A weather-resistant oil-water mixed gel platform and its preparation method and application

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 unsuitable storage, long-term use, dehydration, etc., and achieve improved mechanical properties, mild conditions, and good compatibility sexual effect

Active Publication Date: 2021-11-09
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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  • A weather-resistant oil-water mixed gel platform and its preparation method and application
  • A weather-resistant oil-water mixed gel platform and its preparation method and application
  • A weather-resistant oil-water mixed gel platform and its preparation method and application

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] Such as figure 1 As shown, the oil-water hybrid gel ...

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 its preparation and application. The preparation method includes the following steps: (1) modifying chondroitin sulfate to prepare modified chondroitin sulfate with double bonds as a crosslinking agent (2) Mix ethylene glycol with water to prepare an oil-water mixture; (3) Dilute the concentrated sulfuric acid with an oil-water mixture to obtain a mixed solvent; (4) Mix the prepared cross-linking agent with a solvent, add monomers and light-initiated The system is prepared into a uniform precursor solution; (5) the obtained gel precursor solution is gelled to prepare an oil-water mixed gel; (6) the prepared oil-water mixed gel is loaded with mercaptopyridine to prepare a redox active oil-water mixed gel. Compared with the prior art, the preparation process of the present invention is convenient and efficient, and the material is green and environmentally friendly. The prepared gel platform has all-weather tolerance and ion transfer ability, and can be used to prepare 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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Patent Type & Authority Patents(China)
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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