Weather-resistant oil-water mixed gel platform and preparation method and application thereof

A technology of oil-water mixing and weather resistance, applied in the manufacture of hybrid/electric double-layer capacitors, hybrid capacitor electrolytes, etc., can solve problems such as dehydration, unsuitable storage and long-term use, achieve mild conditions, improve mechanical properties, and facilitate preparation and operation Effect

Active Publication Date: 2021-06-08
TONGJI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, conventional water or hydrogel electrolytes inevitably freeze at sub-zero temperatures in winter or in polar regions, and dehydrate in summer or in equatorial regions, making them unsuitable for storage and long-term use.
The above-mentioned problems pose new challenges for the synthesis of materials.

Method used

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  • Weather-resistant oil-water mixed gel platform and preparation method and application thereof
  • Weather-resistant oil-water mixed gel platform and preparation method and application thereof
  • Weather-resistant oil-water mixed gel platform and preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0053] Add 200 μL of acrylic acid (AA) and 5 mg of propenylated chondroitin sulfate (CSMA) into 500 μL of ethylene glycol / water mixed solvent (50% v / v), and stir until the solution is clear. 108 μL of concentrated sulfuric acid was diluted to 500 μL with an ethylene glycol / water mixed solvent (50% v / v), and added to the solution prepared above. Finally, 5 μL of 2,2-diethoxyacetophenone was added and irradiated under ultraviolet light for 30 minutes to obtain an oil-water mixed gel platform. The oil-water hybrid gel can be uniaxially stretched to 1500%, and biaxially stretched to 1200% strain; it can withstand 95% of its own compressive deformation; the peel strength with carbon cloth is 546J m -2 ;It can withstand the low temperature of -40°C and the high temperature of 80°C, the ion conductivity at 80°C is 26.6mS / cm, and the ion conductivity at -40°C is 4.5mS / cm; used in supercapacitors to realize energy storage.

[0054] like figure 1 As shown, the oil-water hybrid gel pla...

Embodiment 2

[0074] Add 200 μL of acrylic acid (AA) and 3 mg of propenylated chondroitin sulfate (CSMA) into 500 μL of ethylene glycol / water mixed solvent (50% v / v), and stir until the solution is clear. 108 μL of concentrated sulfuric acid was diluted to 500 μL with an ethylene glycol / water mixed solvent (50% v / v), and added to the solution prepared above. Finally, 5 μL of 2,2-diethoxyacetophenone was added and irradiated under ultraviolet light for 30 minutes to obtain an oil-water mixed gel platform.

Embodiment 3

[0076] Add 200 μL of acrylic acid (AA) and 7 mg of propenylated chondroitin sulfate (CSMA) into 500 μL of ethylene glycol / water mixed solvent (50% v / v), and stir until the solution is clear. 108 μL of concentrated sulfuric acid was diluted to 500 μL with an ethylene glycol / water mixed solvent (50% v / v), and added to the solution prepared above. Finally, 5 μL of 2,2-diethoxyacetophenone was added and irradiated under ultraviolet light for 30 minutes to obtain an oil-water mixed gel platform.

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Abstract

The invention relates to a weather-resistant oil-water mixed gel platform and a preparation and application thereof, a preparation method comprises the following steps: (1) modifying chondroitin sulfate to prepare modified chondroitin sulfate with double bonds as a cross-linking agent; (2) mixing ethylene glycol and water to prepare an oil-water mixed solution; (3) diluting concentrated sulfuric acid with an oil-water mixed solution to obtain a mixed solvent; (4) mixing the prepared cross-linking agent with a solvent, and adding a monomer and a photo-initiation system to prepare a uniform precursor solution; (5) gelling the obtained gel precursor solution to prepare oil-water mixed gel; and (6) loading mercaptopyridine on the prepared oil-water mixed gel to prepare the oxidation-reduction active oil-water mixed gel. Compared with the prior art, the preparation process is convenient and efficient, the material is green and environment-friendly, and the prepared gel platform has all-weather tolerance and ion transfer capability and can be used for preparing electronic energy storage devices.

Description

technical field [0001] The invention relates to the technical field of gel materials, in particular to a weather-resistant oil-water mixed gel platform and its preparation method and application. Background technique [0002] With the development of bioelectronics, flexible supercapacitors have received extensive attention and research. At this stage, there are mainly two methods to achieve the stretchability of the device: 1. Through geometric design, the capacitor is made into different structural shapes, such as folds, island bridges, and spirals; 2. The non-stretchable The electrode material is loaded on stretchable polymer materials such as polydimethylsilane, polyethylene oxide, polyurethane, polyvinylpyrrolidone and polymer gel, etc., so as to realize the flexibility of the whole device. Although the tensile properties of supercapacitors prepared by the above methods have been significantly improved, the current supercapacitors are still limited to uniaxial stretchin...

Claims

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Application Information

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IPC IPC(8): C08F251/00C08F220/06C08F220/56C08F220/58C08F222/38C08F222/20C08J3/02H01G11/56H01G11/84
CPCC08F220/06C08F220/56C08F220/58C08F251/00C08J3/02H01G11/56H01G11/84C08F222/385C08F222/1063
Inventor 尚英辉丁凤霞胡敏王启刚
Owner TONGJI UNIV
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