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

A kind of preparation method of hydrophilic carbon nanotube film

A technology of carbon nanotube film and hydrophilicity, which is applied in the direction of carbon nanotubes and nanocarbons, can solve the problems of large dispersion of carbon nanotube film performance, weak interaction, and low hydrophilicity, and is suitable for industrialization Effects of production, improvement of reactivity, and improvement of hydrophilicity

Active Publication Date: 2019-11-15
SOUTH CENTRAL UNIVERSITY FOR NATIONALITIES
View PDF5 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the carbon nanotube film composed of Sp2 and Sp3 hybridized chemical bonds has low polarity and weak interaction, and has low interface strength and weak performance when combined with other materials. It needs to be modified and activated to increase surface polarity and reduce Contact Angle and Improving Hydrophilicity
[0003] Traditional nitrogen doping includes the use of high-temperature thermal doping of carbon nanotube films in the later stage and doping with strong acid or nitrogen-containing organic compounds. The doping structure of these two methods is difficult to control and uneven, and the prepared nitrogen-doped carbon nanotubes The dispersion of film properties is large, and the hydrophilicity is still low, making it difficult to use on a large scale

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
  • A kind of preparation method of hydrophilic carbon nanotube film

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] Embodiment 1 A kind of preparation method of hydrophilic carbon nanotube film, its steps are as follows:

[0039] (1) 50g methanol, 45g acetone, 1.0g hydroxyl-terminated hyperbranched polymer HyPerH103, 1.0g ferrocene, 1.0g thiophene (1-thia-2,4-cyclopentadiene) and 2.5g amino-terminated hyperbranched The polymer HyPerN101 was mixed uniformly to obtain a mixed solution.

[0040] (2) Use nitrogen with a flow rate of 50L / h to exhaust the air in the quartz tube with an inner diameter of 12cm and a length of 150cm for about 20 minutes. After ensuring that the air is exhausted, turn off the nitrogen, and then heat to control the temperature in the quartz tube at 900°C about.

[0041] (3) then pass into the hydrogen of 50L / h flow in the quartz tube of step (2), simultaneously with the mixed solution of step (1) with the speed injection of 5mL / h in the quartz tube and carry out carbonization reaction with liquid feeding pump, The obtained carbon nanotube aerogel enters the c...

Embodiment 2

[0042] Embodiment 2 A kind of preparation method of hydrophilic carbon nanotube film, its steps are as follows:

[0043](1) Mix 60g propanol, 35g methyl ethyl ketone, 0.5g terminal hydroxyl hyperbranched polymer HyPerH203, 1.5g ferrocene, 1.0g thiophene (1-thia-2,4-cyclopentadiene) and 0.5g terminal The amino hyperbranched polymer HyPerN103 is mixed uniformly to obtain a mixed solution.

[0044] (2) Use nitrogen with a flow rate of 75L / h to exhaust the air in the quartz tube with an inner diameter of 20cm and a length of 180cm for about 20 minutes. After ensuring that the air is exhausted, turn off the nitrogen, and then heat to control the temperature in the quartz tube at 1000°C about.

[0045] (3) then step (2) passes into the hydrogen gas of 100L / h flow in the quartz tube, simultaneously with liquid delivery pump, mixed solution is injected in the quartz tube with the speed of 15mL / h and carries out carbonization reaction, the carbon nanotube obtained The airgel enters t...

Embodiment 3

[0046] Embodiment 3 A kind of preparation method of hydrophilic carbon nanotube film, its steps are as follows:

[0047] (1) 70g cyclohexanol, 45g methyl propyl ketone, 2.0g hydroxyl-terminated hyperbranched polymer HyPerH402, 2.5g ferrocene, 1.0g thiophene (1-thia-2,4-cyclopentadiene ) and 5.0g amino-terminated hyperbranched polymer HyPerN102 are mixed uniformly to obtain a mixed solution.

[0048] (2) Use nitrogen with a flow rate of 100L / h to exhaust the air in the quartz tube with an inner diameter of 15cm and a length of 250cm for about 20 minutes. After ensuring that the air is exhausted, turn off the nitrogen, and then heat to control the temperature in the quartz tube at 1100°C about.

[0049] (3) then pass into the hydrogen of 200L / h flow in the quartz tube of step (2), simultaneously with the mixed solution of step (1) with the rate injection quartz tube of 20mL / h and carry out carbonization reaction with liquid delivery pump, The obtained carbon nanotube airgel en...

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

PropertyMeasurementUnit
hydroxyl valueaaaaaaaaaa
thicknessaaaaaaaaaa
lengthaaaaaaaaaa
Login to View More

Abstract

The invention belongs to the technical field of carbon nanometer tubes, and particularly discloses a preparing method for a hydrophilic carbon nanometer tube film. The preparing method includes the steps that alkyl alcohol, alkyl ketone, terminal-hydroxyl-group hyperbranched polymer, ferrocene, thiophene and amino-end-group hyperbranched polymer are mixed to be even in a certain proportion, and mixed liquid is obtained; at the atmosphere of 900 DEG C to 1,200 DEG C and carrier gas (hydrogen or hydrogen-nitrogen mixed gas), the mixed liquid is injected into a tubular reactor at speed of 5 mL / hto 20 mL / h and carbonized, and the product carbon nanometer tube aerogel enters a conveying belt of a collecting box under carrying of hydrogen flow; after the carbon nanometer tube aerogel is collected for a certain time through the conveying belt, the mixed liquid is stopped to be injected, the carrier gas is closed, nitrogen is introduced, and after the temperature of the tubular reactor is reduced to the room temperature, the nitrogen is closed. The film is taken down and compacted, and the hydrophilic carbon nanometer tube film is obtained. The hydrophilic carbon nanometer tube film is simple in technology, and the hydrophilic carbon nanometer tube film prepared with the method can be hopefully used for the field of composite materials, conductive materials and the like.

Description

technical field [0001] The invention relates to the technical field of carbon nanotube films, and specifically discloses a method for preparing a hydrophilic carbon nanotube film. Background technique [0002] The preparation methods of carbon nanotube films mainly include array method and floating method. The array method is to pull out a carbon nanotube film from a carbon nanotube array. In 2002, Fan Shoushan's research group reported in Nature (Nature, 2002, 419, 6909, 801) that a multi-walled carbon nanotube film was pulled out from a carbon nanotube array. The floating method is to input the reaction carbon source into the high-temperature reaction gas flow to grow carbon nanotubes, and the carbon nanotubes are assembled into a carbon tube film on the reactor wall or in the gas flow. 276-278) reported that the ethanol reaction solution containing ferrocene and thiophene was injected into a high-temperature hydrogen flow to synthesize continuous carbon nanotube aggregat...

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 Patents(China)
IPC IPC(8): C01B32/16
CPCC01B32/16
Inventor 张道洪段骞梁潇李婷王秋凡苗孟河
Owner SOUTH CENTRAL UNIVERSITY FOR NATIONALITIES