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Silicon seal ring

A sealing ring and silicone rubber technology, applied in the field of silicone rubber sealing rings, can solve the problems of poor wear resistance and low strength, and achieve the effects of high mechanical strength, improved tensile strength and good chemical stability

Inactive Publication Date: 2015-05-27
LIUZHOU JULONG TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a silicone rubber sealing ring, which can solve the problems of low strength and poor wear resistance of existing silicone rubber sealing rings

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0012] The silicone rubber sealing ring of this embodiment is made of the following raw materials in parts by weight: 80 parts of methyl vinyl silicone rubber, 35 parts of polyether polyurethane rubber, 2 parts of diphenylsilanediol, dihydroxy polydimethyl 0.5 parts of siloxane, 40 parts of fumed silica, 6 hydroxyl silicone oils, 2 antioxidants, 2 zinc stearates, 1 iron oxide, 2 copper oxides, and 2 accelerators. The specific surface area of ​​fumed silica is 160m 2 / g.

[0013] During preparation, add diphenylsilanediol, dihydroxypolydimethylsiloxane, fumed silica, and hydroxyl silicone oil to methyl vinyl silicone rubber, heat to 80°C in an internal mixer, and knead 5 minutes, then raise the temperature to 150°C, then add the remaining raw materials, knead for 2 hours, and then mix evenly in a double-roller rubber mixer, and the prepared rubber can be extruded through a mold.

[0014] The physical properties of the silicone rubber sealing ring in this example are as follow...

Embodiment 2

[0016] The silicone rubber sealing ring of this embodiment is made of the following raw materials in parts by weight: 100 parts of methyl vinyl silicone rubber, 25 parts of polyether polyurethane rubber, 4 parts of diphenylsilanediol, dihydroxypolydimethyl 3 parts of siloxane, 60 parts of fumed silica, 10 parts of hydroxyl silicone oil, 3 parts of antioxidant, 2 parts of zinc stearate, 2 parts of iron oxide, 2 parts of copper oxide, and 3 parts of accelerator. The specific surface area of ​​fumed silica is 180m 2 / g.

[0017] During preparation, add diphenylsilanediol, dihydroxypolydimethylsiloxane, fumed silica, and hydroxyl silicone oil to methyl vinyl silicone rubber, heat to 80°C in an internal mixer, and knead 8 minutes, then raise the temperature to 150°C, then add the remaining raw materials, knead for 2 hours, and then mix evenly in a double-roller rubber mixer, and the prepared rubber can be extruded through a mold.

[0018] The physical properties of the silicone r...

Embodiment 3

[0020] The silicone rubber sealing ring of this embodiment is made of the following raw materials in parts by weight: 90 parts of methyl vinyl silicone rubber, 30 parts of polyether polyurethane rubber, 6 parts of diphenylsilanediol, dihydroxy polydimethyl 2 parts of siloxane, 50 parts of fumed white carbon black, 8 parts of hydroxyl silicone oil, 3 parts of antioxidant, 3 parts of zinc stearate, 2 parts of iron oxide, 3 parts of copper oxide, and 3 parts of accelerator. The specific surface area of ​​fumed silica is 170m 2 / g.

[0021] During preparation, add diphenylsilanediol, dihydroxypolydimethylsiloxane, fumed silica, and hydroxyl silicone oil to methyl vinyl silicone rubber, heat to 80°C in an internal mixer, and knead 8 minutes, then raise the temperature to 150°C, then add the remaining raw materials, knead for 2 hours, and then mix evenly in a double-roller rubber mixer, and the prepared rubber can be extruded through a mold.

[0022] The physical properties of the...

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PUM

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Abstract

The invention discloses a silicon seal ring, relating to the technical field of a rubber composite material, which is prepared from the following raw materials in parts by weight: 80-100 parts of methyl vinyl silicone rubber, 25-35 parts of polyether polyurethane rubber, 2-6 parts of diphenylsilanediol, 0.5-3 parts of dihydroxy polydimethyl siloxane, 40-60 parts of fumed silica, 6-10 parts of hydroxyl silicone oil, 2-3 parts of anti-aging agent, 2-3 parts of zinc stearate, 1-2 parts of ferric oxide, 2-3 parts of copper oxide, and 2-3 parts of accelerator. Compared with the prior art, the silicon seal ring is good in chemical stability, high in mechanical strength, wear-resistant, high-temperature-resistant and anti-aging.

Description

technical field [0001] The invention relates to the technical field of rubber composite material processing, in particular to a silicone rubber sealing ring. Background technique [0002] The sealing ring is a common component that prevents gas, liquid leakage or foreign object intrusion, etc. The choice of sealing ring material has a significant impact on its sealing performance and service life. The sealing ring made of silicone rubber is a sealing element mainly used in special occasions such as high temperature or low temperature. The silicone rubber sealing ring has good heat resistance and low temperature resistance. It has good elasticity and is not easy to age and deform. Ozone, solvent resistance, electrical insulation, flame retardant and other aspects also have good performance. However, the existing silicone rubber sealing ring has the defects of low strength and poor wear resistance. Contents of the invention [0003] The object of the present invention is t...

Claims

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Application Information

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IPC IPC(8): C08L83/07C08L75/08C08L83/06C08K13/02C08K5/5419C08K3/36C08K5/098C08K3/22
Inventor 苏志强谢宇强
Owner LIUZHOU JULONG TECH
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