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.
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[0030] Example 1
[0031] A pressure-resistant sealing rubber material for pneumatic telescopic cylinders of security equipment. According to the mass parts, 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 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, 1.5 parts of antistatic agent.
[0032] In this embodiment, the preparation method of the modified natural rubber is:
[0033] (1) According to the mass parts, add 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 into the reactor , Continuous stirring at a speed of 120r / min, saponification reaction 18-24h at a temperature of 30°C;
[0034] (2) Add a 20wt% hy...
Example Embodiment
[0045] Example 2
[0046] A pressure-resistant sealing rubber material for pneumatic telescopic cylinders of security equipment. According to mass parts, 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, 1.8 parts of antistatic agent.
[0047] In this embodiment, the preparation method of the modified natural rubber is:
[0048] (1) According to the mass parts, add 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 into the reactor , Continuous stirring at a speed of 150r / min, saponification reaction at 35℃ for 24h;
[0049] (2) Add 20wt% hydrochloric acid solutio...
Example Embodiment
[0060] Example 3
[0061] A pressure-resistant sealing rubber material for pneumatic telescopic cylinders of security equipment. According to mass parts, 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 this embodiment, the preparation method of the modified natural rubber is:
[0063] (1) According to the mass parts, add 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 into the reactor , Continuous stirring at a speed of 140r / min, saponification reaction at 33℃ for 20h;
[0064] (2) Add a 20wt% hydrochlor...
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