Silver-carried alginic acid fiber and preparation method thereof

An alginate fiber and silver-carrying technology can be used in fiber processing, textiles, and papermaking, etc., and can solve unevenness; such as the Chinese invention patent, alginate fiber dressings are easy to harden, and the treatment uniformity is poor. Ease of processing and reduced waste

Active Publication Date: 2012-03-14
ZHANGJIAGANG NELLNANO TECH +1
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  • Description
  • Claims
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Problems solved by technology

There are generally two types of preparation of silver-loaded alginate fibers: one is added to the alginate fiber spinning solution or coagulation bath, such as adding sulfadiazine sodium and silver nitrate to the alginate fiber spinning solution to make the spinning solution Particles containing silver sulfadiazine, or directly adding silver-containing zirconium phosphate sodium salt nanopowder in the spinning solution, and obtaining silver-loaded alginic acid fibers through silk, such as the document "Preparation method and properties of silver-containing alginic acid fibers" ( [J] Journal of Textile Science, 2005, 7 (2): 126~128), reported that silver nitrate is directly added in the calcium chloride aqueous solution of alginic acid fiber spinning coagulation bath, the method for preparing silver-loaded alginic acid fiber; The second is added during the post-processing of alginate fibers. In the Chinese invention patent "Simple Method for Quickly Adding Silver Ions to Alginate Fibers for Steriliza

Method used

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  • Silver-carried alginic acid fiber and preparation method thereof

Examples

Experimental program
Comparison scheme
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Example Embodiment

[0017] Example 1

[0018] The Chinese invention patent "Method for preparing nano-silver colloidal solution" with the publication number CN101837465A discloses a technical scheme for preparing a nano-silver colloidal solution, which combines an alkylated cyclodextrin aqueous solution with a mass percentage of 0.1% to 10% The silver ammonia solution with a molar concentration of 0.01 to 1.0 mol / L is mixed in a volume ratio of 1:100 to 1:10, and stirred at a temperature of 10 to 100°C for 1 to 120 minutes to obtain an average particle size of 1 to 100nm nano silver colloidal solution.

[0019] In this embodiment, according to the above technical scheme, the alkylated cyclodextrin aqueous solution with a mass percentage of 0.5% and the silver ammonia solution with a molar concentration of 0.5 mol / L are mixed at a volume ratio of 1:10, and the mixture is mixed at a volume ratio of 1:10. Stir for 20 minutes at a temperature of ℃ to obtain a nano-silver colloidal solution with an averag...

Example Embodiment

[0028] Example 2

[0029] According to the technical scheme of Example 1, an aqueous solution of nano silver was prepared.

[0030] Immerse 1 kg of alginic acid fiber in the above-mentioned nano silver aqueous solution with a concentration of 20ug / L, and immerse the place for 60 minutes at a bath ratio of 1:100, and then take out the silver-loaded alginate fiber enriched with adsorbed elemental silver particles, A kilogram of 80% (V / V) acetone aqueous solution was washed and dried to obtain fluffy and soft silver-loaded alginate fiber with a silver content of about 2000 mg / kg.

Example Embodiment

[0031] Example 3

[0032] According to the technical scheme of Example 1, an aqueous solution of nano silver was prepared.

[0033] Dip 1 kg of alginic acid fiber in a nano-silver aqueous solution with a concentration of 200ug / L, bath ratio 1:50, soak for 60 minutes, then take out the silver-loaded alginate fiber enriched with adsorbed elemental silver particles, and wash with 30 kg of chloroform After drying, a fluffy and soft silver-loaded alginate fiber with a silver content of about 10,000 mg / kg is obtained.

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Abstract

The invention relates to a medical disinfecting and sterilizing dressing raw material and a preparation method thereof, in particular to a silver-carried alginic acid fiber and a preparation method thereof. The preparation method comprises the following steps of: impregnating the alginic acid fiber in a water solution of nano silver with the concentration of 20-1000 ug/L, wherein the bath ratio is 1:10-200, and the impregnation time is 2-60 min; than, taking out the silver-carried alginic acid fiber absorbing elementary silver particles in an enrichment method, washing and drying the silver-carried alginic acid fiber through a water solution of organic solvent to obtain an alginic acid fiber with 0.01-4% of silver by weight and having good bulkiness and strong sterilization effect. The preparation method of the alginic acid fiber absorbing silver in an enrichment method provided by the invention has simple and feasible process, safe and nontoxic production process and practical application value.

Description

Technical field [0001] The invention relates to a raw material for a medical disinfection and sterilization dressing and a preparation method thereof, in particular to a silver-loaded alginate fiber and a preparation method thereof. Background technique [0002] Alginate fiber has been widely used in the medical industry as medical gauze, dressing, etc. due to its excellent medical material properties such as high moisture absorption, good oxygen permeability, good biocompatibility, and biodegradable absorption. Alginate fiber medical gauze and dressing have a strong hemostatic effect and can absorb the exudate of the wound in time, but the wound with a lot of exudate is damp and the chance of infection is relatively high. It has antibacterial effect by adding the alginate fiber. High-performance silver ions can make alginic acid medical dressings not only have high hygroscopicity, but also have good antibacterial properties. There are generally two types of silver-loaded algina...

Claims

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Application Information

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IPC IPC(8): D06M11/83
Inventor 张峰陈达永许丹晨楮加冕
Owner ZHANGJIAGANG NELLNANO TECH
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