product is obtained by crushing, grading, cyclone separator separation and sieving in the crushing mill, and the superfine powder is removed by cyclone separation. The product particle size contr...

Embodiment 2

[0016] Add 75g of novolak epoxy resin, epoxy resin E-1225g, curing agent JECP-02B 20g, leveling agent GLP5885g, and the others are the same as in Example 1.

Embodiment 3

[0018] Add 25g of novolac epoxy resin, 75g of epoxy resin E-12, 25g of curing agent JECP-02B, 3g of leveling agent GLP588, and the others are the same as in Example 1.

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PUM

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Abstract

The invention relates to a heavy anti-corrosion clinkery epoxy powder coating, which comprises the following components in part by weight: 100 parts of epoxy resin, 20 to 30 parts of curing agent, 2 to 5 parts of flatting agent and 40 to 70 parts of filler. The heavy anti-corrosion clinkery epoxy powder coating is mainly applied in the field of pipeline corrosion prevention and has the advantages of high toughness, high impact resistance, simple preparation process and suitability for mass production.

Description

technical field [0001] The invention relates to the technical field of fusion-bonded epoxy powder coatings for pipeline anticorrosion, in particular to a heavy-duty anti-corrosion fusion-bonded epoxy powder coating. Background technique [0002] Heavy-duty anti-corrosion fusion bonded epoxy powder coating, also known as fusion bonded epoxy powder coating (FBE), is a solid coating that is transported and dispersed with air as the carrier. It is applied to the surface of the preheated steel workpiece and melted , leveling, curing to form a uniform coating, the English name is FBE. It is mainly used for pipeline anti-corrosion. It is a new type of anti-corrosion coating that does not contain solvents and is formed by powder fusion. During the coating process of pipelines, there is no VOC pollution, fast curing speed and long service life. At that time, due to the harsh conditions and complex environment of onshore oil and gas pipeline construction, there were high requirements...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D163/00C09D163/02C09D163/04C09D5/03C09D5/08
Inventor 李文静张艳辉薛彩琴沈国标
Owner NINGBO INST OF TECH ZHEJIANG UNIV ZHEJIANG
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