Antistatic agent made from silver nanowire and functional carbon nano tube (CNT) and preparation method

A carbon nanotube and antistatic agent technology, applied in the field of silver nanowire functionalized carbon nanotube antistatic agent, can solve the problems of reducing the addition amount of carbon nanotubes, poor dispersibility, influence, etc., to improve the synergistic enhancement effect, overcome the The effect of high contact resistance

Active Publication Date: 2013-02-20
BEIJING UNIV OF CHEM TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The conductivity of carbon nanotubes is similar to that of graphite, and its outstanding aspect ratio makes it more conducive to the formation of a chain network structure in the continuous phase of the matrix than conductive carbon black when added to the matrix, but its main disadvantage is that it is in the polymer The dispersion in the matrix is ​​poor, and organic modification of the surface is required to improve the surface polarity, improve the dispersion and int

Method used

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  • Antistatic agent made from silver nanowire and functional carbon nano tube (CNT) and preparation method
  • Antistatic agent made from silver nanowire and functional carbon nano tube (CNT) and preparation method

Examples

Experimental program
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Example Embodiment

[0015] Example 1

[0016] The first step: Disperse the acidified carbon nanotubes into N,N dimethylformamide, ultrasonically for 2 hours, then add mercaptoacetic acid and a catalytic equivalent of 4-dimethylaminopyridine, react at 85°C for 24 hours, and then suction, filter and dry to obtain mercapto groups. Functionalized carbon nanotubes, wherein acidified carbon nanotubes: N,N dimethylformamide: thioglycolic acid = 1 g: 150 ml: 0.1 g.

[0017] The second step: ultrasonically disperse the sulfhydryl carbon nanotubes into ethylene glycol, add platinum ion concentration of 1mg / L platinous chloride in ethylene glycol solution, heat up to 150°C and react for 10 minutes to obtain platinum seed crystals. Carbon nanotubes, sulfhydryl carbon nanotubes: ethylene glycol: platinous chloride in ethylene glycol solution = 100mg: 100ml: 5ml.

[0018] The third step: at the end of the previous step, add 0.1 mol / L silver nitrate and 0.6 mol / L polyvinylpyrrolidone in ethylene glycol solution, rais...

Example Embodiment

[0019] Example 2

[0020] Step 1: Disperse 1g of acidified carbon nanotubes into 150ml of N,N dimethylformamide and sonicate for 2h, then add 1g of p-mercaptobenzoic acid and a catalytic equivalent of 4-dimethylaminopyridine, react at 85°C for 24h, then pump Filtering, washing and drying to obtain sulfhydryl functionalized carbon nanotubes.

[0021] The second step: ultrasonically disperse 100mg of sulfhydryl carbon nanotubes into 100ml of propylene glycol, add 10ml of platinum ion concentration of 1mg / L platinum chloride in propylene glycol solution, heat up to 150℃ and react for 10min to obtain platinum seeded carbon nanotube.

[0022] The third step: at the end of the previous step, add 10ml each of 0.1mol / L silver nitrate and 0.6mol / L polyvinylpyrrolidone in propylene glycol solution, heat up to 160℃, react for 2h, after the reaction is finished, centrifuge, wash and dry to obtain carbon nano A composite of silver nanowires grown in situ.

Example Embodiment

[0023] Example 3

[0024] Step 1: Disperse 1g of acidified carbon nanotubes into 150ml of N,N dimethylformamide and sonicate for 2h, then add 0.1g of mercaptoethylamine, react for 24h at room temperature, then suction, filter and dry to obtain mercapto-functionalized carbon nanotubes tube.

[0025] The second step: ultrasonically disperse 100mg of sulfhydryl carbon nanotubes into 100ml of ethylene glycol, add 10ml of chloroplatinic acid glycol solution with a platinum ion concentration of 1mg / L, and raise the temperature to 150℃ to react for 10min to obtain supported platinum crystals Kinds of carbon nanotubes.

[0026] The third step: At the end of the previous step, add 10 ml of 0.1 mol / L silver nitrate and 1 mol / L sodium lauryl sulfate in propylene glycol solutions, respectively, raise the temperature to 180°C, react for 1 hour, and centrifuge, wash and dry after the reaction. A composite of silver nanowires grown in situ of carbon nanotubes.

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Abstract

The invention provides an antistatic agent made from a silver nanowire and a functional CNT and a preparation method, and belongs to the technical field of antistatic agents. The silver nanowire grows in situ on the surface-thiolated CNT through a platinum seed crystal. The method includes that thiolation modification on the surface of the CNT is performed, the platinum seed crystal is anchored on the surface of the CNT according to coordination of sulfydryl, and the silver nanowire grows in situ through the platinum seed crystal on the surface of the CNT to prepare the CNT and silver nanowire composite antistatic agent. The antistatic agent is small in amount, and the defect of phase splitting of different components caused by blending modification of the CNT and the silver nanowire is overcome.

Description

technical field [0001] The invention relates to a silver nanowire functionalized carbon nanotube antistatic agent and a method for in-situ growth of silver nanowires by anchoring platinum seeds on the surface of the carbon nanotube, belonging to the technical field of antistatic agents. Background technique [0002] In recent years, with the wide application of polymer materials in various fields, more and more requirements have been put forward for the functionality of polymer materials. Among them, general engineering materials such as polyimide (PI), polycarbonate (PC ), polyetherimide (PEI), polyetheretherketone (PEEK), due to their excellent mechanical properties and heat resistance, are widely used in medical equipment, chemical equipment, electronic devices and automated parts. However, as a poor conductor of electricity, when the material is rubbed or the charge generated by the electronic device in the use environment cannot be leaked in time, it will generate stati...

Claims

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Application Information

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IPC IPC(8): C08K9/04C08K9/02C08K7/00C08K3/04B22F9/24B82Y40/00C01B31/02C01B32/168
Inventor 付海杜中杰张晨邹威励杭泉
Owner BEIJING UNIV OF CHEM TECH
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