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High-elasticity conductive fiber and preparation method thereof

A conductive fiber, highly elastic technology, applied in the direction of fiber type, fiber treatment, textile and paper making, etc., to achieve good dispersion effect

Active Publication Date: 2015-04-08
SHANGHAI INST OF CERAMIC CHEM & TECH CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0029] The invention aims to overcome the defects of the existing elastic conductor preparation method, and the invention provides an ultra-high elastic conductive fiber and a preparation method thereof

Method used

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  • High-elasticity conductive fiber and preparation method thereof
  • High-elasticity conductive fiber and preparation method thereof

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preparation example Construction

[0073] The preparation method of the ultra-high elastic conductive fiber in the present invention is as follows: metal nanowires (copper nanowires or silver nanowires) are dispersed in an ethanol solution containing PVP or cetylamine to form a high-concentration dispersion with a concentration of 1-20mg / ml. Soak the pretreated cotton spandex fiber (diameter ~600μm) in the metal nanowire dispersion for 5 seconds and take it out. After drying, continue to repeat the same operation to improve the metal nanowire on the surface of the composite fiber. content, after the coating of metal nanowires is completed, the elastic composite fiber is treated with hydrogen plasma, and finally the method of in-situ polymerization and curing is adopted. The elastic composite fiber is immersed in liquid PDMS for 3 seconds and then taken out. Under heating for 2-10 hours for polymerization and curing, the preparation process is completed.

[0074] The invention also provides a highly elastic co...

Embodiment 1

[0084] After cleaning the cotton spandex double-covered yarn, use oxygen plasma treatment (100W, 10min), and then dip and coat in the silver nanowire ethanol dispersion (adding a small amount of PVP) with a concentration of 20mg / ml for 2 times, each dipping time 3 seconds, then use hydrogen plasma treatment (100W, 10min), and finally soak in liquid PDMS for 5s, then take it out for thermal polymerization and curing (80°C, 4h), that is, the preparation process is completed, and the prepared elastic fiber has a conductivity of 100S / cm .

Embodiment 2

[0086] Cotton spandex double-covered yarn is cleaned and treated with oxygen plasma (200W, 5min), and then dipped and coated 10 times in the silver nanowire ethanol dispersion (adding a small amount of PVP) with a concentration of 20mg / ml. 3 seconds, then use hydrogen plasma treatment (200W, 5min), and finally soak in liquid PDMS for 5s, then take it out for thermal polymerization and curing (100°C, 2h), that is, the preparation process is completed, and the electrical conductivity of the prepared elastic fiber is 750S / cm .

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Abstract

The invention relates to a high-elasticity conductive fiber and a preparation method thereof. The preparation method includes that firstly, elastic yarns are subjected to preprocessing, secondly, a metal nanowire dispersion liquid is used for impregnating and coating the preprocessed elastic yarns and metal nanowires can be adsorbed to the surface of the elastic yarns, and thirdly, the elastic yarns with the metal nanowires adsorbed to the surface are subjected to hydrogen plasma processing or thermal processing.

Description

technical field [0001] The invention relates to an ultra-high elastic conductive fiber and a preparation method thereof, belonging to the field of flexible and stretchable electronics and the field of new material technology. Background technique [0002] The development trend of traditional electronics is miniaturization and integration, while the latest development trend and development requirements of current electronics are flexibility, scalability and wearability [References 1,2]. Flexible and stretchable electronics have received extensive attention from researchers and have achieved a series of application progress, such as flexible touch-screen displays, bendable and stretchable electronic element arrays, flexible pressure sensors and strain sensors [Reference 3- 5]. The realization of these application devices often requires the use of elastic conductors as stretchable circuit connections. The existing preparation methods of elastic conductors are mainly divided i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06M11/83D06M10/00D06M101/38
Inventor 孙静程荫王冉冉高濂
Owner SHANGHAI INST OF CERAMIC CHEM & TECH CHINESE ACAD OF SCI
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