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Preparation method of graphene-based actuating material for smart clothing

A graphene-based, actuating material technology, applied in nanotechnology, nanotechnology, nanotechnology and other directions for materials and surface science, can solve the problems of limiting the application of actuating materials, long response time, harsh stimulation conditions, etc. To achieve the effect of controllable deformation degree, rapid response and good flexibility

Inactive Publication Date: 2016-09-28
DONGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Although the above actuation materials can show greater deformability under certain external stimuli, the stimulus conditions are harsh (such as ultraviolet light stimulation and high temperature stimulation, etc.) and the response time is long (Adv.Mater.2013,25,4466– 4469, Langmuir 2013, 29, 14919-14925) and other shortcomings greatly limit the application of this type of actuation material in the field of smart clothing

Method used

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  • Preparation method of graphene-based actuating material for smart clothing
  • Preparation method of graphene-based actuating material for smart clothing
  • Preparation method of graphene-based actuating material for smart clothing

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Effect test

Embodiment 1

[0037] Graphene oxide is prepared by the method reported in the literature (Journal of the American Chemical Society 1958,80,1339-1339.), 5 mg graphene oxide powder is dispersed in deionized water, and is ultrasonicated for 0.5 hour with a cell pulverizer to obtain brown half Transparent graphene oxide aqueous solution (such as figure 1 Shown), the analysis by scanning probe microscopy shows that the thickness of graphene oxide prepared by this method is about 1nm, which is a single-layer graphene with good quality. 0.05 mg of dopamine powder was added to the graphene oxide dispersion at one time, and magnetically stirred for 1 hour to make the dopamine molecules and the graphene surface functional groups fully and uniformly contact. Then use Tris buffer substance to adjust the pH of the mixed solution to about 8.5, and continue to stir for 6 hours. After the solution changes from brown transparent to black opaque, the self-polymerization grafting reaction is completed, and g...

Embodiment 2

[0039] Graphene oxide was prepared by the method reported in the literature (Journal of the American Chemical Society 1958,80,1339-1339.), disperse 3 mg graphene oxide powder into N,N-dimethylformamide, and use a cell pulverizer to sonicate After 0.5 hour, a brown translucent graphene oxide solution was obtained. Add 0.1 mg of small molecule glycoprotein to the graphene oxide dispersion at one time, stir magnetically for 1 hour, adjust the pH to 8.5, and continue stirring to obtain grafted graphene oxide. Grafted graphene oxide is washed and prepared as a solution or slurry with a concentration of 8mg / mL, and then the grafted graphene oxide is sprayed onto the surface of the polyimide film, due to the hydrophilicity of the grafted graphite oxide properties and the hydrophobicity of polyimide, the two parts of the film show different responses to temperature changes, the grafted graphene oxide part of the film can absorb a large amount of moisture in the air, and the moisture i...

Embodiment 3

[0041] Graphene oxide is prepared by the method reported in the literature ((Journal of the American Chemical Society 1958,80,1339-1339.), 100mg graphene oxide powder is dispersed in deionized water of 50mL, and ultrasonic 1.5 hours is obtained with cell pulverizer. Brown graphene oxide aqueous solution. The above solution is divided into two 50mL solutions, 0.5mg of dopamine powder is added to 50mL graphene oxide dispersion at one time, magnetically stirred for 1 hour, and then the mixed solution is adjusted with Tris buffer substance pH to about 8.5, continue to stir for 6 hours, and the self-polymerization grafting reaction is completed when the solution turns from brown transparent to black. The grafted graphene oxide is washed and prepared as a solution or slurry with a concentration of 25 mg / mL, and then used The wet spinning coagulation bath method blends two kinds of graphite oxide before grafting and after grafting into a fiber, and can controlly program a fiber by con...

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Abstract

The invention discloses a preparation method of a graphene-based actuating material for smart clothing. The preparation method comprises carrying out ultrasonic treatment on graphite oxide to obtain a graphite oxide dispersion liquid, adding hydrophilic molecules into the graphite oxide dispersion liquid, adjusting pH to 7.5-9.5, carrying out stirring to obtain grafting-modified graphene oxide, washing the graphene oxide, preparing a solution or slurry with a concentration of 0.001-100mg / mL, compounding the solution or slurry and a water inert material, carrying out drying to obtain an actuating unit and carrying out graphical processing on the actuating unit. The graphene-based actuating material for smart clothing can be further used for costume designing, can be used as a pore microswitch and can realize body surface temperature and humidity self-management.

Description

technical field [0001] The invention belongs to the field of preparation of smart materials, in particular to a preparation method of a graphene-based actuating material used for smart clothing. Background technique [0002] Smart materials belong to the category of bionic materials. They are a kind of information that can obtain information about environmental conditions and their changes, and then make judgments, process them, and make responses that change their own structure and functions and coordinate them well with the outside world. As a typical smart material, actuation materials show great application prospects in the fields of artificial muscles, micromechanical systems, especially wearable devices. [0003] In recent years, with the development of material science, information science and other disciplines, smart wearable devices (such as Google glasses, Apple smart watches, Xiaomi bracelets, etc.) And there are few reports on smart clothing products that can re...

Claims

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Application Information

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IPC IPC(8): C01B31/04B82Y30/00
CPCB82Y30/00C01P2002/85
Inventor 张青红穆九柯郭洋王宏志李耀刚
Owner DONGHUA UNIV
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