Multifunctional chelating ion-exchange fibers, and preparation method and application thereof

A technology for chelating ion and exchanging fibers, which is applied in the field of ion exchange fibers and chelating ion exchange fibers, and can solve the problem that functional resins cannot withstand spinning, chelating ion exchange fibers are rare, and desorption regeneration is cumbersome. and other problems, to achieve the effect of fast adsorption and desorption, simple production technology and high mechanical stability

Inactive Publication Date: 2012-05-02
HUAIHAI INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The functional substances that can be used in hybrid fiber forming technology are rare, and the functional resin is difficult to withstand the conditions of spinning, so it is rare to prepare chelated ion exchange fiber by hybrid

Method used

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  • Multifunctional chelating ion-exchange fibers, and preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] The preparation of embodiment 1 multifunctional chelating ion exchange cotton thread (1)

[0036] Step 1, preparation of tertiary amine functional cotton thread

[0037] 100 grams of commercially available 18S uncolored slub cotton single yarn is immersed in the amine prepared by emulsion copolymerization of butyl methacrylate / dimethylaminoethyl methacrylate / ethylene glycol dimethacrylate in a ratio of 50:40:10. Base resin emulsion, take out the cotton thread that has evenly coated emulsion, dry, increase in weight 113 grams, make tertiary amino functional cotton thread.

[0038] Step 2, preparation of quaternary ammonium functional cotton thread

[0039] Immerse 100 grams of the tertiary amino functional cotton thread prepared in step 1 in 300 milliliters of toluene containing 56 grams of 5-chloromethyl salicylaldehyde, react at room temperature for 24 hours, pull out the cotton thread, wash it 3 times with toluene, dry, and gain 47 gram to produce quaternary ammoniu...

Embodiment 2

[0042] Embodiment 2 The preparation of multifunctional chelating ion exchange polyester-cotton blended yarn (2)

[0043] According to the method and operation steps of Example 1, the commercially available 18S natural color woolen cotton single yarn in step one of Example 1 was replaced with commercially available 18S natural color 55 / 45 cotton polyester core-spun single yarn, and the amino acid in step three of Example 1 Thiourea is replaced by anthranilic acid to obtain an orange-red multifunctional chelated ion-exchange cotton-polyester blended yarn (2).

Embodiment 3

[0044] Embodiment 3 The preparation of multifunctional chelating ion exchange polyester-cotton blended yarn (3)

[0045] According to the method and operation steps of Example 1, the commercially available 18S natural color woolen cotton single yarn in step one of Example 1 was replaced with commercially available 18S natural color 55 / 45 cotton polyester core-spun single yarn, and the amino acid in step three of Example 1 Thiourea is replaced by 3-coumarin carboxylhydrazide, and the bright light yellow multifunctional chelating ion exchange cotton-polyester blended yarn (3) is obtained.

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PUM

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Abstract

The invention provides multifunctional chelating ion-exchange fibers. According to the invention, natural cotton fibers, fibrilia, natural wood fibers, natural bamboo fibers or natural grass fibers, or blend fibers of one selected from the group consisting of atural cotton fibers, fibrilia, natural wood fibers, natural bamboo fibers or natural grass fibers and one selected from the group consisting of polypropylene fibers, acrylic fibers, vinylon, terylene and spandex are used as a fiber based material; the fiber based material is dipped in amino-containing resin emulsion so as to prepare functional fibers whose surface is coated with tertiary amino-containing resin; the tertiary amine functional fibers sequentially react with 5-chloromethyl salicylaldehyde and thiosemicarbazide, and therefore, quaternary ammonium groups and salicylaldehyde thiosemicarbazone are introduced onto the functional fibers which become the multifunctional chelating ion-exchange fibers.

Description

technical field [0001] The invention relates to a chelating ion exchange fiber, in particular to an ion exchange fiber formed by coating the fiber with a chelating resin, which has the functions of detecting, analyzing, separating, enriching and exchanging various water ions, and belongs to the field of functional materials. technical background [0002] Ion exchange fibers are cationic or anionic groups carried on the fiber skeleton interact with anions or cations in the medium through Coulomb attraction to produce adsorption and separation functions respectively. The chelating fiber is a coordination bond formed by the chelating functional group of the N, O, S, P coordination atoms of the base fiber and the metal ion to form a complex, thereby producing a detection, analysis, and separation of the metal ion. , Enrichment function. Chelate fibers have more abundant functional groups and more specific selectivity than ion exchange fibers. Some chelating fibers also have ab...

Claims

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Application Information

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IPC IPC(8): B01J45/00
Inventor 李善忠王佳佳钟捷张田林
Owner HUAIHAI INST OF TECH
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