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Pressure-proof sealing rubber material for pneumatic telescopic cylinder of security equipment

A rubber material, pneumatic expansion and contraction technology, applied in the field of rubber materials, can solve the problems of unsuitable pneumatic expansion cylinder, easy aging, insufficient wear resistance and temperature change resistance, etc.

Inactive Publication Date: 2018-12-07
HEFEI XINYADA INTELLIGENT TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this type of sealing ring has poor pressure bearing performance, insufficient wear resistance and temperature change resistance, and is easy to age in high temperature environment and easy to embrittle in low temperature environment
Therefore, it is not suitable for use with the sealing structure of the pneumatic telescopic cylinder

Method used

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  • Pressure-proof sealing rubber material for pneumatic telescopic cylinder of security equipment
  • Pressure-proof sealing rubber material for pneumatic telescopic cylinder of security equipment

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] A pressure-resistant sealing rubber material for a pneumatic telescopic cylinder of security equipment. According to the parts by mass, the rubber material includes the following components: 60 parts of nitrile rubber, 45 parts of modified natural rubber, 13 parts of thermoplastic elastomer, and 15 parts of pressure-resistant filler 6 parts, 6 parts of reinforcing agent, 2 parts of trioctyl trimellitate, 3 parts of coupling agent, 2 parts of accelerator, 1.5 parts of sulfur, and 1.5 parts of antistatic agent.

[0032] In the present embodiment, the preparation method of modified natural rubber is:

[0033](1) According to the number of parts by mass, 200 parts of purified latex, 7.2 parts of 10wt% polyoxyethylene lauryl ether sodium sulfate aqueous solution, 15 parts of 30wt% sodium hydroxide solution and 100 parts of deionized water are added to the reactor , continuously stirring at a speed of 120r / min, saponification reaction at a temperature of 30°C for 18-24h;

[...

Embodiment 2

[0046] A pressure-resistant sealing rubber material for a pneumatic telescopic cylinder of security equipment. According to the parts by mass, the rubber material includes the following components: 75 parts of nitrile rubber, 50 parts of modified natural rubber, 17 parts of thermoplastic elastomer, and 20 parts of pressure-resistant filler parts, 9 parts of reinforcing agent, 5 parts of trioctyl trimellitate, 4 parts of coupling agent, 2.8 parts of accelerator, 3 parts of sulfur, and 1.8 parts of antistatic agent.

[0047] In the present embodiment, the preparation method of modified natural rubber is:

[0048] (1) According to the number of parts by mass, 200 parts of purified latex, 7.2 parts of 10wt% polyoxyethylene lauryl ether sodium sulfate aqueous solution, 15 parts of 30wt% sodium hydroxide solution and 100 parts of deionized water are added to the reactor , continuously stirred at a speed of 150r / min, and saponified at a temperature of 35°C for 24h;

[0049] (2) In t...

Embodiment 3

[0061] A pressure-resistant sealing rubber material for a pneumatic telescopic cylinder of security equipment. According to the parts by mass, the rubber material includes the following components: 69 parts of nitrile rubber, 47 parts of modified natural rubber, 15 parts of thermoplastic elastomer, and 18 parts of pressure-resistant filler parts, 7.5 parts of reinforcing agent, 3.6 parts of trioctyl trimellitate, 3.5 parts of coupling agent, 2.4 parts of accelerator, 2.1 parts of sulfur, and 1.7 parts of antistatic agent.

[0062] In the present embodiment, the preparation method of modified natural rubber is:

[0063] (1) According to the number of parts by mass, 200 parts of purified latex, 7.2 parts of 10wt% polyoxyethylene lauryl ether sodium sulfate aqueous solution, 15 parts of 30wt% sodium hydroxide solution and 100 parts of deionized water are added to the reactor , continuously stirred at a speed of 140r / min, and saponified at a temperature of 33°C for 20h;

[0064] ...

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Abstract

The invention relates to the technical field of rubber materials, in particular to a pressure-proof sealing rubber material for a pneumatic telescopic cylinder of security equipment. The rubber material includes the following components: butadiene-acrylonitrile rubber, modified natural rubber, a thermoplastic elastomer, a pressure resistant filler, a reinforcing agent, trioctyl trimellitate, a coupling agent, an accelerant, sulfur and an antistatic agent, wherein the thermoplastic elastomer comprises one of a SBS elastomer, a SEPS elastomer, a SEBS elastomer and a SIS elastomer; the pressure resistant filler contains nano-silica, nano-silicon carbide, nano-white corundum and nano-zinc oxide; the antistatic agent contains one or a mixture of any of the four lithium salt components of LiClO4, LiAsF6, LiBF4 and LiPF6. The rubber material has excellent gas tightness, good elasticity, outstanding pressure resistance and wear resistance, high cycle number of pressure recovery, and long service life.

Description

technical field [0001] The invention relates to the technical field of rubber materials, in particular to a pressure-resistant sealing rubber material for a pneumatic telescopic cylinder of security equipment. Background technique [0002] Pneumatic telescopic cylinder, also known as pneumatic telescopic cylinder or pneumatic cylinder, is an energy-converting pneumatic actuator that can convert air pressure energy into linear motion mechanical work. When in use, the pneumatic cylinder converts the air pressure energy into mechanical energy and performs linear reciprocating motion. It is simple in structure and reliable in operation. When it is used to realize reciprocating motion, the deceleration device can be eliminated, and there is no transmission gap, and the motion is stable. Therefore, it is widely used in various mechanical pneumatic systems. The output force of the pneumatic cylinder is proportional to the effective area of ​​the piston and the pressure difference ...

Claims

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Application Information

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IPC IPC(8): C08L9/02C08L51/04C08L71/02C08L53/02C08L33/26C08K13/02C08K5/12C08K3/06C08K3/30C08K3/36C08K3/34C08K3/22
Inventor 张玉
Owner HEFEI XINYADA INTELLIGENT TECH CO LTD
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