Carbonized bacterial cellulose/carbon nanotube film material and preparation method thereof

A technology of bacterial cellulose and carbon nanotube film, which is applied in the field of carbonized bacterial cellulose/carbon nanotube film material and its preparation, can solve the problems of bacterial cellulose destruction, environmental pollution, and easy surface peeling of carbon nanotubes. Achieve the effect of increasing the conductivity and increasing the injection volume

Active Publication Date: 2018-09-07
NANJING FORESTRY UNIV
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  • Summary
  • Abstract
  • Description
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Problems solved by technology

[0004] In view of the shortcomings of the prior art, such as long preparation cycle, environmental pollution, destruction of the three-dimensional network structure of bacterial cellulose, and easy surface peeling of carbon nanotubes, the purpose of the present invention is to provide a carbonized bacterial cellulose / carbon nanotube film material, Carbon nanotubes are uniformly arranged in the carbon film, which has the advantages of uniform texture and high conductivity

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  • Carbonized bacterial cellulose/carbon nanotube film material and preparation method thereof
  • Carbonized bacterial cellulose/carbon nanotube film material and preparation method thereof

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Embodiment 1

[0029] A preparation method of carbonized bacterial cellulose / carbon nanotube film: disperse carboxylated multi-walled carbon nanotubes with a diameter of 7 to 15 nm and a length of 5 to 20 μm in the surfactant cetyltrimethylammonium bromide 0.3wt % aqueous solution, obtain a concentration of 0.05wt% carboxylated multi-walled carbon nanotube aqueous solution, and then use the ultrasonic cell breaker to break and disperse, the power is 600W, the ultrasonic time is 10min, and finally the highly stable carboxylated multi-walled carbon nanotubes are prepared Nanodispersion. Use conventional cellulose filter paper to suck out the moisture of bacterial cellulose hydrogel, then soak it in highly stable carboxylated multi-walled carbon nanotube nano-dispersion at room temperature, and fully absorb the multi-walled carbon nanotube dispersion to achieve multi-walled carbon nanotube dispersion. Uniform distribution of walled carbon nanotubes in bacterial cellulose hydrogels. Utilize con...

Embodiment 2

[0031]A preparation method of carbonized bacterial cellulose / carbon nanotube film: disperse carboxylated multi-walled carbon nanotubes with a diameter of 7 to 15 nm and a length of 5 to 20 μm in the surfactant cetyltrimethylammonium bromide 0.3wt % aqueous solution, obtain a concentration of 0.05wt% carboxylated multi-walled carbon nanotube aqueous solution, and then use the ultrasonic cell breaker to break and disperse, the power is 600W, the ultrasonic time is 10min, and finally the highly stable carboxylated multi-walled carbon nanotubes are prepared Nanodispersion. Use conventional cellulose filter paper to suck out the moisture of bacterial cellulose hydrogel, then soak it in highly stable carboxylated multi-walled carbon nanotube nano-dispersion at room temperature, and fully absorb the multi-walled carbon nanotube dispersion to achieve multi-walled carbon nanotube dispersion. Uniform distribution of walled carbon nanotubes in bacterial cellulose hydrogels. Utilize conv...

Embodiment 3

[0033] A preparation method of carbonized bacterial cellulose / carbon nanotube film: disperse carboxylated multi-walled carbon nanotubes with a diameter of 30 to 50 nm and a length of 10 to 20 μm in 0.3 wt% of the surfactant sodium dodecylbenzenesulfonate In the aqueous solution, obtain a carboxylated multi-walled carbon nanotube aqueous solution with a concentration of 0.05wt%, and then use an ultrasonic cell breaker to break and disperse it. The power is 400W, and the ultrasonic time is 40min. liquid. Use conventional cellulose filter paper to suck out the moisture of bacterial cellulose hydrogel, then soak it in highly stable carboxylated multi-walled carbon nanotube nano-dispersion at room temperature, and fully absorb the multi-walled carbon nanotube dispersion to achieve multi-walled carbon nanotube dispersion. Uniform distribution of walled carbon nanotubes in bacterial cellulose hydrogels. Utilize conventional cellulose filter paper to absorb water to the hydrogel of b...

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Abstract

The invention discloses a carbonized bacterial cellulose / carbon nanotube film material and a preparation method thereof. The preparation method comprises the followings: 1) preparing a carboxylated carbon nanotube nano dispersion solution; 2) preparing bacterial cellulose / carboxylated carbon nanotube aerogel; 3) carrying out carbonization treatment to prepare a carbonized bacterial cellulose / carbon nanotube film. According to the carbonized bacterial cellulose / carbon nanotube film material and the preparation method thereof, the integrity and good mechanical properties of the carbonized bacterial cellulose / carbon nanotube film are ensured and the carbonized bacterial cellulose / carbon nanotube film has high electrical conductivity; a preparation technology is simple, green and environmentally friendly and is suitable for batch production.

Description

technical field [0001] The invention belongs to the technical field of conductive material preparation, and in particular relates to a carbonized bacterial cellulose / carbon nanotube film material and a preparation method thereof. Background technique [0002] Bacterial cellulose has been commercially produced. It is prepared through scalable and efficient bio-fermentation technology. Cheap bacteria metabolize and synthesize small molecule sugars and alcohols to directly obtain high-purity cellulose, which is widely used in medical materials, food, Light industry and environmental protection industries. Bacterial cellulose has the characteristics of high purity, high crystallinity, high degree of polymerization, fine network structure, biocompatibility and degradability. Among them, the three-dimensional porous nanofiber flexible network of bacterial cellulose and abundant surface functional groups, Ideal for preparation and functionalization of aerogels, thin films. Carbon...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L1/02C08K9/04C08K3/04C08J5/18
CPCC08J5/18C08K9/04C08K2201/011C08K3/041
Inventor 王洁于样邹鸿刚何昌远段航航王心怡凌鹏飞
Owner NANJING FORESTRY UNIV
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