A kind of polymer antibacterial agent for water-based ecological synthetic leather and preparation method thereof

A polymer antibacterial agent and synthetic leather technology, applied in the field of chemical additives, can solve the problem of the failure of antibacterial agents, and achieve the effect of strong antibacterial activity, good compatibility and good migration resistance.

Active Publication Date: 2017-04-12
SICHUAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the large difference in the charge properties of the two, they are easy to combine with each other to form precipitation, resulting in the failure of the antibacterial agent, and cannot be directly added to the water-based resin to make ecological synthetic leather.

Method used

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  • A kind of polymer antibacterial agent for water-based ecological synthetic leather and preparation method thereof
  • A kind of polymer antibacterial agent for water-based ecological synthetic leather and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] (1) Mix 10 parts of ciprofloxacin, 4 parts of pyridine and 300 parts of dichloromethane, stir at 0°C for 30 minutes, then add 13 parts of acryloyl chloride dropwise under continuous stirring and protection of inert gas, after the dropwise addition The temperature was raised to 20° C. and reacted for 1 hour; after the reaction was completed, the above mixture was poured into n-hexane, and the precipitation was repeatedly washed with water and dried to obtain vinylated ciprofloxacin.

[0027] (2) 10 parts of vinylated ciprofloxacin, 200 parts of acrylic acid, 2 parts of azobisisobutyronitrile and 500 parts of tetrahydrofuran were mixed uniformly, under inert gas protection and continuous stirring, refluxed at 80 ° C for 20 hours, the reaction After completion, the above mixture is poured into cyclopentane, and the product is directly dissolved in deionized water after drying to obtain a water-soluble polymer antibacterial agent.

[0028] Mix 0.5 parts of the polymer antib...

Embodiment 2

[0031] (1) Mix 15 parts of norfloxacin, 6 parts of triethylamine and 400 parts of dichloromethane, stir at 2°C for 40 minutes, then add 6 parts of acryloyl chloride dropwise under continuous stirring and inert gas protection, add dropwise After completion, the temperature was raised to 25° C. to react for 1.5 hours; after completion of the reaction, the above mixture was poured into n-hexane, and the precipitation was repeatedly washed with water and dried to obtain vinyl norfloxacin.

[0032] (2) Mix 14 parts of vinyl norfloxacin, 260 parts of acrylic acid, 6 parts of azodicyclohexanitrile and 600 parts of N'N-dimethylformamide, under the protection of inert gas and continuous stirring, The mixture was refluxed at 70° C. for 24 hours. After the reaction was completed, the above mixture was poured into diethyl ether. After drying, the product was directly dissolved in deionized water to obtain a water-soluble polymer antibacterial agent.

[0033] Mix 0.5 parts of the polymer ant...

Embodiment 3

[0036] (1) 20 parts of enoxacin, AlCl 3 8 parts and 450 parts of tetrahydrofuran were mixed evenly, stirred at 3°C ​​for 50 minutes, then 8 parts of 4-pentenoyl chloride were added dropwise under continuous stirring and under the protection of inert gas, and the temperature was raised to 25°C for 2 hours after the completion of the reaction; , the above mixture was poured into n-hexane, and the precipitation was repeatedly washed and dried to obtain vinylated enoxacin;

[0037] (2) Mix 18 parts of vinylated enoxacin, 320 parts of acrylic acid, 8 parts of azobisisoheptanenitrile and 700 parts of ethanol, under the protection of inert gas and continuous stirring, reflux at 70 ° C for 26 hours to react After completion, the above mixture is poured into petroleum ether, and the product is directly dissolved in deionized water after drying to obtain a water-soluble polymer antibacterial agent.

[0038] Mix 0.5 parts of the polymer antibacterial agent prepared above, 100 parts of w...

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Abstract

The invention discloses a macromolecule antibacterial agent used for water-based ecological synthetic leather and a preparation method thereof. The antibacterial agent is prepared from vinylation fluoroquinolones and acrylic acid in a copolymerization mode, wherein the number-average molecular weight ranges from 15000 to 25000. The macromolecule antibacterial agent has a wide antibacterial spectrum, is high in antibacterial activity, can be dissolved in water, is good in compatibility with anionic water-base resin used for the synthetic leather and has the advantages of low toxicity (high biological selectivity) and good heat resistance / mobility resistance, a water-based synthetic leather coating can be endowed with durable, efficient and safe antibacterial mildew-proof performance, and the ecological grade and quality grade of the synthetic leather can be remarkably increased.

Description

technical field [0001] The invention relates to a macromolecular antibacterial agent for water-based ecological synthetic leather and a preparation method thereof, belonging to the field of chemical auxiliaries. Background technique [0002] With the development of human society, the imbalance between the supply of natural leather and the growing demand has become more and more prominent, which can no longer meet people's needs for extensive use of leather apparel fabrics. At the same time, the natural leather industry is also facing downward pressure caused by multiple factors such as shortage of raw material skins, low production efficiency, low utilization rate, environmental protection, and increased consumer awareness of animal protection, and the future development space is limited. Since the 1930s, people have begun to use various chemical raw materials and methods to manufacture substitutes for natural leather, namely artificial leather. Today, the development of ar...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08F220/06C08F216/36D06M15/564D06M15/263
Inventor 陈意常金明范浩军颜俊金勇
Owner SICHUAN UNIV
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