A kind of conductive rubber particle and its production method and application

A technology of conductive rubber particles and rubber particles, which is applied in the preparation of antistatic materials and in the field of conductivity, and can solve the problems of easy aggregation, uneven dispersion and difficult processing of nanoparticles

Active Publication Date: 2018-04-10
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to improve the problems of infusible and insoluble intrinsic conductive polymers, difficult processing, strong intermolecular interactions, easy aggregation of nanoparticles, and uneven dispersion in the polymer matrix, the invention provides a new type of conductive rubber particles, and Provides a method for preparing stable conductive rubber emulsion and conductive nano-rubber particles with core-shell structure by in-situ oxidative polymerization of intrinsic conductive polymer monomer in radiation crosslinked rubber emulsion

Method used

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  • A kind of conductive rubber particle and its production method and application
  • A kind of conductive rubber particle and its production method and application
  • A kind of conductive rubber particle and its production method and application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0055] Take 30 g of radiation cross-linked nitrile latex and add it into a reactor equipped with mechanical stirring, and add pyrrole monomer and start to swell for 1 hour while stirring. Then 50ml of polyvinylpyrrolidone (K30, Xilong Chemical Co., Ltd.) aqueous solution was added to the nitrile latex, and after stirring for 10 minutes, ferric chloride and p-toluenesulfonic acid aqueous solution were simultaneously added dropwise. After the dropwise addition is completed, the reaction system is cooled in an ice-water bath, and then 30wt% hydrogen peroxide solution is added to start the reaction to ensure that pyrrole, polyvinylpyrrolidone (repeating unit), ferric chloride, p-toluenesulfonic acid and peroxide The concentrations of hydrogen were 0.066M, 0.057M, 0.0001M, 0.033M and 0.079M, respectively. After 48 hours of reaction, stop to obtain nitrile / polypyrrole conductive rubber emulsion. The z-average particle diameter of the nitrile / polypyrrole conductive rubber latex part...

Embodiment 2

[0057] Method is the same as embodiment 1, but the nitrile latex in embodiment 1 is replaced by carboxylated nitrile latex, and in the reaction system, pyrrole, polyvinylpyrrolidone (repeating unit), ferric chloride, p-toluenesulfonic acid and hydrogen peroxide The concentrations are 0.066M, 0.057M, 0.0001M, 0.0132M and 0.132M, respectively. After 48 hours of reaction, carboxylated nitrile / polypyrrole conductive rubber emulsion was obtained. The z-average particle diameter of the carboxylated nitrile / polypyrrole conductive rubber latex particles is 180nm. The emulsion is spray-dried to obtain carboxylated nitrile / polypyrrole conductive rubber nanoparticles. The surface resistance of the product is about 8.9×10 5 Ω / □.

Embodiment 3

[0059] The method is the same as in Example 1, but the concentrations of pyrrole, polyvinylpyrrolidone (repeating unit), ferric chloride, p-toluenesulfonic acid and hydrogen peroxide in the reaction system are respectively 0.066M, 0.057M, 0.0001M, 0.132M and 0.033 M, and the reaction was carried out at 23°C instead of in an ice-water bath, and the reaction was stopped after 32 hours to obtain a nitrile / polypyrrole conductive rubber emulsion. The z-average particle diameter of the nitrile / polypyrrole conductive rubber latex particles is 65nm. The emulsion is spray-dried to obtain nitrile / polypyrrole conductive rubber nanoparticles. The surface resistance of the product is about 5.6×10 3 Ω / □.

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Abstract

The invention relates to a conductive rubber particle, which comprises rubber particle and a conductive macromolecule coated on the surface of the rubber particle, and the surface resistance of the conductive rubber particle is (1.0-8900)×102Ω / □. The particle size of the conductive rubber particles is 1-500nm, preferably 50-200nm. The invention also provides a production method and application of the conductive rubber particles.

Description

technical field [0001] The invention belongs to the field of preparation of conductive and antistatic materials, and in particular relates to a preparation method of conductive rubber emulsion and conductive rubber nanoparticles. Background technique [0002] With the continuous expansion of the application field of polymer materials and the advancement of science and technology, the requirements for the antistatic and anti-electromagnetic shielding properties of polymer materials during use are also increasing. At present, the industry mainly prepares conductive polymer composite materials by blending conductive fillers and polymer matrix. Common conductive fillers include metals, metal oxides, carbon materials such as graphite, carbon black, and carbon fibers, as well as new nanofillers such as carbon nanotubes and graphene, and intrinsically conductive polymers. These fillers have their own advantages and disadvantages, and have been applied and studied in different dire...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L9/02C08L13/00C08L79/04C08L79/02C08L23/08C08L51/06C08G73/06C08G73/02
Inventor 乔金樑张江茹张晓红戚桂村宋志海蔡传伦赖金梅李秉海王亚王湘高建明张红彬蒋海斌茹越何谷
Owner CHINA PETROLEUM & CHEM CORP
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