Fiber-based torsion actuator with stimulative responsibility to light, heat and humidity and preparation method and application thereof

Abstract

The invention discloses a fiber-based torsion actuator with stimulative responsibility to light, heat and humidity and a preparation method and application thereof, and belongs to the technical fieldof functional materials. The fiber-based torsion actuator is prepared by mixing graphene oxide powder, sodium alginate powder and deionized water with mass ratio of (0.05-0.2): 1: (25-40) and spinningand twisting, wherein the fiber-based torsion actuator performs reversible rotational driving motion on near-infrared light irradiation of which the wavelength is 780-1100 nm and the light intensityis 100-500 mW/cm<2>, rotation is performed with 30-125 laps, and the rotation speed is 90-520 rpm/m; the fiber-based torsion actuator performs reversible rotational driving motion on the external environment of which the relative humidity is 40%-80%, rotation is performed with 250-330 laps, and the rotation speed is 4000-10000 rpm/m. The sodium alginate and graphene oxide in the fiber-based torsion actuator play a cooperative role, so that the fiber-based torsion actuator has a better application prospect in intelligent driving materials with stimulative responsibility to the light and heat orhumidity.

Description

technical field [0001] The invention relates to a torsional actuator, which belongs to the technical field of functional materials, and in particular relates to a fiber-based torsional actuator with stimuli responsiveness to light, heat and humidity, its preparation method and application. Background technique [0002] Smart material is a new type of functional material that can perceive external stimuli, judge and make appropriate processing, such as accompanying some responsive behaviors of its own. Smart materials start with functional materials, but their performance and application prospects are much higher than functional materials. As a new type of functional material, flexible actuators are an indispensable and important part of smart materials. [0003] Flexible driving materials include one-dimensional fiber driving materials, two-dimensional thin film driving materials and three-dimensional gel driving materials. Among them, the one-dimensional fiber-based actua...

AI Technical Summary

Problems solved by technology

That is to say, the invention patent application elaborates on the twist-spun nanofiber yarn or twist-inserted polymer fiber that responds to the stimulus response to the temperature change of the external environment, but does not mention the flexible actuator that produces torsional response to the external environment water stimulus

[0006] Therefore, there are currently no flexible actuator fiber materials that can simultaneously respond to light, heat, and humidity changes in the environment.

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