Anisotropic rubber material and preparation method thereof

A rubber material and anisotropic technology, applied in the field of anisotropic rubber material and its preparation, can solve the problems of tensile deformation, affecting water vapor sealing, shielding effect, etc. heterosexual effect

Active Publication Date: 2020-04-03
PINGHU ALLIED IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

To solve the problem of stretching and deformation of the existing rubber sealing strip, which affects the water vapor sealing and shielding effect

Method used

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  • Anisotropic rubber material and preparation method thereof
  • Anisotropic rubber material and preparation method thereof
  • Anisotropic rubber material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] The anisotropic rubber strip of present embodiment and preparation method are as follows:

[0037] 1) Mix aminopropyltriethoxysilane and purified water at a ratio of 1:10, stir for 10 minutes to fully hydrolyze the coupling agent, and add glass fibers with a ratio of 1:1 to purified water, with a diameter of about 3 μm and a long diameter The ratio is about 100. After stirring for 10 minutes and standing still for 20 minutes, put it into an oven for drying treatment. The drying condition is 120°C for 4 hours. After drying, it is cooled, and the cooled short fiber material is put into an ultrasonic disperser for ultrasonic dispersion treatment. After the dispersion is completed, it is ready for use; 2) Put 100 parts of methyl vinyl silicone rubber (vinyl mole fraction 0.15%) raw rubber into the kneader, masticate at 30 ° C for 10 minutes, and then add 15 parts of gas phase method Silica (with a specific surface area of ​​200m 2 / g), 3 parts of hydroxyl silicone oil, af...

Embodiment 2

[0039] The anisotropic rubber strip of present embodiment and preparation method are as follows:

[0040]1) Mix 3-(3,4-epoxycyclohexyl)ethyltrialkoxysilane and purified water at a ratio of 1.5:10, stir for 10 minutes to fully hydrolyze the coupling agent, add 1 / 2 amount of pure water Lun nanofiber with a diameter of about 60nm and an aspect ratio of about 120, then add 1 / 2 glass fiber of pure water with a diameter of about 5μm and an aspect ratio of about 150, stir for 15 minutes, let it stand for 20 minutes, and then put it in an oven Carry out drying treatment, the drying condition is 120°C, 4h. After drying, it is cooled, and the cooled short fiber material is put into an ultrasonic disperser for ultrasonic dispersion treatment. After the dispersion is completed, it is ready for use; 2) Put 100 parts of methyl vinyl silicone rubber (vinyl mole fraction 0.15%) raw rubber into the kneader, masticate at 30°C for 10 minutes, and then add 10 parts of gas phase method Silica (w...

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Abstract

The invention discloses an anisotropic rubber material and a preparation method thereof. The anisotropic rubber material comprises the following components in parts by weight: 100 parts of raw rubber,5-30 parts of white carbon black, 1-5 parts of hydroxyl silicone oil, 2-10 parts of silica powder, 5-50 parts of short fibers, 1-5 parts of a silane coupling agent, 2-8 parts of a diluent and 0.5-5 parts of a cross-linking agent. The short fibers are axially oriented along the extruded sealing strip, so that the extruded rubber material has anisotropism, tensile deformation is prevented in the axial direction of the rubber strip, high elasticity of the rubber material is kept in the vertical direction of the rubber strip, and the problem of stretching of a common rubber sealing strip in the assembling process can be effectively solved. And meanwhile, compared with an extruded rubber strip containing a continuous framework material, the production process is simple, and the extrusion continuity is good.

Description

technical field [0001] The invention belongs to the technical field of rubber materials, and in particular relates to an anisotropic rubber material and a preparation method thereof. Background technique [0002] Usually, the rubber sealing strip is easy to be stretched during the assembly process due to the material's own characteristics, resulting in a change in the cross-sectional size of the sealing strip, which affects its water vapor sealing performance. For the composite extruded sealing strip with electromagnetic shielding properties, the conductive side will be stretched and deformed along with the rubber side, which will destroy the conductive network between the conductive fillers, increase the resistance of the conductive side, and reduce the overall shielding effectiveness of the shielding sealing strip. . At present, a continuous skeleton material has been introduced in the forming process of the sealing strip to prevent the stretching deformation of the seali...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L83/07C08L83/04C08L77/10C08K13/06C08K9/06C08K7/14C08K7/26C08K7/10C08K5/01
CPCC08L83/04C08K2201/003C08K2201/016C08K2201/006C08L2205/16C08L2205/025C08L2205/03C08L77/10C08K13/06C08K9/06C08K7/14C08K7/26C08K7/10C08K5/01
Inventor 胡星星尚晨光
Owner PINGHU ALLIED IND
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