Self-reinforced hybrid hydrogel used for artificial muscles and preparation method thereof

An artificial muscle and hydrogel technology, applied in the field of functional materials and biomaterials, can solve the problems of difficult self-enhancement of hydrogels, complicated preparation process of high-strength hydrogels, and high cost

Inactive Publication Date: 2014-11-19
TIANJIN POLYTECHNIC UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] Aiming at the deficiencies of the prior art, the technical problem to be solved by the present invention is that the preparation process of high-strength hydrogel is complicated, the cost is high, and the hydrogel is difficult to self-reinforce, etc.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] Example 1. A self-reinforcing isopropylacrylamide / barium alginate hybrid hydrogel for artificial muscles and its preparation method

[0019] a) Add 1% by volume and 10% by mass barium chloride aqueous solution to 10g of acetone, add Span-80, and then quickly stir for 0.5h to become a uniform white emulsion;

[0020] b) Weigh 0.03% of divinylbenzene with isopropyl acrylamide mass percentage, and dissolve it in 68ml of deionized water. After ultrasonic dispersion is uniform, add 15 g isopropyl acrylamide and 0.5 sodium alginate, and then add isopropyl propylene Ammonium persulfate with 0.1% amide mass percentage, fully dissolved, add 10% of the total solution volume percentage of the white emulsion configured in step a), and finally add 0.1% isopropylacrylamide mass percentage of sodium bisulfite and isopropyl After stirring the tetramethylethylenediamine with 0.01% acrylamide mass percentage, the solution is poured into the mold, vacuum degassing, in N 2 Under the protection ...

Embodiment 2

[0022] Example 2. A self-reinforcing diacetone acrylamide / copper alginate hybrid hydrogel for artificial muscles and its preparation method

[0023] a) Add 15% by volume of copper sulfate aqueous solution with a concentration of 5% by mass to 10g of toluene, add lecithin, and then quickly stir for 2h to become a uniform white emulsion;

[0024] b) Weigh 0.15% diisocyanate of diacetone acrylamide by weight, dissolve it in 68ml of deionized water, after ultrasonic dispersion, add 5g diacetone acrylamide and 2g sodium alginate, then add 5% by weight diacetone acrylamide After fully dissolving the ammonium persulfate, add 10% of the total solution volume percentage of the white emulsion configured in step a), and finally add 5% sodium bisulfite with diacetone acrylamide mass percentage and 2% diacetone acrylamide mass percentage Tetramethylethylenediamine, after stirring evenly, pour the solution into the mold, vacuum degassing, 2 Under protection, ultraviolet light initiates polymeriz...

Embodiment 3

[0026] Example 3. A self-reinforcing methacrylamide / zinc alginate hybrid hydrogel for artificial muscles and its preparation method

[0027] a) Add 5% by volume of 50% zinc chloride aqueous solution to 10g of liquid paraffin, add twen-60, and then quickly stir for 0.5h to become a uniform white emulsion;

[0028] b) Weigh N,N'-methylenebisacrylamide with 0.15% by mass of methacrylamide and dissolve it in 68ml of deionized water. After ultrasonic dispersion is uniform, add 8g of methacrylamide and 1g of sodium alginate, then Add ammonium persulfate with 2% methacrylamide mass percentage, and after fully dissolving, add 5% of the total solution volume percentage of the white emulsion configured in step a), and finally add sodium bisulfite with 1% methacrylamide mass percentage and Tetramethylethylenediamine with a mass percentage of 1% methacrylamide, after stirring evenly, pour the solution into the mold, vacuum degassing, 2 Under the protection, high-energy electron beam initiates ...

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Abstract

The invention relates to a self-reinforced hybrid hydrogel used for artificial muscles and a preparation method thereof. According to the invention, sodium alginate is used as a high-molecular skeleton, acrylamide and derivative thereof are used as polymerizable monomers, divinyl benzene, N,N'-methylene bis acrylamide or ethylene glycol dimethacrylate is used as a chemical cross-linking agent, an aqueous metal salt solution is used as an ion cross-linking agent, and then the hydrogel with high elasticity and high toughness is prepared. During a process of preparing the hydrogel, an organic matter emulsion containing metal ion aqueous solution is added. When the prepared hydrogel is stretched by external forces to a certain extent, the gel deforms to extrude the organic matter emulsion, and metal ions are released and then crosslinked with the sodium alginate in the hybrid gel, thereby substantially improving gel intensity and preventing gel fracture. The preparation method has advantages of good controllability, simple technology and low cost, the obtained hydrogel material can be self-reinforced, and is expected to be applied in fields of artificial cartilage, artificial muscle, flexible robot manufacture, etc.

Description

Technical field [0001] The invention relates to a self-reinforcing hybrid hydrogel for artificial muscles and a preparation method thereof, and belongs to the field of functional materials and biological materials. Background technique [0002] Artificial muscles are materials that do not use mechanical devices, but are driven by electric fields or chemically. The materials currently used to prepare artificial muscles include polymer gels, conductive polymer materials, liquid crystal polymer materials, supramolecular systems, and metal polymer composite materials. Among them, polymer gels have attracted widespread attention due to their good biocompatibility. Polymer gel is a multi-component system composed of a three-dimensional polymer network and a solvent. It can respond to environmental stimuli such as temperature, pH, electric field, solvent properties, light intensity and light wavelength, pressure, ionic strength, ion density and special chemical stimuli, etc. A polymer...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08J3/24C08L51/02C08F251/00A61L27/20A61L27/16A61L27/02A61L27/52
Inventor 赵孔银林贝贝阚伯红崔文葵刘春娇祁志强
Owner TIANJIN POLYTECHNIC UNIV
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