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Anti-drag wear-resistant solvent-free coating with low-viscosity for pipeline

A solvent-free coating and low-viscosity technology, applied in anti-corrosion coatings, epoxy resin coatings, coatings, etc., can solve the problems of poor storage stability of operational coatings, high VOC content, inconvenient construction, etc., to eliminate physical injuries , Eliminate coating pinholes, reduce the effect of environmental impact

Active Publication Date: 2012-04-18
SHANGHAI HILONG SHINE NEW MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantages of solvent-based coatings are: high VOC content, sensitivity to moisture in the environment, poor construction operability and paint storage stability, and easy foaming of the paint film. More importantly, solvent-based coatings are usually not environmentally friendly.
However, solvent-free coatings also have disadvantages. The more prominent one is that the coating has a high viscosity, which is not very convenient for construction, and the coating needs to be heated when spraying; due to the high viscosity, it is difficult to obtain a thinner coating, which is often suitable for thick coating.

Method used

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  • Anti-drag wear-resistant solvent-free coating with low-viscosity for pipeline

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0057] A drag-reducing and wear-resistant solvent-free coating for low-viscosity pipelines, comprising components A and B, and the mass percentages of the raw materials of components A and B are respectively:

[0058] Component A:

[0059] Epoxy resin 35.00%, using products from Hongchang Electronic Materials Co., Ltd. or Sinopec Yueyang Petrochemical Plant;

[0060] Active diluent 21.10%; using Cardolite products;

[0061] Leveling agent 0.33%, using the product of German BYK Chemical Auxiliary Company;

[0062] Defoaming agent 0.35%, adopts the product of German BYK Chemical Auxiliary Company;

[0063] Dispersant 0.60%, using the product of BYK Chemical Auxiliary Company in Germany;

[0064] Thixotropic agent 1 1.00%, using products from Rockwood;

[0065] Thixotropic agent 2 0.28%, adopts the product of DuPont;

[0066] Zinc phosphate 11.50%, using the product of Shanghai Yipin Pigment Co., Ltd.;

[0067] Silica 5.00%, using the product of Shanghai Solutia Trading Co., ...

Embodiment 2

[0076] A drag-reducing and wear-resistant solvent-free coating for low-viscosity pipelines, comprising components A and B, and the mass percentages of the raw materials of components A and B are respectively:

[0077] A component: (the adoption of raw material is the same as embodiment 1)

[0078] Epoxy resin 43.00%;

[0079] Reactive diluent 16.00%;

[0080] Leveling agent 0.30%;

[0081] Defoamer 0.32%;

[0082] Dispersant 0.50%;

[0083] Thixotropic agent 1 0.80%

[0084] Thixotropic agent 2 0.40%

[0085] Zinc phosphate 5.00%;

[0086] Silica 10.00%

[0087] Iron oxide red powder 14.00%;

[0088] White ceramic powder 4.50%

[0089] Aluminum tripolyphosphate 5.18%;

[0090] Component B:

[0091] Modified amine 99.40%;

[0092] Thixotropic synergist 0.60%.

[0093] When the paint is used, the A component and the B component are used in combination according to the mass ratio A:B=4:1.

Embodiment 3

[0095] A drag-reducing and wear-resistant solvent-free coating for low-viscosity pipelines, comprising components A and B, and the mass percentages of the raw materials of components A and B are respectively:

[0096] A component: (the adoption of raw material is the same as embodiment 1)

[0097] Epoxy resin 50.00%;

[0098] Reactive diluent 12.00%;

[0099] Leveling agent 0.35%;

[0100] Defoamer 0.40%;

[0101] Dispersant 0.65%;

[0102] Thixotropic agent 1 0.60%;

[0103] Thixotropic agent 2 0.50%

[0104] Zinc phosphate 6.50%;

[0105] Silica 4.00%;

[0106] Iron oxide red powder 14.00%;

[0107] Aluminum tripolyphosphate 8.00%;

[0108] White ceramic powder 3.00%;

[0109] Component B:

[0110] Modified amine 99.20%;

[0111] Thixotropic synergist 0.80%.

[0112] When the paint is used, the A component and the B component are used together in a ratio of mass ratio A:B=3:1.

[0113] The application method of a drag-reducing and wear-resistant solvent-free co...

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Abstract

The invention relates to the technical field of coatings, in particular to an anti-drag wear-resistant solvent-free coating with low-viscosity for a pipeline. The anti-drag wear-resistant solvent-free coating with the low-viscosity comprises a component A and a component B, wherein the component A comprises epoxy resin, an active diluent, a flatting agent, an antifoaming agent, a dispersant, a thixotropic agent 1, a thixotropic agent 2, zinc phosphate, silica, iron oxide red powder, aluminum triphosphate and white pottery powder; the component B comprises modified amine and a thixotropic synergistic agent; and the component A and the component B are used together in the mass ratio of (3-5):1. The solvent-free coating with the low-viscosity has the positive effects of freeness from volatilizable solvent, capability of eliminating coating pin holes, high adhesion, high permeation resistance, high wear resistance, high corrosion resistance, smooth coating surface after being sprayed, good anti-drag and wear-resisting effects, and popularization and application prospects.

Description

technical field [0001] The invention relates to the technical field of coatings in chemical technology, in particular to a drag-reducing and wear-resistant solvent-free coating for low-viscosity pipelines, a preparation method thereof, and a method for applying (spraying) the solvent-free coating in large pipelines. Background technique [0002] The large-scale pipeline described in the present invention refers to the large-caliber long-distance oil and natural gas transmission pipeline with a diameter of more than 500mm used in the petroleum field. Use specialized paint. What the present invention mainly relates to is the drag-reducing coating in the pipeline, therefore, just no longer discuss other coatings. [0003] The research on drag reduction technology of pipeline inner coating began in the early 20th century, and it was widely used in long-distance natural gas pipelines in the 1950s. After decades of application development, the coating production and construction...

Claims

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Application Information

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IPC IPC(8): C09D163/00C09D163/02C09D5/08C09D7/12
Inventor 李芳丁武斌孙健杨铭
Owner SHANGHAI HILONG SHINE NEW MATERIAL
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