Unlock instant, AI-driven research and patent intelligence for your innovation.

Magneto-rheological material, preparation method and iron container repairing method

A magneto-rheological and ferrous technology, applied in magnetic materials, inductance/transformer/magnet manufacturing, magnetic objects, etc., can solve problems such as poisoning, affecting production efficiency, gas or liquid leakage, etc.

Active Publication Date: 2021-04-30
BEIJING INSTITUTE OF TECHNOLOGYGY
View PDF5 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to corrosion or external force, pipes or containers are damaged or perforated, resulting in the leakage of gas or liquid stored and transported, which will not only cause environmental pollution, waste of resources, etc., but may also cause dangerous accidents such as explosions and poisoning.
[0003] The existing repair technology has problems such as long construction period and complicated process, which affect the production efficiency, and the rapid plugging technology also has problems such as poor applicability and poor sealing performance

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Magneto-rheological material, preparation method and iron container repairing method
  • Magneto-rheological material, preparation method and iron container repairing method
  • Magneto-rheological material, preparation method and iron container repairing method

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0039] Based on the same inventive concept, an embodiment of the present invention also provides a method for preparing a magnetorheological material as described in any of the previous technical solutions, including:

[0040] S100, reacting the metal powder and the coupling agent in an acidic environment at 40-50°C for 1-3 hours to obtain a modified metal powder;

[0041] S200, reacting the resin, dispersant and modified metal powder at 45-65°C for 1-2 hours to obtain a magnetic fluid;

[0042] S300, adding a curing agent and a diluent to the obtained magnetic fluid, and reacting for 1-3 hours to obtain a magnetorheological material.

[0043] In step S100, the metal powder is dispersed in a solvent, and the acidic environment is passed through acetic acid. The solvent may be ethanol solution, and the concentration of the ethanol solution may be 85-99%. The pH of the solution may be 3-5.

[0044] The metal powder can be fully dispersed by mechanical stirring.

[0045] Afte...

Embodiment 1

[0065] Weigh 50g of micron-sized iron powder and add it to 50ml of 95% ethanol solution, add acetic acid to adjust the pH value to 4, ultrasonically disperse at 40°C and mechanically stir for 5 minutes, then gradually add 1.1ml of coupling agent to the system, After the dropwise addition, continue to ultrasonically disperse and react with mechanical stirring for 2 hours. After the reaction, the powder was filtered out and dried at 70°C until constant weight. Grind and disperse the dried powder, add 60g of epoxy resin, raise the temperature to 60°C, add 0.08g of fatty alcohol polyoxyethylene ether, and stir thoroughly for 1 hour. Add 30g polyamide, 0.4gDMP-30, 8g polyethylene polyamine, 0.1g monododecyl potassium phosphate, 0.1g sodium dodecylsulfonate to the system, mechanically stir for 1 hour at room temperature, and gradually Add 10 g of ethylene glycol diglycidyl ether to obtain a magnetorheological repair material, and finally test related properties.

Embodiment 2

[0067] Weigh 50g of micron-sized iron powder and add it to 50ml of 95% ethanol solution, add acetic acid to adjust the pH value to 4, ultrasonically disperse at 40°C and mechanically stir for 5 minutes, then gradually add 1.1ml of coupling agent to the system, After the dropwise addition, continue to ultrasonically disperse and react with mechanical stirring for 2 hours. After the reaction, the powder was filtered out and dried at 70°C until constant weight. Grind and disperse the dried powder, add 80g of epoxy resin, raise the temperature to 60°C, add 0.1g of fatty alcohol polyoxyethylene ether, and stir thoroughly for 1 hour. Add 60g polyamide, 1gDMP-30, 20g polyethylene polyamine, 0.1g monododecyl potassium phosphate, 0.1g sodium dodecylsulfonate to the system, mechanically stir for 1 hour at room temperature, and gradually add 20g of ethylene glycol diglycidyl ether was used to obtain the magnetorheological repair material, and the relevant properties were finally tested....

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
quality scoreaaaaaaaaaa
Login to View More

Abstract

One or more embodiments of the present specification provide a magnetorheological material, a preparation method, and an iron container repair method. The magnetorheological material comprises the following substances in percentage by mass: 10-80% of metal powder, 0.05-0.08% of a coupling agent, 8-15% of a curing agent, 0.1-0.3% of an accelerant, 1-6% of a plasticizer, 2-10% of a diluent and the balance of resin. The preparation method comprises the following steps:reactingmetal powder and a coupling agent for 1-3 h in an acid environment at the temperature of 40-50 DEG C to obtain modified metal powder ; reacting resin, a dispersing agent and the modified metal powder at 45-65 DEG C for 1-2 hours to obtain magnetic fluid; and adding a curing agent and a diluent, and reacting for 1-3 hours to obtain the magneto-rheological material. The magneto-rheological material can cooperate with a strong magnet to block a damaged iron pipeline or an iron container, and the magneto-rheological material flows spontaneously under the traction of a magnetic field and is bonded between the magnet and the pipeline or the container.

Description

technical field [0001] One or more embodiments of this specification relate to the technical field of container repair, and in particular to a magnetorheological material, a preparation method and a method for repairing iron containers. Background technique [0002] Iron pipelines, storage tanks, etc. are widely used in energy, chemical and other industries. In the oil and gas industry, carbon steel pipelines undertake the main transportation tasks, especially for long-distance transportation such as the "West-to-East Gas Pipeline". Pipeline transportation is the most efficient and convenient way. In many chemical companies, iron pipes are indispensable for the transportation of liquids and gases, and the connection of process processes; at the same time, tank trucks and pressure vessels are also indispensable for product transportation. However, due to corrosion or external force, pipes or containers are damaged or perforated, resulting in the leakage of gas or liquid stor...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): C08L63/00C08L71/02C08K9/06C08K3/08C08K5/521C08K5/42H01F1/44H01F41/02
CPCC08L63/00H01F1/447H01F41/02C08K2003/0856C08L71/02C08K9/06C08K3/08C08K5/521C08K5/42
Inventor 刘振翼马云龙李明智赵耀
Owner BEIJING INSTITUTE OF TECHNOLOGYGY
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com