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A photoresponsive and antifreeze elastic gel fiber and its preparation method

An elastic gel and fiber technology, applied in fiber processing, spinning solution preparation, fiber chemical characteristics, etc., can solve the problem of high energy consumption of gel fibers, complicated preparation process, and the inability of fibers to have both photoresponsiveness and frost resistance , elasticity and other issues, to achieve the effect of improving mechanical properties, simple preparation method, and adjustable modulus

Active Publication Date: 2021-11-09
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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  • A photoresponsive and antifreeze elastic gel fiber and its preparation method
  • A photoresponsive and antifreeze elastic gel fiber and its preparation method
  • A photoresponsive and antifreeze elastic gel fiber and its preparation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] Prepare a mixed solvent of 2g glycerol (purchased from Sigma Company, the product number is V900122) and water, wherein the glycerin content is 20wt%, add 0.5g of ferrous chloride (purchased from McLean, the product number is 1811897) and 0.25 g of ferrous chloride to the solvent g of citric acid (purchased from Sigma Company, the product number is 791725), add 1 g of acrylamide-sodium acrylate copolymer (molar mass is about 450,000g / mol, wherein the acrylamide content is 75wt%) powder (purchased from Sigma company, product number 511471), stir evenly, take the above mixed solution with a syringe, let it stand, and perform microfluidic spinning after the bubbles are eliminated (ambient temperature: 25 °C; ambient humidity: 30%; Syringe pump extrusion speed: 10 μL / min; receiver rotation speed: 5 rpm) to obtain fibers, and the fibers can be further oxidized in the air to obtain light-responsive and frost-resistant elastic gel fibers. Using the horizontal uniform movement...

Embodiment 2

[0042] Configure a mixed solvent of 3g glycerol and water, wherein the glycerin content is 20wt%, add 0.45g of ferrous chloride and 0.25g of citric acid to the solvent, add 1.3g of acrylamide-sodium acrylate copolymer (mol The mass is about 450,000 g / mol, in which the acrylamide content is 80 wt%) and the powder is stirred evenly, and the mixed solution is taken with a syringe and left to stand. %; the extrusion speed of the syringe pump: 10 μL / min; the speed of the receiver: 5 rpm) to obtain the fiber, and the fiber can be further oxidized in the air to obtain the light-responsive and antifreeze elastic gel fiber. Using the horizontal uniform movement of the quadrilateral frame receiver, regular fiber arrays and fiber webs can also be obtained.

Embodiment 3

[0044] Configure a mixed solvent of 2g glycerol and water, wherein the glycerin content is 30wt%, add 0.5g of ferrous chloride and 0.35g of citric acid to the solvent, add 0.8g of acrylamide-sodium acrylate copolymer (mol The mass is about 450,000 g / mol, in which the acrylamide content is 85 wt%) and the powder is stirred evenly, and the mixed solution is taken with a syringe and left to stand. %; the extrusion speed of the syringe pump: 10 μL / min; the speed of the receiver: 5 rpm) to obtain the fiber, and the fiber can be further oxidized in the air to obtain the light-responsive and antifreeze elastic gel fiber. Using the horizontal uniform movement of the quadrilateral frame receiver, regular fiber arrays and fiber webs can also be obtained.

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Abstract

The invention relates to a photoresponsive and antifreeze elastic gel fiber and a preparation method thereof. The raw material components include: 0.01 to 1 part of ferrous chloride, 0.005 to 2.5 parts of citric acid, 0.1 to 3 parts of acrylamide-sodium acrylate Regular copolymer, 1-10 parts solvent. The elastic gel fiber prepared by the invention has the characteristics of flexibility, stretchability, light response, adjustable modulus, antifreeze, simple preparation method, etc., so it has the potential of large-scale preparation and broad application prospects.

Description

technical field [0001] The invention belongs to the field of intelligent gel fiber and its preparation, and particularly relates to a light-responsive and antifreeze elastic gel fiber and a preparation method thereof. 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, etc. . 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 ultrafast temperature induced actuation. "Advanced Materials" (Advanced Materials, 2017, 2...

Claims

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Application Information

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Patent Type & Authority Patents(China)
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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