Foaming nitrile rubber metal composite plate and preparation method thereof

A technology of metal composite board and nitrile rubber, which is applied in the direction of chemical instruments and methods, adhesives, adhesive types, etc., to achieve excellent sealing performance, excellent compression rate, and outstanding creep and relaxation resistance

Active Publication Date: 2017-05-31
南阳天一密封股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The above-mentioned foamed rubber composite plates can be used in the sealing field, but the compression, resilience and creep resistance of the above-mentioned composite plates need to be further improved and strengthened

Method used

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  • Foaming nitrile rubber metal composite plate and preparation method thereof
  • Foaming nitrile rubber metal composite plate and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] A foamed nitrile rubber metal composite board, comprising a metal substrate, the surface of the metal substrate is provided with a foamed rubber layer, and the foamed rubber layer is made of the following raw materials in parts by mass: 100 parts of nitrile rubber, zinc oxide 5 parts, 4 parts of accelerator, 1 part of sulfur, 30 parts of carbon black, 2.2 parts of foaming agent, 4 parts of auxiliary agent.

[0029] Among them, the foaming agent is a mixture of azodicarbonamide and CR-4305 at a weight ratio of 1:2, and the auxiliary agent is a mixture of carboxymethyl chitosan and an anti-aging agent at a weight ratio of 1:1. It is anti-aging agent AW and anti-aging agent RD, and the weight ratio of the two is 5:1. The raw materials and dosage of the accelerator are shown in the following table:

[0030] .

[0031] In the present invention, the metal substrate is selected from carbon steel plate, stainless steel plate or aluminum alloy plate, and the thickness is pref...

Embodiment 2

[0038] A foamed nitrile rubber metal composite board, comprising a metal substrate, the surface of the metal substrate is provided with a foamed rubber layer, and the foamed rubber layer is made of the following raw materials in parts by mass: 100 parts of nitrile rubber, zinc oxide 1 part, 2 parts of accelerator, 0.5 part of sulfur, 20 parts of carbon black, 1 part of foaming agent, 1 part of auxiliary agent.

[0039] Among them, the accelerator is tetramethylthiuram disulfide and N-cyclohexyl-2-benzothiazole sulfenamide, the weight ratio of the two is 1:1, and the auxiliary agent is carboxymethyl chitosan and anti-aging Anti-aging agent is a mixture composed of anti-aging agent at a weight ratio of 1:1, wherein the anti-aging agent is anti-aging agent AW and anti-aging agent RD, and the weight ratio of the two is 5:1. The raw materials and dosage of the foaming agent are shown in the following table:

[0040] .

[0041] The embodiment of this group is a kind of preparatio...

Embodiment 3

[0047] A foamed nitrile rubber metal composite board, comprising a metal substrate, the surface of the metal substrate is provided with a foamed rubber layer, and the foamed rubber layer is made of the following raw materials in parts by mass: 100 parts of nitrile rubber, zinc oxide 10 parts, accelerator 10 parts, sulfur 5 parts, carbon black 40 parts, foaming agent 5 parts, auxiliary agent 10 parts.

[0048] Among them, the blowing agent is a mixture of azodicarbonamide and CR-4305 at a weight ratio of 1:2, and the accelerator is tetramethylthiuram disulfide and N-cyclohexyl-2-benzothiazolesulfen Amide, the weight ratio of the two is 1:1, the raw materials and dosage of the auxiliary agent are as follows:

[0049] .

[0050] The embodiment of this group is a kind of preparation method of foamed nitrile rubber metal composite board, described foamed nitrile rubber metal composite board comprises metal substrate, and the surface of described metal substrate is provided with ...

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Abstract

The invention provides a foaming nitrile rubber metal composite plate and a preparation method thereof, and relates to a sealing material. The foaming nitrile rubber metal composite plate comprises a metal base plate, wherein a foaming rubber layer is arranged at the surface of the metal base plate; the foaming rubber layer is prepared from the following raw materials in parts by mass: 100 parts of nitrile rubber, 1 to 10 parts of zinc oxide, 2 to 10 parts of accelerant, 0.5 to 5 parts of sulfur, 20 to 40 parts of carbon black, 1 to 5 parts of foaming agent, and 1 to 10 parts of additive. The foaming nitrile rubber metal composite plate has the advantages that the compression rate is 32 to 47%, the resilience rate is more than 80%, the creepage relaxation rate is less than 4%, the sealing property ml/hr is equal to or less than 0.02, and the oil sealing and non-leakage properties are realized; for resistant fuel B at room temperature after 5h, the weight increase is less than 2%, and the thickness increase is less than 4%; for resistant ASTM No.3 fuel at the temperature of 150 DEG C after 5h, the weight increase is less than 4%, and the thickness increase is less than 3%; the excellent compression rate, resilience rate, anti-creepage property, temperature and oil-resistant property and the like are realized.

Description

technical field [0001] The invention belongs to the technical field of sealing materials, in particular to a foamed nitrile rubber metal composite plate and a preparation method thereof. Background technique [0002] Nitrile-butadiene rubber (NBR) has excellent oil resistance, solvent resistance and heat resistance due to the nitrile group in the molecule. After compounding, the nitrile rubber can have good compression resilience, and the long-term use temperature can reach 150°C. Compared with the fluororubber with the best heat resistance, its price is only 1 / 5 of the latter, which has obvious cost advantages. But at the same time, due to the existence of double bonds, the aging resistance and oxidation resistance of nitrile rubber are not as good as other saturated rubbers. [0003] The nitrile rubber coating prepared from nitrile rubber raw rubber and compounding agent is coated on the surface of the metal substrate by spraying, roller coating, flow coating, etc. After ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D109/02C09D7/12C09J161/06C09K3/10
CPCC08K3/04C08K3/22C08K5/40C08K5/47C08K13/02C08K2003/2296C08L2201/08C08L2203/14C09D7/61C09D7/63C09D7/65C09D109/02C09J161/06C09K3/10C08L5/08
Inventor 杨松涛陈宇翔朱建周杨会菊赵红祥樊红星张冰潭
Owner 南阳天一密封股份有限公司
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