Composite fiber as well as preparation method and application thereof

A composite fiber and fiber technology, applied in the field of material science, can solve problems such as solvent evaporation, poor dimensional stability, and easy short circuit
CN112680966AActive Publication Date: 2021-04-20SUZHOU INST OF NANO TECH & NANO BIONICS CHINESE ACEDEMY OF SCI
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
SUZHOU INST OF NANO TECH & NANO BIONICS CHINESE ACEDEMY OF SCI
Publication Date
2021-04-20

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Abstract

The invention discloses composite fiber as well as a preparation method and application thereof. The composite fiber comprises conductive fiber and a nanofiber sheath layer coating the surface of the conductive fiber, wherein the nanofiber sheath layer comprises a three-dimensional porous structure formed by interweaving polymer nanofibers, and the three-dimensional porous structure is filled with ionic liquid. The ionic liquid adopted by artificial muscle fiber provided by the invention is room-temperature molten salt, is low in vapor pressure, not easy to volatilize and wide in electrochemical window, is less affected by solvent evaporation compared with an organic or inorganic electrolyte used at present, and can stably work in air; and an electrolyte layer is formed by adopting an ionic liquid-filled nanofiber network, so that the use stability of the electrochemical artificial muscle fiber in the air can be ensured, and the service life is greatly prolonged.
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Description

technical field

[0001] The invention relates to an artificial muscle fiber, in particular to a composite fiber and its preparation method and application, belonging to the technical field of material science. Background technique

[0002] Similar to biological muscles, artificial muscles have the characteristics of large contractile stress, high power density and high energy density, and have the characteristics of weaving and integration. In recent years, they have received extensive attention in the field of mechanical exoskeletons and soft robots. In many artificial muscles Among them, electrochemical artificial muscles have attracted widespread interest due to their low operating voltage, no obvious thermal effect, and no limitation of Carnot efficiency.

[0003] Foroughi et al. first reported the twisted multi-walled carbon nanotube artificial muscle, which can produce 1 when stimulated at a voltage of 5V (vs. % shrinkage, by continuing to increase the fiber twist to f...

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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