Graphene-reinforced rubber and preparation method thereof

A technology for enhancing rubber and graphene, applied in the field of rubber materials, can solve the problems of affecting the process performance of materials, the decline of rubber physical properties, and the difficulty of processing, and achieve the effects of good comprehensive physical and mechanical properties, enhanced stability, and improved mechanical properties.

Inactive Publication Date: 2019-02-19
HUANGSHAN SHANGYI RUBBER & PLASTIC PRODS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Currently commonly used conductive fillers include carbon-based conductive fillers and metal-based conductive fillers. Carbon-based conductive fillers mainly include carbon black, graphite and carbon fiber, but graphite has a self-lubricating effect, which will affect the process performance of the material. Although carbon fiber has a high Electrical properties, but the processing is difficult and will lead to a decline in the physical properties of rubber; metal-based conductive fillers mainly include aluminum powder, copper powder, gold powder, etc., which have good electrical conductivity, but are more expensive than carbon-based conductive fillers

Method used

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  • Graphene-reinforced rubber and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] A graphene reinforced rubber, comprising the following components in parts by weight: 20 parts of graphene, 70 parts of rubber, 5 parts of metal powder, 0.5 part of dispersant, 0.3 part of vulcanizing agent, 2 parts of accelerator, 3 parts of activator .

[0025] Graphene has a double-layer structure or a three-layer structure; the rubber is composed of nitrile rubber and neoprene, and the mass ratio is 7:1; the metal powder is composed of silver powder and copper powder, and the mass ratio is 1:5, and the metal powder The particle size is 100nm; the dispersant is fatty acid, the vulcanizing agent is sulfur, the accelerator is TMTD, and the activator is zinc oxide.

[0026] A preparation method of graphene reinforced rubber, the method steps are as follows:

[0027] S1: Put the graphene and metal powder into the ionic liquid, and ultrasonically disperse it for 30 minutes; the ionic liquid is a quaternary ammonium salt ionic liquid, and the ultrasonic frequency is 1500 ...

Embodiment 2

[0031] A graphene reinforced rubber, comprising the following components in parts by weight: 30 parts of graphene, 80 parts of rubber, 10 parts of metal powder, 1.0 parts of dispersant, 0.9 part of vulcanizing agent, 5 parts of accelerator, 8 parts of activator .

[0032] Graphene has a double-layer structure or a three-layer structure; the rubber is composed of nitrile rubber and neoprene, and the mass ratio is 7:3; the metal powder is composed of silver powder and copper powder, and the mass ratio is 1:7, and the metal powder The particle size is 200nm; the dispersant is metal fatty acid salt, the vulcanizing agent is sulfur, the accelerator is TMTM, and the activator is zinc oxide.

[0033] A preparation method of graphene reinforced rubber, the method steps are as follows:

[0034] S1: Put the graphene and metal powder into the ionic liquid, and disperse it by ultrasonic for 40 min; the ionic liquid is imidazolium salt ionic liquid, and the ultrasonic frequency is 2000 Hz...

Embodiment 3

[0038] A graphene reinforced rubber, comprising the following components in parts by weight: 25 parts of graphene, 75 parts of rubber, 7 parts of metal powder, 0.8 part of dispersant, 0.6 part of vulcanizing agent, 4 parts of accelerator, 5 parts of activator .

[0039] Graphene has a double-layer structure or a three-layer structure; the rubber is composed of nitrile rubber and neoprene, and the mass ratio is 7:2; the metal powder is composed of silver powder and copper powder, and the mass ratio is 1:6, and the metal powder The particle size is 150nm; the dispersant is fatty acid, the vulcanizing agent is sulfur, the accelerator is TETD, and the activator is zinc oxide.

[0040] A preparation method of graphene reinforced rubber, the method steps are as follows:

[0041] S1: Put the graphene and metal powder into the ionic liquid, and disperse it by ultrasonic for 35 minutes; the ionic liquid is a quaternary ammonium salt ionic liquid, and the ultrasonic frequency is 1800 H...

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Abstract

The invention discloses graphene-reinforced rubber and a preparation method thereof. The graphene-reinforced rubber comprises, by weight, 20-30 parts of graphene, 70-80 parts of rubber, 5-10 parts ofmetal powder, 0.5-1.0 part of a dispersant, 0.3-0.9 part of a vulcanizing agent, 2-5 parts of an accelerant and 3-8 parts of an activator. The performance experiments on the graphene-reinforced rubbershow that the addition of graphene with double-layer or three-layer structure evidently improves tensile strength and elongation at break for the rubber, the improved wear resistance of the rubber isdue to rubber stability enhancement under joint action of nano metal powder and graphene, and conductivity of the rubber is better than that of materials having no graphene or metal powder, with resistance greatly decreased.

Description

technical field [0001] The invention relates to the technical field of rubber materials, in particular to a graphene-reinforced rubber and a preparation method thereof. Background technique [0002] Conductive rubber is a conductive filler dispersed in insulating rubber, which is an increasingly active branch in the field of composite conductive polymer materials. Conductive rubber has been widely used in antistatic materials, electromagnetic shielding materials, etc. due to its stable resistance time, controllable temperature coefficient of resistance and high temperature limit. Its application fields include aerospace, electronics, computers, Construction, medical care and other industries that are closely related to people's lives. [0003] Currently commonly used conductive fillers include carbon-based conductive fillers and metal-based conductive fillers. Carbon-based conductive fillers mainly include carbon black, graphite and carbon fiber, but graphite has a self-lub...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L9/02C08L11/00C08K13/02C08K3/04C08K3/08C08J5/00
CPCC08J5/005C08J2309/02C08J2411/00C08K2003/0806C08K2003/085C08K2201/001C08K2201/011
Inventor 张丽
Owner HUANGSHAN SHANGYI RUBBER & PLASTIC PRODS
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