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Conductive composite material and preparation method thereof

A technology of conductive composite materials and conductive fillers, applied in the field of composite materials, can solve the problems of poor mechanical properties, low electrical stability and high resistance, and achieve the effects of improving mechanical properties, low cost and low resistivity

Inactive Publication Date: 2019-08-23
上海宇之赫新材料测试有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there is no relatively mature conductive composite material product in China. It is mainly used in the field of antistatic materials, and there are still problems such as high resistance, low electrical stability and poor mechanical properties.

Method used

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  • Conductive composite material and preparation method thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] A conductive composite material, consisting of the following raw materials in parts by weight: 60 parts of crystalline polymer substrate, 15 parts of conductive filler, 0.02 part of metal passivator, 0.1 part of photoinitiator, 0.1 part of anti-dripping agent, radiation exchange 3 parts of joint agent, 4 parts of stabilizer, 10 parts of toughening agent, 4 parts of flame retardant.

[0027] The preparation method of the conductive composite material, the specific steps are as follows:

[0028] (1) take each raw material according to parts by weight;

[0029] (2) adding the conductive filler to nitric acid with a concentration of 0.5wt% for 30 minutes, and the reaction temperature is 60° C.;

[0030] (3) Set the temperature of the torque rheometer at 180°C and the rotating speed at 30r / min, first add the crystalline polymer substrate, metal passivator, photoinitiator, anti-dripping agent, radiation crosslinking agent, Stabilizer, toughener and flame retardant banburyin...

Embodiment 2

[0034] A conductive composite material, consisting of the following raw materials in parts by weight: 65 parts of crystalline polymer substrates, 18 parts of conductive fillers, 0.03 parts of metal passivators, 0.2 parts of photoinitiators, 0.2 parts of anti-dripping agents, radiation exchange 3.5 parts of joint agent, 5 parts of stabilizer, 11 parts of toughening agent, 4.5 parts of flame retardant.

[0035] The preparation method of the conductive composite material, the specific steps are as follows:

[0036] (1) take each raw material according to parts by weight;

[0037] (2) adding the conductive filler to hydrofluoric acid with a concentration of 0.75wt% for 40 minutes, and the reaction temperature is 80°C;

[0038] (3) Set the temperature of the torque rheometer at 180°C and the rotating speed at 30r / min, first add the crystalline polymer substrate, metal passivator, photoinitiator, anti-dripping agent, radiation crosslinking agent, Stabilizer, toughener and flame re...

Embodiment 3

[0042] A conductive composite material, consisting of the following raw materials in parts by weight: 70 parts of crystalline polymer substrates, 20 parts of conductive fillers, 0.04 parts of metal passivators, 0.3 parts of photoinitiators, 0.3 parts of anti-dripping agents, radiation exchange 4 parts of joint agent, 6 parts of stabilizer, 12 parts of toughening agent, 5 parts of flame retardant.

[0043] The preparation method of the conductive composite material, the specific steps are as follows:

[0044] (1) take each raw material according to parts by weight;

[0045] (2) adding the conductive filler to nitric acid with a concentration of 0.9wt% for 50 minutes, and the reaction temperature is 100°C;

[0046] (3) Set the temperature of the torque rheometer at 180°C and the rotating speed at 30r / min, first add the crystalline polymer substrate, metal passivator, photoinitiator, anti-dripping agent, radiation crosslinking agent, Stabilizer, toughener and flame retardant ba...

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Abstract

The invention discloses a conductive composite material. The conductive composite material comprises, by weight, 60-80 parts of a crystalline polymer base material, 15-25 parts of a conductive filler,0.02-0.06 part of a metal passivating agent, 0.1-0.5 part of a photoinitiator, 0.1-0.5 part of an anti-drip agent, 3-5 parts of a radiation crosslinker, 4-8 parts of a stabilizer, 10-15 parts of a toughening agent and 4-6 parts of a flame retardant. The core-shell structured conductive filler formed by coating a niobium-titanium alloy superconductor with conductive particles is added to the crystalline polymer base material, so the prepared conductive composite material has a low electrical resistivity; the metal passivating agent, the photoinitiator, the anti-drip agent, the radiation crosslinker, the stabilizer, the toughening agent and the flame retardant are added, so the mechanical properties of the material are improved; and acid treatment of the conductive filler increases the surface area of the conductive filler, changes the surface shape and increases contact points of the conductive filler and the crystalline polymer base material, so the conductive composite material hasthe advantages of excellent weather resistance, excellent resistance reproducibility, easiness in processing, and low cost.

Description

technical field [0001] The invention relates to the technical field of composite materials, in particular to a conductive composite material and a preparation method thereof. Background technique [0002] Conductive composite materials mainly refer to composite conductive polymer materials, which are composed of polymers and various conductive substances in a certain way. For a long time, composite conductive polymer materials have been widely used in electronics, electrical, petrochemical , machinery, photography, arms industry and other fields, used for packaging, heat preservation, sealing, integrated circuit materials, etc. [0003] Conductive composite material, as a kind of composite conductive polymer material, is prepared by adding conductive filler to the polymer composite material, which not only retains the elasticity of the matrix, but also has the conductivity of the filler. Because conductive composite materials can adjust the mechanical and electrical propert...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L101/00C08L27/18C08K9/10C08K3/08
CPCC08K2003/0881C08L101/00C08L2201/02C08L2201/08C08L27/18C08K9/10C08K3/08
Inventor 庄桂增冯斌吴伟伟谢少雄张荣仙周旭初
Owner 上海宇之赫新材料测试有限公司
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