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Injection organic material for repairing pipeline and preparing method therefor

An organic material and pipeline repair technology, applied in the direction of pipe elements, mechanical equipment, pipes/pipe joints/pipe fittings, etc., can solve problems such as problems in use effect, achieve high compressive strength, low reaction exothermic peak, and preparation process simple effect

Inactive Publication Date: 2006-08-09
国家管网集团北京管道有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the injection resin used is a variety of resins available in the market, and there are problems in the use effect

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] Embodiment 1: A kind of formulation that is suitable for the condition that the ambient temperature is lower than 30 ℃.

[0041] A, base material each component weight percent is:

[0042] Liquid bisphenol A epoxy resin 35%

[0043] Liquid modified nitrile rubber elastomer 30%

[0044] Liquid ended epoxy based polyurethane elastomer 20%

[0045] Quartz powder treated with coupling agent 8%

[0046] Fumed silica 7%

[0047] B, each component weight percent of curing agent is:

[0048] Modified cycloaliphatic amine curing agent 40%

[0049] Polyamide curing agent 25%

[0050] Modified aliphatic amine curing agent 35%

Embodiment 2

[0051] Embodiment 2: A kind of formula that is suitable for use under conditions where the ambient temperature is higher than 30°C.

[0052] A, base material each component weight percent is:

[0053] Liquid bisphenol A epoxy resin 30%

[0054] Liquid Modified Nitrile Rubber Elastomer 32%

[0055] Liquid Carboxyl Terminated Polyurethane Elastomer 20%

[0056] Kaolin treated with coupling agent 10%

[0057] Fumed silica 8%

[0058] B, each component weight percent of curing agent is:

[0059] Modified cycloaliphatic amine curing agent 40%

[0060]Polyamide curing agent 30%

[0061] Modified aliphatic amine curing agent 30%

[0062] Example of preparation method for injecting organic material for pipeline repair: It is divided into base material and curing agent to prepare separately.

[0063] 1. Preparation of base material:

[0064] The liquid bisphenol A type epoxy resin, the liquid modified nitrile rubber elastomer, the liquid end epoxy-based polyurethane elastomer ...

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Abstract

This invention relates to an organic material used in pipeline repairing exercises and its preparation method, in which, the organic material is divided into basic material and solidifier characterizing that the composition of the base material is: liquid state bisphenol type-A epoxy resin, liquid state modified rubber elastomer, a liquid modified PUR elastomer, inorganic filler and gas-phase method SiO2, the composition of the solidifier is: alicyclic amine solidifier, PA solidifier and modified fat group amine solidifier, which is good in toughness, high anti-pressure strength, high strength in adhering metals, extremely low retraction rate before and after the solidifying.

Description

technical field [0001] The invention relates to the technical field of repairing oil and gas pipelines, in particular to an organic material and its Preparation. Background technique [0002] With the development of the petroleum industry, the number of oil and gas pipelines is increasing, and the operation period is getting longer and longer. Due to various reasons, accidents such as pipeline corrosion, perforation, cracking and blasting have also increased accordingly. Therefore, how to quickly repair has become a problem of economic value and social significance when an emergency rupture accident occurs in oil and gas pipelines. [0003] Usually, the traditional pipeline cutting and replacement techniques are used for emergency repair of pipelines, which is laborious, time-consuming, and wastes materials, making it difficult to quickly restore oil and gas transmission production. Therefore, oil and gas pipeline technicians have invented many pipeline plugging devices an...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L63/02C08L9/02C08K3/36F16L55/16C08L75/04
Inventor 董绍华魏振红周永涛费凡王彦军魏强邦
Owner 国家管网集团北京管道有限公司
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