Light-responsive and anti-freezing elastic gel fiber and preparation method thereof

An elastic gel and fiber technology, which is applied in fiber treatment, fiber chemical characteristics, spinning solution preparation, etc., can solve the problem that the fiber cannot have both photoresponsiveness, frost resistance, elasticity, high energy consumption of gel fiber, and preparation The complex process and other problems can be achieved to improve the mechanical properties, the preparation method is simple, and the modulus can be adjusted.

Active Publication Date: 2019-12-20
DONGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is to provide a photoresponsive and frost-resistant elastic gel fiber and its preparation method, which overcomes the high energy consumption and complicated preparation process of the prior art to prepare the gel fiber, and the fiber cannot have photoresponsiveness, Technical defects in properties such as frost resistance and elasticity

Method used

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  • Light-responsive and anti-freezing elastic gel fiber and preparation method thereof
  • Light-responsive and anti-freezing elastic gel fiber and preparation method thereof
  • Light-responsive and anti-freezing elastic gel fiber and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] Configure a mixed solvent of 2g glycerin (purchased from Sigma, the article number is V900122) and water, wherein the glycerol content is 20wt%, and add 0.5g of ferrous chloride (purchased from McLean, the article number is 1811897) and 0.25 g of citric acid (purchased from Sigma, product number is 791725), after completely dissolving, add 1g of acrylamide-sodium acrylate copolymer (molar mass is about 450,000g / mol, wherein acrylamide content is 75wt%) powder (purchased from Sigma company, article number is 511471), stir evenly, take the above mixed solution with a syringe, let it stand, and carry out microfluid spinning after the air bubbles are eliminated (environmental temperature: 25 ℃; ambient humidity: 30%; syringe pump extrusion speed: 10 μ L / min; receiver rotation speed: 5rpm) to obtain fibers, which can be further oxidized in the air to obtain photoresponsive and antifreeze elastic gel fibers. Regularly arranged fiber arrays and fiber nets can also be obtained...

Embodiment 2

[0042] Configure the mixed solvent of 3g glycerin and water, wherein glycerin content is 20wt%, in solvent, add the ferrous chloride of 0.45g and the citric acid of 0.25g, add the acrylamide-sodium acrylate copolymer (moles of 1.3g after dissolving completely The mass is about 450,000g / mol, wherein the content of acrylamide is 80wt%) and the powder is stirred evenly, and the above mixed solution is taken with a syringe, and left to stand, and microfluidic spinning is performed after the air bubbles are eliminated (ambient temperature: 25°C; ambient humidity: 30 %; syringe pump extrusion speed: 10 μ L / min; receiver rotation speed: 5 rpm) to obtain fibers, and the fibers can be further oxidized in the air to obtain photoresponsive and antifreeze elastic gel fibers. Regularly arranged fiber arrays and fiber nets can also be obtained by using the horizontal and uniform movement of the quadrilateral frame receiver.

Embodiment 3

[0044] Configure the mixed solvent of 2g glycerin and water, wherein glycerin content is 30wt%, in solvent, add the ferrous chloride of 0.5g and the citric acid of 0.35g, add the acrylamide-sodium acrylate copolymer (moles) of 0.8g after dissolving completely The mass is about 450,000g / mol, wherein the acrylamide content is 85wt%) powder is stirred evenly, and the above-mentioned mixed solution is taken with a syringe, and left to stand, and microfluidic spinning is performed after the air bubbles are eliminated (ambient temperature: 22°C; ambient humidity: 30 %; syringe pump extrusion speed: 10 μ L / min; receiver rotation speed: 5 rpm) to obtain fibers, and the fibers can be further oxidized in the air to obtain photoresponsive and antifreeze elastic gel fibers. Regularly arranged fiber arrays and fiber nets can also be obtained by using the horizontal and uniform movement of the quadrilateral frame receiver.

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Abstract

The invention relates to a light-responsive and anti-freezing elastic gel fiber and a preparation method thereof. The light-responsive and anti-freezing elastic gel fiber is prepared from 0.01-1 partof ferrous chloride, 0.005-2.5 parts of citric acid, 0.1-3 parts of an acrylamide-sodium acrylate random copolymer and 1-10 parts of a solvent. The prepared elastic gel fiber has the advantages of flexible stretchability, light response, adjustable modulus, freeze resistance, a simple preparation method and the like, and therefore the prepared elastic gel fiber has the potential for large-scale preparation and broad application prospects.

Description

technical field [0001] The invention belongs to the field of intelligent gel fiber and its preparation, in particular to a photoresponsive and antifreeze elastic gel fiber and its preparation method. Background technique [0002] Due to their large specific surface area, easy functionalization, and faster response rate, stimuli-responsive smart gel fibers have shown broad application prospects in artificial tissues, actuators, human health, and environmental change monitoring. . At present, there are three main methods for preparing smart gel fibers: electrospinning, 3D printing extrusion spinning and microfluidic spinning. As reported in "Advanced Materials" (Advanced Materials, 2015, 27, 4865), a double-layer fiber membrane composed of two photocrosslinked polymers, poly(N-isopropylacrylamide) and polyurethane, was prepared by electrospinning. Can be used for ultra-fast temperature induced actuation. "Advanced Materials" (Advanced Materials, 2017, 29, 1604827) reported ...

Claims

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Application Information

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IPC IPC(8): D01F6/44D01F1/10D01F11/06D01D1/02D01D5/00
CPCD01D1/02D01D5/00D01F1/10D01F6/44D01F11/06
Inventor 鞠敏孙胜童武培怡
Owner DONGHUA UNIV
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