Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Preparation method of nitrogen-doped nanocellulose/carbon nanofiber composite

A technology of nanocellulose and carbon nanofibers, which is applied in the fields of fiber raw material processing, fiber chemical characteristics, textiles and papermaking, etc., can solve the problems of restricting the development of carbon fibers, complicated experimental procedures, and difficult control of tube diameters, so as to improve electron transfer properties , Improve the specific capacity, good light transmittance effect

Inactive Publication Date: 2018-01-19
陈毅忠
View PDF5 Cites 5 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention: the current carbon fiber is mainly processed and produced from coal tar, petroleum pitch and other materials. Such resources are non-renewable resources, which limit the future development of carbon fiber, and the template method has high requirements for the template. The production cost is high, and the yield of carbon nanotubes prepared by chemical vapor deposition is high, but the experimental procedures are complicated, the reaction conditions are harsh, and the tube diameter is not easy to control. It provides a nitrogen-doped nanocellulose / carbon nanofiber composite material. Preparation

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

Examples

Experimental program
Comparison scheme
Effect test

example 1

[0023] Take coconut leaf stalks, wash them with deionized water, dry them naturally, put them into a pulverizer and grind them, and pass through a 40-mesh sieve to obtain coconut leaf stalk powder. Take 3kg of coconut leaf stalk powder and put them into a steam explosion tank, heat to 110°C, and Water vapor was introduced into the steam explosion tank until the pressure inside the tank was 1.5 MPa. After maintaining the pressure for 5 minutes, the valve of the steam explosion tank was opened to release the pressure. After the pressure was released to normal pressure, the coconut petiole powder was taken out and washed three times with deionized water at 60°C to obtain Steam explosion treatment of coconut petiole powder, take 300g of steam explosion treatment coconut petiole powder, soak in 3L of 10% hydrogen peroxide solution, react in a constant temperature water bath at 60°C for 1h, and then use 5% sodium hydroxide solution Adjust the pH to 10, continue the reaction for 1 h i...

example 2

[0025] Take coconut leaf stalks, wash them with deionized water, dry them naturally, put them into a pulverizer and grind them, and pass through a 40-mesh sieve to get coconut leaf stalk powders. Take 4kg of coconut leaf stalk powders and put them into a steam explosion tank, heat to 115°C, and Water vapor was introduced into the steam explosion tank until the pressure inside the tank was 2.0MPa. After maintaining the pressure for 6 minutes, the valve of the steam explosion tank was opened to release the pressure. After the pressure was released to normal pressure, the coconut petiole powder was taken out and washed 4 times with 70°C deionized water to obtain Steam explosion treatment coconut petiole powder, take 400g steam explosion treatment coconut petiole powder, soak in 4L mass fraction of 10% hydrogen peroxide solution, react in a constant temperature water bath at 70°C for 1.5h, and then use mass fraction of 5% sodium hydroxide The pH of the solution was adjusted to 10, ...

example 3

[0027]Take the coconut petiole, wash it with deionized water, dry it naturally, put it into a pulverizer and grind it, and pass through a 40-mesh sieve to get the coconut petiole powder. Take 5kg of the coconut petiole powder and put it into a steam explosion tank, heat it to 120°C, and Water vapor was introduced into the steam explosion tank until the pressure inside the tank was 2.5 MPa. After maintaining the pressure for 8 minutes, the valve of the steam explosion tank was opened to release the pressure. After the pressure was released to normal pressure, the coconut petiole powder was taken out and washed 5 times with 80°C deionized water to obtain Steam explosion treatment of coconut petiole powder, take 500g of steam explosion treatment coconut petiole powder, soak in 5L of 10% hydrogen peroxide solution by mass fraction, react in a constant temperature water bath at 80°C for 2h, and then use 5% sodium hydroxide solution Adjust the pH to 11, continue the reaction for 2 ho...

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
thicknessaaaaaaaaaa
diameteraaaaaaaaaa
Login to View More

Abstract

The invention relates to a preparation method of a nitrogen-doped nanocellulose / carbon nanofiber composite and belongs to the field of nanocomposites. According to the preparation method, a coconut petiole structure is destroyed by steam explosion treatment, and hemicellulose, lignin and the like are hydrolyzed; then, impurities are removed by dissolving to prepare coconut petiole nanocellulose with high strength, high elasticity modulus and good light transparency; next, a great number of nitrogen-doped carbon nanotubes with relatively uniform shapes and sizes are produced by gaseous-phase detonation according to the characteristic that the radius of a nitrogen atom is close to that of a carbon atom and the nitrogen atom easily enters a carbon nanotube lattice to form a C-N bond, the local charge density of the carbon nanotubes is changed by virtue of nitrogen doping, the electron transfer property of the carbon nanotubes is improved, the resistance coefficient is reduced, and a nitrogen-containing functional group introduced by nitrogen doping can bring a quasi faraday effect, so that the specific capacity of a carbon nanotube supercapacitor is effectively improved, and the nanocomposite with high strength and good conductivity is prepared. The nitrogen-doped nanocellulose / carbon nanofiber composite can be applied to the fields such as lithium ion batteries and supercapacitors.

Description

technical field [0001] The invention relates to a preparation method of a nitrogen-doped nanocellulose / carbon nanofiber composite material, which belongs to the technical field of nanocomposite materials. Background technique [0002] The development of biomass nanomaterials from biomass raw materials and the preparation of functional products can further improve the added value and utilization efficiency of biomass raw materials. Biomass resources include various natural resources and their derived resources, widely distributed on the earth, renewable, inexhaustible and inexhaustible. Cellulose is the most widely distributed and abundant natural polymer material in nature. It mainly comes from the cell walls of higher plants and wood. For example, the cellulose content of cotton is almost 100%, and the cellulose content of wood is 40-50%. Left and right, crop wastes (soybean hulls, straw, bagasse) are also important sources of cellulose. Cellulose has great potential for ...

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): C08L1/04C08K7/06C08B15/02D21C5/00D01F9/16
Inventor 陈毅忠王之霖陈倩
Owner 陈毅忠
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com