Preparation method of intelligent textile finishing agent with convertible surface hydrophobic and hydrophilic performance

A fabric finishing agent and intelligent technology, applied in the preparation of amino compounds from amines, fiber types, fiber treatment, etc., can solve the problems of poor thermal stability and low ground state energy level

Active Publication Date: 2019-08-27
SUZHOU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The trans configuration of azobenzene has a lower ground state energy level and better thermal stability, while the cis configuration has a higher ground state energy level than the trans configuration and poor thermal stability

Method used

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  • Preparation method of intelligent textile finishing agent with convertible surface hydrophobic and hydrophilic performance
  • Preparation method of intelligent textile finishing agent with convertible surface hydrophobic and hydrophilic performance
  • Preparation method of intelligent textile finishing agent with convertible surface hydrophobic and hydrophilic performance

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0084] (1) p -Nafluorobutylaniline

[0085] Add 3.44 g of p-bromoaniline, 5 g of copper powder (catalyst) and 100 ml of dimethyl sulfoxide (DMSO) into a 250 ml three-neck flask equipped with a magnetic stirrer, a thermometer and a condenser tube, stir and heat to 60 °C. Then 9 g of nonafluoroiodobutane was dissolved in 25 ml of DMSO and added to a constant pressure dropping funnel, and slowly dropped into a three-necked flask. After the nonafluoroiodobutane solution was added dropwise, the reaction system was heated to 120 °C and refluxed for 24 h. The reaction system was cooled to room temperature, and the reaction was poured into a 500 ml beaker, 100 ml of deionized water and 200 ml of anhydrous ether were added at the same time, the layers were stirred, and the copper powder was filtered off. Pour the filtrate into a 500 ml separatory funnel to separate the organic layer and wash it with deionized water (30 ml x 3 times), dry over anhydrous magnesium sulfate for 8 h, filt...

Embodiment 2

[0100] (1) p -Synthesis of Tridecafluorohexylaniline

[0101] Add 3.44 g of p-bromoaniline, 5 g of copper powder (catalyst) and 100 ml of dimethyl sulfoxide (DMSO) into a 250 ml three-necked flask equipped with a magnetic stirring bar, a thermometer and a condenser, and heat to 60 °C with stirring. Then 11.6 g trifluoroiodohexane was dissolved in 25 ml of DMSO and added to a constant pressure dropping funnel, and slowly dropped into a three-necked flask. After the dropwise addition of tridecafluoroiodohexyl solution was completed, the reaction system was heated to 120 °C and refluxed for 24 h. The reaction system was cooled to room temperature, the reaction was poured into a 500 ml beaker, 100 ml of deionized water and 200 ml of anhydrous ether were added at the same time, the layers were stirred, and the copper powder was filtered off. Pour the filtrate into a 500 ml separatory funnel to separate the organic layer and wash it with deionized water (30 ml x 3 times), dry over...

Embodiment 3

[0114] (1) p -Heptadecafluorooctylaniline

[0115] Add 3.45 g of p-bromoaniline, 5.15 g of copper powder (catalyst) and 100 ml of dimethyl sulfoxide into a 250 ml three-neck flask equipped with a magnetic stirring bar, a thermometer and a condenser, and heat to 60 °C with stirring. Then 9.21 g of heptadecafluoroiodoctane was dissolved in 25 ml of dimethyl sulfoxide and added to a constant pressure dropping funnel, and slowly dropped into a three-necked flask. After the nonafluoroiodobutane solution was added dropwise, the temperature of the reaction system was raised to 115° C. and refluxed for 12 hours. The reaction system was cooled to room temperature, and the reaction was poured into a 500 ml beaker, 100 ml of deionized water and 200 ml of anhydrous ether were added at the same time, the layers were stirred, and the copper powder was filtered off. Pour the filtrate into a 500 ml separatory funnel to separate the organic layer and wash with deionized water (30 ml × 3 time...

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Abstract

The invention discloses a preparation method of an intelligent textile finishing agent with convertible surface hydrophobic and hydrophilic performance. The active ingredient of the finishing agent isperfluoroalkyl azobenzene acrylate copolymer. As an initial raw material, perfluoroalkyl azophenol has esterification reaction with acryloyl chloride to obtain an acrylate monomer containing perfluoroalkyl azobenzene; and then the acryloyl chloride is polymerized with hydroxyethyl methylacrylate and butyl acrylate through an emulsion to prepare an acrylate copolymer emulsion containing the perfluoroalkyl azobenzene. During polymerization of the emulsion, by increasing the usage of an initiator, the polymerization degree of the obtained copolymer is low, the molecule main chain of the copolymer is shorter, the molecular chain twisting degree is small, therefore, molecular isomerism ability of side azobenzene is high to be beneficial for converting the surface hydrophobic and hydrophilic performance. The preparation method of the intelligent textile finishing agent with the convertible surface hydrophobic and hydrophilic performance, disclosed by the invention, has the advantages that the reaction condition is mild, the preparation process is simple and convenient and the preparation method is suitable for industrial production.

Description

[0001] The present invention is an intelligent fabric finishing agent with switchable surface affinity and hydrophobicity and its preparation method. The application date is April 18, 2017, and the application number is 2017102548550. It belongs to the part of the product preparation method. . technical field [0002] The invention relates to a fabric surface finishing agent, in particular to an intelligent fabric finishing agent with switchable surface affinity and hydrophobicity and a preparation method thereof, belonging to the fields of polymer synthesis and textile chemical auxiliary agents. Background technique [0003] The azobenzene polymer mainly introduces the azobenzene structural unit into the polymer chain through chemical bond connection. So far, researchers have synthesized a large number of azobenzene polymers, which are mainly divided into the following four types: terminal azobenzene polymers, side chain azobenzene polymers, and main chain azobenzene polyme...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F220/18C08F220/34C08F220/28C08F2/26C08F2/30D06M15/277C07C245/08D06M101/06D06M101/36
CPCC07C209/68C07C245/08C08F2/26C08F2/30C08F220/18C08F220/1804D06M15/277D06M2101/06D06M2101/36C07C211/45C08F220/34C08F220/281
Inventor 李战雄戴礼孙弋
Owner SUZHOU UNIV
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