A kind of triboelectric generator based on plant protein and preparation method thereof

A triboelectric generator and plant protein technology, applied in the direction of triboelectric generators, etc., can solve problems such as difficult application, frictional electrification properties and mechanism to be explored, cumbersome processing steps, etc., and achieve low price, simple preparation process, and wide sources Effect

Active Publication Date: 2020-09-18
ZHEJIANG UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, cumbersome processing steps will make it difficult for practical application
So far, the application of plant prote

Method used

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  • A kind of triboelectric generator based on plant protein and preparation method thereof
  • A kind of triboelectric generator based on plant protein and preparation method thereof
  • A kind of triboelectric generator based on plant protein and preparation method thereof

Examples

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Effect test

preparation example Construction

[0038] 1) First, the preparation of the protein film: the protein is dispersed in an aqueous solution or a concentration of 70%-90% ethanol solution (1-10%, w / w) to prepare a protein solution; then add a mass of Protein 10-60% (w / w) plasticizer (such as glycerin), heated and denatured in a water bath at 60-95°C, stirred for 30-60 minutes, degassed under vacuum for 10 minutes, then poured into a mold and placed in an oven Evaporate to dryness at 30-70°C.

[0039] In the specific implementation, the dried protein film is finally peeled off, and the specific implementation also places the protein film under constant temperature and humidity conditions, so that it can balance the moisture under certain temperature and humidity conditions for subsequent electrical tests.

[0040] 2) Triboelectric negative layer: The specific triboelectric negative layer is made of polytetrafluoroethylene (Teflon), polydimethylsiloxane (PDMS), polyvinyl chloride (PVC), polyimide (Kapton), silicon R...

Embodiment 1

[0045] 1) The first is the preparation of the protein film. The film-forming solution is prepared by dispersing rice protein, peanut protein isolate, soybean protein isolate, and wheat gluten in distilled water (5%, w / w). In addition, zein is dispersed in The concentration is 70% ethanol aqueous solution (5%, w / w). Then, 30% (w / w) glycerol with a mass of protein was added to the five protein solutions.

[0046] 2) In the present embodiment, for rice protein, peanut protein isolate, soybean protein isolate, and wheat gluten, the following are specifically: 5g vegetable protein and 1.5g glycerin are mixed in 100mL deionized aqueous solution, and after magnetic stirring for 10 minutes, , and then adjust the pH of the protein precursor solution. The pH value of the protein solution was adjusted to 12 using 1M sodium hydroxide solution; then the protein solution was heated and stirred at 65° C. for 30 minutes, and degassed under vacuum for 10 minutes to remove air bubbles.

[004...

Embodiment 2

[0052] Taking rice protein as an example, 5 g of rice protein was mixed with 1.5 g of glycerol in 100 mL of deionized aqueous solution, and after magnetic stirring for 10 min, the pH of the protein solution was adjusted to 12 using 1 M sodium hydroxide solution. The protein solution was then heated and stirred at 65 °C for 30 min, and degassed under vacuum for 10 min to remove air bubbles. Finally, the final film-forming solution was poured into a circular Teflon mold (3 cm in diameter) and dried in an oven at 60 °C. Finally, the dried film was peeled off and placed in a constant temperature and humidity incubator at 25° C. and 40% relative humidity for 24 hours as a triboelectron-donating layer for testing.

[0053] Preparation of the triboelectric negative layer: the polylactic acid film was cut into a circle with a diameter of 3 cm.

[0054] Preparation of triboelectric nanogenerator: The above-mentioned rice protein film and polylactic acid film were combined to form a tr...

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Abstract

The invention discloses a frictional electricity generator based on vegetable protein and a preparation method thereof. The frictional electricity generator comprises a frictional electricity negativelayer and a protein film which are stacked face to face, wherein the back surfaces of the frictional electricity negative layer and the protein film are respectively bonded or plated with an electrode, or only the back surface of the protein film or the back surface of the frictional electricity negative layer is provided with a grounded electrode. The preparation method comprises the following steps: dissolving protein powder into water or an aqueous ethanol solution, then adding a plasticizer, and carrying out thermal treatment until protein is denatured so as to obtain a more extended structure required for film formation; and evaporating a solvent, and carrying out drying so as to obtain the protein film with uniform texture and good transparency and flexibility. According to the invention, the vegetable protein is creatively utilized as a frictional electricity material, and a nanometer frictional electricity generator is used as a biodegradable mulching film, so a space electricfield promoting system is created for agriculture, and is further used for the growth of a crop.

Description

technical field [0001] The invention relates to a friction nanogenerator, in particular to a plant protein-based friction nanogenerator and a preparation method thereof. Background technique [0002] With the rapid development of flexible and portable electronics, triboelectric nanogenerators capable of efficiently converting various forms of mechanical energy into electrical energy will be used as the mainstream of future world energy supply. So far, most research works on triboelectric nanogenerators have emphasized structural design or material innovation. [0003] Materials currently widely used in triboelectric nanogenerators include polyamide (nylon)-11 and polyethylene terephthalate (PET), etc. It is worth noting that these materials cannot be completely degraded and are prone to release dangerous chemicals. With the rapid upgrading of electronic products, they will become electronic waste, which undoubtedly brings a huge burden to the environment. Therefore, flexib...

Claims

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Application Information

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IPC IPC(8): C08J5/18H02N1/04C08L89/00
CPCC08J5/18C08J2389/00H02N1/04
Inventor 平建峰姜成美
Owner ZHEJIANG UNIV
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