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Skipjack meal humidity driving film as well as preparation method and application thereof

A bonito meal and humidity technology, applied in the field of material science, can solve the problems of high cost, complex preparation process, unfriendly environment, etc., and achieve the effects of low material cost, simple preparation method and good biocompatibility

Active Publication Date: 2022-07-12
HARBIN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Aiming at the problems of complex preparation process, high cost and unfriendly environment of existing humidity-driven materials, the present invention proposes a humidity-driven film of bonito powder and its preparation method and application

Method used

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  • Skipjack meal humidity driving film as well as preparation method and application thereof
  • Skipjack meal humidity driving film as well as preparation method and application thereof
  • Skipjack meal humidity driving film as well as preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

specific Embodiment approach 1

[0030] A bonito meal humidity driving film includes a bonito meal layer, wherein the number of bonito meal particles of the bonito meal layer is distributed in a gradient from top to bottom.

[0031] Further, the thickness of the bonito powder layer is 10-60 μm.

specific Embodiment approach 2

[0032] A preparation method of a bonito meal humidity-driven film is carried out according to the following steps:

[0033] Step 1: Preparation of bonito powder dispersion:

[0034] Dissolve 0.5-5g of bonito powder in 40-80ml of alkaline solution with a concentration of 0.5-5mol / L, the mixed solution is controlled at 20-30°C, magnetically stirred for 0.5-5h, and the magnetic stirring speed is controlled to be 500-1000r / min. Centrifuge the mixed solution for the first time, control the centrifugation speed at 2000-4000r / min, centrifuge time for 10-20min, and collect the supernatant. Centrifuge the supernatant for the second time, control the centrifugation speed at 8000-10000r / min and the centrifugation time for 10-20min, and collect the lower layer precipitate. Dissolve the precipitate in 40-80ml of deionized water and vortex to disperse, control the vortex speed to 1000-3000r / min, and the vortex time to 10-30min to obtain the bonito powder dispersion.

[0035] Step 2: Pre...

specific Embodiment approach 3

[0041] Embodiment 1 Application of the bonito meal humidity-driven film: when the ambient humidity increases, the bonito meal humidity-driven film bends from the bottom to the top, and when the ambient humidity decreases, the bonito meal humidity-driven film moves from the top to the top. Bottom curved.

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Abstract

The invention discloses a skipjack powder humidity driving film and a preparation method and application thereof, and belongs to the field of material science, and the specific scheme is as follows: the skipjack powder humidity driving film comprises a skipjack powder layer, and the skipjack powder particles of the skipjack powder layer are in gradient distribution from top to bottom. The preparation method comprises the following steps: 1, dissolving skipjack powder in an alkaline solution, stirring to obtain a mixed solution, carrying out primary centrifugation on the mixed solution, collecting a supernatant, carrying out secondary centrifugation on the supernatant, collecting a lower precipitate, dissolving the precipitate in deionized water, and uniformly dispersing to obtain a skipjack powder dispersion liquid; and 2, carrying out suction filtration on the skipjack powder dispersion liquid obtained in the step 1 to obtain a skipjack powder suction filtration membrane, drying, and stripping from the suction filtration membrane to obtain the skipjack powder humidity driving film. The humidity driving film prepared by taking the skipjack meal as the raw material has biocompatibility and biodegradability, controllable driving deformation can be realized under humidity stimulation, and the preparation method is simple, low in cost and environment-friendly.

Description

technical field [0001] The invention belongs to the field of material science, and particularly relates to a bonito meal humidity-driven film and a preparation method and application thereof. Background technique [0002] By simulating the response behavior of natural animals and plants to environmental stimuli, researchers have developed a variety of intelligent driving materials, which can produce reversible motion responses under the stimulation of external electric field, magnetic field, temperature, light, and humidity. Fields such as robotics, generators, and biomedical devices have enormous potential. Among them, humidity-driven materials have attracted extensive attention of researchers in recent years due to their abundant driving energy (water molecules), non-contact and simple control methods. [0003] Most of the existing humidity-driven materials are made of carbon nanotubes, graphene oxide, MXene, and synthetic polymers. However, these synthetic materials are ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F03G7/06B29D7/01B01D37/02
CPCF03G7/06B29D7/01B01D37/02Y02A40/90
Inventor 陈仲彭庆宇赫晓东
Owner HARBIN INST OF TECH
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