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High-impact-resistant anti-shearing ethylene propylene diene monomer material

An EPDM rubber and anti-shear technology, which is applied in the field of rubber, can solve the problems of large differences with the comparison documents, and the product's use effect is not as good as it is, and achieve the effects of overcoming poor adhesion, excellent sealing effect, and increasing wear resistance

Inactive Publication Date: 2016-11-16
TIANJIN BAOBOTE SEALING TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] Through comparison, it is found that there is a big difference between this application and the comparative document, and the product use effect is not as good as this application

Method used

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  • High-impact-resistant anti-shearing ethylene propylene diene monomer material
  • High-impact-resistant anti-shearing ethylene propylene diene monomer material
  • High-impact-resistant anti-shearing ethylene propylene diene monomer material

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Embodiment 1

[0031] A high-impact-resistant, shear-resistant EPDM material and a preparation method thereof, the components are as follows: the following are parts by weight

[0032]

[0033]

[0034] Its preparation method of above-mentioned material is as follows:

[0035] ⑴ Plasticize EPDM and EPDM separately, take out materials according to the ratio of raw materials, mix them in the open mill, and start mixing after mixing evenly.

[0036] (2) Mixing is carried out in the internal mixer, the top bolt is pressurized at 0.6 MPa, the maximum temperature is set at 110 degrees, and the feeding sequence: step (1) obtained rubber, organic zinc, nano-zinc oxide, carbon black, paraffin oil, over Oxides, carbon fibers, dispersants, hardeners, additives, knead for 9 minutes, feed into the open mill, and cool to below 60 degrees.

[0037] (3) Put the above-mentioned film into the internal mixer, add cross-linking agent, high-strength adhesive and other remaining original pressure and mix f...

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Abstract

The invention relates to an ethylene propylene diene monomer material for a high-low-temperature-resistant sealing part. The ethylene propylene diene monomer material is prepared from the following steps: 100 to 120 parts of EPDM, 1 to 10 parts of organic zinc, 1 to 3 parts of nano zinc oxide, 50 to 70 parts of carbon black, 5 to 20 parts of paraffin oil, 1 to 8 parts of assistant cross-linking agent, 2 to 4 parts of anti-aging agent, 1 to 5 parts of peroxide, 2 to 5 parts of carbon fibers and other additives. The ethylene propylene diene monomer material can be used in a severe engineering environment, for example, used in a reamer shaft of a dredging vessel in a sealing manner, in the working environment of the dredging vessel, the content of minerals and sand in the water is high, so that the wear resistance and torsion resistance are needed, and in particular the wear resistance is needed in the twisting process; by adding the carbon fiber, the wear resistance of the rubber is effectively improved, and the wear resistance of the adhesive is provided under certain torque.

Description

technical field [0001] The invention belongs to the field of rubber, and relates to an EPDM rubber material, in particular to an EPDM rubber material for super-high-resistant and low-temperature sealing parts. Background technique [0002] The floating seal is a kind of mechanical seal in the dynamic seal. It has super sealing performance in the harsh working environment with many coal powder, sediment, water vapor, etc. It is a compact mechanical seal and is mainly used for low speed and heavy load. occasion. It has the advantages of automatic compensation after wear resistance and end face wear, reliable operation, simple structure, etc., and is widely used in coal mine machinery. Such as bulldozer traveling mechanism, scraper conveyor head (tail) sprocket assembly, roadheader loading mechanism and cantilever section, continuous coal mining machine left and right cutting drum and reducer, etc. [0003] Floating sealing rings, such as sand dredgers, which are used in seve...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/16C08K13/04C08K7/06C08K3/04C08K3/22
CPCC08L23/16C08K2201/004C08K2201/011C08K2201/014C08L2205/025C08L2205/03C08K13/04C08K7/06C08K3/04C08K2003/2296
Inventor 靳温学申会杰
Owner TIANJIN BAOBOTE SEALING TECH
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