Hydrogenated butadiene-acrylonitrile rubber composition material and preparation method and application thereof

A technology for hydrogenated nitrile-butadiene rubber and composition, which is applied in the fields of hydrogenated nitrile-butadiene rubber composition material, preparation and application, and can solve the problems of poor mechanical properties, poor resistance, poor resistance to polar oil, etc.

Inactive Publication Date: 2018-10-16
JIANGSU LUOSHI DAMPING MEMBER CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The actual technical problem to be solved in the present invention is to overcome the poor mechanical properties of the oil dipstick casing oil seal material (such as acrylate rubber) in the prior art, the poor low temperature resistance, and the resistance of ethylene-acrylate rubber to low aniline point oil ( Such as IRM No.903 oil, ASTM No.3

Method used

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  • Hydrogenated butadiene-acrylonitrile rubber composition material and preparation method and application thereof
  • Hydrogenated butadiene-acrylonitrile rubber composition material and preparation method and application thereof
  • Hydrogenated butadiene-acrylonitrile rubber composition material and preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1～5、 comparative example 1～2

[0083] Table 1

[0084]

[0085]

[0086]

[0087] "-" in Table 1 indicates that the dosage is "0".

Embodiment 1～5

[0089] Embodiments 1 to 5, the raw material components of each embodiment in Table 1 are obtained according to the following preparation steps to obtain the product of each embodiment (the parameters of each step are as shown in Table 2):

[0090] (1) In a banbury mixer, hydrogenated nitrile rubber A and hydrogenated nitrile rubber B rubber are mixed to obtain mixture A;

[0091] (2) In an internal mixer, mix mixture A, activator zinc oxide, magnesium oxide, stearic acid, antioxidant, polyethylene glycol, Si-69, and white carbon black to obtain mixture B;

[0092] (3) In a banbury mixer, mixture B and carbon black A are mixed to obtain mixture C;

[0093] (4) In the internal mixer, mix mixture C, carbon black B, and plasticizer, carry out glue removal in the internal mixer, and release the sheet in the open mixer (carry out in the open mixer, wheelbase 3mm ) to get rubber premix;

[0094] (5) Put the rubber premixed glue to rest, generally at room temperature;

[0095] (6) ...

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Abstract

The invention discloses a hydrogenated butadiene-acrylonitrile rubber composition material, and a preparation method and application thereof. The hydrogenated butadiene-acrylonitrile rubber composition material is prepared from the following raw material components in parts by weight: 100 parts of hydrogenated butadiene-acrylonitrile rubber, 4-10 parts of zinc oxide, 0.5-2.5 parts of stearic acid,1-4 parts of an anti-ageing agent, 20-30 parts of carbon black with a particle size of 26-30 nm, 25-35 parts of carbon black with a particle size of 40-48 nm, 5-15 parts of white carbon black, 5-15 parts of a polyester polyether plasticizer, 2-4 parts of a vulcanizing agent and 1-3 parts of an auxiliary crosslinking agent. The acrylonitrile content of the hydrogenated butadiene-acrylonitrile rubber is 41.3-43.1%, the saturation degree of the hydrogenated butadiene-acrylonitrile rubber is 99% or more, and the Mooney viscosity ML(1+4) at a temperature of 100 DEG C of the hydrogenated butadiene-acrylonitrile rubber is 60-70. The composition material is relatively good in breaking strength, tearing strength and elastic ductility; the composition material has relatively good high-temperature resistance, low-temperature resistance and oil resistance; the composition material has a relatively long service life; and the composition material has excellent performance as an oil-seal material for an engine oil dipstick sleeve of an automobile. The preparation method of the composition material is simple in steps, easy in operation, and suitable for industrial production.

Description

technical field [0001] The invention specifically relates to a hydrogenated nitrile rubber composition material, a preparation method and an application. Background technique [0002] On automobile engines, the oil dipstick is a common control gauge used to check the oil stock in the lubricating hole. The oil dipstick is made of highly elastic metal sheet, and the oil dipstick sleeve is connected to the oil pan (there is a turning path). There is a rubber seal between the oil dipstick and its casing (set on the oil dipstick, hereinafter referred to as "oil dipstick casing oil seal") to seal the engine lubrication system. The oil seal material of the oil dipstick casing must have excellent temperature resistance (working temperature -40~160°C) and excellent oil resistance. The oil dipstick is frequently inserted and inserted during use, and there are strict requirements on sealing, pulling force, and pulling force. Therefore, it is generally required that the oil dipstick o...

Claims

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Application Information

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IPC IPC(8): C08L15/00C08L71/02C08L67/00C08K13/02C08K3/22C08K5/09C08K3/04C08K3/36B29B7/28B29B7/72
CPCB29B7/286B29B7/728C08K2201/003C08K2201/011C08K2201/014C08L15/005C08L2201/08C08L2203/18C08L2205/025C08L2205/035C08L71/02C08L67/00C08K13/02C08K2003/2296C08K2003/222C08K5/09C08K3/04C08K3/36
Inventor 黄开军
Owner JIANGSU LUOSHI DAMPING MEMBER CO LTD
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