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Preparation method of chitosan copper fibers

A technology of chitosan and copper fiber, which is applied in the fields of fiber chemical characteristics, rayon manufacturing, and fire-resistant and flame-retardant filament manufacturing. The effect of antimicrobial properties

Inactive Publication Date: 2016-08-24
TIANJIN ZHONGSHENG BIO ENG CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although silver ions can kill or inhibit bacteria, silver, as a heavy metal element, is still potentially toxic to the human body, difficult to remove, and has a great impact on the environment

Method used

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Examples

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Embodiment Construction

[0007] The preferred embodiments of the present invention are described in detail below, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, so as to define the protection scope of the present invention more clearly.

[0008] In a preferred embodiment of the present invention, the deacetylation degree of described chitosan is 87%, and viscosity is 800mPa.s; In described spinning solution, the concentration of chitosan is 2.5%, and the concentration of copper acetate is 0.1%, the concentration of urea is 0.5%, the concentration of isopropanol is 0.5%, the concentration of glacial acetic acid is 3.5%; the concentration of sodium hydroxide in the described coagulation bath is 3%.

[0009] In a preferred embodiment of the present invention, the degree of deacetylation of chitosan is 93.5%, and the viscosity is 1300mPa.s; in the spinning solution, the concentration of chitosan is 3.5%, and the concentration of coppe...

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Abstract

The invention discloses a preparation method of chitosan copper fibers. The preparation method is characterized in that certain weight of copper salt is added into the raw material to allow chitosan and metal copper ions to perform coordination complexation so as to generate the complex of the chitosan and the copper ions, and wet spinning is used to obtain the chitosan copper fibers. The prepared chitosan copper fibers are high in specific surface area, high in antibacterial performance, excellent in antistatic and flame-retardant performance and applicable to fields such as textile and garments, disposable hygienic materials and air filter materials. The preparation method is simple in process, high in process condition controllability, and easy in material structure and performance control.

Description

technical field [0001] The invention relates to the technical field of fiber material preparation and application, in particular to a preparation method of chitosan copper fiber. Background technique [0002] Chitosan fiber is the only positively charged fiber in nature so far. It has the characteristics of broad-spectrum antibacterial, high antibacterial efficiency and non-toxicity. The antibacterial performance is very strong under the interference of the environment (under neutral or alkaline environmental conditions), which reduces the antibacterial effect and durability of its products. [0003] Chitosan molecules contain active groups such as amino groups and hydroxyl groups. These active groups are ideal molecular structure modification sites, and the antibacterial activity of chitosan can be improved after modification. Chinese patent CN1308509C discloses a silver-containing chitosan fiber with antibacterial effect and its preparation method. In this method, silver ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D01F9/00D01F1/07D01F1/09D01F1/10
Inventor 周新民苏雪寒邵欢迎
Owner TIANJIN ZHONGSHENG BIO ENG CO LTD
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