A kind of preparation method of carbon nanotube electromagnetic shielding paper

An electromagnetic shielding and carbon nanotube technology is applied in the field of preparation of carbon nanotube electromagnetic shielding paper, which can solve the problems of poor performance of carbon nanometer paper, and achieve the effects of good electromagnetic shielding performance, excellent electrical performance and simple process

Active Publication Date: 2019-03-26
DALIAN UNIV OF TECH +1
View PDF4 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to solve the problem of poor performance of carbon nano paper in the prior art, the present invention provides a carbon nanotube electromagnetic shielding paper with good mechanical properties and electromagnetic shielding properties at the same time

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 carbon nanotube electromagnetic shielding paper
  • A kind of preparation method of carbon nanotube electromagnetic shielding paper
  • A kind of preparation method of carbon nanotube electromagnetic shielding paper

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] S1. Weigh 100 mg of multi-walled carbon nanotubes, put them into a mortar, add an appropriate amount of ethanol as a solvent, and grind by hand for about 20-30 minutes until there are no obvious granular multi-walled carbon nanotubes.

[0029] S2. transfer the ground multi-walled carbon nanotubes into a beaker, add 200mL ethanol, 2mL of dispersant polyethylene glycol octyl phenyl ether and 100mg MFC, and prepare the multi-walled carbon nanotubes into 0.5g / L mixture.

[0030] S3. Put the multi-walled carbon nanotube / MFC mixed solution into an ultrasonic dispersing machine for ultrasonic dispersion for 1 hour (the effective time is 30 minutes), so that the mixed solution is fully dispersed in ethanol.

[0031] S4. Connect the dispersed mixed solution to a Buchner funnel for suction filtration with a circulating water vacuum pump, take out the filtered filter paper, and peel off the carbon nano-paper from the filter paper to separate it after drying. Clean the peeled carb...

Embodiment 2

[0033] S1. Weigh 100 mg of multi-walled carbon nanotubes, put them into a mortar, add an appropriate amount of ethanol as a solvent, and grind by hand for about 20-30 minutes until there are no obvious granular carbon nanotubes.

[0034] S2. transfer the ground multi-walled carbon nanotubes into the beaker, add 200mL ethanol, 2mL of dispersant (polyethylene glycol octyl phenyl ether), 50mg MFC, the multi-walled carbon nanotubes are formulated into 0.5g / L solution.

[0035] S3. Put the multi-walled carbon nanotubes into an ultrasonic dispersion machine for ultrasonic dispersion for 1 hour (the effective time is 30 minutes), so that the carbon nanotubes are fully dispersed in ethanol.

[0036] S4. Connect the dispersed multi-walled carbon nanotubes to a Buchner funnel for suction filtration with a circulating water vacuum pump. The filter paper that has been filtered by suction is taken out, and after drying, the carbon nano-paper is peeled off from the filter paper to separat...

Embodiment 3

[0038] S1. Weigh 100 mg of multi-walled carbon nanotubes, put them into a mortar, add an appropriate amount of ethanol as a solvent, and grind by hand for about 20-30 minutes until there are no obvious granular carbon nanotubes.

[0039] S2. transfer the ground multi-walled carbon nanotubes into the beaker, add 200mL ethanol, 2mL dispersant (polyethylene glycol octyl phenyl ether), 20mg MFC, the multi-walled carbon nanotubes are formulated into 0.5g / L solution.

[0040] S3. Put the multi-walled carbon nanotubes into an ultrasonic dispersion machine for ultrasonic dispersion for 1 hour (the effective time is 30 minutes), so that the carbon nanotubes are fully dispersed in ethanol.

[0041] S4. Connect the dispersed multi-walled carbon nanotubes to a Buchner funnel for suction filtration with a circulating water vacuum pump. The filter paper that has been filtered by suction is taken out, and after drying, the carbon nano-paper is peeled off from the filter paper to separate i...

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
lengthaaaaaaaaaa
diameteraaaaaaaaaa
Login to View More

Abstract

The invention belongs to the field of carbon nano-materials, and particularly relates to a preparation method for carbon nano-tube electromagnetic shielding paper. The preparation method comprises the following steps: preparing a mixed solution of MFC (Microfibrillated Cellulose) / multi-walled carbon nano-tubes in a reasonable proportion; preparing the carbon nano-tube electromagnetic shielding paper through an ultrasonic dispersing and suspension liquid filtering method. According to the preparation method for the carbon nano-tube electromagnetic shielding paper, a preparation process of carbon nano-paper is improved at the aim of solving the problems of poor carbon nano-paper mechanical properties and complicated process in the prior art; the carbon nano-tube electromagnetic shielding paper with good electromagnetic shielding performance and electrical properties and excellent mechanical properties is obtained by adopting suitable process conditions. The preparation method is simple in process and low in cost, and large scale production is realized.

Description

technical field [0001] The invention belongs to the field of carbon nanometer materials, in particular to a preparation method of carbon nanotube electromagnetic shielding paper. Background technique [0002] Carbon nanopaper has broad application prospects in the fields of brakes, sensors, and capacitors due to its light weight, flexibility, electrical conductivity, thermal conductivity, and large specific surface area. Carbon nanopaper is mainly divided into three categories: 1. Carbon nanopaper made of carbon nanotubes (single-walled carbon nanotubes, double-walled carbon nanotubes or multi-walled carbon nanotubes) as raw materials; 2. Carbon nanofibers as raw materials Manufactured nano-carbon fiber paper; 3. Graphite-based carbon nano-paper made from graphite / graphene and its derivatives, oxides, etc. as raw materials. Carbon nanopaper (BP) made of carbon nanotubes (CNTs) as a raw material is a thin carbon nanolayer formed by intertwining tubes and tubes through van de...

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 & AuthorityPatents(China)
IPC IPC(8): D21H17/67D21H17/53D21H27/00D21H21/14
CPCD21H17/53D21H17/67D21H17/74D21H21/14D21H27/00
Inventor宾月珍刘落恺胡云平陈志强
OwnerDALIAN UNIV OF TECH