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Nano-silver containing polyvinyl alcohol/sericin composite fleece for medical dressing

A technology of composite fiber mesh and nanofiber mesh, applied in the direction of fiber processing, fiber chemical characteristics, conjugated synthetic polymer rayon, etc., can solve problems such as weak antibacterial ability, achieve good biocompatibility, avoid localization The effect of agglomeration and inhibition of scarring

Active Publication Date: 2017-10-17
枝江市凯达纺织有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the carboxymethyl group with strong water absorption performance is introduced into the chitosan fiber, which increases its hygroscopicity and chelating ability to metal ions, but it has the problem of weak antibacterial ability.

Method used

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  • Nano-silver containing polyvinyl alcohol/sericin composite fleece for medical dressing
  • Nano-silver containing polyvinyl alcohol/sericin composite fleece for medical dressing
  • Nano-silver containing polyvinyl alcohol/sericin composite fleece for medical dressing

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] A preparation method for a nano-silver polyvinyl alcohol / sericin composite fiber web used for medical dressings, comprising the following steps:

[0032] (1) Weigh 0.02g of nano-silver powder, use 89.98g of deionized water as a solvent, and place it in an ultrasonic cleaner for ultrasonic dispersion for 45 minutes until the nano-silver is completely dispersed and dissolved. out of the container;

[0033] (2) Weigh 8g of polyvinyl alcohol, pour it into nano-silver solution, swell at room temperature for 30 minutes, then place it in a constant temperature magnetic water bath, dissolve it in a 98°C water bath for 4 hours, and cool at room temperature for 50 minutes;

[0034] (3) Weigh 2g of sericin, pour it into the PVA / AGNPs solution, then place it in a constant temperature magnetic water bath, and dissolve it in a water bath at 60°C for 1 hour until it is completely dissolved;

[0035] (4) Electrospinning is carried out to the obtained nano-silver / polyvinyl alcohol / seri...

Embodiment 2

[0038] A preparation method for a nano-silver polyvinyl alcohol / sericin composite fiber web used for medical dressings, comprising the following steps:

[0039] (1) Weigh 0.03g of nano-silver powder, use 89.97g of deionized water as a solvent, put it in an ultrasonic cleaning machine for ultrasonic dispersion for 45min, until the nano-silver is completely dispersed and dissolved, then stir on a magnetic stirrer, and after 30min, remove from the magnetic stirring out of the container;

[0040] (2) Weigh 8g of polyvinyl alcohol, pour it into nano-silver solution, swell at room temperature for 30 minutes, then place it in a constant temperature magnetic water bath, dissolve it in a 95°C water bath for 4 hours, and cool at room temperature for 50 minutes;

[0041] (3) Weigh 2g of sericin, pour it into the PVA / AGNPs solution, then place it in a constant temperature magnetic water bath, and dissolve it in a water bath at 60°C for 1 hour until it is completely dissolved;

[0042] (4...

Embodiment 3

[0045]A preparation method for a nano-silver polyvinyl alcohol / sericin composite fiber web used for medical dressings, comprising the following steps:

[0046] (1) Weigh 0.04g of nano-silver powder, use 89.96g of deionized water as a solvent, put it in an ultrasonic cleaner for ultrasonic dispersion for 45min, until the nano-silver is completely dispersed and dissolved, then stir it on a magnetic stirrer, and then remove it from the magnetic stirrer after 30min out of the container;

[0047] (2) Weigh 8g of polyvinyl alcohol, pour it into nano-silver solution, swell at room temperature for 30 minutes, then place it in a constant temperature magnetic water bath, dissolve it in a 93°C water bath for 4 hours, and cool at room temperature for 50 minutes;

[0048] (3) Weigh 2g of sericin, pour it into the PVA / AGNPs solution, then place it in a constant temperature magnetic water bath, and dissolve it in a water bath at 60°C for 1 hour until it is completely dissolved;

[0049] (4)...

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Abstract

The invention discloses nano-silver containing polyvinyl alcohol / sericin composite fleece for a medical dressing. The composite fleece is composed of nano silver and polyvinyl alcohol / sericin nano fiber, and nano silver is uniformly distributed on the surface and the interior of the nano fiber. In a preparation method of the nano-silver containing polyvinyl alcohol / sericin composite fleece, nano-silver particles are uniformly distributed in the polyvinyl alcohol / sericin nano fiber in a spinning mode, the phenomenon that nano-silver particles are likely to be subjected to local agglomeration is effectively avoided, the condition is mild, operation is easy, and the repetition rate is high. According to the nano-silver containing polyvinyl alcohol / sericin composite fleece, the air permeability is good, the excellent mechanical property and water-absorption rate are achieved, multiple bacteria can be effectively killed, the sterilization speed is high, lasting bacteriostasis is achieved, and the nano-silver containing polyvinyl alcohol / sericin composite fleece can be used for the medical dressing.

Description

technical field [0001] The invention belongs to the fields of medical hygiene and textile fiber processing, and in particular relates to a polyvinyl alcohol / sericin composite fiber net containing nano-silver for medical dressings. Background technique [0002] Skin wounds are easily infected by bacteria, leading to suppuration of the wound and aggravating the condition. In the prior art, medical staff often use sterilized cotton gauze to bandage the wound. On the one hand, it can temporarily prevent the contact between the wound and the outside world. On the other hand, the good hygroscopic properties of cotton yarn can be used to absorb the exudate from the wound. However, cotton yarn itself does not have antibacterial effect, and needs to be replaced in time to prevent the bacteria growing on the cotton yarn from infecting the wound, which not only increases the workload of medical staff, but also is not conducive to the health recovery of patients. [0003] Nanomaterials...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D04H1/728D04H1/4382D01D5/00D01F8/10D01F8/02D01F1/10
CPCD01D5/003D01F1/103D01F8/02D01F8/10D04H1/4382D04H1/728D10B2211/22D10B2321/06D10B2401/13D10B2509/022
Inventor 张显华张岑岑齐瑞玲冯向伟杨明霞魏世豪袁明中张海霞
Owner 枝江市凯达纺织有限责任公司