Magnetic leakage-stopping glue and preparation method thereof

A kind of sealing glue and magnetic technology, applied in the field of magnetic sealing glue and its preparation. uneven effect

Inactive Publication Date: 2016-03-02
JILIN INST OF CHEM TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in practical applications, it is found that this sealing material is easily blown away or washed away by the leaking pressure medium before curing or during use, and cannot form a good seal.
The reason is that this kind of sealing material can only be realize

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0018] Below in conjunction with specific embodiment the present invention is described in further detail:

[0019] The magnetic plugging glue of the present invention is composed of 50-70% organic silicon rubber, 30-50% magnetic powder, 10-30% organic silicon resin, 30-50% organic solvent, 1 ~2% comprehensive catalyst, 1~2% crosslinking agent, the sum of the above components is 100%.

[0020] The invention uses methyl vinyl silicone rubber as the base material, and uses its special physical and chemical properties to endow the magnetic plugging adhesive with good high temperature resistance (the highest service temperature can reach 250°C), and excellent softness at low temperature. It can be used outdoors even under the winter conditions in our country due to its strong and mutual viscosity (glass transition temperature is -115°C).

[0021] The present invention uses ferrite magnetic powder as the core filler, utilizes its special physical properties of being magnetizable a...

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PUM

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Abstract

The invention discloses magnetic leakage-stopping glue and a preparation method thereof. The magnetic leakage-stopping glue comprises 50-70% of organosilicon rubber, 30-50% of magnetic powder, 10-30% of organic silicon resin, 30-50% of an organic solvent, 1-2% of an integrated catalyst and 1-2% of a cross-linking agent. The preparation method comprises high speed mixing, mixing, standing, slicing, strip formation, package with a barrier paper, and magnetizing. The magnetic leakage-stopping glue has magnetic conductibility and a certain magnetic force and can be adsorbed by positions around leakage defects or be directly adsorbed by a work surface of a strong magnetic leakage-stopping tool. The magnetic leakage-stopping glue directly adsorbed by a work surface of a strong magnetic leakage-stopping tool is not easily blown or scattered by a leaked medium. The magnetic leakage-stopping glue belongs to a viscoelastic body, easily deforms and can effectively fill pits of the leaked defect positions. Through cooperation with the strong magnetic leakage-stopping tool, the magnetic leakage-stopping glue can realize fast leakage stopping under pressure. The magnetic leakage-stopping glue can be widely used for emergency and rush leakage stopping of containers, pipes, tank cars and gas cylinders.

Description

technical field [0001] The invention relates to a special plugging product in the technical field of leak plugging under pressure; in particular, it relates to a magnetic plugging glue and a preparation method thereof. Background technique [0002] With the rapid development of the national economy, containers, pipelines, tank trucks and gas cylinders have been widely used in the production, storage, transportation and use of hazardous chemicals. [0003] A container refers to a closed device that contains gas or liquid and carries a certain pressure; a pipeline is a tubular device that uses a certain pressure to transport gas or liquid; The device or frame adopts the transportation equipment composed of permanent connections, including railway tank cars, automobile tank cars, long tube trailers, tank containers and tube bundle containers, etc.; gas cylinders refer to compressed gas, high (low) pressure liquefied gas, low temperature Gases, dissolved gases, adsorbed gases, ...

Claims

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Application Information

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IPC IPC(8): C08L83/07C08L83/04C08K3/22
Inventor 吴巍张椿宜张正利于杰武杨梅李鑫其他发明人请求不公开姓名
Owner JILIN INST OF CHEM TECH
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