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MXene-based composite material as well as preparation method and application thereof

A composite material and substrate technology, applied in the coating and other directions, can solve the problems such as the inability to meet the multi-factor stimulus response, the inability to meet the application requirements of the actuator, and achieve the effects of excellent mechanical properties, large deformation, and simple preparation method.

Active Publication Date: 2022-01-25
BEIJING UNIV OF CHEM TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The above-mentioned double-layer actuator is only a single stimulus response actuator, which cannot meet the multi-factor stimulus response in a complex environment, is not suitable for an actual environment with complex factors, and cannot meet the application requirements of the actuator. Therefore, a high-sensitivity, Actuators that respond quickly and respond to multiple stimuli are highly desirable

Method used

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  • MXene-based composite material as well as preparation method and application thereof
  • MXene-based composite material as well as preparation method and application thereof
  • MXene-based composite material as well as preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] Step 1: Preparation of polyvinylidene fluoride (PVDF) substrate: Dissolve PVDF and polyvinylpyrrolidone (PVP) at a weight ratio of 20:1 in N,N-dimethylformamide (DMF) at a concentration of 25 mg / mL of the mixed solution, fully stirred at room temperature for 3 hours, took 10mL of the mixed solution in a watch glass with a diameter of 60mm, put it in a vacuum oven at 80°C and heated and cured for 1 hour, and a transparent PVDF substrate could be obtained on the watch glass;

[0035] Step 2: Prepare MXene-PEDOT / PSS mixed solution: mix 10mol / L monolithic MXene solution with PEDOT:PSS (poly(3,4-ethylenedioxythiophene polyphenylene)-ethylene sulfonate), polyvinyl alcohol Mix according to the volume ratio of 5:5:2 and carry out stirring and ultrasonication for 1h to prepare a mixed solution;

[0036] Step 3: Take 5 mL of the MXene-PEDOT / PSS mixed solution obtained in Step 2 and apply it to the watch glass covered with PVDF substrate in Step 1, and dry it in an oven at 60°C f...

Embodiment 2

[0039] Step 1: Prepare PVDF substrate: Dissolve PVDF and polyvinylpyrrolidone (PVP) at a weight ratio of 20:1 in N,N-dimethylformamide (DMF) to prepare a mixed solution with a concentration of 25mg / mL at room temperature Fully stir for 3 hours under high temperature, take 10mL of the mixed solution in a watch glass with a diameter of 60mm, put it in a vacuum oven at 80°C and heat and cure for 1 hour, and a transparent PVDF substrate can be obtained on the watch glass;

[0040] Step 2: Prepare MXene-PEDOT:PSS mixed solution: Mix 10mol / L monolithic MXene solution with PEDOT:PSS and polyvinyl alcohol in a ratio of 4:1:1 by volume and stir and sonicate for 1h to prepare the mixed solution solution;

[0041] Step 3: Take 5 mL of MXene-PEDOT:PSS mixed solution and apply it on the watch glass, and dry it in an oven at 60°C for 1 hour to obtain the MXene composite material;

[0042] Step 4: After drying, the watch glass is cooled, and the double-layer film is peeled off from the watc...

Embodiment 3

[0044] Step 1: Prepare PVDF substrate: Dissolve PVDF and polyvinylpyrrolidone (PVP) at a weight ratio of 20:1 in N,N-dimethylformamide (DMF) to prepare a mixed solution with a concentration of 25mg / mL at room temperature Fully stir for 3 hours under high temperature, take 10mL of the mixed solution in a watch glass with a diameter of 60mm, put it in a vacuum oven at 80°C and heat and cure for 1 hour, and a transparent PVDF substrate can be obtained on the watch glass;

[0045] Step 2: Prepare MXene-PEDOT:PSS mixed solution: Mix 10mol / L monolithic MXene solution with PEDOT:PSS and polyvinyl alcohol in a ratio of 3:2:1 by volume, stir and sonicate for 1h to prepare the mixed solution solution;

[0046] Step 3: Take 5 mL of MXene-PEDOT:PSS mixed solution and apply it to the above-mentioned watch glass, and dry it in an oven at 60°C for 1 hour to obtain the MXene composite material;

[0047] Step 4: After drying, the watch glass is cooled, and the double-layer film is peeled off ...

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Abstract

The invention discloses an MXene-based composite material and an actuator thereof disclosed by the invention. An emerging two-dimensional material MXene composite material is combined with a traditional conductive polymer, and excellent photo-thermal conversion performance and moisture absorption performance are shown, so that multiple responsiveness of photo-thermal and humidity is realized. The double-layer actuator with photo-thermal and humidity response is prepared by utilizing a simple synthesis method, illumination bending can be realized, and humidity response can be realized by simulating a dynamic process of plant flowering. According to the experimental method, a relatively good experimental effect can be achieved by avoiding complex synthesis steps, and a method is provided for a soft robot to realize multi-factor response.

Description

technical field [0001] The invention belongs to the field of composite materials, and in particular relates to a composite material based on MXene and its preparation method and application. Background technique [0002] As a new type of functional material, MXene has received extensive attention. In 2011, Drexel University in the United States (Lukatskaya MR, Mashtalir O, Ren CE, et al. Cation intercalation and high volumetric capacitance of two-dimensional titanium carbide [J]. Science, 2013, 341 (6153): 1502-1505.) engraved by HF Corroded ternary layered carbide Ti 3 C 2 T x , prepared a new type of two-dimensional carbide crystal Ti 3 C 2 T x , where T x Indicates surface groups such as -F and -OH. This new type of transition metal carbide or carbonitride with a two-dimensional graphene-like layered structure is called MXene, which is usually selectively etched by an etchant to the layer A in the ternary layered precursor MAX ceramic phase A two-dimensional mate...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08J7/04C08J5/18C08L27/16C08L39/06C09D165/00C09D125/18C09D129/04C09D7/61
CPCC08J7/0427C08J5/18C09D165/00C09D125/18C09D7/61C09D7/70C08J2327/16C08J2439/06C08J2465/00C08J2425/18C08L29/04C08K7/00
Inventor 万鹏博李娜王璐萌
Owner BEIJING UNIV OF CHEM TECH
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