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Ionic induction type artificial skin array structure and preparation method thereof

An array structure and artificial skin technology, applied in the manufacture of tools, textiles, fabrics, etc., can solve the problems of difficult arraying, individual measurement, and insufficient sensitivity to small local deformations, and achieve the effect of strong sensing ability and sensitive response

Active Publication Date: 2016-06-15
HEFEI UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the traditional ionic EAP directly used as an artificial skin sensor has two shortcomings: 1) most of them are measured separately, and it is difficult to form an array; 2) they are not sensitive enough to small local deformations

Method used

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  • Ionic induction type artificial skin array structure and preparation method thereof
  • Ionic induction type artificial skin array structure and preparation method thereof
  • Ionic induction type artificial skin array structure and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] The present embodiment prepares the ion-sensing type artificial skin array structure based on metal wire and Nafion ionic membrane material according to the following steps:

[0043] (1) Adhesive sheet, copper wire and Nafion D520 (5%) solution (produced by DuPont, USA) were prepared, and the copper wire (about 150 μm in diameter and 10 cm in length) was directly used as a flexible fiber electrode.

[0044] (2) Use Nafion D520 (5%) solution (produced by DuPont, USA) as polyelectrolyte solution, drop it on copper wire, bake at 50° C. for 3 hours, evaporate to form a film, form a sheath, and make a composite electrode fiber;

[0045] (3) Using the glass plate as the base, first arrange three composite electrode fibers in parallel on the glass plate, the distance between adjacent composite electrode fibers is 5mm, and the ends are fixed with two adhesive sheets. Then, the other three composite electrode fibers were arranged vertically crossing at 90° on the composite elect...

Embodiment 2

[0050] The present embodiment prepares the ion-sensing type artificial skin array structure based on silver-plated fiber and Nafion ion membrane material according to the following steps:

[0051] (1) Soak several fiber filaments in the Ag nanoparticle dispersion, then evaporate the solvent to obtain silver-plated fibers as flexible fiber electrodes;

[0052] (2) Use such as Figure 5 In the composite electrode fiber production device shown, open the valve 4 through the valve handle 5, insert the flexible fiber electrode 6 into the heating mold 2, close the valve 4, place it horizontally, and then pass the Nafion D520 (5%) solution (produced by DuPont, USA) through The funnel is poured into the heating mold from the feed port 1, and heated by the heating sheet 3. First, it is kept at 80°C for 30 minutes, then the temperature is raised to 120°C for 6 hours, and finally raised to 140°C and kept for 30 minutes. After the device is cooled, add an appropriate amount of deionized w...

Embodiment 3

[0057] In this example, an ion-sensing artificial skin array structure composed of composite electrode fibers and flexible fiber electrodes is prepared according to the following steps:

[0058] (1) prepare silver-plated fiber by the mode in embodiment 2, as flexible fiber electrode 6;

[0059] (2) Use NafionD520 (5%) solution (produced by DuPont, USA) as a polyelectrolyte solution, drop it on the silver-plated fiber, bake at 50°C for 3 hours, evaporate to form a film, form a sheath, and make a composite electrode fiber 7;

[0060] (3) if Figure 8 (a) and Figure 8 As shown in (b), the composite electrode fiber 7 is used as the lower layer, and the flexible fiber electrode 6 is used as the upper layer, and the two layers are vertically arranged in an array structure; Pressing each other at the contact points to form an ion-sensing artificial skin array structure;

[0061] (4) Soak the ion-sensing artificial skin array structure made in step (3) in 0.1mol / L HCl for 2 hours...

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Abstract

The invention discloses an ionic induction type artificial skin array structure and a preparation method thereof. The array structure is characterized in that the array structure is an array structure formed by distributing composite electrode fibers in a crossed mode, or an array structure formed by distributing composite electrode fibers and flexible fiber electrodes made of conductive materials in a crossed mode, or a fabric structure formed by weaving composite electrode fibers, or a fabric structure formed by blending and weaving composite electrode fibers and flexible fiber electrodes made of conductive materials, wherein the composite electrode fibers are composed of core layers and sheaths, the core layers are flexible fiber electrodes made of the conductive materials, the sheaths are wrapping layers of the flexible fiber electrodes made of polyelectrolyte, the outer surfaces of the core layers are wrapped by the sheaths, and the two ends of the core layers are exposed. The ionic induction type artificial skin array is based on ionic migration, and can simulate the biological skin tactile sense biological electric induction principle. Compared with artificial skin materials of other types, the induction ability higher, and response is more sensitive.

Description

technical field [0001] The invention relates to a novel electroactive material and its preparation technology, in particular to an artificial skin array structure based on ion-induced electricity generation and its preparation method. Background technique [0002] Artificial skin can simulate the tactile perception function of biological skin, and has great application potential and industrialized market in the fields of robots, modern medical health monitoring, limbs and organs of the disabled, surgical control arms and wearable electronic products. [0003] Traditional artificial skin materials do not match well with the human body in terms of flexibility, there is no advantage in simulating the dynamic frequency of human skin, and the tactile perception function of the skin is unreal. In recent years, artificial skins based on polymer films have improved these problems to some extent. [0004] According to different sensing principles, artificial skin materials are mainl...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D01D5/00D04H1/541D03D15/00D06M11/11D06M11/55B25J11/00D03D15/30D03D15/533
CPCD01D5/0015D03D15/00D04H1/541D06M11/11D06M11/55B25J11/00D03D15/47
Inventor 常龙飞朱子才刘炎发王延杰胡小品俞林锋
Owner HEFEI UNIV OF TECH
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