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Rubber gasket containing modified vermiculite nano-powder

A technology of rubber gaskets and vermiculite powder, applied in the field of rubber gaskets, can solve the problems of inconvenient production, service life and durability, high temperature resistance and weathering resistance, etc., and achieve long service life and good impact elasticity. , the effect of increasing the strength of the material

Inactive Publication Date: 2014-07-23
ANHUI MENGLING PRECISION ELECTRONICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the service life, durability, high temperature resistance, and weather aging resistance of gaskets made of a single material are difficult to meet the requirements at present. Some gaskets need to be replaced and tested frequently, which brings inconvenience to production.

Method used

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  • Rubber gasket containing modified vermiculite nano-powder

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0013] A rubber gasket containing modified nano-vermiculite powder, which is made of the following raw materials in parts by weight: 110 parts of fluororubber, 22 parts of polyvinyl chloride, 5 parts of dibenzothiazole disulfide, bismaleyl 8 parts of amine, 3.5 parts of dodecyl alcohol ester, 3 parts of glass fiber, 7 parts of modified nano vermiculite powder, 15 parts of asbestos, 13 parts of spray carbon black, 10 parts of coumarone, 6 parts of calcium carbonate, 6 parts of magnesium oxide 6 parts of calcium hydroxide, 7 parts of chlorinated paraffin, 2.2 parts of polyethylene wax, 5 parts of naphthenic oil, and 5 parts of modified tree ash.

[0014] Among them, the modified nano vermiculite powder is prepared by the following method: calcining the vermiculite at 700°C for 6 hours, then soaking it in a 10% sodium bicarbonate solution for 6 hours, drying it at 70°C, and grinding it into nano Powder is fine.

[0015] The modified tree ashes are prepared by the following metho...

Embodiment 2

[0018] A rubber gasket containing modified nano-vermiculite powder, which is made of the following raw materials in parts by weight: 120 parts of fluororubber, 27 parts of polyvinyl chloride, 7 parts of dibenzothiazole disulfide, bismaleyl 10 parts of amine, 3.4 parts of dodecyl alcohol ester, 4 parts of glass fiber, 6 parts of modified nano vermiculite powder, 18 parts of asbestos, 15 parts of spray carbon black, 12 parts of coumarone, 8 parts of calcium carbonate, 5 parts of magnesium oxide 6 parts of calcium hydroxide, 8 parts of chlorinated paraffin, 2.4 parts of polyethylene wax, 4 parts of naphthenic oil, and 6 parts of modified tree ash.

[0019] Wherein, the modified nano-vermiculite powder is prepared by the following method: calcining vermiculite at 800°C for 6 hours, then soaking in 11% sodium bicarbonate solution for 6 hours, drying at 80°C, It can be ground into nano powder.

[0020] The modified tree ashes are prepared by the following method: first soak the tre...

Embodiment 3

[0023] A rubber gasket containing modified nano-vermiculite powder, which is made of the following raw materials in parts by weight: 130 parts of fluororubber, 30 parts of polyvinyl chloride, 8 parts of dibenzothiazole disulfide, bismaleyl 2 parts of amine, 3.5 parts of dodecyl alcohol ester, 5 parts of glass fiber, 7 parts of modified nano vermiculite powder, 20 parts of asbestos, 16 parts of spray carbon black, 10 parts of coumarone, 10 parts of calcium carbonate, 5 parts of magnesium oxide 7 parts of calcium hydroxide, 9 parts of chlorinated paraffin, 2.5 parts of polyethylene wax, 5 parts of naphthenic oil, 7 parts of modified tree ash.

[0024] Wherein, the modified nano vermiculite powder is prepared by the following method: calcining the vermiculite at 900°C for 5 hours, then soaking it in a 12% sodium bicarbonate solution for 6 hours, drying it at 80°C, and drying it at 80°C. It can be ground into nano powder.

[0025] The modified tree ashes are prepared by the follo...

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Abstract

The invention discloses a rubber gasket containing modified vermiculite nano-powder. The rubber gasket is prepared from the following raw materials in parts by weight: 110-130 parts of fluororubber, 22-30 parts of polyvinyl chloride, 5-8 parts of dibenzothiazyl disulfide, 8-12 parts of bismaleimide, 3.3-3.5 parts of bis-dodecyl alcohol ester, 3-5 parts of glass fiber, 5-7 parts of modified vermiculite nano-powder, 15-20 parts of asbestos, 12-16 parts of spraying carbon black, 10-12 parts of coumarone, 5-10 parts of calcium carbonate, 5-6 parts of magnesium oxide, 6-7 parts of calcium hydroxide, 7-9 parts of chlorinated paraffin, 2.2-2.5 parts of polyethylene wax, 3.5-5 parts of naphthenic oil and 5-7 parts of modified wood ash. The rubber gasket is reasonable in formula, has excellent comprehensive performances of high temperature resistance, cold-hot resistance, corrosion resistance, aging resistance, radiation resistance and the like, has self-lubrication and air tightness, is excellent in insulation performance, good in impact elasticity and long in service life, and can be widely applied in various electronic and electrical equipment.

Description

technical field [0001] The invention relates to the field of gasket materials, in particular to a rubber gasket containing modified nano vermiculite powder. Background technique [0002] Gaskets are mechanical seals between two objects, and since machined surfaces cannot be perfect, irregularities can be filled with gaskets. Gaskets are usually made of sheet materials such as rubber, metal, cork, felt, fiberglass or plastic polymers. With the development of science and technology, the application of gaskets on electronic devices is becoming more and more extensive. At the same time, the performance requirements of gaskets are getting higher and higher, such as shockproof, waterproof, breathable, corrosion-resistant, weather-resistant and high-temperature resistant. performance. However, the service life, durability, high temperature resistance, and weather aging resistance of gaskets made of a single material are difficult to meet the requirements. Some gaskets need to be ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L27/12C08L27/06C08K13/06C08K9/02C08K9/04C08K3/34C08K3/04C08K3/26C08K3/22C08K7/14
Inventor 凌巧钱胜利
Owner ANHUI MENGLING PRECISION ELECTRONICS
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