Rapid photo-thermal response shape memory driver as well as preparation method and application thereof

A photothermal response and driver technology, applied in textiles and papermaking, fiber processing, fiber types, etc., can solve the problems of high market price and unfavorable industrial promotion and use, and achieve excellent mechanical properties, enhanced mechanical properties, and high sensitivity.

Active Publication Date: 2021-05-28
GUANGDONG UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the high market price of MXene materials is not conducive to its industrial promot

Method used

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  • Rapid photo-thermal response shape memory driver as well as preparation method and application thereof
  • Rapid photo-thermal response shape memory driver as well as preparation method and application thereof
  • Rapid photo-thermal response shape memory driver as well as preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0041]Example 1

[0042](1) Preparation of MC-1 Films

[0043]The TG-SMPU electrospun film is cut off 40 mm × 40 mm size, heating is heated, and the pre-stretch ratio is 20%. A aqueous solution of 0.8 ml of a concentration of 5 mg / ml of MXENE, and 0.4 ml of concentration of 10 mg / ml of CNCs were mixed in the centrifuge tube, and the aqueous solution of MXENE / CNCs was mixed, and evenly applied to the electrospun film. In the infrared lamp, the MC-1 composite film can be obtained with a film thickness of about 100 μm. Such asfigure 1 As shown, the CNC having a large steel strength is mixed with MXENE, the original MXENE fragmentation, which will advantageously be reflected in the layer between the sheets to improve the light heat conversion efficiency. The morphology of the MC-1 composite film is characterized by scanning electron microscopy, such asfigure 2 As shown, MXENE and CNCs deposited the voids and surfaces of the electrospinning fiber membrane.

[0044](2) Photo hot test

[0045]Th...

Example Embodiment

[0050]Example 2

[0051](1) Preparation of MC-2 composite film

[0052]The TG-SMPU electrospun film is cut off 40 mm × 40 mm size, heating is heated, and the pre-stretch ratio is 20%. A 20.8 ml of a concentration of 5 mg / ml of MXENE aqueous solution, and a water solution of 0.8 ml of concentration of 10 mg / ml of CNCs was mixed in the centrifuge tube, and the mixed aqueous solution of MXENE / CNCs was obtained, and evenly dripped on the electrospun film. The infrared lamp is dried, that is, the MC-2 composite film is obtained, and the film thickness is about 100 μm.

[0053](2) Photo hot test

[0054]The MC-2 composite membrane was cut into a 10 mm × 10 mm size, and the infrared laser intensity was adjusted, and the spot was irradiated with the surface of the sample while recording the surface temperature of the sample surface with a thermal imaging device. The temperature change is observed, and when the temperature reaches the saturation temperature and stabilizes, the laser power is turne...

Example Embodiment

[0055]Example 3

[0056](1) Preparation of MC-3 composite film

[0057]The TG-SMPU electrospun film is cut off 40 mm × 40 mm size, heating is heated, and the pre-stretch ratio is 20%. A 20.8 ml of a concentration of 5 mg / ml of MXENE aqueous solution, and a water solution of 1.2 ml concentration of 10 mg / ml of CNCs was mixed in the centrifuge tube, and the MXENE / CNCs were mixed, and evenly dripped on the electrospun film. The infrared lamp is dried, that is, the MC-3 composite film can be obtained with a film thickness of about 100 μm.

[0058](2) Photo hot test

[0059]The MC-3 composite film was cut into a 10 mm × 10 mm size, regulating the infrared laser intensity, and illuminate the spot surface while using a thermal imaging device to recording the surface temperature. The temperature change is observed, and when the temperature reaches the saturation temperature and stabilizes, the laser power is turned off. When the laser intensity is 120mW / cm2At the time, the sample reached a satu...

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Abstract

The invention discloses a rapid photo-thermal response shape memory driver as well as a preparation method and application thereof. A substrate of the driver is a flexible substrate fiber membrane with a micro-nano fiber structure and a shape memory function, and cellulose nanocrystalline and a conductive two-dimensional MXene material are deposited on the flexible substrate fiber membrane. The photo-thermal response speed of the shape memory driver is high, and the temperature of the surface of the shape memory driver can rapidly reach 80 DEG C or above within 20 s under the stimulation of near-infrared rays of 80-140 mW/cm <2>.

Description

technical field [0001] The invention belongs to the field of polymer composite materials, and in particular relates to a fast photothermal response shape memory driver and its preparation method and application. Background technique [0002] With the rapid development of artificial intelligence technology, it is of great significance to develop new intelligent materials that can accurately perceive, analyze, identify and process external stimuli and have certain execution capabilities. Shape memory polymers are a new class of functional polymer materials that can be deformed and fixed into a temporary shape under certain conditions, and can recover their shape after external stimuli. According to the type of stimulation to realize the memory function, it can be divided into different types such as thermal response type, photoinduced response type, electroinduced response type, and magnetic response type. The photothermal responsive shape memory material is to add phototherm...

Claims

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Application Information

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IPC IPC(8): D06M15/05D06M11/74D06M101/38
CPCD06M15/05D06M11/74D06M2101/38
Inventor 罗洪盛吴少英姚仰荣申伟彭博煜刘厚麟黄雪儿
Owner GUANGDONG UNIV OF TECH
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