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Method for converting fluorine-containing function particle resin molecule

A particle and resin technology, applied in the field of functional fluorine-containing polymer materials, can solve the problems of mixing impurities, long hydrolysis time, complicated process, etc., and achieve the effect of excellent proton exchange function and shortening hydrolysis transformation time.

Active Publication Date: 2011-08-17
JUHUA GRP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0009] The process of molecular structure transformation of the above-mentioned polymer and sulfonic acid resin needs to be prepared into a solution. A large amount of solvent is used in the transformation process, the process is complicated, and the hydrolysis time is long, usually not less than 20 hours.
Impurities may be mixed in the process, leaving residues or some metal ions on the proton exchange resin with high cleanliness requirements

Method used

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  • Method for converting fluorine-containing function particle resin molecule
  • Method for converting fluorine-containing function particle resin molecule

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037]Add 1 kg of sulfonic acid granular resin and 2 kg of KOH aqueous solution with a mass concentration of 25% in a glass-lined reactor. Control the reaction temperature to hydrolyze at 105° C. for 8 hours, and wash with deionized water for 2 to 3 times. Drain the deionized washing water and add HNO with a mass concentration of 30% 3 2 kg of aqueous solution was reacted for 2 hours, and the acidification reaction temperature was 85° C., and then the granular resin was washed with deionized water. After drying, the sulfonic acid granular resin with high cleanliness was obtained. The equivalent weight was 970g / mol and the residual amount of metal iron ion was 45PPb.

Embodiment 2

[0039] Add 1 kg of sulfonic acid granular resin and 2 kg of NaOH aqueous solution with a mass concentration of 30% in a glass-lined reactor. Control the reaction temperature to hydrolyze at 95° C. for 6 hours, and wash with deionized water for 2 to 3 times. Put clean deionized washing water, add mass concentration of 20% H 2 SO 4 3 kg of aqueous solution was reacted for 2 hours, and the acidification reaction temperature was 90° C., and then the granular resin was washed with deionized water. After drying, the sulfonic acid granular resin with high cleanliness was obtained. The equivalent weight was 1050g / mol, and the residual amount of metal iron ion was 30PPb.

Embodiment 3

[0041] Add 1 kg of sulfonic acid granular resin and 4 kg of NaOH aqueous solution with a mass concentration of 10% in a glass-lined reactor. Control the reaction temperature to hydrolyze for 10 hours at 120° C., and wash with deionized water for 2 to 3 times. Drain the deionized washing water, add 3 kg of HCL aqueous solution with a mass concentration of 15%, react for 1 hour, the acidification reaction temperature is 70 ° C, and then wash the granular resin with deionized water. After drying, the sulfonic acid granular resin with high cleanliness was obtained, and its equivalent weight was tested to be 1100g / mol, and the residual amount of metal iron ions was 37PPb.

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Abstract

The invention discloses a method for converting fluorine-containing function particle resin molecule. By converting the molecule structure composition of sulfoacid resin, the method converts the sulfoacid resin of a tail end base band-SO2F group into be in a -SO3H type. During the converting process, a small amount of organic solubilizer is added, thereby promoting the effective swelling of particle resin, shortening the converting time of hydrolysis and avoiding the mixing of certain metallic ions and other impurity residues, so that high-purity sulfoacid particle resin with an excellent proton exchange function is obtained.

Description

technical field [0001] The present invention relates to a fluorine-containing polymer material with proton exchange function, and in particular to a fluorine-containing functional granular resin transformed into a functional fluorine-containing high-molecular material with proton exchange performance by transforming the molecular structure composition of fluorine-containing functional granular resin. molecular material. Background technique [0002] As we all know, fluorine-containing resins have excellent physical and mechanical properties and chemical stability, and are widely used in various fields such as chemical engineering, mechanical electronics, aerospace military industry, new materials, and new energy. The introduction of different groups in the fluorine-containing resin can make the fluorine-containing resin have special properties and become a high-end fluorine-containing functional material, such as optical fiber materials, proton exchange membranes for fuel ce...

Claims

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Application Information

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IPC IPC(8): C08F214/18C08F216/14C08F8/12B01J41/14
Inventor 张士林王树华杨颖
Owner JUHUA GRP
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