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Graphene modified nitrile rubber and preparation method thereof

A technology of graphene modification and nitrile rubber, which is applied in the field of graphene rubber composite materials, can solve the problems of poor high and low temperature resistance of nitrile rubber, and achieve the effects of good heat resistance, slow vulcanization speed and stable performance

Active Publication Date: 2019-10-18
石家庄贝克密封科技股份有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The present invention proposes a graphene-modified nitrile rubber and a preparation method thereof, which solves the problem of poor high and low temperature resistance of nitrile rubber in the prior art

Method used

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  • Graphene modified nitrile rubber and preparation method thereof
  • Graphene modified nitrile rubber and preparation method thereof
  • Graphene modified nitrile rubber and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0050] A kind of graphene modified nitrile rubber, comprises the component of following parts by weight:

[0051] 80 parts of nitrile rubber, 20 parts of modified graphene oxide-carboxylated nitrile rubber masterbatch, 1.5 parts of vulcanizing agent, 1.5 parts of vulcanization accelerator, 3 parts of vulcanization activator, 2 parts of plasticizer, 1 part of anti-aging agent, filler 27 copies,

[0052] Among them, the nitrile rubber is carboxylated butyl rubber, the combined acrylonitrile content in the carboxylated nitrile rubber is 33-40%, and the carboxyl content is 3-5%; the modified graphene oxide-carboxylated nitrile rubber masterbatch is modified oxidation Graphene-carboxylated nitrile rubber masterbatch Ⅰ; the vulcanizing agent is dicumyl peroxide; the vulcanization accelerator is 1 part of N-cyclohexane-2-benzothiazyl sulfenamide and dimethyl distearate 0.5 parts of zinc thiocarbamate; the vulcanization activator is zinc oxide; the plasticizer is dioctyl adipate; the...

Embodiment 2

[0061] A kind of graphene modified nitrile rubber, comprises the component of following parts by weight:

[0062] 85 parts of nitrile rubber, 15 parts of modified graphene oxide-carboxylated nitrile rubber masterbatch, 1.7 parts of vulcanizing agent, 2 parts of vulcanization accelerator, 3 parts of vulcanization activator, 3 parts of plasticizer, 1.5 parts of anti-aging agent, filler 30 servings,

[0063] Among them, the nitrile rubber is carboxylated butyl rubber, the combined acrylonitrile content in the carboxylated nitrile rubber is 33-40%, and the carboxyl content is 3-5%; the modified graphene oxide-carboxylated nitrile rubber masterbatch is modified oxidation Graphene-carboxylated nitrile rubber masterbatch II; the vulcanizing agent is benzoyl peroxide; the vulcanization accelerator is 1.2 parts of N-oxydiethylene-2-benzothiazole sulfenamide and diethyl dithio Zinc carbamate 0.8 part; vulcanization activator is zinc oxide; plasticizer is dioctyl azelate; anti-aging age...

Embodiment 3

[0072] A kind of graphene modified nitrile rubber, comprises the component of following parts by weight:

[0073] 85 parts of nitrile rubber, 15 parts of modified graphene oxide-carboxylated nitrile rubber masterbatch, 1.7 parts of vulcanizing agent, 2 parts of vulcanization accelerator, 3 parts of vulcanization activator, 3 parts of plasticizer, 1.5 parts of anti-aging agent, filler 30 servings,

[0074] Among them, the nitrile rubber is carboxylated butyl rubber, the combined acrylonitrile content in the carboxylated nitrile rubber is 33-40%, and the carboxyl content is 3-5%; the modified graphene oxide-carboxylated nitrile rubber masterbatch is modified oxidation Graphene-carboxylated nitrile rubber masterbatch Ⅰ; the vulcanizing agent is dicumyl peroxide; the vulcanization accelerator is 1.2 parts of N-oxydiethylene-2-benzothiazole sulfenamide and diethyl disulfide 0.8 parts of zinc carbamate; the vulcanization activator is zinc oxide; the plasticizer is dioctyl adipate; ...

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Abstract

The invention belongs to the technical field of graphene rubber composite materials, and provides a graphene modified nitrile rubber and a preparation method thereof. The graphene modified nitrile rubber is prepared from the following components in parts by weight: 70-90 parts of a nitrile rubber, 10-30 parts of a modified graphene oxide-carboxyl nitrile rubber master batch, 1.5-2 parts of a vulcanizing agent, 0.5-2.0 parts of a vulcanizing accelerator, 3-5 parts of a vulcanizing activator, 1-3 parts of a plasticizer, 1-2 parts of an antioxidant and 20-30 parts of fillers; and the modified graphene oxide-carboxyl nitrile rubber master batch is prepared from the modified graphene oxide and further prepared from carboxyl nitrile rubber latex, wherein mercapto-siloxane after hydrolysis reactswith the graphene oxide by being subjected to dehydration synthesis, and the modified graphene oxide is obtained. Through the technical scheme, the problem of poor high and low temperature resistanceof the nitrile rubber in the prior art is solved.

Description

technical field [0001] The invention belongs to the technical field of graphene rubber composite materials, and relates to a graphene modified nitrile rubber and a preparation method thereof. Background technique [0002] Nitrile rubber is a copolymer obtained by emulsion polymerization of butadiene and acrylonitrile. Due to the introduction of highly polar cyano groups into the molecular chain, it is known for its excellent oil resistance. As a kind of oil-resistant rubber, nitrile rubber is widely used in the manufacture of oil-resistant products such as hoses, capsules, sealing products, and gaskets. As a seal, vulcanized nitrile rubber will face various harsh application environments, so it is necessary for nitrile rubber to have good adaptability to various environments. Nitrile rubber is non-crystalline rubber, but due to the presence of polar cyano groups, it has poor cold resistance, which leads to a sharp slowdown of the relaxation process at low temperatures, incr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L9/02C08L13/00C08K13/06C08K9/06C08K3/04C08K5/14C08K5/435C08K5/39
CPCC08L9/02C08L2201/08C08L13/00C08K13/06C08K9/06C08K3/042C08K5/14C08K3/04C08K5/435C08K5/39
Inventor 郄旭东赵雄燕闫思梦王鑫张晓斌
Owner 石家庄贝克密封科技股份有限公司
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