Carbon fiber-based intelligent fabric and preparation method thereof

A carbon fiber and carbon fiber material technology, applied in the field of strain sensing materials, can solve the problems of poor bonding force and unsatisfactory sensitivity of flexible strain sensors.

Active Publication Date: 2021-04-06
WUHAN TEXTILE UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Based on this, it is necessary to solve the technical problem that the sensitivity of the flexible strain sensor prepared by the method of coating the elastic fiber with the graphite conductive sheet layer cannot meet the practical application due to the poor bonding force between the carbon material such as graphite and the elastic fiber interface. A carbon fiber-based smart fabric and its preparation method

Method used

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  • Carbon fiber-based intelligent fabric and preparation method thereof
  • Carbon fiber-based intelligent fabric and preparation method thereof
  • Carbon fiber-based intelligent fabric and preparation method thereof

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preparation example Construction

[0034] The second aspect of the present invention also proposes a method for preparing the above-mentioned carbon fiber-based smart fabric. The preparation method includes the following steps:

[0035] The carbon fiber dispersion preparation step comprises dispersing the carbon fibers in an organic solvent and adding water to obtain a carbon fiber dispersion;

[0036] The resin-coated carbon fiber material preparation step is to mix the coated resin monomer with the carbon fiber dispersion to react, and dry to constant weight to obtain the resin-coated carbon fiber material;

[0037] The functional slurry preparation step is to mix the resin-coated carbon fiber material with the interface bonding material to prepare the functional slurry;

[0038] The preparation step of the carbon fiber-based smart fabric includes arranging the functional slurry on the fabric through a foam method, and preparing the carbon fiber-based smart fabric after curing.

[0039] The preparation metho...

Embodiment 1

[0053] Disperse 10g of short carbon fibers in 100mL of petroleum ether, drop 1mL of Span-80 at the same time, stir magnetically until uniformly dispersed, and heat up the dispersion solution to 60°C for 1.0h to form a uniform short carbon fiber dispersion.

[0054] 1 g of toluene-2,4-diisocyanate was added to the short carbon fiber dispersion and mixed. After reacting for 1 hour, the obtained solid was dried to a constant weight to obtain a polyurea resin-coated carbon fiber.

[0055] Mix polyurea resin-coated carbon fiber with anionic water-based polyurethane at a mass ratio of 8:2, and form a uniform solution by magnetic stirring to obtain a functional slurry.

[0056] Put the nylon spandex elastic fabric in a Soxhlet extractor containing acetone solution, gradually increase the temperature of the acetone solution from 0°C to 50°C, and circulate and reflux at 50°C for 2 hours, then dry the nylon spandex elastic fabric Pretreated nylon spandex elastic fabric.

[0057] The fu...

Embodiment 2

[0066] Disperse 10g of short carbon fibers in 200mL of petroleum ether, drop in 3mL of Span-80 at the same time, magnetically stir until uniformly dispersed, and heat up the dispersion solution to 40°C for 0.5h to form a uniform short carbon fiber dispersion.

[0067] 1.5 g of toluene-2,4-diisocyanate was added to the short carbon fiber dispersion and mixed. After reacting for 1 hour, the obtained solid was dried to a constant weight to obtain a polyurea resin-coated carbon fiber.

[0068] Mix polyurea resin-coated carbon fiber with anionic water-based polyurethane at a mass ratio of 7:3, and form a uniform solution by magnetic stirring to obtain a functional slurry.

[0069] Put the nylon spandex elastic fabric in a Soxhlet extractor containing acetone solution, gradually increase the temperature of the acetone solution from 0°C to 70°C, and circulate and reflux at 70°C for 5 hours, then dry the nylon spandex elastic fabric Pretreated nylon spandex elastic fabric.

[0070] T...

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Abstract

The invention provides a carbon fiber-based intelligent fabric. The carbon fiber-based intelligent fabric comprises a fabric layer and a strain functional layer, the strain functional layer is prepared from functional slurry with conductivity, and the functional slurry comprises a resin-coated carbon fiber material and an interface bonding material. According to the carbon fiber-based intelligent fabric, the resin-coated carbon fiber is adopted as a conductive material, the compatibility between the resin-coated carbon fiber and the interface bonding material is enhanced, so that the interface bonding force between the prepared strain functional layer and the fabric is remarkably improved, then the sensitivity of a strain sensor prepared on the basis of the carbon fiber-based intelligent fabric is greatly improved, and the requirements of practical application are met.

Description

technical field [0001] The invention relates to the technical field of strain sensing materials, and relates to a carbon fiber-based smart fabric and a preparation method thereof. Background technique [0002] With the rapid development of smart wearable electronic devices, flexible sensors have attracted extensive attention. They herald a new development direction for the functionality and ductility of electronic devices, and have potential applications in smart textiles, soft robotics, and real-time structural health monitoring. For stretchable sensors, no matter what method is used, conductive materials must be placed on flexible substrates to achieve the maximum effect, but there are generally disadvantages such as low sensitivity and unstable performance under multiple deformations. Therefore, seeking to design a preparation method suitable for flexible fabric substrates and stretchable strain sensors with good stability has good practical significance and economic valu...

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
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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06N3/14D06N3/00G01B7/16
CPCD06N3/14D06N3/0063D06N3/0034D06N3/0025D06N3/0088G01B7/18D06N2209/041D06N2209/10Y02P70/62
Inventor 毕曙光姜伟冬蔡光明冉建华倪丽杰权衡
Owner WUHAN TEXTILE UNIV
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