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Composite electrogenesis fiber based on sodium alginate and preparation method thereof

A technology of sodium alginate and fiber, which is applied in the field of micro-energy recovery and power generation, can solve problems such as unexisted problems, and achieve the effects of low preparation cost, good toughness, and simple preparation method

Active Publication Date: 2021-12-31
SOUTHEAST UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] In summary, in the existing graphene oxide applications, there is no application and enlightenment of combining graphene oxide materials with sodium alginate fiber materials for power generation

Method used

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  • Composite electrogenesis fiber based on sodium alginate and preparation method thereof
  • Composite electrogenesis fiber based on sodium alginate and preparation method thereof
  • Composite electrogenesis fiber based on sodium alginate and preparation method thereof

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preparation example Construction

[0041] The preparation method of the composite power generation fiber based on sodium alginate in the present invention comprises the following methods,

[0042] 1. Prepare a sodium alginate solution with a mass fraction of 3%: Measure a certain amount of deionized water in a beaker, weigh the purified and dried sodium alginate powder, add it to the beaker while stirring, and stir magnetically at room temperature for 4 hour to fully swell the sodium alginate, and then continue to stir in a 50°C water bath for 0.5 hour to fully dissolve the sodium alginate to obtain a uniform and stable sodium alginate solution.

[0043] 2. Preparation of graphene oxide powder: weigh 2.5g of graphite, 12.5g of potassium permanganate, and prepare 500mL of 5wt% sulfuric acid;

[0044]Add graphite to sulfuric acid and stir well. In an ice bath at 10°C, add potassium permanganate to the mixture of graphite and sulfuric acid in batches every 2 minutes, heat the mixture to 40°C for 1 hour, and then ...

Embodiment 1

[0051] A preparation method of a sodium alginate-based composite electricity-generating fiber, comprising the steps of:

[0052] (1) Configure 3wt% sodium alginate solution, 15mg / mL graphene oxide solution, 5mg / mL CNT solution, 3mol / L lithium chloride solution, 10wt% CaCl 2 fiber coagulation bath;

[0053] (2) Take the sodium alginate solution, graphene oxide solution and cellulose configured in step (1) and mix and stir evenly at a volume ratio of 5:1:1, and add 5mL of the CNT solution to obtain a mixed solution;

[0054] (3) inject the mixed solution in the step (2) into the coagulation bath through the injector and the needle to form fibers;

[0055] (4) Clean the fibers in step (3) successively with absolute ethanol and deionized water, then dry them naturally, soak them in lithium chloride solution for 1 hour, collect them with polytetrafluoroethylene sticks and dry them naturally, and place them at both ends of the fibers Connect wires to obtain composite power generat...

Embodiment 2

[0059] A preparation method of a sodium alginate-based composite electricity-generating fiber, comprising the steps of:

[0060] (1) Configure 3wt% sodium alginate solution, 15mg / mL graphene oxide solution, 5mg / mL CNT solution, 3mol / L lithium chloride solution, 10wt% CaCl 2 fiber coagulation bath;

[0061] (2) Take the sodium alginate solution, graphene oxide solution and cellulose configured in step (1) and mix and stir evenly in a volume ratio of 5:1:2, and add 5mL of CNT solution to obtain a mixed solution;

[0062] (3) inject the mixed solution in the step (2) into the coagulation bath through the injector and the needle to form fibers;

[0063] (4) Clean the fibers in step (3) successively with absolute ethanol and deionized water, then dry them naturally, soak them in lithium chloride solution for 1 hour, collect them with polytetrafluoroethylene sticks and dry them naturally, and place them at both ends of the fibers Connect wires to obtain composite power generation ...

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Abstract

The invention discloses a composite electrogenesis fiber based on sodium alginate and a preparation method thereof. The composite electrogenesis fiber has the characteristics that the water absorption performance of the fiber in air is improved, moisture in the air can be absorbed, the fiber becomes wet, a large number of hydrogen ions are ionized, and the hydrogen ions are gathered towards one section of the fiber along with movement of water molecules along the fiber, so that voltage is generated; materials adopted for preparing the fiber are all materials which can be purchased or prepared in a laboratory, so that the preparation cost is low, the preparation method is simple and convenient, and the preparation period is short; the fibers with the sodium alginate as the matrix have good toughness, torsion resistance and tensile strength, are high in plasticity and can be woven into different shapes for application; and the method of adding graphitized carboxylated multi-walled carbon nanotubes and cellulose nanofibers strengthens and stabilizes the generated voltage. The added chemical components have no corrosivity, so that the fiber has a better skin-friendly property.

Description

technical field [0001] The invention relates to the field of micro-energy recovery and power generation, in particular to a sodium alginate-based composite power generation fiber and a preparation method thereof. Background technique [0002] In recent years, smart wearable devices have developed rapidly and received widespread attention, which has also led to the development of new materials and microelectronic components. Power supply and conductive materials are very important in smart wearable devices. At present, many smart wearable devices use batteries as power sources, which make them have a large power supply and attached circuits and other equipment, which is very inconvenient to wear. Therefore, it is of great significance to find conductive materials that can generate stable and usable voltage in air environment. [0003] Since wearable devices are in close contact with the human body, and the working environment is mostly atmospheric, the materials need to have...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06M11/13D01F9/04D01F1/10D06M101/04
CPCD06M11/13D01F9/04D01F1/10D06M2101/04Y02E60/13
Inventor 巩峰陈浩天刘超李明孙向阳王思珺刘丽珊
Owner SOUTHEAST UNIV