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A kind of polyphenylene sulfide fiber fabric type alkaline water electrolysis diaphragm and preparation method thereof

A polyphenylene sulfide fiber, water electrolysis technology, applied in electrolysis components, electrolysis process, organic diaphragms, etc., can solve the problems of short service life and poor resistance of the diaphragm, and achieve good hydrophilicity, long service life, and comprehensive guarantee. performance effect

Active Publication Date: 2022-08-05
TIANJIN POLYTECHNIC UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a polyphenylene sulfide fiber fabric type alkaline water electrolysis diaphragm and its preparation method to solve the problems of poor tolerance to high temperature alkaline electrolysis environment and short service life of the diaphragm.

Method used

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  • A kind of polyphenylene sulfide fiber fabric type alkaline water electrolysis diaphragm and preparation method thereof
  • A kind of polyphenylene sulfide fiber fabric type alkaline water electrolysis diaphragm and preparation method thereof
  • A kind of polyphenylene sulfide fiber fabric type alkaline water electrolysis diaphragm and preparation method thereof

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Effect test

Embodiment 1

[0035] The polyphenylene sulfide resin was vacuum-dried at 100 °C for 12 hours, and mechanically premixed with zirconia inorganic nanoparticles with an average particle size of 40 nm and a monoclinic phase, in which the zirconia inorganic nanoparticles accounted for the polyphenylene sulfide resin. 3% of the mass, melt-blended and extruded through a twin-screw extruder, vacuum-dried at 100 °C for 12 hours, and melt-spun after drying. The melt-spinning parameters are: melting temperature is 300 °C, stretching The temperature was 120 °C, and the spinning speed was 1000 m / s to obtain zirconia-modified polyphenylene sulfide fibers with an average diameter of 9.8 μm (see the scanning electron microscope image). figure 2); the zirconia-modified polyphenylene sulfide fibers are combed into strips and spun into yarns (see SEM image for image 3 ); woven into plain fabric by a loom (see the actual picture Figure 4 ), after 60bar spunlace, a polyphenylene sulfide fiber fabric type al...

Embodiment 2

[0037] The polyphenylene sulfide resin was vacuum-dried at 100 °C for 12 hours, and mechanically premixed with zirconia inorganic nanoparticles with an average particle size of 45 nm and a tetragonal phase, in which the zirconia inorganic nanoparticles accounted for the mass of the polyphenylene sulfide resin. 3%, melt-blended and extruded through a twin-screw extruder, vacuum-dried at 100 °C for 12 hours, and then melt-spun after drying. The melt-spinning parameters are: melting temperature is 310 °C, stretching temperature 100 ° C, spinning speed of 800 m / s, to obtain zirconia-modified polyphenylene sulfide fibers with an average diameter of 9.1 μm; carding the zirconia-modified polyphenylene sulfide fibers into strips and spinning them into yarns; The cloth is woven into a plain weave fabric, and is spunlaced at 40 bar to obtain a polyphenylene sulfide fiber fabric type alkaline water electrolysis separator with a film thickness of 800 μm.

Embodiment 3

[0039] The polyphenylene sulfide resin was vacuum-dried at 100 °C for 12 hours, and mechanically premixed with zirconia inorganic nanoparticles with an average particle size of 50 nm and a cubic phase, wherein the zirconia inorganic nanoparticles accounted for the mass of the polyphenylene sulfide resin. 0.5%, melt blending and extruding granulation through a twin-screw extruder, vacuum drying at 100 ° C for 12 h, and melt spinning after drying. The melt spinning parameters are: melting temperature is 280 ° C, stretching temperature 90 ° C, spinning speed of 800 m / s, to obtain zirconia-modified polyphenylene sulfide fibers with an average diameter of 16 μm; carding the zirconia-modified polyphenylene sulfide fibers into strips, weaving into yarns; It is woven into a twill fabric and spunlaced at 80 bar to obtain a polyphenylene sulfide fiber fabric type alkaline water electrolysis separator with a film thickness of 760 μm.

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Abstract

The present invention disclosed a polybenzene sulfe ether fiber -woven model alkaline hydrolytic diaphragm and its preparation method, which belongs to the field of diaphragm preparation technology.The present invention modified the polybenzene sulfe ether resin through oxidation inorganic nanoparticles. After melting the spinning wire, the oxidation polybenzene sulfen ether fiber was obtained.In the process, the alkaline hydrolytic membrane of polybenzene sulfe ether fiber factories can be obtained.In the alkaline hydrolytic film made of polybine sulfen ether fiber made of the present invention, the polybenzene sulfein fiber of oxidation has good flexibility and mechanical properties. The inorganic particles introduced in the fiber provide excellent hydrophilicity, Water Tree process enables fibers to be distributed in the fabric, optimizing the pore structure.Therefore, the alkaline hydrolysis film of polybine sulfenyl fibrophytic woven membrane proposed by the present invention has good hydrophilicity, high pore rate, and good chemical resistance of heat -resistant alkali solution, and the preparation method is simple and easy.

Description

technical field [0001] The invention relates to the technical field of diaphragm preparation, in particular to a polyphenylene sulfide fiber fabric type alkaline water electrolysis diaphragm and a preparation method thereof. Background technique [0002] As an efficient, clean and ideal secondary energy, hydrogen energy has been widely valued by countries all over the world for a long time. The development of hydrogen energy has important strategic significance. The water electrolysis diaphragm is one of the key materials for the preparation of hydrogen energy devices by water electrolysis. Its main function is to separate the gas generated at the two poles of the electrolytic cell and ensure the efficient and smooth passage of ions in the electrolyte. The direct impact, on the other hand, affects the power consumption of the electrolysis operation, which directly determines the economy of the electrolysis process. For a long time, the main raw material of water electrolysi...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D01F6/94D01F1/10C25B13/08C25B1/04
CPCD01F6/94D01F1/10C25B13/08C25B1/04Y02E60/36
Inventor 程博闻单明景鞠敬鸽庄旭品夏磊张马亮康卫民
Owner TIANJIN POLYTECHNIC UNIV