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Fiber material containing sulfonic groups, and synthesis method thereof

A fiber material, technology containing sulfonic acid groups, applied in fiber types, fiber treatment, textiles and papermaking, etc., to achieve the effect of mild reaction conditions, easy control of reaction conditions, and good mechanical strength

Active Publication Date: 2011-06-15
北京超尊科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

There are few reports on direct synthesis methods

Method used

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  • Fiber material containing sulfonic groups, and synthesis method thereof
  • Fiber material containing sulfonic groups, and synthesis method thereof
  • Fiber material containing sulfonic groups, and synthesis method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] Put 20g of taurine, 6g of sodium hydroxide, and 30g of ethylene glycol into a three-neck flask and stir to dissolve, put in 1g of acrylic fiber, and react at a temperature of 100°C for 10h. After the reaction, take out the fiber and wash it with deionized water for 70 ℃ drying to constant weight, the fiber weight is 1.16g, and the weight gain rate is 16%. The sulfonic acid group content of the fiber was measured to be 0.52 mmol / g, and the breaking force was 0.085N. The sulfonic acid group content of the raw acrylic fiber is 0, and the breaking force is 0.105N. Its infrared spectrum is as figure 1 As shown, there is a significant change compared with the infrared spectrum of acrylic fiber, and the absorption peak of cyano group (2244cm -1 ) was obviously weakened, and the absorption peak of sulfonic acid group appeared (1229cm -1 、1176cm -1 、1045cm -1 ).

Embodiment 2

[0020] Put 20g of taurine, 6g of sodium hydroxide, and 45g of ethylene glycol into a three-necked flask and stir to dissolve, put in 1g of acrylic fiber, and react at a temperature of 115°C for 5h. After the reaction, take out the fiber and wash it with deionized water, 70 ℃ drying to constant weight, the fiber weight is 1.27g, and the weight gain rate is 27%. The sulfonic acid group content of the fiber was measured to be 0.95 mmol / g, and the breaking force was 0.057N. The change situation of its infrared spectrum is identical with embodiment 1.

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Abstract

The invention discloses a fiber material containing sulfonic groups, and a synthesis method thereof, and belongs to the technical field of polymer materials. The synthesis method comprises the steps of taking acrylic fiber as a basic skeleton, introducing the sulfonic group into glycol solution containing taurine and inorganic base through the grafing reaction of acrylic fiber and taurine and obtaining a novel fiber material containing sulfonic groups. The synthesis method has the advantages of simple process, easy control and mild reaction conditions, and synthesized fiber can maintain good mechanical strength. All chemical reagents adopted in the synthesis method are non-toxic or low-toxic reagents, and no toxic by-products are generated during reaction, so the method is an environment-friendly synthesis method compared with the prior art.

Description

technical field [0001] The invention relates to a fiber material and a synthesis method thereof, in particular to a sulfonic acid group-containing fiber material and a synthesis method thereof, and belongs to the technical field of polymer materials. Background technique [0002] Due to the existence of sulfonic acid groups, the fiber material containing sulfonic acid groups can be used as an ion exchanger, which has broad application prospects in environmental protection, resource recovery and regeneration, and separation and enrichment of elements. [0003] At present, the preparation methods of sulfonic acid-containing fiber materials can be roughly divided into the following three types: [0004] 1. Post-sulfonation of fiber-grafted monomers: The inert matrix of natural or synthetic fibers is grafted with compounds containing benzene rings by radiation or chemical initiation, and then a sulfonating agent is used to introduce sulfonic acid groups on the benzene rings. CN...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D06M13/342D06M101/28
Inventor 赵亮赵东何钦雅黄伟庆沙保峰王静V.S.萨达托夫
Owner 北京超尊科技有限公司