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Photostimulation-responsive nanometer composite fiber and preparation method thereof

A nano-composite fiber and responsive technology, applied in the direction of fiber chemical characteristics, rayon manufacturing, single-component synthetic polymer rayon, etc., can solve the problems of small output force, cumbersome preparation method, slow response, etc. The effect of dynamic output, simple preparation process, and fast reaction into fiber

Active Publication Date: 2014-01-22
HUBEI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to overcome the defects of slow response, small output force, difficult remote control, and cumbersome preparation methods of existing materials that are not conducive to rapid production in micromechanical actuators constructed with existing materials, and to provide a light-stimulus-responsive nanometer Composite fiber and its preparation method

Method used

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  • Photostimulation-responsive nanometer composite fiber and preparation method thereof
  • Photostimulation-responsive nanometer composite fiber and preparation method thereof
  • Photostimulation-responsive nanometer composite fiber and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] (1) Add 10 mg of single-walled carbon nanotubes to 20 mL of acetone, and ultrasonicate at room temperature for 1 hour to obtain a black suspension;

[0033] (2) Add 2g of silicone rubber Sylgard-184 liquid component A to the suspension, continue ultrasonic dispersion at 50°C for 1h, then raise the temperature to 75°C and ultrasonically 0.5h to volatilize acetone, add 0.2g of silicone rubber Sylgard after cooling to room temperature -184 liquid component B, stir at room temperature for 30 minutes to obtain a uniform mixture;

[0034] (3) Use a syringe to draw 1mL of the homogeneous mixture, inject it into the simethicone oil preheated to 150°C, immediately observe the formation of black fibers, immerse in the hot silicone oil for 10min to completely solidify, and obtain a single wall containing 0.45wt%. Polysiloxane nanocomposite fibers of carbon nanotubes.

Embodiment 2

[0036] (1) Add 10 mg of multi-walled carbon nanotubes to 20 mL of acetone, and ultrasonicate at room temperature for 1 hour to obtain a black suspension;

[0037] (2) Add 2g of silicone rubber Sylgard-184 liquid component A to the suspension, continue ultrasonic dispersion at 50°C for 1h, then raise the temperature to 75°C and ultrasonically 0.5h to volatilize acetone, add 0.2g of silicone rubber Sylgard after cooling to room temperature -184 liquid component B, stir at room temperature for 30 minutes to obtain a uniform mixture;

[0038] (3) Use a syringe to draw 1mL of the homogeneous mixture, inject it into the simethicone oil preheated to 150°C, immediately observe the formation of black fibers, immerse in the hot silicone oil for 10min to completely solidify, and obtain 0.45wt% multi-walled Polysiloxane nanocomposite fibers of carbon nanotubes.

Embodiment 3

[0040] (1) Add 20 mg of multi-walled carbon nanotubes to 20 mL of acetone, and ultrasonicate at room temperature for 1 hour to obtain a black suspension;

[0041] (2) Add 2g of silicone rubber Sylgard-184 liquid component A to the suspension, continue ultrasonic dispersion at 50°C for 1h, then raise the temperature to 75°C and ultrasonically 0.5h to volatilize acetone, add 0.2g of silicone rubber Sylgard after cooling to room temperature -184 liquid component B, stir at room temperature for 30 minutes to obtain a uniform mixture;

[0042] (3) Use a syringe to draw 1mL of the homogeneous mixture, inject it into simethicone oil preheated to 150°C, immediately observe the formation of black fibers, immerse in hot silicone oil for 10min to completely solidify, and obtain 0.9wt% multiwall Polysiloxane nanocomposite fibers of carbon nanotubes.

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Abstract

The invention discloses a near-infrared laser-driven elastic nanometer composite fiber and a preparation method thereof. The composite fiber is prepared through in-situ polymerization of a carbon nanomaterial used as a filling material and silicone rubber used as a matrix, wherein a weight ratio of the carbon nanomaterial to the silicone rubber is 0.05-5: 100, and the carbon nanomaterial is a carbon nanotube, graphene or oxidized graphene. The composite fiber is rapidly prepared by using a reaction spinning method; the carbon nanomaterial is uniformly mixed with liquid silicone rubber, and then dispersion liquid is extracted and injected into a hot oil bath medium for a rapid cross-linking reaction to produce the composite fiber. According to the invention, the carbon nanomaterial is used to generate mechanical response after absorption of near infrared laser and to convert luminous energy into heat energy to trigger photoinduced deformation of polymer elastomer, and a carbon nanomaterial reinforced polymeric material improves output power of an actuator. The preparation method for the fiber is simple, has a fast fiber formation speed, enables fiber diameter to be controllable and regulates and controls optical actuating behaviors of the nanometer composite fiber by adjusting the amount of the filling material and laser power.

Description

technical field [0001] The invention relates to the fields of intelligent materials and polymer-based nanocomposite materials, in particular to a light-stimulus-responsive nanocomposite fiber and a preparation method thereof. Background technique [0002] Actuators (Actuators) refer to the actuators that deform under the stimulation of electricity, heat and light, and convert the corresponding electric energy, heat energy and light energy into mechanical energy. They are mainly used in micro-robots, micro-motors, sensors, inductive switches and artificial areas of muscle. At present, the development of electric actuators is relatively mature, but they face problems such as high driving voltage, low power coupling efficiency, short service life and difficult remote control. Polymer actuators built with light as the driving source have outstanding advantages: light energy is green energy, and light actuators do not need transmission components such as electricity, motors, and...

Claims

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Application Information

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IPC IPC(8): D01F6/94D01F1/10
Inventor 杨应奎彭仁贵王媛珍董晓利
Owner HUBEI UNIV
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