Compound dispersing agent of carbon nanomaterial and method for preparing electric conduction polymeric composite thereof

A carbon nanomaterial and composite dispersant technology, which is applied in the treatment of dyed low molecular organic compounds, dyed high molecular organic compounds, chemical instruments and methods, etc. Effect

Active Publication Date: 2013-10-02
CHENGDU SCI & TECH DEV CENT CHINA ACAD OF ENG PHYSICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The purpose of the present invention is to overcome the defect that the high amount of surfactant affects the conductivity of carbon nanomaterials in the process of surfactant modification of carbon nanomaterials in the prior art, and provide a composite dispersant for carbon nanomaterials and its use method

Method used

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  • Compound dispersing agent of carbon nanomaterial and method for preparing electric conduction polymeric composite thereof
  • Compound dispersing agent of carbon nanomaterial and method for preparing electric conduction polymeric composite thereof

Examples

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Embodiment 1

[0044] Embodiment 1: 0.1 gram of sodium lauryl sulfate and 1 gram of graphene oxide are added in 100 grams of water, after stirring for 1 hour, then ultrasonic 15 minutes, form uniform solution, this solution is mixed with 1 gram of carbon nanotubes, Ultrasound for 30 minutes to form a uniform black suspension, add 25 grams of polystyrene particles to the above suspension, stir and mix again for 1 hour, add 100 ml of 45% hydroiodic acid solution to the suspension to make graphite oxide The carbon nanotube-graphene-polystyrene particle composite powder is obtained by chemical reduction of alkene, and the water is removed. Styrene composite material with a conductivity of 150 s / m.

Embodiment 2

[0045] Embodiment 2: 0.5 gram of sodium lauryl sulfate and 1 gram of graphene oxide are added in 100 grams of water, after stirring for 1 hour, then ultrasonic 15 minutes, form uniform solution, this solution is mixed with 1 gram of carbon nanotubes, Ultrasound for 30 minutes to form a uniform black suspension, add 10 grams of polystyrene particles to the above suspension, stir and mix again for 1 hour, add 100 ml of 45% hydroiodic acid solution to the suspension to make graphite oxide The carbon nanotube-graphene-polystyrene particle composite powder is obtained by chemical reduction of alkene, and the water is removed. Styrene composite material has an electrical conductivity of 426 s / m.

Embodiment 3

[0046] Embodiment 3: 1 gram of sodium lauryl sulfate and 1 gram of graphene oxide are added in 100 grams of water, after stirring for 1 hour, then ultrasonic 15 minutes, form uniform solution, this solution is mixed with 1 gram of nano carbon black, Ultrasound for 30 minutes to form a uniform black suspension, add 10 grams of polystyrene particles to the above suspension, stir and mix again for 1 hour, add 100 ml of 45% hydroiodic acid solution to the suspension to make graphite oxide The carbon nanotube-graphene-polystyrene particle composite powder is obtained by chemical reduction of alkene, and the water is removed. Styrene composite material with a conductivity of 120 s / m.

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Abstract

The invention discloses a compound dispersing agent of a carbon nanomaterial and a method for preparing an electric conduction polymeric composite thereof. The compound dispersing agent comprises a surface active agent and graphene oxide, wherein the mass ratio of the surface active agent to graphene oxide ranges from 0.1:1 to 9:1. The compound dispersing agent modified carbon nanomaterial is compounded with a nano-polymer, so that the polymer-carbon nanomaterial electric conduction composite with high electric conductivity can be obtained. The compound dispersing agent has a good dispersing effect on the carbon nanomaterial and can effectively reduce contact resistance of the modified carbon nanomaterial; the preparation process is easy to operate, the environment is protected, the compound dispersing agent can be widely applied to fields of preparation of various coatings such as antistatic coatings, electromagnetic shielding coatings and conductive coating and the like.

Description

technical field [0001] The invention relates to carbon nanomaterials, in particular to a composite dispersant for carbon nanomaterials and a method for preparing polymer conductive composite materials. Background technique [0002] Carbon nanomaterials mainly refer to ultrafine carbon particles smaller than 100nm on a certain scale. Common carbon nanomaterials include carbon nanotubes, nanocarbon black, nanocarbon fibers, and nanographite. These materials exhibit excellent electrical conductivity, large specific surface area, and good corrosion resistance. They can replace metal particles in some fields. Conductive inks, conductive adhesives, electrodes, and polymer conductive composite materials with antistatic and anti-electromagnetic shielding functions. However, the surface of these carbon nanomaterials is inert, hydrophobic, and has a large specific surface area. When the polymer conductive composite is prepared by solution processing, the carbon nanoparticles are very...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08K9/04C08K9/02C08K7/06C08K3/04C09C1/44C09C1/56C09C3/08C09C3/10C09C3/06C08L25/06C08L75/04C08L23/12C08L33/12C08L9/06C08L7/02C08L27/06
Inventor 唐昶宇黄家伟梅军刘焕明胡歆
Owner CHENGDU SCI & TECH DEV CENT CHINA ACAD OF ENG PHYSICS
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