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Application of intelligent surface affinity and repellency convertible fabric finishing liquid in fabric finishing

A fabric finishing and intelligent technology, applied in physical treatment, fiber type, fiber treatment, etc., can solve the problems of low ground state energy level, poor thermal stability, etc.

Active Publication Date: 2018-11-30
NANTONG TEXTILE & SILK IND TECH RES INST
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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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  • Application of intelligent surface affinity and repellency convertible fabric finishing liquid in fabric finishing
  • Application of intelligent surface affinity and repellency convertible fabric finishing liquid in fabric finishing
  • Application of intelligent surface affinity and repellency convertible fabric finishing liquid in fabric finishing

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0085] (1) p -Nafluorobutylaniline

[0086] 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

[0101] (1) p -Synthesis of Tridecafluorohexylaniline

[0102] 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 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 anhydrous ...

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 an application of an intelligent surface affinity and repellency convertible fabric finishing liquid in fabric finishing. The effective component of the finishing liquid is a perfluoroalkylazophenyl acrylate copolymer. Perfluoroalkylazophenol used as an initial raw material and acryloyl chloride undergo an esterification reaction to obtain a perfluoroalkylazophenyl group-containing acrylate monomer, and the monomer, hydroxyethyl methylacrylate and butyl acrylate undergo emulsion polymerization to prepare a perfluoroalkylazophenyl group-containing acrylate copolymer emulsion. The use amount of an initiator is increased during emulsion polymerization, so the obtained copolymer has a low polymerization degree, a short copolymer molecular main chain and a small molecular chain winding degree, thereby the molecular isomerism capability of a side group azophenyl group is strong, and the affinity and repellency conversion of the surface is benefited. An intelligent water-repellent finishing agent provided by the invention has the advantages of mild reaction conditions, simple preparation process, and suitableness for industrial production.

Description

[0001] The present invention belongs to a divisional application of an intelligent surface affinity switchable fabric finishing solution and a preparation method thereof, the application date is April 18, 2017, and the application number 2017102548616 is a patent application, and belongs to the product application technology part. technical field [0002] The invention relates to a fabric surface finishing solution, in particular to an intelligent fabric finishing solution with switchable surface affinity and hydrophobicity and a preparation method thereof, belonging to the fields of polymer synthesis and textile chemical additives. 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 polyme...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F220/18C08F220/34C08F220/20C08F2/26C08F2/30D06M15/277D06M10/10D06M101/06D06M101/32
CPCD06M10/10D06M15/277C08F2/26C08F2/30C08F220/18D06M2101/32D06M2200/12D06M2101/06C08F220/1804C08F220/281C08F220/34C08F220/20
Inventor 李战雄孙弋戴礼
Owner NANTONG TEXTILE & SILK IND TECH RES INST
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