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Thiol acrylic fiber material and synthesis method thereof

A technology of acrylic fiber and fiber material, applied in the direction of fiber type, fiber processing, textile and paper making, etc., to achieve the effect of good mechanical strength, stable quality and easy control

Active Publication Date: 2013-03-20
HENAN ACADEMY OF SCI CHEM RES INST CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In the above-mentioned literature reports, "Preparation of mercaptopolyvinyl alcohol fiber and research on its adsorption performance", "Synthesis of mercaptopolyvinyl alcohol fiber and research on its adsorption performance", "Systematic studies on adsorption of 11 trace heavy metals on thiol cotton fiber" and "Synthesis of thiol-functionalized spent grain as a novel adsorbent for divalent metal ions" are through the esterification reaction between the carboxyl group of thioglycolic acid and the hydroxyl group on the fiber to realize the introduction of sulfhydryl group; CN1580337A is through first making cellulose and halogen substituted acid for esterification reaction, and then alkyl halide mercaptolation, thereby introducing mercapto group in cellulose; CN1279308A introduces chloromethyl group to crosslinked polystyrene / polypropylene blend fiber, and then utilizes N,N -Diethylamine methyl thiopropane and chloromethyl group are functionalized to introduce mercapto functional groups into the blended fibers; The organic compound (or its hydrochloride) of mercapto group and acrylic fiber are directly chemically grafted, and the synthesis method of introducing mercapto group into the fiber through a one-step reaction has not yet been reported.

Method used

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  • Thiol acrylic fiber material and synthesis method thereof
  • Thiol acrylic fiber material and synthesis method thereof
  • Thiol acrylic fiber material and synthesis method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0017] Put 1.5 g of cysteine ​​hydrochloride, 0.684 g of sodium carbonate, and 150 mL of glycerol into a three-neck flask, stir, and dissolve with slight heat. After the reaction, the fibers were taken out and washed with deionized water until neutral; soaked in 0.2 mol / L hydrochloric acid for 3 h. After the reaction, the fibers were taken out, washed with deionized water until neutral, and dried at 45°C to constant weight. The weighed fiber mass was 1.139 g, which was 13.9% heavier than before the reaction, and the grafted amount was 0.139 g·g -1 fiber. The mercapto group content of the fibers synthesized in this example was measured to be 0.46 mmol g by indirect iodometric method (Journal of Hazardous Materials, 2009, 168, 1575-1580). -1 .

Embodiment 2

[0019] Put 10 g of cysteine ​​hydrochloride, 4.6 g of sodium hydroxide, and 250 mL of glycerol into a three-neck flask and stir, and dissolve it by slight heating. Put in 10 g of acrylic fiber, and react at a temperature of 130°C for 4.5 h. After the reaction, the fibers were taken out and washed with deionized water until neutral; soaked in 0.2 mol / L hydrochloric acid for 3 h, after the reaction was completed, the fibers were taken out, washed with deionized water until neutral, and dried at 45°C to constant weight . The weighed fiber mass was 13.430 g, which was 34.3% heavier than before the reaction, and the grafted amount was 0.343 g·g -1 fiber. The mercapto group content of the fibers synthesized in this example was measured to be 1.56 mmol g by indirect iodometric method (Journal of Hazardous Materials, 2009, 168, 1575-1580). -1 .

Embodiment 3

[0021] Put 5 g of mercaptoethylamine hydrochloride, 1.76 g of potassium hydroxide, and 100 mL of ethylene glycol into a three-necked flask, stir, heat slightly to dissolve, add 5 g of acrylic fibers, and react at a temperature of 125-130°C for 3 h After the reaction, the fibers were taken out and washed with deionized water until neutral; soaked in 0.5 mol / L hydrochloric acid for 3 h, after the reaction, the fibers were taken out, washed with deionized water until neutral, and dried at 45°C until constant Heavy. The weighed fiber mass was 7.965 g, which was 59.3% heavier than before the reaction, and the grafted amount was 0.593 g·g -1 fiber. The mercapto group content of the fibers synthesized in this example was measured to be 5.08 mmol g by indirect iodometric method (Journal of Hazardous Materials, 2009, 168, 1575-1580). -1 .

[0022] The infrared spectrum of the synthetic fiber in embodiment 1, embodiment 2, embodiment 3 is as attached figure 1 Shown in b, c, d. The ...

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Abstract

The invention discloses a thiol acrylic fiber material and a synthesis method thereof and belongs to the technical field of high polymer materials. The method comprises the following steps: taking an acrylic fiber as a raw material fiber, introducing a thiol through a chemical grafting reaction between the acrylic fiber and an organic compound (comprising cysteine, mercaptoethylamine, o-amido thiophenol and the like) containing amido and thiol, so as to obtain a novel functional fiber material. The functional fiber material is high in group content, keeps good form and strength and has application prospects in aspects such as functional textiles, water and air purification, chemical substance separation and extraction and the like. The synthesis method is simple in process, mild in conditions and easy to control, the used chemical raw materials are non-toxic or low-toxic, the raw material consumption is low in reaction process, no toxic by-product is generated, and the method is an environment-friendly synthesis method.

Description

technical field [0001] The invention relates to a fiber material and a synthesis method thereof, in particular to a mercaptoacrylic fiber material and a synthesis method thereof, and belongs to the technical field of polymer materials. Background technique [0002] Functionalization of common textile fibers (synthetic fibers and natural fibers) not only maintains the original characteristics and advantages of fibers, but also has various special properties and uses. Research in this field has been increasingly popular in recent years. focus on. Textile fibers are a good source of raw materials for new materials due to their abundant supply, variety and affordable prices. Chemical modification is an important means of functionalizing fibers. Through the chemical reaction between the active chemical groups carried by the fibers and certain molecules or ions, the fibers have new surface chemical properties, so that they have antistatic, water-absorbing, moisturizing, and adsor...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06M13/342D06M13/328D06M13/335D06M101/28
Inventor 赵亮王静段文杰赵东
Owner HENAN ACADEMY OF SCI CHEM RES INST CO LTD
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