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Pipeline outer anticorrosion layer protective material

A technology of protective material and anti-corrosion layer, applied in the field of pipeline system, can solve the problems of peeling off the protective layer, insufficient adhesion, insufficient scratch resistance of the protective layer, etc.

Active Publication Date: 2015-04-22
PIPECHINA SOUTH CHINA CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the actual engineering application of the above two protective materials, due to the insufficient scratch resistance of the protective layer and insufficient adhesion with 3PE, the protective layer is peeled off and scratched.

Method used

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  • Pipeline outer anticorrosion layer protective material
  • Pipeline outer anticorrosion layer protective material
  • Pipeline outer anticorrosion layer protective material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] This embodiment provides a protective material for the outer anti-corrosion layer of a pipeline, which includes a protective layer covering the outside of the pipeline and a putty system at both ends of the protective layer. The protective layer includes a resin system and a fiber reinforcement. The resin system includes the following components in mass percentage: E51 epoxy resin 35%, E44 epoxy resin 25%, modified aliphatic amine curing agent 10%, low molecular polyamide curing agent 21%, 2,4,6 - Tris(dimethylaminomethyl)phenol accelerator 2%, 2-ethyl-4 methylimidazole accelerator 2%, polypropylene oxide butyl ether reactive diluent 5%. The fiber reinforcement used is 200g / m 2 Carbon fiber jersey. The putty system includes the following components in mass percentage: 30% of E51 epoxy resin, 20% of E44 epoxy resin, 5% of modified aliphatic amine curing agent, 10% of low molecular weight polyamide curing agent, 2-ethyl- 4 Methylimidazole accelerator 1%, silane coupling...

Embodiment 2

[0032] This embodiment provides a protective material for the outer anti-corrosion layer of a pipeline, which includes a protective layer covering the outside of the pipeline and a putty system at both ends of the protective layer. The protective layer includes a resin system and a fiber reinforcement. The resin system includes the following components in mass percentage: E51 epoxy resin 43%, E44 epoxy resin 20%, modified aliphatic amine curing agent 6%, low molecular polyamide curing agent 25%, 2,4,6 - Tris(dimethylaminomethyl)phenol accelerator 1%, 2-ethyl-4 methylimidazole accelerator 2%, polypropylene oxide butyl ether reactive diluent 3%. The fiber reinforcement used is 200g / m 2 Fiberglass twill. The putty system includes the following components in mass percentage: 35% of E51 epoxy resin, 15% of E44 epoxy resin, 10% of modified aliphatic amine curing agent, 15% of low molecular weight polyamide curing agent, 2-ethyl- 4 Methylimidazole accelerator 2%, silane coupling ag...

Embodiment 3

[0034] This embodiment provides a protective material for the outer anti-corrosion layer of a pipeline, which includes a protective layer covering the outside of the pipeline and a putty system at both ends of the protective layer. The protective layer includes a resin system and a fiber reinforcement. The resin system includes the following components in mass percentage: E51 epoxy resin 45%, E44 epoxy resin 18%, modified aliphatic amine curing agent 9%, low molecular polyamide curing agent 20%, 2,4,6 - Tris(dimethylaminomethyl)phenol accelerator 2%, 2-ethyl-4 methylimidazole accelerator 1%, polypropylene oxide butyl ether reactive diluent 5%. The fiber reinforcement used is 200g / m 2 Ultra-high molecular weight polyethylene fiber non-weft fabric. The putty system includes the following components in mass percentage: 40% of E51 epoxy resin, 15% of E44 epoxy resin, 6% of modified aliphatic amine curing agent, 25% of low molecular weight polyamide curing agent, 2-ethyl- 4 Methy...

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Abstract

The invention relates to a pipeline outer anticorrosion layer protective material. The pipeline outer anticorrosion layer protective material comprises a protective layer covering a pipeline and putty systems which are arranged on two ends of the protective layer, wherein the protective layer comprises a resin system and a fiber reinforcement; the resin system comprises E51 epoxy resin, E44 epoxy resin, modified fatty amine curing agent, low-molecular polyamide curing agent, 2,4,6-tris(dimethylaminomethyl) phenol accelerant, 2-ethyl-4methylimidazole accelerant and polymer epoxypropane butyl ether active diluting agent; the fiber reinforcement is ultrahigh-molecular-weight polyethylene fiber, carbon fiber, glass fiber, basalt fibers and a fabric made of the fibers, and the fabric is nonwoven cloth or unidirection cloth, plain cloth, twill and satin weave cloth; each putty system comprises E51 epoxy resin, E44 epoxy resin, modified fatty amine curing agent, low-molecular polyamide curing agent, 2-ethyl-4methylimidazole accelerant, silane coupling agent KH550, flexibilizer CYH-277 and glass beads. The pipeline outer anticorrosion layer protective material has the characteristics of scratch resistance, bending resistance, excellent impact resistance and convenience in construction.

Description

technical field [0001] The invention relates to the technical field of pipeline systems, in particular to a pipeline outer anticorrosion layer protection material. Background technique [0002] The directional drilling and crossing technology of long-distance pipelines has the characteristics of short construction period and little environmental disturbance. It is suitable for the laying of buried pipelines in railways, highways, rivers and other areas. It is an efficient trenchless buried pipeline laying technology. Widely used in long-distance pipeline construction. The directional drilling crossing construction will not affect the normal life and work order of the crossing section, and solves the interference of traditional excavation construction on residents' lives and the damage and impact on the environment. The external anti-corrosion of the crossing pipeline is mainly made of 3PE, FBE and heat-shrinkable tape, which has good anti-corrosion and strong impact resista...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L63/00C08L23/06C08K7/06C08K7/14C08K7/10C08G59/20C08G59/60C09D5/34F16L58/10
Inventor 李荣光赵国星冯少广廉春雷刘国豪张鑫张巍杜娟张轩刘雯
Owner PIPECHINA SOUTH CHINA CO
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