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Skin-core composite fiber with nano fiber surface and preparation method thereof

A technology of nanofibers and composite fibers, applied in the direction of cellulose/protein conjugated artificial filaments, conjugated synthetic polymer artificial filaments, etc., can solve the problems of small specific surface area and inability to achieve good sensing, and achieve The effect of large specific surface area, excellent adsorption characteristics, and good mechanical properties

Inactive Publication Date: 2017-06-27
WUHAN TEXTILE UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the most widely used skin-core structural fibers in the market are hollow fibers, superfine fibers, artificial wool and refractory fibers. Because the skin-core fibers have the characteristics of strong flexibility, excellent mechanical properties, and low production costs, researchers gradually Core fibers are used in the fields of electrode materials, sensors, and water treatment. However, the fiber surface of the traditional skin-core structure is smooth and flat, and has the disadvantage of small specific surface area, which cannot realize the functions of sensing, conductivity, and adsorption well.

Method used

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  • Skin-core composite fiber with nano fiber surface and preparation method thereof
  • Skin-core composite fiber with nano fiber surface and preparation method thereof
  • Skin-core composite fiber with nano fiber surface and preparation method thereof

Examples

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Effect test

Embodiment 1

[0028] A preparation method of a skin-core composite fiber on the surface of a nanofiber, comprising the following steps:

[0029] 1) Preparation of skin-core composite fibers:

[0030] Weighing cortex raw materials: according to the mass ratio, weigh polypropylene 100g and cellulose acetate butyrate 900g, mix evenly to obtain cortex raw materials;

[0031] Core raw material: weigh 1000g of polypropylene;

[0032] Put the cortex raw material and the core layer raw material into a two-component sheath-core composite spinning machine, melt spinning at 200°C, the cortex raw material is extruded by twin-screw in the two-component sheath-core composite spinning machine, and the core layer raw material is passed After the single-screw extrusion in the two-component sheath-core composite spinning machine, the sheath-core composite fiber (such as image 3 shown);

[0033] 2) Prepare the skin-core composite fiber on the surface of the nanofiber:

[0034] The sheath-core composite f...

Embodiment 2

[0037] A preparation method of a skin-core composite fiber on the surface of a nanofiber, comprising the following steps:

[0038] 1) Preparation of skin-core composite fibers:

[0039] Weighing cortex raw materials: weigh polyethylene 400g and cellulose acetate butyrate 600g according to mass ratio, and mix evenly to obtain cortex raw materials;

[0040] Core raw material: weigh polyethylene 4000g;

[0041] Put the cortex raw material and the core layer raw material into a two-component sheath-core composite spinning machine, melt spinning at 250°C, the cortex raw material is extruded by the twin-screw in the two-component sheath-core composite spinning machine, and the core layer raw material is passed through After the single-screw extrusion in the two-component sheath-core composite spinning machine, the sheath-core composite fiber (such as image 3 shown);

[0042] 2) Prepare the skin-core composite fiber on the surface of the nanofiber:

[0043] The sheath-core compo...

Embodiment 3

[0046] A preparation method of a skin-core composite fiber on the surface of a nanofiber, comprising the following steps:

[0047] 1) Preparation of skin-core composite fibers:

[0048] Weighing cortex raw materials: according to mass ratio, weigh 200g of polyester and 800g of cellulose acetate butyrate, mix evenly to obtain cortex raw materials;

[0049] Core material: weigh 250g of polyester;

[0050] Put the cortex raw material and the core layer raw material into a two-component sheath-core composite spinning machine, melt spinning at 300°C, the cortex raw material is extruded by twin-screws in the two-component sheath-core composite spinning machine, and the core layer raw material is passed through After the single-screw extrusion in the two-component sheath-core composite spinning machine, the sheath-core composite fiber (such as image 3 shown);

[0051] 2) Prepare the skin-core composite fiber on the surface of the nanofiber:

[0052] The sheath-core composite fib...

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Abstract

The invention relates to the field of textile materials, in particular to a skin-core composite fiber with a nano fiber surface and a preparation method thereof. The skin-core composite fiber with the nano fiber surface comprises a core layer and further comprises a nano fiber skin layer coating the outer surface of a core layer, wherein the nano fiber skin layer is formed by stacking nano cellosilk, and the average diameter of the nano cellosilk is 100-500 nm. The preparation method of the skin-core composite fiber with the nano fiber surface comprises the steps that 1, the skin-core composite fiber is prepared, a skin layer raw material and a core layer raw material are put in a double-component skin-core composite spinning machine for melt spinning, and the skin-core composite fiber consisting of the core layer and the skin layer is obtained; 2, the skin-core composite fiber is soaked in an acetone solution, cellulose acetate butyrate in the skin layer is extracted by utilizing acetone, and then the skin-core composite fiber with the nano fiber surface is obtained. The composite fiber has larger specific surface area and also has better mechanical property.

Description

technical field [0001] The invention relates to the field of textile materials, in particular to a skin-core composite fiber on the surface of nanofibers and a preparation method thereof. Background technique [0002] At present, fibers are widely used in textiles, packaging, medical and health, automobiles, electronic appliances, safety protection, environmental protection and other fields. With the progress of society and the improvement of people's living standards, the need for differentiation and functionalization of fibers is increasing. come higher. The production of skin-core composite fibers has promoted the development of fiber differentiation. Skin-core composite fibers are composed of two components, the skin layer and the core layer, which can make the fibers have some properties of the two materials of the skin layer and the core layer, giving the fibers more performance combination. At present, the most widely used skin-core structural fibers in the market a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D01F8/02D01F8/06D01F8/14D01F8/12
CPCD01F8/02D01F8/06D01F8/12D01F8/14
Inventor 王栋郭启浩赵青华李沐芳蒋海青梅涛吴永智
Owner WUHAN TEXTILE UNIV
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