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CNT (carbon nano tube) dispersant and preparation method thereof

A technology of carbon nanotubes and dispersants, applied in the field of carbon nanotubes, can solve problems such as complex production process, limited application conditions, and complex use methods, and achieve the effects of simple preparation process, good dispersion effect, and controllable structure

Active Publication Date: 2018-06-01
瑞固新能(上海)材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For example, CN 101773801A, Shanghai Institute of Ceramics, Chinese Academy of Sciences, proposed to disperse carbon nanotubes with biomolecules, which can realize the dispersion of CNTs without destroying the structure of carbon nanotubes. However, the production process of this type of bio-based dispersant is complicated, and not readily available, expensive
Jiangnan University CN 106587013A designed a switch-type dispersant, which can disperse CNTs in aqueous solution, but the dispersant needs to be fed with nitrogen, air or heated to decompose during use, the method of use is complicated, and it can only be dispersed in aqueous solution , the application conditions are more limited

Method used

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  • CNT (carbon nano tube) dispersant and preparation method thereof
  • CNT (carbon nano tube) dispersant and preparation method thereof
  • CNT (carbon nano tube) dispersant and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] Weigh 1.2g of azobisisobutyronitrile and dissolve in 60g of tetrahydrofuran to make mixed solution F, weigh 108.6g of A1, 11.1g of N-vinylpyrrolidone, and 1.2g of isooctyl thioglycolate and dissolve in 60g of tetrahydrofuran to make mixed solution G , Add the mixed solution G dropwise to the mixed solution F under the condition of 80°C and stirring for 2 hours; after the dropwise addition is complete, keep warm for 1 hour to prepare the dispersant.

Embodiment 2

[0038] Weigh 0.8g dibenzoyl peroxide and dissolve in 82gN-methylpyrrolidone to make mixed solution F, weigh 108.6gA2, 55.5g N-vinylpyrrolidone, 0.5g isooctyl mercaptoacetate and dissolve in 82gN-methylpyrrolidone Prepare the mixed solution G in pyrrolidone, add the mixed solution G dropwise to the mixed solution F under the condition of stirring at 100°C for 1 hour; after the dropwise addition is complete, keep warm for 3 hours to prepare the dispersant.

Embodiment 3

[0040] Take by weighing 2.4g dibenzoyl peroxide and dissolve in 79g N-methylpyrrolidone to make mixed solution F, weigh 101.8gA3, 55.5g N-vinylpyrrolidone, 3.1g dodecyl mercaptan and dissolve in 79gN-methylpyrrolidone The mixed solution G was prepared in the base pyrrolidone, and the mixed solution G was added dropwise to the mixed solution F under the condition of stirring at 100 ℃, and the dropping time was 4 hours; after the dropping was completed, the temperature was kept for 0.5 hours to prepare the dispersant.

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Abstract

The invention discloses a CNT (carbon nano tube) dispersant and a preparation method thereof. The dispersant is prepared from N-vinylpyrrolidone and unsaturated macromonomers A through polymerization.The CNT dispersant has the advantages of being good in dispersion effect, excellent in stability and controllable in structure, can be applied to the field of dispersion of the CNT and can also be used as the dispersant, a suspension and a stabilizer of other fields, and the preparation process is simple.

Description

technical field [0001] The present invention relates to the field of carbon nanotubes, particularly a dispersant for dispersing carbon nanotubes; the present invention also relates to a preparation method of the aforementioned carbon nanotube dispersant. Background technique [0002] Since the discovery of carbon nanotubes (CNTs) in 1991, they have been widely concerned by scientists for their excellent chemical properties, mechanical properties, thermal properties, optical properties, and electrical properties. However, carbon nanotubes are tubular nanomaterials with a large aspect ratio and specific surface area. At the same time, there is a strong van der Waals force between CNTs, which makes them prone to entanglement and agglomeration. Therefore, it is difficult to disperse in the matrix, and serious restrict the performance of the product. Therefore, how to uniformly and stably disperse CNTs is a key problem that needs to be solved urgently in order to bring out the e...

Claims

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Application Information

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IPC IPC(8): C08F283/06C08F283/01C08F283/04C08F226/10C01B32/174
CPCC08F283/01C08F283/045C08F283/065C08F226/10
Inventor 景希玮徐健王绍华冯中军
Owner 瑞固新能(上海)材料科技有限公司