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Biomimetic structure type polymer actuator and preparation method thereof

A polymer and actuator technology, applied in the direction of liquid chemical plating, coating, non-woven fabrics, etc., can solve the problems that the structure does not realize bionics, increase the cost of IPMC, and unfavorable the promotion and application of IPMC, and achieve excellent mechanical strength, The effect of good conductivity and good market prospects

Inactive Publication Date: 2015-03-04
CHONGQING UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Third, the electrode material in IPMC generally uses platinum, which is a very expensive metal material as we all know, which greatly increases the cost of IPMC and is not conducive to the promotion and application of IPMC.
However, the current polymer actuators are only functionally "bionic", that is, they can present various complex states according to changes in current, such as bending, extending, twisting and contracting, etc., but they have not realized structurally. Bionic

Method used

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  • Biomimetic structure type polymer actuator and preparation method thereof
  • Biomimetic structure type polymer actuator and preparation method thereof
  • Biomimetic structure type polymer actuator and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0052] see figure 1 , the bionic polymer actuator of the present invention is mainly composed of a layer of polymer film and platinum electrodes covering both sides of the polymer film, wherein the polymer film is the sulfonated block copolymer (SPTES)-Nafion hybrid film.

[0053] 1. Preparation of sulfonated block copolymer (SPTES)-Nafion hybrid film:

[0054] 1) Synthesis of sulfonated monomer (SDFDPS):

[0055] Dissolve 25.4g of difluorodiphenyl sulfone in 50mL of oleum with a volume fraction of 50%, and stir and react at 160°C for 12h. After the reaction, adjust the pH value of the reaction solution to 6 with 4mol / L NaOH solution, and add 120g Nacl, stirred and reacted in an ice-water bath until sulfonated monomer crystals formed, dissolved sulfonated monomer crystals in a mixed solution of 80% (v / v) isopropanol and deionized water, purified at 80°C to produce white crystals , filter the purified white crystals, and dry them in vacuum at 100°C for 24 hours to obtain sul...

Embodiment 2

[0086] 1. Preparation of sulfonated block copolymer (SPTES)-Nafion hybrid film:

[0087] 1) Synthesis of sulfonated monomer (SDFDPS): the volume of oleum with a volume fraction of 50% is 53mL, stirred and reacted at 165°C for 13h, adjusted the pH value to 7, added 123g NaCl, and the obtained sulfonated monomer crystals were dissolved In 83% (v / v) isopropanol and deionized water mixed solution, purified at 85°C, and vacuum dried at 103°C after purification, other conditions were the same as in Example 1.

[0088] 2) Synthesis of sulfonated block copolymer (SPTES):

[0089] ①Synthesis of non-sulfonated copolymer block A: add 110mL dimethylacetamide, stir for 1.5h, heat up to 103°C and stir for 1.5h, then add 43mL toluene, stir for 2.5h at 123°C, heat up to React at 145°C for another 2.5h, then raise the temperature to 163°C for 3.5h, precipitate the copolymer with a mixture of 2:1 (v / v) methanol and deionized water, and extract it with methanol for 50h, then at 85°C Under vacu...

Embodiment 3

[0106] 1. Preparation of sulfonated block copolymer (SPTES)-Nafion hybrid film:

[0107] 1) Synthesis of sulfonated monomer (SDFDPS): the volume of oleum with a volume fraction of 50% is 55mL, stirred and reacted at 170°C for 14h, adjusted the pH value to 7, added 125g NaCl, and the obtained sulfonated monomer crystallized It was dissolved in a mixed solution of 85% (v / v) isopropanol and deionized water, purified at 90° C., and vacuum-dried at 105° C. after purification. Other conditions were the same as in Example 1.

[0108] 2) Synthesis of sulfonated block copolymer (SPTES):

[0109] ① Synthesis of non-sulfonated copolymer block A: add 120mL dimethylacetamide, stir for 2h, heat up to 105°C and stir for 2h, then add 45mL toluene, stir for 3h at 125°C, heat up to 150°C and then React for 3 hours, then raise the temperature to 165° C. for 4 hours, extract with methanol for 52 hours, and then vacuum dry at 90° C. for 26 hours. Other conditions are the same as in Example 1.

...

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Abstract

The invention relates to a biomimetic structure type polymer actuator. The biomimetic structure type polymer actuator is composed of a layer of polymer film and metal electrodes covering two sides of the polymer film, wherein the polymer film is a sulfonated block copolymer-Nafion hybrid film; the sulfonated block copolymer-Nafion hybrid film is prepared through the following steps: firstly synthesizing a sulfonated block copolymer, preparing a nanometer fiber film by statically spinning a sulfonated block copolymer solution, compounding the film with a Nafion solution, casting, standing and drying. The invention further provides a preparation method of the biomimetic structure type polymer actuator, the sulfonated block copolymer-Nafion hybrid film is subjected to earlier stage processing, ion exchange reaction, main chemical plating reaction, lithium ion substitution and clipping so as to obtain the actuator. The structure biomimetic polymer actuator disclosed by the invention has the advantages of being low in cost, stable in performance and biomimetic in structure.

Description

technical field [0001] The invention relates to the field of intelligent materials, in particular to a polymer actuator with a bionic structure and a preparation method thereof. Background technique [0002] Electroactive Polymers (EAP) is a class of materials that can produce various forms of mechanical responses through changes in the internal structure of materials induced by an external electric field, and can realize the mutual conversion of electrical energy and mechanical energy. The form of EAP response can be stretching, bending, tightening or expansion, etc., so that mechanical functions such as traction and fastening can be realized. EAP can be divided into two types according to the form of external stimuli: (1) affected by electric field or Coulomb force; (2) electrically driven polymers deformed by the diffusion of ions in the material. The first type of polymer is called Electronic EAP. Although the material of this type of EAP is soft, the electric field dri...

Claims

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Application Information

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IPC IPC(8): D06M15/256D06M11/13D06M11/83D04H1/728D04H1/4326C08G81/00C08G75/23C23C18/44D06M101/30
Inventor 王选伦黄伟九盛旭敏杨朝龙夏天
Owner CHONGQING UNIV OF TECH
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