Preparation method of bacterial cellulose based carbon nanofiber for piezoelectric generator

A bacterial cellulose and nano-carbon fiber technology, applied in the direction of single-component cellulose artificial filament, fiber chemical characteristics, textiles and papermaking, can solve the problem of inability to achieve small size and high power organic combination, complex chemical composition and crystal structure , It is difficult to synthesize high-quality nano-scale structures, etc., to achieve the best firmness, toughness, and wide-ranging effects

Inactive Publication Date: 2015-02-18
PUYANG POWER SUPPLY COMPANY STATE GRID HENAN ELECTRIC POWER +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Due to the complex chemical composition and crystal structure of conventional piezoelectric materials, it is difficult to synthesize high-quality nanoscale structures.
Therefore, high output power can only be achieved by increasing the size and external force, and it is impossible to achieve the organic combination of small size and high power

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] The preparation method of bacterial cellulose-based nano-carbon fiber for piezoelectric generator of the present invention comprises the following steps:

[0019] (1) Mix bacterial cellulose wet film, LiFePO4, Tween-80 and organic binder in 1-allyl-3-methylimidazole chloride, and mix the above materials evenly to obtain cellulose spinning liquid; the mass percentage of bacterial cellulose in the spinning solution is 5%, the mass percentage of LiFePO4 is 5%, the mass percentage of Tween-80 is 0.5%, and the mass percentage of organic binder 0.2%;

[0020] (2) The prepared cellulose spinning solution is prepared by a wet spinning process to obtain bacterial cellulose fibers;

[0021] (3) Submerge the above bacterial cellulose fibers in liquid nitrogen, and freeze-dry the bacterial cellulose fibers treated with liquid nitrogen in a vacuum freeze dryer;

[0022] (4) The bacterial cellulose fibers after vacuum freeze-drying were placed in a muffle furnace, and carbonized at...

Embodiment 2

[0026] The preparation method of bacterial cellulose-based nano-carbon fiber for piezoelectric generator of the present invention comprises the following steps:

[0027] (1) Mix bacterial cellulose wet film, LiFePO4, Tween-80 and organic binder in 1-allyl-3-methylimidazole chloride, and mix the above materials evenly to obtain cellulose spinning liquid; the mass percentage of bacterial cellulose in the spinning solution is 10%, the mass percentage of LiFePO4 is 10%, the mass percentage of Tween-80 is 1.5%, and the mass percentage of organic binder 2%;

[0028] (2) The prepared cellulose spinning solution is prepared by a wet spinning process to obtain bacterial cellulose fibers;

[0029] (3) Submerge the above bacterial cellulose fibers in liquid nitrogen, and freeze-dry the bacterial cellulose fibers treated with liquid nitrogen in a vacuum freeze dryer;

[0030] (4) The bacterial cellulose fibers after vacuum freeze-drying were placed in a muffle furnace, and carbonized at...

Embodiment 3

[0034] The preparation method of bacterial cellulose-based nano-carbon fiber for piezoelectric generator of the present invention comprises the following steps:

[0035] (1) Mix bacterial cellulose wet film, LiFePO4, Tween-80 and organic binder in 1-allyl-3-methylimidazole chloride, and mix the above materials evenly to obtain cellulose spinning liquid; the mass percentage of bacterial cellulose in the spinning solution is 8%, the mass percentage of LiFePO4 is 8%, the mass percentage of Tween-80 is 1.0%, and the mass percentage of organic binder 1.5%;

[0036] (2) The prepared cellulose spinning solution is prepared by a wet spinning process to obtain bacterial cellulose fibers;

[0037] (3) Submerge the above bacterial cellulose fibers in liquid nitrogen, and freeze-dry the bacterial cellulose fibers treated with liquid nitrogen in a vacuum freeze dryer;

[0038] (4) The bacterial cellulose fibers after vacuum freeze-drying were placed in a muffle furnace, and carbonized at...

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Abstract

The invention discloses a preparation method of bacterial cellulose based carbon nanofiber used for a piezoelectric generator. The method comprises the following steps: (1) mixing a wet bacterial cellulose film, LiFePO4, tween-80 and machine binder with 1-allyl-3-methylimidazole chloride, and evenly stirring and mixing to obtain cellulose spinning solution; (2) preparing bacterial cellulose fibers with prepared cellulose spinning solution by a wet spinning process; (3) placing the bacterial cellulose fiber into a muffle furnace after vacuum freezing and drying, and performing carbonization under the protection of pure argon gas and at the temperature of 600 EDG C-1500 DEG C to prepare LiFePO4 / C nanofiber; (5) placing the sample after carbonization into a high temperature graphitization furnace, performing graphitization under the protection of pure argon gas and at the temperature of 2200 DEG C-2800 DEG C to form graphitized LiFePO4 / C nanofiber.

Description

technical field [0001] The invention belongs to the technical field of power generation fibers, and in particular relates to a preparation method of bacterial cellulose-based nano-carbon fibers for piezoelectric generators. Background technique [0002] As an important emerging scientific and technological field in the 21st century, nanotechnology is experiencing rapid development in theory and practice. A large number of new nanomaterials and devices have been developed continuously, and have shown unprecedented applications in various fields of biomedicine, national defense and people's daily life. However, with the development of nanotechnology to this day, a large number of researches are focused on the development of high-sensitivity, high-performance nanodevices, and there is almost no research on nanoscale power systems. However, the demand for such a power supply system is increasing day by day for nanometer sensors used in biology and national defense. For example...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D01F9/12D01F2/00D01F1/10
Inventor 杨历伟黄桥林杨高峰史敬天陈雪李朋张梦雨
Owner PUYANG POWER SUPPLY COMPANY STATE GRID HENAN ELECTRIC POWER
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