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Method for preparing polyphenylene sulfide-based strong basic ion exchange fibers

A polyphenylene sulfide fiber and polyphenylene sulfide-based technology is applied in the field of preparation of polyphenylene sulfide-based strong base ion-exchange fibers, and achieves the effects of simplified preparation method, easy popularization and application, and reduced production cost

Inactive Publication Date: 2011-05-11
ZHENGZHOU UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

This method has not been reported in the relevant literature

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  • Method for preparing polyphenylene sulfide-based strong basic ion exchange fibers

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Embodiment 1

[0034] The preparation method of polyphenylene sulfide base strong base ion exchange fiber of the present invention, its detailed steps are as follows:

[0035] a. Chloromethylation and cross-linking reaction: Weigh 4.1047g of basic raw material polyphenylene sulfide fiber, 50ml of solvent dichloroethane and place it in a 100ml three-necked flask for swelling for 12 hours. After swelling, recover 25ml of dichloroethane, and then add Weigh 20ml of the basic raw material chloromethyl ether and 3ml of the catalyst anhydrous tin tetrachloride, shake and shake well, heat the reaction solution to 55°C in an oil bath after shaking well, and react at this temperature for 20h; after the reaction, chloromethylated Cross-link polyphenylene sulfide fibers, cool the obtained fibers to room temperature, wash them with distilled water and absolute ethanol in turn, then extract them with absolute ethanol in a Soxhlet extractor for 8 hours, wash with distilled water after extraction, and remove...

Embodiment 2

[0038] The preparation method of polyphenylene sulfide base strong base ion exchange fiber of the present invention, its detailed steps are as follows:

[0039] a. Chloromethylation and crosslinking reaction: Weigh 5.4819g of basic raw material polyphenylene sulfide fiber, 50ml of solvent dichloroethane and place it in a 100ml three-necked flask for swelling for 13 hours. After swelling, recover 20ml of dichloroethane, and then add Weigh 30ml of the basic raw material chloromethyl ether and 4ml of the catalyst anhydrous tin tetrachloride, shake and shake well, heat the reaction solution with an oil bath to 50°C for 25h; Phenylsulfide fiber, the obtained fiber is cooled to room temperature, washed with distilled water and absolute ethanol in turn, then extracted with absolute ethanol in a Soxhlet extractor for 10 hours, washed with distilled water after extraction, and chloromethyl The ethanol in the cross-linked polyphenylene sulfide fiber is desiccated, and the washed fiber i...

Embodiment 3

[0042] The preparation method of polyphenylene sulfide base strong base ion exchange fiber of the present invention, its detailed steps are as follows:

[0043] a. Chloromethylation and crosslinking reaction: Weigh 13.6311g of basic raw material polyphenylene sulfide fiber, 80ml of solvent dichloroethane, and 80ml of chloromethyl ether in a 250ml three-necked flask for swelling for 14 hours, and add catalyst anhydrous after swelling Shake 8ml of tin tetrachloride and shake well, heat the reaction solution with an oil bath to react at 55°C for 30h; after the reaction is completed, chloromethylated cross-linked polyphenylene sulfide fibers are obtained, and the obtained fibers are cooled to room temperature, followed by Wash with distilled water and absolute ethanol, then extract it with absolute ethanol in a Soxhlet extractor for 12 hours, wash with distilled water after extraction, remove the ethanol in the chloromethylated cross-linked polyphenylene sulfide fiber, and The was...

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Abstract

The invention discloses a method for preparing polyphenylene sulfide-based strong basic ion exchange fibers, which comprises the following steps of: first swelling raw polyphenylene sulfide fibers in a solvent, adding a raw material polyphenylene sulfide and a catalyst after the raw polyphenylene sulfide fibers are swelled, heating the mixture for chloromethylation and crosslinking reaction, and obtaining chloromethylated crosslinked polyphenylene sulfide fibers after the reaction is finished; then swelling the obtained chloromethylated crosslinked polyphenylene sulfide fibers in the solvent, adding trimethylamine solution after the chloromethylated crosslinked polyphenylene sulfide fibers are swelled, heating the reaction solution for quaternization reaction, and obtaining the polyphenylene sulfide-based strong basic ion exchange fiber products after the quaternization reaction is finished; and finally washing the products, and performing extraction, brine-washing and drying. The method for preparing the polyphenylene sulfide-based strong basic ion exchange fibers is simple and easy to industrially popularize and apply, and ensures relatively lower production cost. The products prepared by the method can be applied in the fields of treatment of industrial wastewater, air purification, preparation of ultrapure water, separation and extraction of medicinal chemicals, and the like.

Description

technical field [0001] The invention relates to a preparation method of a strong alkali ion exchange fiber, in particular to a preparation method of a polyphenylene sulfide-based strong alkali ion exchange fiber. Background technique [0002] Strong base ion exchange fibers are widely used in wastewater treatment, air purification, preparation of high-purity water, and drug carriers. So far, the methods used to prepare this type of fiber mainly contain: 1. 60 co γ Irradiation initiated the grafting of copolymers of styrene and divinylbenzene onto polypropylene fibers, followed by chloromethylation and quaternization; Chloromethylation and quaternization were carried out to prepare strong base ion exchange fibers. The above two preparation methods of strong alkali ion exchange fibers have been industrialized and registered trademarks "FIBAN" and "IONEX" respectively. However, the above two preparation methods of strong base ion exchange fibers have high production costs a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06M13/165D06M13/328B01J41/12D06M101/30
CPCD01F6/765B01J41/05B01J41/13B01J47/12C02F1/42C02F2001/422D01F1/10
Inventor 原思国黄佳佳白玲玲张鑫李仙蕊赵林秀
Owner ZHENGZHOU UNIV
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