Preparation method and application of high-performance IPMC with Nafion-PVA-ES as electrolyte membrane

A technology of nafion-pva-es and electrolyte membrane, which is applied in the direction of heart valves, rayon manufacturing, and human tubular structure devices, can solve the problems of small mechanical properties, short displacement periods, and low porosity, and achieve high water molecular weight. The effect of migration amount, maintenance of stable drive, and outstanding mechanical characteristics

Active Publication Date: 2018-11-20
ZHENGZHOU UNIVERSITY OF LIGHT INDUSTRY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] IPMC made of Nafion has the characteristics of low voltage and fast response, and is widely used in various fields of science and technology. However, it also has disadvantages such as low porosity, poor water absorption, short displacement distance, short displacement period, and small mechanical properties.

Method used

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  • Preparation method and application of high-performance IPMC with Nafion-PVA-ES as electrolyte membrane
  • Preparation method and application of high-performance IPMC with Nafion-PVA-ES as electrolyte membrane
  • Preparation method and application of high-performance IPMC with Nafion-PVA-ES as electrolyte membrane

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] Embodiment 1 (casting method prepares basement membrane)

[0044] The basement membrane of IPMC is prepared by pouring method: weigh 2.3g of Nafion solution, 0.42g of PVA and 20ml of DMF solvent in a beaker, mix and stir evenly, pump the mixed membrane solution under low pressure to bubble, and then put the bubbled solution on the Stand in the air for one minute to obtain the membrane solution, and finally take out 3ml of the prepared membrane solution and drop it on the glass sheet, then put it on the glue homogenizer, set the speed at 20-50r / min, and the time is 110s, spread the membrane solution, and finally Place in a 70°C oven and dry. Prepare Nafion-PVA base film.

[0045] Using the same method to prepare Nafion basement membrane.

Embodiment 2

[0046] Example 2 (preparation of electrolyte membrane by non-directional electrospinning)

[0047] Prepare Nafion-PVA-ES electrolyte membrane by non-directional electrospinning: weigh 2.3g Nafion solution, 0.42gPVA and 20ml DMF solvent in a beaker, mix and stir evenly, pump the mixed membrane solution with low pressure to bubble, and then pump the bubble The solution was placed in the air for one minute to obtain a membrane solution, and the membrane solution was placed on an electrospinning device to adjust the spinning conditions and spun onto an aluminum foil receiving plate, and the Nafion-PVA-ES electrolyte membrane was obtained after spinning for 48 hours.

[0048] Using the same method to prepare Nafion-ES electrolyte membrane.

Embodiment 3

[0049] Embodiment 3 (preparation of electrolyte membrane by directional electrospinning)

[0050] Weigh 2.3g Nafion solution and 0.92g PVA powder into a beaker, then pour 20ml of DMF solvent into it, heat to boil, stir and mix evenly, wait until the PVA is completely fused, pump the membrane solution with low pressure bubbles, and then put the bubbled solution in the air Put the static solution on the electrospinning device to adjust the spinning conditions and spin it to the roller receiving device, and optimize the electrospinning experiment by the orthogonal experimental design method, discuss The method and conditions of Nafion-PVA-PAES film preparation, and the influence of the content of the solution, the distance from the needle to the roller, the flow rate, and the speed of the roller receiver on the average diameter of the fiber were discussed by the orthogonal experiment design method. The flow rate is the most important factor affecting the fiber diameter. The large...

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Abstract

The invention discloses a preparation method and application of high-performance an IPMC (Ionic Polymer Metal Composite) taking Nafion-PVA-ES as an electrolyte membrane. The IPMC consists of an electrolyte membrane, directional spinning graphite membrane electrodes fixed on both sides of the electrolyte membrane, and an external electrical signal input system. The Nafion-PVA-ES electrolyte membrane is prepared by directional electrostatic spinning, electrodes are prepared by directional electrostatic spinning, and then the electrodes are embedded with the Nafion-PVA-ES electrolyte membrane toprepare the IPMC. The IPMC provided by the invention has anisotropic electro-mechanical conversion performance, the IPMC with Nafion-PVA-LAES obtained by cutting along a radial direction as a basementmembrane has large force output, and the IPMC with Nafion-PVA-PAES obtained by cutting along a weft direction as the basement membrane has large displacement output capability; and the IPMC has a wider application field.

Description

technical field [0001] The invention belongs to the technical field of composite materials, and in particular relates to a preparation method and application of a high-performance IPMC using Nafion-PVA-ES as an electrolyte membrane. Background technique [0002] Perfluorosulfonic acid products are mainly composed of fluorocarbon main chain and sulfonate side chain, and its chemical structure is as follows: [0003] [0004] The structure of its fluorocarbon main chain is similar to the chemical structure of polytetrafluoroethylene, which has hydrophobic properties, and because of the hydrophilicity of the sulfonate functional groups in its side chains, perfluorosulfonic acid has hydrophilic properties. At present, DuPont of the United States mainly produces perfluorosulfonic acid products, including Nafion membrane and Nafion solution series products. [0005] On both sides of the Nafion membrane, precious metals such as platinum, gold, etc. are plated by electroless pla...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D01F6/50D01F1/10A61F2/24A61F2/06
CPCA61F2/06A61F2/24A61F2240/001D01F1/10D01F6/50
Inventor 郭东杰王力臻韩宇兵王龙王放黄建建
Owner ZHENGZHOU UNIVERSITY OF LIGHT INDUSTRY
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