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Bottom-layer anticorrosive paint, preparation method and application thereof

An anti-corrosion coating and bottom layer technology, applied in anti-corrosion coatings, epoxy resin coatings, coatings, etc., can solve the problems of low cathodic disbondment resistance and low heat release, and can extend the storage period, increase heat release, and resist penetration. good effect

Active Publication Date: 2017-06-06
NIPPON PAINT TIANJIN +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] Aiming at the defects of low exothermic heat and low cathodic peeling resistance in the prior art, the first object of the present invention is to provide a bottom anticorrosion coating with high reactivity, high coating density and good Anti-penetration ability and other advantages

Method used

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  • Bottom-layer anticorrosive paint, preparation method and application thereof
  • Bottom-layer anticorrosive paint, preparation method and application thereof
  • Bottom-layer anticorrosive paint, preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] A kind of bottom anticorrosion paint, comprises following components, by weight parts:

[0039]

[0040] The epoxy resin is the epoxy resin E-12 of Shengli Oilfield Fangyuan Anticorrosion Material Co., Ltd.

[0041] The heterocyclic phenolic curing agent is GP-04 (melting range: 126°C-140°C) from Zibo Yizhou Paint Filler Technology Co., Ltd.

[0042] Preparation method: First, accurately weigh the raw materials according to the composition of the formula components, and mix them evenly in the premixing tank through high-speed rotation (premixing time is 5-10 minutes), and then put the evenly mixed raw materials into the twin-screw extruder at a constant speed , melted and extruded at 95-110°C, passed through a cooling roll, pressed into a tablet, cooled, and then the tablet was crushed (including coarse crushing and finely crushed), ground, sieved, and finally obtained a uniform particle size ( 40-80 μm) powder coating, namely obtain described primer anticorrosion c...

Embodiment 2

[0048] A kind of bottom anticorrosion paint, comprises following components, by weight parts:

[0049]

[0050] The epoxy resin is GESR904 (epoxy equivalent of 780-850g / eq, viscosity of 45-80P / 150°C, softening point of 92-102°C) produced by Hongchang Electronic Materials Co., Ltd.

[0051] The heterocyclic phenolic curing agent is GP-04 (melting range: 126°C-140°C) from Zibo Yizhou Paint Filler Technology Co., Ltd.

[0052] Preparation method: First, accurately weigh the raw materials according to the composition of the formula components, and mix them evenly in the premixing tank through high-speed rotation (premixing time is 5-10 minutes), and then put the evenly mixed raw materials into the twin-screw extruder at a constant speed , melted and extruded at 95-110°C, passed through a cooling roll, pressed into a tablet, cooled, and then the tablet was crushed (including coarse crushing and finely crushed), ground, sieved, and finally obtained a uniform particle size ( 40-8...

Embodiment 3

[0055] A kind of bottom anticorrosion paint, comprises following components, by weight parts:

[0056]

[0057]

[0058] The epoxy resin is epoxy 014F (epoxy equivalent of 730-850g / eq, softening point of 93-105° C.) produced by Langfang Nuoerxin Chemical Co., Ltd.

[0059] The heterocyclic phenolic curing agent is GP-04 (melting range: 126°C-140°C) from Zibo Yizhou Paint Filler Technology Co., Ltd.

[0060] Preparation method: First, accurately weigh the raw materials according to the composition of the formula components, and mix them evenly in the premixing tank through high-speed rotation (premixing time is 5-10 minutes), and then put the evenly mixed raw materials into the twin-screw extruder at a constant speed , melted and extruded at 95-110°C, passed through a cooling roll, pressed into a tablet, cooled, and then the tablet was crushed (including coarse crushing and finely crushed), ground, sieved, and finally obtained a uniform particle size ( 40-80 μm) powder c...

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Abstract

The invention discloses bottom-layer anticorrosive paint which is prepared from the following components in parts by weight: 50 to 60 parts of epoxy resin, 1 to 1.2 parts of curing agent, 1.0 to 2.0 parts of additional agent, 1 to 10 parts of pigment and 25 to 45 parts of filler. The invention further discloses a preparation method of the bottom-layer anticorrosive paint. The preparation method comprises the following steps of evenly mixing the 50 to 60 parts of epoxy resin, the 1 to 1.2 parts of curing agent, the 1.0 to 2.0 parts of additional agent, the 1 to 10 parts of pigment and the 25 to 45 parts of filler, fusing, cooling, tableting, smashing, grinding and screening to obtain the bottom-layer anticorrosive paint. The invention further discloses application of the bottom-layer anticorrosive paint on anticorrosive pipeline coatings. The bottom-layer anticorrosive paint disclosed by the invention has the advantages of high reaction activity, high formed coating compactness, good infiltration resistance and the like.

Description

technical field [0001] The invention belongs to the technical field of coatings, and in particular relates to a bottom anticorrosion coating, a preparation method and an application thereof. Background technique [0002] Anti-corrosion pipelines refer to steel pipelines that have been processed by anti-corrosion technology, which can effectively prevent or slow down chemical or electrochemical reactions and corrosion during transportation and use. According to different anti-corrosion methods, it is divided into inner wall anti-corrosion and outer wall anti-corrosion. [0003] There are three main types of anti-corrosion pipelines on the outer wall used in water, oil, gas and other fields: three-layer polyethylene anti-corrosion coating anti-corrosion pipeline (abbreviation: 3PE anti-corrosion pipeline), single-layer fusion-bonded epoxy powder anti-corrosion pipeline (abbreviation: single-layer anti-corrosion pipeline) Layer FBE anti-corrosion pipeline) and double-layer fus...

Claims

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Application Information

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IPC IPC(8): C09D163/00C09D5/08C09D7/12
Inventor 解晓雷苏兰广张振兴李景红刘连贵
Owner NIPPON PAINT TIANJIN
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