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Beta-cyclodextrin-based functional cellulose fiber and preparation method thereof

A cellulose fiber and cyclodextrin technology is applied in the field of functional materials and polymer materials, which can solve the problems of non-reactive groups and cellulose fibers without affinity, and achieve the effect of expanding the scope of use

Inactive Publication Date: 2019-03-19
钱景
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the shortcomings of β-cyclodextrin, which has no affinity for cellulose fibers and no reactive groups, it is generally necessary to use non-environmentally friendly crosslinking agents such as citric acid, ethylenediaminetetraacetic acid, epichlorohydrin, glutaraldehyde, etc. Grafting of β-cyclodextrin to the surface of cellulose fibers

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] (1) Put the cotton fabric in 1g / L sodium periodate solution with a bath ratio of 1:20, and oxidize it at 40°C for 120 minutes under constant stirring in the dark, and then place the oxidized cotton fabric in 0.1mol / L acrylic acid solution. Soak in the triol solution for 30 minutes to remove unreacted sodium periodate, and finally use deionized water to fully wash and dry naturally to obtain dialdehyde cotton fabrics. (2) Immerse β-cyclodextrin in 1g / L sodium periodate solution and react in the dark for 30min at a reaction temperature of 50°C with a bath ratio of 1:30 to obtain dialdehyde β-cyclodextrin. (3) Prepare triethylenetetramine into an aqueous solution with a mass fraction of 1%, slowly add dialdehyde β-cyclodextrin, the mass ratio of triethylenetetramine to dialdehyde β-cyclodextrin is 1:1, and the magnetic force The reaction was stirred for 24 hours to obtain aminated β-cyclodextrin. (4) Aminated β-cyclodextrin and β-cyclodextrin were prepared into aminated β...

Embodiment 2

[0016] (1) Put the ramie fabric in a 5g / L sodium periodate solution with a bath ratio of 1:20, and oxidize it continuously at 60°C for 60 minutes while stirring in the dark, and then place the oxidized ramie fabric in 0.1mol / L acrylic acid solution. Soak in triol solution for 30 minutes to remove unreacted sodium periodate, and finally use deionized water to fully wash and dry naturally to obtain dialdehyde ramie fabric. (2) Immerse β-cyclodextrin in 2g / L sodium periodate solution and react in the dark for 50min at a reaction temperature of 60°C with a bath ratio of 1:30 to obtain dialdehyde β-cyclodextrin. (3) Prepare PAMAM into an aqueous solution with a mass fraction of 5%, slowly add dialdehyde β-cyclodextrin, the mass ratio of PAMAM to dialdehyde β-cyclodextrin is 1:1, and react with magnetic stirring for 24 hours to obtain amino β-cyclodextrin. (4) Aminated β-cyclodextrin and β-cyclodextrin were prepared into aminated β-cyclodextrin solution and β-cyclodextrin solution ...

Embodiment 3

[0018] (1) Put the viscose fabric in 10g / L sodium periodate solution, the bath ratio is 1:20, keep stirring at 80°C and oxidize it in the dark for 10min, then put the oxidized viscose fabric in 0.1mol / L Soak in glycerol solution for 30 minutes to remove unreacted sodium periodate, and finally use deionized water to fully wash and dry naturally to obtain dialdehyde viscose fabric. (2) Immerse β-cyclodextrin in 5g / L sodium periodate solution and react in the dark for 60min at a reaction temperature of 50-80°C with a bath ratio of 1:30 to obtain dialdehyde β-cyclodextrin. (3) Prepare chitosan into an aqueous solution with a mass fraction of 10%, slowly add dialdehyde β-cyclodextrin, the mass ratio of chitosan to dialdehyde β-cyclodextrin is 1:1, and magnetically stir the reaction After 24 hours, aminated β-cyclodextrin was obtained. (4) Aminated β-cyclodextrin and β-cyclodextrin were prepared into aminated β-cyclodextrin solution and β-cyclodextrin solution with a mass fraction ...

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Abstract

The invention discloses a beta-cyclodextrin-based functional cellulose fiber. The preparation method of the beta-cyclodextrin-based functional cellulose fiber comprises impregnating dialdehyde cellulose fiber in amino-beta-cyclodextrin solution at 60 DEG C for 30-60 min, and then repeatedly washing the impregnated dialdehyde cellulose fiber in a deionized mode, then impregnating the dialdehyde cellulose fiber inside beta-cyclodextrin solution at 60 DEG C for 30-60 min, repeatedly washing the impregnated dialdehyde cellulose fiber in a deionized mode and accordingly completing a dialdehyde cellulose fiber assembling process in the amino-beta-cyclodextrin solution and the beta-cyclodextrin solution; repeating the dialdehyde cellulose fiber assembling process in the amino-beta-cyclodextrin solution and the beta-cyclodextrin solution to obtain the beta-cyclodextrin-based functional cellulose fiber. The preparation method of the beta-cyclodextrin-based functional cellulose fiber overcomes the deficiency that conventionally grafting beta-cyclodextrin onto the surface of cellulose fiber requires non-environment-friendly crosslinking agents such as citric acid, ethylene diamine tetraaceticacid, epoxy chloropropane and glutaraldehyde; by controlling the number of times of beta-cyclodextrin assembly, the preparation method of the beta-cyclodextrin-based functional cellulose fiber can freely adjust the number of beta-cyclodextrin on the surface of the cellulose fiber.

Description

technical field [0001] The invention relates to a functional cellulose fiber based on beta-cyclodextrin and a preparation method thereof, belonging to the field of functional materials and polymer materials. Background technique [0002] Cyclodextrin was first discovered in 1891 by Villiers from the starch digestive juice of Amylobacter amylobacter, and it has a history of more than 100 years. It is formed by the action of cyclodextrin glucose residue transferase on glucose polymers such as starch, glycogen, maltooligosaccharides, etc. Linked cyclic oligosaccharides. The cyclodextrins currently used in industry are mainly α-, β- and γ-cyclodextrin and their derivatives, corresponding to 6, 7 and 8 glucose units respectively, among which β-cyclodextrin is the most widely used. [0003] A large number of literatures have reported the application of β-cyclodextrin in the textile field. For example, Li Jing of Donghua University prepared derivatives of citric acid-β-cyclodext...

Claims

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Application Information

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IPC IPC(8): D06M15/03D06M11/30C08B37/16D06M101/06
CPCD06M15/03C08B37/0012D06M11/30D06M2101/06
Inventor 钱景
Owner 钱景
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