Conductive cellulose fiber and preparation method thereof

A cellulose fiber and concentration technology, applied in the field of cellulose fibers, can solve the problems of insufficient fastness of the conductive layer of reaction uniformity, high equipment configuration and technical conditions, application field restrictions, etc., and achieves the guarantee of textile processing performance and long reaction time. , the effect of sufficient response

Active Publication Date: 2012-12-12
赛得利(盐城)纤维有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Research in recent years also uses intrinsically conductive polymers to prepare conductive fibers, such as CN200510015491, which uses intrinsically conductive polymers such as aniline, pyrrole, and thiophene to continuously coat the surface of the matrix fiber on a coating machine. The process is simple and easy to produce. The speed is fast, but there are certain deficiencies in the uniformity of reaction and the fastness of the conductive layer, and its application field is limited to a certain extent
There is also a sputtering method, which uses glow discharge between two electrodes to attach a layer of metal film on the surface of the fiber, which requires high equipment configuration and technical conditions, and is difficult to industrialize.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] (1) The cellulose fibers after spinning are cut and washed until the pH is 7, and the water is separated and removed.

[0037] (2) Pyrrole and dopant perfluorosuberic acid were dissolved in water to prepare an impregnation solution with pyrrole concentration of 0.015 mol / l and perfluorosuberic acid concentration of 0.022 mol / l, and the preparation process was filled with nitrogen protection.

[0038] (3) Put the treated cellulose fiber obtained in step (1) into the impregnating liquid, and impregnate under the condition of spin flow stirring, the bath ratio of the cellulose fiber and the impregnating liquid is 1:30, and the impregnating time is 0.5h .

[0039] (4) Add ferric chloride after impregnation, the concentration of ferric chloride is 0.03mol / l after adding, and oxidize at 25°C for 4h.

[0040] (5) Sodium dithionite and sodium sulfite solution are mixed, and the pH value is adjusted to 12 with sodium hydroxide solution. The concentration of sodium dithionite in...

Embodiment 2

[0044] (1) The cellulose fibers after spinning are cut and washed until the pH is 7.5, and the water is separated and removed.

[0045] (2) Dissolve pyrrole and dopant hydrochloric acid in water to prepare an impregnating solution with a concentration of pyrrole of 0.04 mol / l and a concentration of hydrochloric acid of 0.03 mol / l, and nitrogen protection is filled during the preparation process.

[0046] (3) Put the treated cellulose fiber obtained in step (1) into the impregnating liquid, and impregnate under the condition of spin flow stirring, the bath ratio of the cellulose fiber and the impregnating liquid is 1:50, and the impregnating time is 1 h.

[0047] (4) Add the oxidant ammonium persulfate solution after the impregnation is finished, the concentration of ammonium persulfate after adding is 0.09mol / l, and add 0.25wt% dodecylbenzenesulfonate of dry basis cellulose, oxidation reaction 2h, The reaction temperature was 18°C.

[0048] (5) Sodium dithionite and sodium su...

Embodiment 3

[0052] (1) The cellulose fibers after spinning are cut and washed until the pH is 7, and the water is separated and removed.

[0053] (2) Pyrrole and dopant p-toluenesulfonic acid were dissolved in water to prepare an impregnation solution with a concentration of pyrrole of 0.06 mol / l and a concentration of p-toluenesulfonic acid of 0.05 mol / l, and the preparation process was filled with nitrogen protection.

[0054] (3) Put the treated cellulose fiber obtained in step (1) into the impregnating liquid, and impregnate under the condition of spin flow stirring, the bath ratio of the cellulose fiber and the impregnating liquid is 1:70, and the impregnating time is 0.3h .

[0055] (4) Add the oxidant ammonium persulfate solution after the impregnation, the concentration of ammonium persulfate after adding is 0.12mol / l, the oxidation reaction is 1.5h, and the reaction temperature is 10°C.

[0056] (5) Sodium dithionite and sodium sulfite solution are mixed, adjust the pH value to ...

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PUM

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Abstract

The invention discloses a conductive cellulose fiber, which comprises 1 to 10 weight percent of polypyrrole and 80 to 89 weight percent of cellulose. The method for preparing the conductive cellulose fiber comprises the following steps of: performing cutting pretreatment on viscose subjected to spinning molding, and impregnating by using the prepared solution of pyrrole monomer and doping agents;adding an oxidant for an oxidation reaction, and adding mixed solution of sodium hydrosulfite, sodium sulfite and sodium hydroxide for a mixed reaction; and washing, desulfurizing, oiling and drying at the temperature of between 110 and 150 DEG C so as to prepare the finished conductive cellulose fiber. The prepared conductive fiber has higher conductivity under the condition of low content of conductive components, has excellent physical and mechanical properties and textile processing performance, and can be widely applied in the fields of conductive, antistatic and electromagnetic shielding materials.

Description

technical field [0001] The invention relates to the technical field of cellulose fibers, in particular to a conductive cellulose fiber and a preparation method thereof. Background technique [0002] Viscose fiber is one of the earliest chemical fibers developed and produced. Since its industrial production in the early 20th century, it has quickly become an important raw material for textiles due to its unique and excellent properties. Viscose fiber products have the excellent properties of natural fibers, good moisture absorption and air permeability, easy to dye, and the fabric is comfortable to wear, so it is more and more popular among people. Many contain viscose ingredients. Moreover, viscose fiber is made of natural cellulose, which has a wide range of sources and can be continuously regenerated. Today, when energy is increasingly scarce and resources are tight, it has significant raw material advantages. Therefore, the viscose fiber industry has developed rapidly a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D06M15/37C08G73/06D06M101/06
Inventor 刘海洋王可叶荣明赵望春姜再胜
Owner 赛得利(盐城)纤维有限公司
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