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Electrothermal phase change actuator based on graphene/nano-silver-emulsion film and its manufacturing method

A latex film and actuator technology, applied in the field of electrothermal phase change actuators, can solve the problems of small feedback force, high actuator drive voltage, uncontrollable feedback force, etc., and achieve controllable feedback force, low drive voltage, and easy start-up Effect

Active Publication Date: 2020-10-02
HEFEI UNIV OF TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] The present invention is based on the method of mold-adhesion-injection, and proposes an electrothermal phase-change actuator based on graphene / nano-silver-emulsion film and a manufacturing method, aiming at solving the problem of large driving voltage and small feedback force of existing actuators. The problem of uncontrollable feedback force makes it suitable for occasions that require precise control of the feedback state

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  • Electrothermal phase change actuator based on graphene/nano-silver-emulsion film and its manufacturing method
  • Electrothermal phase change actuator based on graphene/nano-silver-emulsion film and its manufacturing method
  • Electrothermal phase change actuator based on graphene/nano-silver-emulsion film and its manufacturing method

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Embodiment 1

[0039] Such as figure 1 As shown, the electrothermal phase change actuator of this embodiment includes a thermal feedback substrate 1; the thermal feedback substrate is obtained by mixing graphene and nano-silver as conductive fillers with silicone rubber;

[0040] A groove is provided on the thermal feedback base 1, and a latex film cover is encapsulated on the upper surface of the thermal feedback base, so that the groove becomes a closed cavity storing the phase change material alcohol 4;

[0041] The latex film cover sheet is wrapped with a stretchable flexible latex film 2 outside a copper sheet 3 that is as large as the upper surface of the thermal feedback base; That is, the latex film only covers the whole of the upper surface of the copper sheet and a part of the lower surface, and the area of ​​the lower surface corresponding to the groove is not covered), and several through holes 3a are provided, so that the latex film on the upper surface of the copper sheet and t...

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Abstract

The invention discloses an electric heating phase transition actuator based on a graphene / nano-silver-latex film and a making method of the actuator. The actuator takes graphene / nano-silver / silicone rubber as a heat feedback base, takes alcohol as a phase transition material and takes a stretchable elastic latex film as an actuating film. Accordingly, a mold reversing-adhesion-injection method isadopted for making the feedback force controllable electric heating phase transition actuator, compared with an existing actuator, the actuator has the advantages of being easy to make, large in feedback force range, low in driving voltage and controllable in feedback force, and the actuator can be used for medical science, underwater detection, a mechanical arm and a wearable device.

Description

technical field [0001] The invention belongs to the field of electrothermal phase change actuators, in particular to an electrothermal phase change actuator with controllable feedback force based on graphene / nano silver-emulsion film and a manufacturing method. Background technique [0002] An actuator is a device that converts other forms of energy (including chemical energy, light energy, electrical energy, and heat energy) into mechanical energy through a control signal. Feedback is widely used in human-computer interaction, prosthetics, medical devices, bionic applications, tactile displays, and cargo transportation. [0003] Programmable soft chemical mechanical actuators studied by P. Yuan et al. use chemical reactions to convert chemical energy into mechanical energy. However, the obvious disadvantages of this type of actuator are long response time and poor repeatability. Therefore it is necessary to replace the chemical solution to maintain the performance of the ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L83/04C08K3/04C08K3/08C09K5/04
CPCC08K3/042C08K3/08C08K2003/0806C08K2201/001C08K2201/011C09K5/04
Inventor 黄英胡伟刘平郭小辉郝超
Owner HEFEI UNIV OF TECH
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