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Processing technology for enhancing pressure change resistance of magnetic rubber

A processing technology, magnetic rubber technology, applied in textiles and papermaking, fiber chemical characteristics, carbon fiber and other directions, can solve the problems of general effect, reduced pressure change resistance, unable to meet demand, etc., to achieve good support and pressure change resistance. The effect of lifting and preventing collapse

Inactive Publication Date: 2021-03-09
LINGBI COUNTY LINGCI NEW MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For example, Chinese patent CN2018104862852 discloses a magnetic rubber seal composite material with high pressure resistance and its preparation method. This technical solution adjusts the ratio of the rubber material system to increase the crosslinking degree of the rubber, thereby realizing the magnetic rubber material. Enhancement of pressure set resistance; however, in practical applications, the enhancement of pressure set resistance is only achieved by increasing the crosslinking degree of rubber, the effect is general, and the decrease trend of pressure set resistance is obvious after long-term use, which cannot meet the demand

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] A processing technology for enhancing the resistance to pressure change of magnetic rubber, the specific processing technology is as follows:

[0023] Preparation of S1 magnetic fibers

[0024] According to the mass volume ratio of 1:60g / mL, the weighed polyimide nanofibers (diameter 200-500nm, length 50-80μm) were immersed in a hydrochloric acid solution with a mass fraction of 20% for 30min, washed until medium After drying, take cobalt dichloride and ferric chloride respectively according to the molar ratio of 1:2, add a certain amount of distilled water to form a mixed solution with a cobalt dichloride content of 0.4mol / L, according to the polyimide The nanofiber accounts for 2% of the total weight of the mixed solution. The polyimide nanofiber is added to the mixed solution and mixed thoroughly, and then quickly added to the sodium hydroxide solution with a concentration of 0.1mol / L in a 90°C water bath along the glass rod. Stir continuously at 130r / min for 2h, co...

Embodiment 2

[0039] A processing technology for enhancing the resistance to pressure change of magnetic rubber, the specific processing technology is as follows:

[0040] Preparation of S1 magnetic fibers

[0041] According to the mass volume ratio of 1:70g / mL, put the weighed polyimide nanofibers (diameter 200-500nm, length 50-80μm) into the hydrochloric acid solution with a mass fraction of 23% for 35min, wash to medium After drying, take cobalt dichloride and ferric chloride respectively according to the molar ratio of 1:2, add a certain amount of distilled water to form a mixed solution with a cobalt dichloride content of 0.5mol / L, according to the polyimide The nanofiber accounts for 2.5% of the total weight of the mixed solution. The polyimide nanofiber is added to the mixed solution and mixed thoroughly, and then quickly added to the sodium hydroxide solution with a concentration of 0.15mol / L in a 92°C water bath along the glass rod. Stir continuously at 150r / min for 2.5h, control ...

Embodiment 3

[0056] A processing technology for enhancing the resistance to pressure change of magnetic rubber, the specific processing technology is as follows:

[0057] Preparation of S1 magnetic fibers

[0058] According to the mass volume ratio of 1:80g / mL, the weighed polyimide nanofibers (diameter 200-500nm, length 50-80μm) were immersed in a hydrochloric acid solution with a mass fraction of 25% for 40min, washed until medium After drying, take cobalt dichloride and ferric chloride respectively according to the molar ratio of 1:2, add a certain quality of distilled water to make a mixed solution with a cobalt dichloride content of 0.6mol / L, according to the polyimide The nanofiber accounts for 3% of the total weight of the mixed solution. The polyimide nanofiber is added to the mixed solution and mixed thoroughly, and then quickly added to the sodium hydroxide solution with a concentration of 0.2mol / L in a 95°C water bath along the glass rod. Stir continuously at 160r / min for 3h, c...

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Abstract

The invention discloses a processing technology for enhancing the pressure change resistance of magnetic rubber, and relates to the technical field of magnetic rubber processing. The specific technological method comprises the following steps of: S1, preparation of magnetic fibers; S2, preparation of a skeleton material; S3, preparation of a magnetic support member; and S4, processing and preparation of the magnetic rubber. According to the processing technology provided by the invention, the compression deformation quantity of the magnetic rubber can be effectively reduced, so that the pressure change resistance of the magnetic rubber is enhanced, and the magnetic rubber has more excellent sealing performance.

Description

technical field [0001] The invention belongs to the technical field of magnetic rubber processing, and in particular relates to a processing technology for enhancing the pressure change resistance of magnetic rubber. Background technique [0002] Rubber is widely used in automotive tires, rubber shoe soles, conveyor belts and other industrial products. In recent years, unique and usable rubbers such as electronic devices, transformation, biometric electronic devices, and electric and magnetic sealing materials have aroused the enthusiasm of researchers, especially magnetic rubber composites, which are one of the unique and usable materials. Magnetic rubber is a unique smart composite material that combines the elasticity of the rubber matrix with the magnetism of the magnetic filler, which has potential applications in many aspects, such as damping devices, artificial muscles used by bionic robots, electromagnetic interference shielding systems, magnetic shapes Memory polym...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08J5/06C08L9/02C08L23/16C08L9/06C08L79/08C08K13/06C08K9/02C08K7/06C08K5/14C08K5/3492C08K3/22C08K3/04D01F9/22D06M11/48D06M11/49D06M101/30D06M101/40
CPCC08J5/06C08J2309/02C08J2309/06C08J2323/16C08J2479/08C08K3/04C08K5/14C08K5/34924C08K7/06C08K9/02C08K13/06C08K2003/2296C08K2201/01D01F9/225D06M11/48D06M11/49D06M2101/30D06M2101/40
Inventor 马五闯
Owner LINGBI COUNTY LINGCI NEW MATERIALS
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