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Phosphonium salt modified acrylic fibre antibacterial material and preparation method thereof

A technology of polyacrylonitrile fiber and polyacrylonitrile, which is applied in the direction of fiber type, fiber treatment, textiles and papermaking, etc., which can solve the problems of high cost, environmental pollution, and easy aging of resin, and achieve easy operation, environmental friendliness, and energy saving consumption effect

Active Publication Date: 2013-08-28
HENAN ACADEMY OF SCI CHEM RES INST CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the above fungicides use organic polymer resins as carriers in the synthesis, which is costly, and use organic solvents in the production process, and the excessive dosage will easily cause environmental pollution
In addition, the resin is prone to aging after long-term use
But there is no research report on the antibacterial material of quaternary phosphonium salt modified polyacrylonitrile fiber

Method used

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  • Phosphonium salt modified acrylic fibre antibacterial material and preparation method thereof
  • Phosphonium salt modified acrylic fibre antibacterial material and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0023] (1) Add hydrazine hydrate and polyacrylonitrile fibers into the reaction kettle, vacuumize or flush nitrogen in a closed container, heat up and react, and naturally cool down to room temperature after the reaction, and control the fiber weight gain rate. Then add NaOH solution into the reactor, seal the reactor, heat up, wash and dry to obtain Na-type ion exchange fiber.

[0024] (2) Weigh 2.5022g of methyltriphenylphosphonium bromide (0.07mol / L), dissolve it in 100mL of distilled water, stir to dissolve completely; add 0.5g of Na-type polyacrylonitrile fiber, shake and react at 50°C for 8h, so that the fiber is fully After swelling, the resulting product was washed with distilled water until no bromide ions existed (with 0.1mol / L AgNO 3 inspection), and dried to constant weight. The weight of the modified antibacterial fiber is 0.638g, and the content of methyltriphenylphosphonium is 3.02%.

[0025] The samples were analyzed by infrared spectroscopy, and the results ...

Embodiment 2

[0027] The preparation of Na type polyacrylonitrile fiber is as embodiment 1.

[0028] Weigh 0.8526g of hexyltriphenylphosphonium bromide (0.02mol / L), dissolve it in 100mL of distilled water, stir to dissolve completely; add 0.5g of Na-type polyacrylonitrile fiber, shake and react at 30°C for 6 hours to fully swell the fiber, and the obtained product Wash with distilled water until no bromide ion exists (with 0.1mol / L AgNO 3 inspection), and dried to constant weight. The weight of the modified antibacterial fiber is 0.620g, and the content of hexyltriphenylphosphonium is 2.11%.

[0029] The samples were analyzed by infrared spectroscopy, and the results were as follows: figure 1 Shown, compared with the Na-type polyacrylonitrile fiber of curve 1, several characteristic absorption peaks have been added in curve 3 (same as curve 4), 1113cm -1 and 996cm- 1 is the bending vibration absorption peak of the P-Ph bond, , 725cm -1 and 691cm -1 It is the C-P bond stretching vibrat...

Embodiment 3

[0031] The preparation of Na type polyacrylonitrile fiber is as embodiment 1.

[0032] Weigh 5.1043g of dodecyltriphenylphosphonium bromide (0.1mol / L), dissolve it in 100mL of distilled water, stir to dissolve completely; add 0.5g of Na-type polyacrylonitrile fiber, shake and react at 60°C for 4h to fully swell the fiber , the resulting product was washed with distilled water until no bromide ions existed (with 0.1mol / L AgNO 3 inspection), and dried to constant weight. The weight of the modified antibacterial fiber is 0.85g, and the content of dodecyltriphenylphosphonium is 5.03%.

[0033] The samples were analyzed by infrared spectroscopy, and the results were as follows: figure 1 As shown, compared with the Na-type polyacrylonitrile fiber in curve 1, there are several new characteristic absorption peaks in curve 4 (same as curve 3), 1113cm -1 and 996cm -1 It is the bending vibration absorption peak of P-Ph bond, 725cm -1 and 691cm -1 It is the C-P bond stretching vibra...

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Abstract

The invention discloses a phosphonium salt modified acrylic fibre antibacterial material and a preparation method thereof, belonging to the field of polyacrylonitrile modified materials. Na type polyacrylonitrile fibre is taken as a carrier, an ion exchange method is adopted, and a part with anion removed of triphenyl phosphonium bromide containing different carbon chain lengths is exchanged to the polyacrylonitrile fibre by adopting an ion exchange method so as to prepare the phosphonium salt modified acrylic fibre antibacterial material. The material combines an antibacterial effect of the phosphonium salt and excellent mechanical and textile performances of the polyacrylonitrile fibre, thus fully taking the advantages of the phosphonium salt and the polyacrylonitrile fibre, and achieving efficient, rapid and permanent antibacterial purposes. The preparation method is simple, convenient to operate and environment-friendly, and can be widely used for development of various antibacterial textiles and sterilization of all kinds of industrial and domestic water.

Description

technical field [0001] The invention relates to a quaternary phosphonium salt modified polyacrylonitrile antibacterial material and a preparation method, belonging to the field of polyacrylonitrile modified materials. Background technique [0002] With the improvement of the quality of life, people have higher requirements for the antibacterial properties of durable consumer goods such as clothing, hygiene products, daily necessities, and food packaging. In addition, the use of antibacterial products in public places can effectively inhibit the growth of bacteria and prevent the spread and infection of bacteria. At present, the demand for antibacterial materials is increasing day by day, and the research on antibacterial materials has also attracted more and more attention. More safe, efficient, and cheap antibacterial agents and antibacterial products have been developed. [0003] There are many studies on quaternary ammonium salts as antibacterial group antibacterial age...

Claims

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Application Information

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IPC IPC(8): D06M13/282D06M11/63D06M11/38D06M101/28
Inventor 赵亮常丽张小转刘选明
Owner HENAN ACADEMY OF SCI CHEM RES INST CO LTD
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