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Method for preparing hemostatic sponge by use of sisal cellulose oxide

A technology of hemostatic sponge and sisal fiber, applied in the fields of medical science, bandages, absorbent pads, etc., can solve problems such as being contrary to human environmental protection and sustainable development, harmful to human body and environment, etc.

Active Publication Date: 2012-08-15
桂林华诺威基因药业股份有限公司
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Problems solved by technology

The preparation of such substances will produce substances harmful to the human body and the environment in terms of raw materials and processes, which is contrary to the concept of human environmental protection and sustainable development

Method used

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  • Method for preparing hemostatic sponge by use of sisal cellulose oxide
  • Method for preparing hemostatic sponge by use of sisal cellulose oxide
  • Method for preparing hemostatic sponge by use of sisal cellulose oxide

Examples

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Embodiment

[0024] (1) be that the sodium hydroxide solution of 150g / L carries out alkali boiling pretreatment to sisal fiber waste with concentration, to remove pectin and lignin wherein;

[0025] (2) washing the sisal fiber waste treated in step (1) to neutrality, drying and pulverizing to obtain sisal fiber waste powder;

[0026] (3) Add 24g of sodium periodate while stirring in a brown three-necked flask filled with 300ml of distilled water to form a solution, and adjust the pH to 3 with dilute sulfuric acid when its temperature is controlled at 24°C;

[0027] (4) Quickly add about 12 g of sisal fiber waste powder prepared in step (2) to the resultant of step (3), raise the temperature to 36° C., and stir at a constant temperature for 6 hours to react;

[0028] (5) Add about 9ml of analytically pure ethylene glycol solution after the completion of the above (4) reaction solution, and continue to stir for 1 hour to obtain a brown-yellow turbid solution;

[0029] (6) filter the brown-y...

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Abstract

The invention discloses a method for preparing hemostatic sponge by use of sisal cellulose oxide. The method comprises the following steps of: performing basic boiling of the sisal fiber waste by use of sodium hydroxide solution, washing to neutrality, and drying and crushing to obtain powder; adding the powder of the sisal fiber waste to the sodium periodate solution with adjusted pH, and stirring for reaction at constant temperature; after the reaction is over, adding ethylene glycol solution and continuing stirring; filtering, washing the filter cake with distilled water to neutrality, anddrying to obtain the sisal cellulose oxide; preparing the mixed solution of sodium hydroxide and thiourea; adding the prepared sisal cellulose oxide to the mixed solution for low-temperature dissolution; adding the pore-forming agent sodium sulfate, stirring uniformly and adding absorbent cotton; after low-temperature ageing, performing regeneration reaction in the coagulating bath formed by concentrated sulfuric acid and sodium sulfate; and washing clean with water to obtain the hemostatic sponge. According to the invention, the sisal cellulose oxide sponge is prepared by use of sisal fiber waste, and the obtained sisal cellulose oxide sponge has good antibacterial activity and can be used as hemostatic sponge.

Description

technical field [0001] The invention relates to a preparation method of an oxidized cellulose hemostatic sponge, in particular to a method for preparing an oxidized sisal cellulose hemostatic sponge by using sisal fiber waste such as hemp bran and hemp heads. Background technique [0002] Sisal is a leafy cellulose crop of the Agave family Agave, native to the Longatán Peninsula of Mexico. In China, it mainly grows in Leizhou Peninsula and parts of Guangxi. [0003] Wastes such as hemp bran and hemp heads produced during the processing of sisal fibers, if they are directly discharged or piled up, will not only lead to waste of resources, but also cause pollution to the environment. Sisal cellulose hemostatic sponge is a porous cellulose product prepared by a certain method based on sisal fiber waste such as hemp bran and hemp head, which is used to replace traditional sponges. It is easy to dry, durable, and has good wiping effect , strong water absorption, strong antibact...

Claims

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Application Information

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IPC IPC(8): C08L1/04C08L1/02C08B15/02C08J9/26A61L15/28A61L15/42
Inventor 海洪侯天福金文英杨峰程芳芳王慧
Owner 桂林华诺威基因药业股份有限公司
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