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Super chelating ion exchange fiber

A technology of chelating ions and exchanging fibers, which is applied in the field of fiber surface coating with chelating ion resin and super chelating ion exchange fiber, which can solve the problem that functional resins are difficult to withstand spinning, chelating ion exchange fibers are rare, The desorption regeneration cycle is cumbersome and other problems, to achieve the effect of fast adsorption and desorption, simple production technology and high mechanical stability

Inactive Publication Date: 2012-06-20
上海紫临实业有限公司
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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 fiber forming technology
Single function, low hydrophilicity, complex preparation technology, high cost of raw materials, cumbersome desorption regeneration cycle, etc. are also the defects of existing chelated ion exchange fibers.

Method used

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  • Super chelating ion exchange fiber
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  • Super chelating ion exchange fiber

Examples

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Effect test

Embodiment 1

[0032] The preparation of embodiment 1 super chelated ion exchange cotton thread

[0033] Step 1, preparation of cyanamide functional cotton yarn

[0034] 100 grams of commercially available 18S uncolored woolen cotton single yarn was prepared by emulsion copolymerization of methyl methacrylate / bis(2-cyanoethyl)allylamine / diethylene glycol methacrylate in a ratio of 40:50:10. Padding three times in the cyanamide resin emulsion, the padding time is 30 minutes, take out the cotton yarn, dry, gain 86 grams in weight, and make the cyanamide functional cotton yarn.

[0035] Step 2, preparation of functional cotton yarn with cyanaldehyde salt

[0036] Immerse 100 grams of the cyanamide functional cotton yarn prepared in step 1 in 300 milliliters of toluene containing 56 grams of 5-chloromethyl salicylaldehyde, react at room temperature for 40 hours, extract the cotton yarn, wash it 3 times with toluene, dry, and gain 23.5 grams in weight , to prepare cyanaldehyde salt functional c...

Embodiment 2

[0039] The preparation of embodiment 2 super chelating ion exchange polyester-cotton blended yarn

[0040] According to the method and operation steps of Example 1, the commercially available 18S natural color woolen cotton single yarn in step 1 of Example 1 was replaced with the commercially available 18S natural color 55 / 45 cotton polyester core-spun single yarn to obtain super chelated ion exchange Polyester-cotton blended yarn.

Embodiment 3

[0041] The preparation of embodiment 3 super chelating ion exchange flax / viscose fiber blended yarn

[0042] According to the method and operation steps of Example 1, the commercially available 18S natural color slub cotton single yarn in Step 1 of Example 1 is replaced with a commercially available 18S linen / viscose fiber 55 / 45 blended yarn to obtain a super chelated ion exchange Linen / viscose blend thread.

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Abstract

The invention provides a super chelating ion exchange fiber which adopts one of cotton fiber, hemp fiber, wood fiber, bamboo fiber, grass fiber, polypropylene fiber, polyacrylonitrile fiber, vinylon, polyester or spandex or the blend fiber composed of more than two above fibers as fiber substrate; the fiber substrate is impregnated in cyanamide resin emulsion to obtain a cyanamide resin emulsion coated functional fiber which then reacts with 5-(chloromethyl)salicylaldehyde and hydroxylamine hydrochloride in turn, so that the functional fiber is introduced with quaternary ammonium group, salicylaldoxime and amidoxime and becomes the super chelating ion exchange fiber.

Description

technical field [0001] The invention relates to a super chelating ion exchange fiber, in particular to a chelating ion resin coated on the surface of the fiber, 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 abundant ion...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J45/00
Inventor 张田林马慧敏张晓波王佳佳于强
Owner 上海紫临实业有限公司
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