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trimethyl chitosan fiber

A technology for trimethyl chitosan and fiber, applied in the field of trimethyl chitosan fiber, can solve the problems of inconvenient preparation process and low acetylation degree, and achieve the effects of easy preparation and good water solubility

Inactive Publication Date: 2011-12-14
WUJIANG RUIFENG WEAVING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Inconvenient during preparation
[0004] Trimethyl chitosan is a derivative of chitosan, besides good biodegradability, it also has good water solubility, but the degree of acetylation is lower than that of chitosan

Method used

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  • trimethyl chitosan fiber

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Experimental program
Comparison scheme
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Embodiment 1

[0018] A trimethyl chitosan fiber contains the following components: 5 g of trimethyl chitosan, 1.0 g of urea, 1.0 g of isopropanol, 5 g of dichloroacetic acid, 1.0 g of glycerin, 5 g of zinc acetate, and 84 g of water.

[0019] refer to figure 1 As shown, weigh trimethyl chitosan and other components into the distilled water in the dissolution kettle 1 and stir to make it fully dissolved into a clear and transparent light yellow spinning stock solution. Under pressure, the stock solution passes through the plate and frame filter 2 , enter the slow release barrel 4 after removing impurities, and degas the stock solution in the stock solution barrel under vacuum conditions. The stream passes through a section of air layer 8 before entering the coagulation bath 9 to generate solid as-spun fibers, then stretches through the stretching roller 10, washes in the stretching bath 11 and water bath 12, and obtains microcrystals after winding and drying by the winding roller 13. Cel...

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Abstract

The invention relates to a trimethyl chitosan fiber, which is characterized in that the components contained in the stock solution and the mass ratio ranges of each component are as follows: trimethyl chitosan 2wt%-5wt%, urea 0.2wt%-1.0 wt%, isopropanol 0.1wt%-1.5wt%, dichloroacetic acid 1wt%-5wt%, glycerin 0.1wt%-1.0wt%, zinc acetate 1wt%-5wt%, and water are prepared by wet and dry method . The fiber is prepared by using trimethyl chitosan with good water solubility, which is easy to prepare and has high tensile strength.

Description

technical field [0001] The invention relates to a trimethyl chitosan fiber and belongs to the technical field of textiles. Background technique [0002] Chitin is a natural biopolymer extracted from the shells of shrimp and crab insects and the cell walls of fungi and algae. Chitosan is the product of deacetylation of chitin after treatment. Chitin fiber and chitosan fiber are natural polymer fibers spun from chitin and chitosan solution through high-tech processing. It has the characteristics of good biodegradability and can be spun into two categories: filament or short fiber. The filament is used for twisting medical sutures, and the short fiber is used to make medical accessories in the form of non-woven fabrics. [0003] Chitosan, the chemical formula is: (C 6 h 11 NO 4 ) n A large number of hydroxyl groups and amino groups are connected to the molecular chain, and its chemical properties are active. It cannot be dissolved in water and alkaline solutions, but c...

Claims

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Application Information

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IPC IPC(8): D01F9/00D01F1/10
Inventor 周桂荣
Owner WUJIANG RUIFENG WEAVING
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