Double-layer film actuator and preparation method thereof

A double-layer film and actuator technology, applied in coatings, instruments, electrical solid devices, etc., can solve the problems of inability to realize large-area preparation, inability to directional growth of transition metal oxides, and limited ultra-thin flexible metal substrate manufacturing process and cost issues

Pending Publication Date: 2021-03-19
QINGDAO UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, this preparation method is limited by the manufacturing process and cost of ultra-thin flexible metal substrates, and cannot achieve large-area pre

Method used

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  • Double-layer film actuator and preparation method thereof
  • Double-layer film actuator and preparation method thereof
  • Double-layer film actuator and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0026] Example 1

[0027] (1) Disperse commercial magnesium oxide nanoparticles in anhydrous ethanol solvent, ultrasonic dispersion results from 20 mg / ml suspension.

[0028] (2) Scrape the suspension solution of step (1) in the surface of the polystyrene film, the amount of coating is 0.05 mg / cm 2 , Then dry at 60 degrees Celsius.

[0029] (3) The composite film prepared by step (2) is immersed in a solution of a metal ion concentration of 0.05 m, and a solution of different molar ratios (see Table 1), the room temperature reaction time is 1 hour.

[0030] (4) Remove the film in step (3), washed and dried to obtain a target double layer film, and adopt infrared lamp irradiation to control the environmental humidity change, observe the actuation of the target film.

[0031] Table 1

[0032]

[0033] by figure 1 Digital photos can clearly see the area of ​​5 * 13cm 2 The surface of the polyphenylene film is evenly growing brown yellow substance.

[0034] by figure 2 The ele...

Example Embodiment

[0037] Example 2

[0038] (1) Disperse commercial magnesium oxide nanoparticles in anhydrous ethanol solvent, ultrasonic dispersion results from 20 mg / ml suspension.

[0039] (2) Scrape the suspension solution of step (1) in the surface of the polystyrene film, the amount of coating is 0.05 mg / cm 2 , Then dry at 60 degrees Celsius.

[0040] (3) The composite film prepared by step (2) was immersed in a zinc acetate solution, and the metal ion concentration was 0.05 m, and the room temperature reaction time was 1 hour.

[0041] (4) Remove the film in step (3), washed and dried to obtain a target double layer film, and adopt infrared lamp irradiation to control the environmental humidity change, observe the actuation of the target film.

[0042] by Figure 5 It can be seen that under the growth conditions, the double film has deformation capability under infrared lamp.

Example Embodiment

[0043] Example 3

[0044] (1) Disperse commercial magnesium oxide nanoparticles in anhydrous ethanol solvent, and ultrasonic dispersion gives 5 mg / ml suspension.

[0045] (2) The suspension solution of step (1) is loaded with a vacuum filtration method on the surface of the polystyrene microporous film, the coating is 0.05 mg / cm.2 , Then dry at 60 degrees Celsius.

[0046] (3) Immerse the composite film prepared by step (2) into the nickel nickel nitrate, the metal ion concentration is 0.05 m, and the room temperature reaction time is 1 hour.

[0047] (4) Remove the film in step (3), washed and dried to obtain a target double layer film, and adopt infrared lamp irradiation to control the environmental humidity change, observe the actuation of the target film.

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Abstract

The invention discloses a double-layer film actuator and a preparation method thereof, and belongs to the field of functional materials and soft robots. A layer of regularly arranged metal hydroxide directionally grows on a polymer film substrate through a solid-state alkali self-sacrificing method to form a double-layer structure comprising a polymer film and transition metal hydroxide. The preparation method is simple and low in cost, and large-scale preparation can be realized. Rapid, remarkable and stable deformation capacity is achieved under the conditions of humidity change, heating, infrared light and the like by means of the difference of humidity response of the double-layer thin film, and moving and object grabbing can be achieved through deformation control. Therefore, the method has important application value in the fields of flexible switches, artificial muscles, soft robots, environmental monitoring and the like.

Description

technical field [0001] The invention belongs to the technical field of functional materials and soft robot applications, and in particular relates to a double-layer film actuator and a preparation method thereof. Background technique [0002] Soft robot is a new type of soft robot, and its driving method mainly depends on the deformation of the smart materials used under the stimulation of electric field, pressure, magnetic field, chemical reaction, light, temperature, humidity and so on. As an effective smart material, the double-layer thin-film actuator is characterized by a double-layer structure, relying on the different deformations of the two materials when stimulated to complete actions such as movement and grasping. The research difficulty lies in the selection of sensitive materials and the design of double-layer structure. [0003] Due to the layered structure of hydrotalcite, transition metal hydroxides are highly sensitive to humidity, so the migration and migra...

Claims

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Application Information

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IPC IPC(8): B81B7/00B81C1/00
CPCB81B7/0009B81B2201/03B81C1/00134
Inventor 郑宗敏杨震李征宋兆海戴作强张洪信何田
Owner QINGDAO UNIV
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