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Method for performing temperature-sensitive modification on wool fabric by HRP enzymatic mercapto-alkene click reaction

A wool and fabric technology, applied in the application field of wool fabric dyeing and finishing, can solve the problems of high production cost, low wearability, insufficient energy saving and environmental protection, etc., and achieve the effect of mild conditions and prolonged intelligent characteristics

Active Publication Date: 2018-11-27
JIANGNAN UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

These woolen textiles have intelligent properties that ordinary textiles do not have, but they are high in production cost, low in wearability, and not energy-saving and environmentally friendly.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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  • Method for performing temperature-sensitive modification on wool fabric by HRP enzymatic mercapto-alkene click reaction
  • Method for performing temperature-sensitive modification on wool fabric by HRP enzymatic mercapto-alkene click reaction
  • Method for performing temperature-sensitive modification on wool fabric by HRP enzymatic mercapto-alkene click reaction

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] Embodiment 1: The woolen fabric selected in this example is all-wool gabardine.

[0036] (1) Thermosensitive polymer synthesis process: Add trithiocarbonate (CAT) and monomer N-(isopropylacrylamide) (NIPAAm) into a 50mL three-necked flask, add 20mL N,N-dimethyl Formamide makes the concentration of NIPAAm in the solution 10% (w / v), N 2 Stir under the atmosphere for 30min, add ammonium persulfate or azobisisobutyronitrile (AIBN), N 2 Stir under the atmosphere for 2h, the molar ratio of CAT:AIBN:NIPAAm is 1:0.1:50, after the reaction, precipitate with ether three times, and vacuum dry;

[0037] (2) The temperature-sensitive polymer terminal olefin treatment process: the temperature-sensitive polymer of step (1) is dissolved in DMF (20mL), makes the temperature-sensitive polymer concentration in the solution be 10% (w / v), adds ethanolamine and A small amount of sodium dithionite, the reaction mixture was stirred at room temperature for 1 h, then 2-hydroxyethyl acrylate wa...

Embodiment 2

[0045] Embodiment 2: the selected wool fabric of this example is full wool serge.

[0046] (1) Synthesis process of temperature-sensitive polymer: Add trithiocarbonate (CAT) and monomer N-(isopropylacrylamide) into a 50mL three-neck flask, add 20mL N,N-dimethylformamide to make The concentration of NIPAAm in the solution is 10% (w / v), N 2 Stir under the atmosphere for 30min, add ammonium persulfate or azobisisobutyronitrile, N 2 Under the atmosphere for 2 hours, the molar ratio of CAT:AIBN:NIPAAm is 1:0.1:50. After the reaction, precipitate with ether three times and dry in vacuum;

[0047] (2) The temperature-sensitive polymer terminal olefin treatment process: the temperature-sensitive polymer in step (1) is dissolved in DMF (20mL), so that the concentration of the temperature-sensitive polymer in the solution is 10% (w / v), and ethanolamine is added and a small amount of sodium dithionite, the reaction mixture was stirred at room temperature for 1 h, then 2-hydroxyethyl ac...

Embodiment 3

[0055] Embodiment 3: The woolen fabric selected in this example is all-wool gabardine.

[0056] (1) Thermosensitive polymer synthesis process: Add trithiocarbonate and monomer N-(isopropylacrylamide) into a 50mL three-necked flask, add 20mL N,N-dimethylformamide to make NIPAAm in the solution Concentration of 10% (w / v), N 2 Stir under the atmosphere for 30min, add ammonium persulfate or azobisisobutyronitrile, N 2 Under the atmosphere for 2h, the molar ratio of CAT:AIBN:NIPAAm is 1:0.1:50. After the reaction, precipitated three times with ether and dried in vacuum;

[0057] (2) The temperature-sensitive polymer terminal olefin treatment process: the temperature-sensitive polymer in step (1) is dissolved in DMF (20mL), so that the concentration of the temperature-sensitive polymer in the solution is 10% (w / v), and ethanolamine is added and a small amount of sodium dithionite, the reaction mixture was stirred at room temperature for 1 h, then 2-hydroxyethyl acrylate was added...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Abstract

The invention discloses a method for performing temperature-sensitive modification on a wool fabric by an HRP enzymatic mercapto-alkene click reaction and belongs to the technical field of applicationof wool fabric dyeing and finishing in the wool textiles. The method disclosed by the invention comprises the following steps: by utilizing temperature-sensitive characteristics of PNIPAm, linking anend group of the synthesized PNIPAm to vinyl, grafting the PNIPAm onto the surface of the wool fabric by virtue of the reaction mechanism of the mercapto-alkene click reaction by utilizing the catalytic characteristic of the HRP enzyme, and performing intelligent finishing on the wool fabric. The wool fabric treated by the method presents different hydrophilic-hydrophobic properties at differenttemperatures, the strength of the wool fabric is improved to a certain degree, and the strong repairing effect is achieved. Compared with the traditional chemical process, the method using the HRP enzymatic reaction is less in pollution and environment-friendly. Moreover, the PNIPAm, is finished onto the fabric in a covalent bond form, and the functionality is lasting, which is the outstanding advantage of the method compared with other processes.

Description

technical field [0001] The invention relates to a method for thermosensitive modification of wool fabrics by HRP enzyme catalyzed mercapto-ene click reaction, and belongs to the application technical field of wool fabric dyeing and finishing processing in the wool spinning industry. Background technique [0002] With the improvement of living standards and the development of science and technology, the application fields of textiles such as wool fiber continue to expand. health care etc. Using chemical, physical, biological, nanotechnology and other means to give it multi-functionality is a research hotspot in textile technology at present, and intelligent wool fiber fabric will also be part of the future market demand. [0003] Smart woolen textiles are highly intelligent woolen textiles developed through multiple disciplines such as textiles, electronics, chemistry, biology, and medicine. Based on the concept of bionics, smart woolen textiles can simulate living systems a...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06M15/285C08F120/54C08F8/00D06M101/12
CPCC08F8/00C08F120/54D06M15/285D06M2101/12
Inventor 王强张盼朱华君余圆圆邱晓忠范雪荣王平袁久刚崔莉
Owner JIANGNAN UNIV
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