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A kind of preparation method of bionic intelligent flexible actuator

A flexible drive, bionic technology, applied in the field of materials, to achieve the effect of low preparation cost, high-efficiency movement form, and rapid swelling

Inactive Publication Date: 2020-09-01
JILIN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Using lower-cost graphene oxide as the light-to-heat conversion agent, breaking through the traditional form of light-to-heat conversion, innovatively adopting the "overall impregnation" and "partial impregnation" forms to solve the problem of controllable deformation of flexible actuators, combined with the corresponding The unique bionic structure design realizes the real bionic movement

Method used

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  • A kind of preparation method of bionic intelligent flexible actuator
  • A kind of preparation method of bionic intelligent flexible actuator
  • A kind of preparation method of bionic intelligent flexible actuator

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Comparison scheme
Effect test

Embodiment 1

[0022] see figure 1 and figure 2 As shown, the "carton" type bionic intelligent flexible actuator is prepared by "partial impregnation" method:

[0023] N-isopropylacrylamide was selected as the monomer, 4-hydroxybutyl acrylate was used as the crosslinking agent, ammonium persulfate was used as the initiator, graphene oxide was used as the photothermal conversion agent, and 808nm near-infrared laser was used as the control source. The mass of the monomer is 1g-2g; the volume of the cross-linking agent is 200μL-400μL; the quality of ammonium persulfate is 10mg-20mg, and the concentration of the graphene oxide aqueous solution is 4mg / mL-5mg / mL. Add the monomer and initiator into distilled water, and fully dissolve under the stirring action of a magnetic stirrer, then add the crosslinking agent, then stir for 5min~6min, filter, put it into the reaction kettle, and react under the condition of 190℃~200℃ After 5-6 hours, cut the prepared hydrogel into a cross shape, and use filt...

Embodiment 2

[0025] see figure 1 and image 3 As shown, the "palm" type bionic intelligent flexible actuator was prepared by the "partial impregnation" method

[0026] N-isopropylacrylamide was selected as the monomer, 4-hydroxybutyl acrylate was used as the crosslinking agent, ammonium persulfate was used as the initiator, graphene oxide was used as the photothermal conversion agent, and 808nm near-infrared laser was used as the control source. The mass of the monomer is 1g-2g; the volume of the cross-linking agent is 200μL-400μL; the quality of ammonium persulfate is 10mg-20mg, and the concentration of the graphene oxide aqueous solution is 4mg / mL-5mg / mL. Add the monomer and initiator into distilled water, and fully dissolve under the stirring action of a magnetic stirrer, then add the crosslinking agent, then stir for 5min~6min, filter, put it into the reaction kettle, and react under the condition of 190℃~200℃ After 5-6 hours, cut the prepared hydrogel into the shape of a palm, fully...

Embodiment 3

[0028] see figure 1 and Figure 4As shown, the "chrysanthemum" type bionic intelligent flexible actuator was prepared by the "integral impregnation" method

[0029] N-isopropylacrylamide was selected as the monomer, 4-hydroxybutyl acrylate was used as the crosslinking agent, ammonium persulfate was used as the initiator, graphene oxide was used as the photothermal conversion agent, and 808nm near-infrared laser was used as the control source. The mass of the monomer is 1g-2g; the volume of the cross-linking agent is 200μL-400μL; the quality of ammonium persulfate is 10mg-20mg, and the concentration of the graphene oxide aqueous solution is 4mg / mL-5mg / mL. Add the monomer and initiator into distilled water, and fully dissolve under the stirring action of a magnetic stirrer, then add the crosslinking agent, then stir for 5min~6min, filter, put it into the reaction kettle, and react under the condition of 190℃~200℃ After 5-6 hours, the prepared hydrogel sheet is fully absorbed w...

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Abstract

The invention discloses a preparation method of bionic intelligent flexible drivers. The preparation method is characterized by comprising steps as follows: thermosensitive hydrogel with fast responseis taken as a base material and subjected to a hydro-thermal synthesis reaction, and a structure form with gradient micropore size in the thickness direction is prepared; by means of overall impregnation and local impregnation of graphene oxide and combination with corresponding bionic structure design, a series of bionic intelligent flexible drivers which realize near infrared light control andhave fast response are prepared. Static deformation such as carton folding, finger and palm deformation and chrysanthemum opening and closing and dynamic motion such as inchworm crawling are realized.The bionic intelligent flexible drivers prepared with the method are wide in application range, high in response rate and low in preparation cost, forms of motion are diversified and efficient, and an effective new thought is provided for design and preparation of the flexible drivers with both response rate and deformability.

Description

technical field [0001] The invention relates to the field of materials, in particular to a preparation method of a bionic intelligent flexible driver. [0002] technical background [0003] Compared with traditional actuators with complex mechanical structures, flexible actuators rely on the intelligent response of flexible materials under conditions such as temperature, light, and current, and can achieve complex and intelligent mechanical deformations through simple structures, including swimming, jumping, etc. , many bionic movements including catching and crawling. This makes flexible actuators ideal materials for designing and manufacturing soft robots, artificial muscles. As one of the most widely used flexible materials, near-infrared laser-driven hydrogels have been widely used in medical science, soft electronics and other fields due to the advantages of high biocompatibility, intelligent water absorption and non-contact control. . However, the current near-infrar...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08F220/54C08J7/06C08J3/075C08L33/24C08F220/20C08F2/44C08K3/04
CPCC08F2/44C08F220/54C08J3/075C08J7/06C08J2333/24C08K3/042C08F220/20
Inventor 赵骞梁云虹张志辉韩志武任露泉
Owner JILIN UNIV
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