Unlock instant, AI-driven research and patent intelligence for your innovation.

Preparation method of a self-responsive PVDF/graphene/elastic fabric composite sensor

A composite sensor and elastic fabric technology, applied in liquid/gas/steam textile material processing, textile material processing, removal of liquid/gas/steam, etc., can solve the problems of not being able to fully utilize the advantages of the complex and inconvenient application , to achieve the effect of getting rid of dependence and broad application prospects

Active Publication Date: 2019-07-23
DONGHUA UNIV
View PDF9 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the current graphene-based wearable sensors require additional power when tested on smart clothing, making it inconvenient to apply, and most graphene-based wearable sensors have a small amount of graphite Graphene threads are combined with large fabrics, which limits the application of graphene materials in smart clothing. These additional factors are not conducive to giving full play to the characteristics of graphene, and cannot give full play to the respective advantages of the composite.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Preparation method of a self-responsive PVDF/graphene/elastic fabric composite sensor
  • Preparation method of a self-responsive PVDF/graphene/elastic fabric composite sensor
  • Preparation method of a self-responsive PVDF/graphene/elastic fabric composite sensor

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] At room temperature, weigh 270 mg of graphite oxide and place it in a 50 mL beaker, then add 30 mL of deionized water to prepare a graphite oxide dispersion with a concentration of 9 mg / mL, then put the beaker into an ultrasonic instrument for ultrasonic treatment for 6 hours to obtain Graphene dispersion.

[0032] The elastic fabric composed of 5% spandex + 95% polyester was washed with deionized water, placed in an alcohol solution, then ultrasonically treated for 30 minutes, and then treated with oxygen plasma for 60 minutes. Immerse the treated elastic fabric in the above-mentioned graphene oxide dispersion, and the soaking time is 20min. Put the elastic fabric soaked in the graphite oxide dispersion into an oven set at 60° C. for 2 hours to obtain a graphene oxide / elastic fabric composite. The obtained graphene oxide / elastic fabric composite was reduced with hydroiodic acid for 1.5 h. The restored fabric was washed several times with ethanol and deionized water, ...

Embodiment 2

[0035] At room temperature, weigh 90 mg of graphite oxide and place it in a 50 mL beaker, then add 30 mL of deionized water to prepare a graphite oxide dispersion with a concentration of 3 mg / mL, and then put the beaker into an ultrasonic instrument for ultrasonic treatment for 6 hours to obtain Graphene dispersion.

[0036]The elastic fabric composed of 5% spandex + 95% polyester was washed with deionized water, placed in an alcohol solution, then ultrasonically treated for 30 minutes, and then treated with oxygen plasma for 60 minutes. Immerse the treated elastic fabric in the above-mentioned graphene oxide dispersion, and the soaking time is 20min. Put the elastic fabric soaked in the graphite oxide dispersion into an oven set at 60° C. for 2 hours to obtain a graphene oxide / elastic fabric composite. The obtained graphite oxide / elastic fabric composite was reduced with hydroiodic acid for 1.5 hours. The restored fabric was washed several times with ethanol and deionized w...

Embodiment 3

[0039] At room temperature, weigh 450 mg of graphite oxide and place it in a 50 mL beaker, then add 30 mL of deionized water to make a graphite oxide dispersion with a concentration of 15 mg / mL, and then put the beaker into an ultrasonic instrument for ultrasonic treatment for 6 hours to obtain Graphene dispersion.

[0040] The elastic fabric composed of 5% spandex + 95% polyester was washed with deionized water, placed in an alcohol solution, then ultrasonically treated for 30 minutes, and then treated with oxygen plasma for 60 minutes. Immerse the treated elastic fabric in the above-mentioned graphene oxide dispersion, and the soaking time is 20min. Put the elastic fabric soaked in the graphite oxide dispersion into an oven set at 60° C. for 2 hours to obtain a graphene oxide / elastic fabric composite. The obtained graphite oxide / elastic fabric composite was reduced with hydroiodic acid for 1.5 hours. The restored fabric was washed several times with ethanol and deionized w...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
concentrationaaaaaaaaaa
Login to View More

Abstract

The invention relates to a self-responsive PVDF / graphene / elastic fabric composite sensor preparation method, which comprises the following steps: immersing the pre-treated elastic fabric into oxidized graphene dispersion; placing it in still, taking out the elastic fabric and drying it for an oxidized grapheme / elastic fabric compound; performing reduction process to the oxidized grapheme / elastic fabric compound; cleaning it and drying it for grapheme / elastic fabric compound; immersing the grapheme / elastic fabric compound into the polyvinylidene fluoride PVDF solution; taking the compound out and drying it; and conducting 10-20kV polarization for 4-15 hours for the self-responsive PVDF / grapheme / elastic fabric composite sensor. The method is simple to perform and the self-responsive PVDF / grapheme / elastic fabric composite sensor obtained from the method does not require additional power supply support. Due to its high sensitivity, stretching performance and cycling stability, the sensor can be widely applied in smart clothing.

Description

technical field [0001] The invention belongs to the field of preparation of graphene composite materials, in particular to a preparation method of a self-responsive PVDF / graphene / elastic fabric composite sensor. Background technique [0002] "Basic clothing, food, housing, and transportation", as the "clothing" that ranks first in human instinctive social activities, is now far more than simply "wrapping the body". Clothing is not only beautiful and decent in style, but also pays attention to the comfort of wearing, the expression of personality and multi-functionality. integration. The most important task of the technological development of the clothing industry in the next few years is to use high-tech and information technology to change and enhance the traditional clothing functions, which will be mainly reflected in the research and development of smart clothing. Smart clothing is a product that emerged with the development of science and technology. It integrates mult...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): G01D21/00D06B3/10D06B13/00D06B15/00D06M10/02D06M11/74D06M15/256
CPCD06B3/10D06B13/00D06B15/00D06M10/025D06M11/74D06M15/256D06M2101/32D06M2101/38G01D21/00
Inventor 侯成义刘宇飞时秋伟李耀刚王宏志张青红
Owner DONGHUA UNIV