Unlock instant, AI-driven research and patent intelligence for your innovation.

Waterborne carbon nano-tube slurry and preparation method thereof

A water-based carbon nanotube and carbon nanotube technology, applied in chemical instruments and methods, carbon compounds, inorganic chemistry, etc., can solve the problem of carbon nanotube slurry settlement, aggregation, slurry stability and other properties that are difficult to meet customer requirements, etc. problem, to achieve good storage stability

Active Publication Date: 2019-03-12
SUZHOU SUNMUN TECH CO LTD
View PDF10 Cites 9 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The water-based carbon nanotube slurry prepared by the existing technology still has certain defects, such as the carbon nanotube slurry will have problems such as sedimentation and aggregation in a short period of time, and the performance of the slurry stability is difficult to meet customer requirements

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Waterborne carbon nano-tube slurry and preparation method thereof
  • Waterborne carbon nano-tube slurry and preparation method thereof
  • Waterborne carbon nano-tube slurry and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0038] The preparation method that embodiment and comparative example adopt is:

[0039] a) Reserving 10-20% of the total mass of deionized water, mixing and dispersing the remaining deionized water, dispersant A, dispersant B, wetting agent, and moisturizing agent in disperser 1 to obtain a premixed solution;

[0040] b) Add carbon nanotubes to the premixed solution obtained in step a) for dispersion, use disperser 1 to disperse at a speed higher than 200 rpm for no less than 30 minutes, and add the premixed solution in step a) during the dispersion process Stay deionized water to obtain pre-dispersed carbon nanotube slurry;

[0041] c) The first delivery pump 2 grinds and disperses the pre-dispersed carbon nanotube slurry obtained in step b) in the grinder 3 for 3-10 times, and the second delivery pump 4 sends it to the ultrasonic dispersion device 5 for ultrasonic dispersion treatment After 0.5-2 hours to obtain the water-based carbon nanotube slurry, the third delivery pu...

Embodiment 1

[0057] Reserve 10 parts of deionized water, disperse 68.82 parts of deionized water, 3 parts of dispersant A1, 1.8 parts of dispersant B1, 0.18 parts of phosphatidylcholine, and 10 parts of ethylene glycol in a disperser to obtain a premixed solution; Add 6 parts of multi-walled carbon nanotubes into the premixed solution for dispersion, use a disperser to disperse for 40 minutes at a speed of 600 rpm, and add 10 parts of deionized water reserved during the dispersion process to obtain pre-dispersed carbon nanotubes Tube slurry; grind and disperse the pre-dispersed carbon nanotube slurry in a grinder for 8 times, add 0.2 parts of polysiloxane ether copolymer during the grinding process, and then perform ultrasonic dispersion treatment for 1 hour to obtain water-based carbon nanotubes slurry.

Embodiment 2

[0059] Reserve 15 parts of deionized water, disperse 78.2 parts of deionized water, 1.6 parts of dispersant A2, 1 part of dispersant B2, 0.1 part of dodecyl glucoside, and 2 parts of glycerol in a disperser to obtain a premixed liquid ; Add 2 parts of single-walled carbon nanotubes into the premixed solution for dispersion, use a disperser to disperse for 50 minutes at a speed of 500 rpm, and add 15 parts of deionized water reserved during the dispersion process to obtain pre-dispersed carbon Nanotube slurry: grind and disperse the pre-dispersed carbon nanotube slurry in a grinder for 3 times, add 0.1 part of polyether compound during the grinding process, and then perform ultrasonic dispersion treatment for 2 hours to obtain an aqueous carbon nanotube slurry.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses waterborne carbon nano-tube slurry and a preparation method thereof. The preparation method includes the steps: a) reserving deionized water, enabling the reserved deionized water to account for 10-20% of the total weight of the deionized water, mixing and dispersing the rest deionized water, a dispersing agent A, a dispersing agent B, a wetting agent and a moisturizing agent in a dispersion machine to obtain premixed solution; b) adding carbon nano-tubes into the premixed solution acquired in the step a) to disperse mixture by the dispersion machine for not lower than30 minutes at the speed of higher than 200 revolutions / minute, and adding the deionized water reserved in the step a) in the dispersing process to obtain pre-dispersion carbon nano-tube slurry; c) grinding and dispersing the pre-dispersion carbon nano-tube slurry acquired in the step b) in a grinder 3-10 times, and ultrasonically dispersing mixture for 0.5-2 hours to obtain the waterborne carbon nano-tube slurry.

Description

technical field [0001] The invention relates to a water-based carbon nanotube slurry, which belongs to the field of fine chemical industry. Background technique [0002] Carbon nanotubes have attracted extensive attention due to their unique nanostructure and excellent mechanical, electrical, magnetic and optical properties. However, carbon nanotubes have few surface defects, lack active groups, and have low dispersibility in water and solvents; in addition, the carbon atoms in carbon nanotubes are mainly composed of SP 2 The hybridization method forms highly delocalized large π bonds, resulting in a strong van der Waals force between carbon nanotubes. At the same time, the specific surface area and long-diameter ratio of carbon nanotubes are large, which seriously affects the dispersion in solvents, especially in Dispersion in water is poor. In general, carbon nanotubes are intertwined with each other in the form of aggregates, which affects the physical properties of car...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): C01B32/174B01F13/10B01F11/02
CPCC01B32/174B01F31/83B01F33/831B01F33/83613
Inventor 杜长森梅成国吕品田壮
Owner SUZHOU SUNMUN TECH CO LTD