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Preparation method for sustainable antibacterial nano-zinc oxide alginate fibers

A nano-zinc oxide and seaweed fiber technology, which is applied in the fields of fiber chemical characteristics, wet spinning method, rayon manufacturing, etc., can solve the problems of restricting the promotion of calcium alginate fiber dressings, increasing the cost of dressings, and the shedding of bacterial bodies, etc., to achieve antibacterial Good sustainability and stability, less engineering consumption and low cost

Inactive Publication Date: 2015-09-23
青岛源海新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The formed gel thin layer will also contain bacteria. If it is not removed in time, after the gel surface is saturated with adsorbed bacteria, the bacteria will fall off and cause wound infection.
[0006] Therefore, in the process of use, it is necessary to replace it in time, which not only increases the cost of dressing, but also limits the promotion of calcium alginate fiber dressing to a certain extent.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] Mix 0.2g of sodium alginate powder and 0.002g of nano-zinc oxide split particles evenly, pour them into a beaker containing 200ml of distilled water, and disperse evenly under ultrasonic conditions to prepare a sodium alginate base with a mass percentage of sodium alginate of 0.1%. Nano zinc oxide colloidal system.

[0035] Add 1.8 g of sodium alginate powder to the colloidal solution, and stir at 30° C. for 1 hour to prepare a nano-zinc oxide spinning solution with a mass percentage of sodium alginate of 1% and a viscosity of 2000 mpa·s.

[0036] The spinning solution is left to stand, filtered, defoamed, wet-spun, and the nano-zinc oxide seaweed primary fiber is produced in coagulation.

[0037] The spinning temperature is 10°C, the coagulation bath is 1% by mass calcium chloride solution, and the coagulation bath temperature is 30°C. The primary nano zinc oxide seaweed fiber is stretched, shaped, dehydrated and dried to obtain the nano zinc oxide seaweed fiber.

[...

Embodiment 2

[0043] Mix 1.0g of sodium alginate powder and 0.06g of nano-zinc oxide powder particles evenly, pour them into a beaker containing 200ml of distilled water, and disperse evenly under ultrasonic conditions to prepare a sodium alginate base with a mass percentage of sodium alginate of 0.5%. Nano zinc oxide colloidal system.

[0044] Add 4.0 g of sodium alginate powder to the colloidal solution, and stir for 2 hours at 30° C. to prepare a nano-zinc oxide spinning solution with a mass percentage of sodium alginate of 3% and a viscosity of 15,000 mpa·s.

[0045] The spinning solution is left to stand, filtered, defoamed, wet-spun, and the nano-zinc oxide seaweed primary fiber is produced in coagulation.

[0046] The spinning temperature is 20°C, the coagulation bath is a calcium chloride solution with a mass percentage of 5%, and the temperature of the coagulation bath is 30°C.

[0047] The primary nano zinc oxide seaweed fiber is stretched, shaped, dehydrated and dried to obtain ...

Embodiment 3

[0052] Mix 2.0g of sodium alginate powder and 0.3g of nano-zinc oxide powder particles evenly, pour them into a beaker containing 200ml of distilled water, and disperse evenly under ultrasonic conditions to prepare a sodium alginate base with a mass percentage of sodium alginate of 1%. Nano zinc oxide colloidal system.

[0053] Add 8.0 g of sodium alginate powder to the colloid solution, and stir for 2 hours at 40° C. to prepare a nano-zinc oxide spinning solution with a mass percentage of sodium alginate of 5% and a viscosity of 30,000 mpa·s.

[0054] The spinning solution is left to stand, filtered, defoamed, wet-spun, and the nano-zinc oxide seaweed primary fiber is produced in coagulation. The spinning temperature is 30°C, the coagulation bath is 10% by mass calcium chloride solution, and the coagulation bath temperature is 40°C.

[0055] The primary nano zinc oxide seaweed fiber is stretched, shaped, dehydrated and dried to obtain the nano zinc oxide seaweed fiber.

[0...

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Abstract

The invention discloses a preparation method for sustainable antibacterial nano-zinc oxide alginate fibers. The preparation method comprises the following steps: at first, uniformly mixing sodium alginate powder and nano-zinc oxide powder; adding distilled water, and carrying out uniform ultrasonic dispersion to prepare sodium alginate-based nano-zinc oxide colloid; adding plenty of fiber-grade sodium alginate powder to prepare a spinning solution; preparing the finished product, namely the nano-zinc oxide alginate fiber by a wet spinning step. The preparation method has the advantages that a series of technological means, such as stepped introducing of sodium alginate, are adopted skillfully, nano-zinc oxide can be uniformly dispersed and exist stably in a system, the final product, namely the nano-zinc oxide alginate fiber, is uniform and stable in quality, the prepared nano-zinc oxide alginate fiber is remarkable in antibacterial effect, bacteria growth can be inhibited effectively, and the nano-zinc oxide alginate fiber is safe and nontoxic, and can be widely applied to fields of medical treatment, military, health textile and the like.

Description

technical field [0001] The invention relates to a preparation method of seaweed fiber, in particular to a preparation method of sustainable antibacterial nano zinc oxide seaweed fiber. Background technique [0002] In the process of wound treatment, traditional dressings play the role of hemostasis, analgesia, anti-inflammation, and promotion of wound healing. [0003] Studies have shown that medical dressings made of calcium alginate fibers can exchange with wound exudate and sodium ions in blood to release calcium ions. Because calcium ions can accelerate the formation of blood clots at the end of capillaries, it has good hemostatic effect. [0004] As the amount of absorbed sodium ions increases, calcium alginate gradually turns into water-soluble sodium alginate, forming a thin gel layer on the surface of the wound, thereby preventing the adhesion of the dressing and the wound, reducing the pain of the patient, and at the same time keeping the wound surface A certain h...

Claims

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Application Information

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IPC IPC(8): D01F9/04D01F1/10D01D5/06
Inventor 夏延致朱顺生纪全王兵兵全凤玉
Owner 青岛源海新材料科技有限公司
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