Fibers containing polyelectrolytes and methods of making the same

A technology of polyelectrolyte and fiber, which is applied in the field of fiber containing polyelectrolyte and its preparation, which can solve problems such as inability to form, heterogeneity, instability, etc., and achieve the effects of low cost, avoiding loss, and stable structure

Active Publication Date: 2021-03-02
TIANE CHEM FIBER GROUP CORP BAODING +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Chitosan / alginic acid sol is heterogeneous and unstable, and cannot be formed by wet spinning method

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032]The preparation method of the fiber containing polyelectrolyte, concrete steps are as follows:

[0033] (1) prepare polyelectrolyte sol;

[0034] After mixing the tertiary amine alkyl starch ether solution and the carboxymethyl inulin solution at a volume ratio of 1:1, stir in a mixer at a speed of 100 rpm for 30 minutes to obtain a polyelectrolyte sol, wherein the tertiary amine alkyl The ratio of the number of positive charges carried by starch ether molecules to the number of negative charges carried by carboxymethyl inulin molecules is 0.5:1, and the concentration of tertiary amine alkyl starch ether solution and carboxymethyl inulin solution is 3.6g / L , the dispersed phase particles in the prepared polyelectrolyte sol are charged, the dispersed phase particles are mainly polyelectrolyte conjugates, and the polyelectrolyte conjugates are mainly formed by combining tertiary amine alkyl starch ether and carboxymethyl inulin through ionic bonds;

[0035] (2) The mixed ...

Embodiment 2

[0039] The preparation method of the fiber containing polyelectrolyte, concrete steps are as follows:

[0040] (1) prepare polyelectrolyte sol;

[0041] After mixing the quaternary ammonium alkyl starch ether solution and the carboxymethyl starch solution at a volume ratio of 1:1.1, stir in a mixer at a speed of 120 rpm for 30 minutes to obtain a polyelectrolyte sol, wherein the quaternary ammonium alkyl starch The ratio of the number of positive charges carried by ether molecules to the number of negative charges carried by carboxymethyl starch molecules is 0.7:1, and the concentration of quaternary ammonium alkyl starch ether solution and carboxymethyl starch solution is 7.5g / L. The dispersed phase particles in the polyelectrolyte sol are charged, and the dispersed phase particles are mainly polyelectrolyte conjugates, and the polyelectrolyte conjugates are mainly formed by combining quaternary ammonium alkyl starch ether and carboxymethyl starch through ionic bonds;

[004...

Embodiment 3

[0046] The preparation method of the fiber containing polyelectrolyte, concrete steps are as follows:

[0047] (1) prepare polyelectrolyte sol;

[0048] After mixing the solution of tertiary amine alkyl starch ether and quaternary ammonium alkyl starch ether mixture (mass ratio of 1:1) and carboxymethyl cellulose solution in a volume ratio of 0.9:1, the speed is 160 rpm in the mixer The polyelectrolyte sol was made under stirring for 30 minutes, wherein the ratio of the number of positive charges carried by the mixture molecules of tertiary amine alkyl starch ether and quaternary ammonium alkyl starch ether to the number of negative charges carried by carboxymethylcellulose molecules was 0.64:1; the concentration of tertiary amine alkyl starch ether and quaternary ammonium alkyl starch ether mixture solution and carboxymethyl cellulose solution is 1.5g / L, and the dispersed phase particle in the polyelectrolyte sol of making is charged, dispersed phase particle It is mainly a ...

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Abstract

The invention relates to a fiber containing polyelectrolyte and a preparation method thereof. The preparation method is as follows: spinning the mixed solution of polyelectrolyte sol and spinning solution to obtain the fiber containing polyelectrolyte; the dispersed phase particles in the polyelectrolyte sol mainly It is a polyelectrolyte conjugate. The prepared fiber is mainly composed of a fiber matrix and a polyelectrolyte conjugate distributed in the inner layer and / or outer layer of the fiber matrix. The polyelectrolyte conjugate is mainly composed of soluble cationic polyelectrolyte and soluble anionic polyelectrolyte. Bonding is formed, and the polyelectrolyte conjugate is mainly combined with the fiber matrix through hydrogen bonding. A fiber containing polyelectrolyte and its preparation method according to the present invention can apply cationic polyelectrolyte solution and anionic polyelectrolyte solution to fiber forming, and the prepared fiber containing polyelectrolyte has stable structure, good mechanical properties, and excellent promotional value.

Description

technical field [0001] The invention belongs to the field of functional fibers, and relates to a polyelectrolyte-containing fiber and a preparation method thereof. Background technique [0002] Fiber production methods include melt spinning and wet spinning. The wet spinning method is mainly used for polymers whose decomposition temperature is lower than the melting temperature, that is, polymers that cannot be melt-spun. Both regenerated cellulose fibers and polyacrylonitrile fibers are produced by wet spinning. In addition, wet-spun fibers also include wet-spun fibers composed of a wide variety of bicomponent polymers with different properties. For example, the patent application number 200410018449.7 is the chitosan / hydroxymethyl cellulose fiber prepared by the solution blending method. [0003] Polyelectrolytes refer to polymers with ionizable groups, also known as polymer polyelectrolytes. Polyelectrolytes include synthetic polyelectrolytes and natural polyelectrolyt...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D01F6/54D01F1/10D01F2/02D01F2/04
CPCD01F1/10D01F2/02D01F2/04D01F6/54
Inventor 姚勇波王东兴王乐军范磊刘怡宁陈思
Owner TIANE CHEM FIBER GROUP CORP BAODING
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