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Preparation method of flame-retardant and antibacterial precursor fibers

A technology of antibacterial fiber and precursor, applied in the field of textile fiber manufacturing, to achieve good flame retardant and antibacterial functions, simple preparation method and low difficulty

Active Publication Date: 2017-06-13
NANTONG HONGXIN FIBER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, since polyacrylonitrile fiber is a high-molecular polymer fiber and is a combustible substance, its limiting oxygen index is 17-18, which is the lowest among synthetic fibers, and its use is limited to a certain extent. Therefore, the flame-retardant modification of acrylic fiber It is of great significance; at the same time, with the improvement of consumption level, consumers' demand for fiber functionalization is also increasing, especially the demand for functions such as fiber antibacterial performance, so the significance of antibacterial modification is also quite significant

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] A preparation method of flame-retardant and antibacterial fiber precursors, comprising the following steps:

[0027] a) Weigh raw materials according to the following parts by weight: 90 parts of polyacrylonitrile, 1.5 parts of flame retardant, 0.25 parts of antibacterial agent, 350 parts of organic solvent; the flame retardant is ammonium bicarbonate 8wt%, sodium bicarbonate 10wt%, bicarbonate Potassium 5wt%, diatomite 77wt%; antibacterial agent is aluminum phosphate 20wt%, calcium phosphate 10wt%, aluminum tripolyphosphate 70wt%; organic solvent is dimethyl sulfoxide;

[0028] Diatomaceous earth was pre-treated as follows before addition: Diatomaceous earth was first crushed to 1 micron, then sonicated in absolute ethanol solution for 10 seconds, followed by sonication in saturated sodium bicarbonate solution for 1 minute, and finally washed with water for 4 times; control the temperature at 50°C during ultrasonic treatment;

[0029] b) Mix and dissolve polyacrylonit...

Embodiment 2

[0034] A preparation method of flame-retardant and antibacterial fiber precursors, comprising the following steps:

[0035] a) Weigh raw materials according to the following parts by weight: 90 parts of polyacrylonitrile, 2 parts of flame retardant, 0.3 parts of antibacterial agent, 400 parts of organic solvent; the flame retardant is ammonium bicarbonate 9wt%, sodium bicarbonate 11wt%, bicarbonate Potassium 6wt%, diatomaceous earth 74wt%; antibacterial agent is aluminum phosphate 25wt%, calcium phosphate 15wt%, aluminum tripolyphosphate 60wt%; organic solvent is N,N-dimethylformamide;

[0036] Diatomaceous earth was pre-treated as follows before addition: Diatomaceous earth was first pulverized to 1.5 μm, then sonicated in absolute ethanol solution for 200 s, followed by sonication in saturated sodium bicarbonate solution for 20 min, and finally washed with water for 5 times; control the temperature at 60°C during ultrasonic treatment;

[0037] b) Mix and dissolve polyacrylo...

Embodiment 3

[0042] A preparation method of flame-retardant and antibacterial fiber precursors, comprising the following steps:

[0043] a) Weigh raw materials according to the following parts by weight: 90 parts of polyacrylonitrile, 3 parts of flame retardant, 0.4 parts of antibacterial agent, 450 parts of organic solvent; the flame retardant is 10wt% ammonium bicarbonate, 12wt% sodium bicarbonate, and Potassium 8wt%, diatomite 70wt%; antibacterial agent is aluminum phosphate 28wt%, calcium phosphate 18wt%, aluminum tripolyphosphate 54wt%; organic solvent is dimethylsulfoxide, N,N-dimethylformamide, N, A mixture of N-dimethylacetamide with a volume ratio of 1:1:1;

[0044]Diatomaceous earth was pre-treated as follows before addition: Diatomaceous earth was first pulverized to 1.5 μm, then sonicated in absolute ethanol solution for 400 s, followed by sonication in saturated sodium bicarbonate solution for 40 min, and finally washed with water for 5 times; control the temperature at 70°C ...

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Abstract

The invention relates to the technical field of textile fibers and discloses a preparation method of flame-retardant and antibacterial precursor fibers. The method comprises steps as follows: material preparation, polypropylene dissolution, addition of an antibacterial agent, addition of a flame retardant, spinning and the like, wherein the antibacterial agent is composition of aluminum phosphate, calcium phosphate and aluminum triphosphate; the flame retardant is composition of ammonium bicarbonate, sodium bicarbonate, potassium bicarbonate and diatomaceous earth. The preparation method is simple and can be implemented by slight modification on existing production equipment, and the updating and modification difficulty is lower. The prepared precursor fibers are endowed with good flame retardance and antibacterial function on the basis that advantages of original acrylic fiber are kept.

Description

technical field [0001] The invention relates to the technical field of textile fiber manufacturing, in particular to a method for preparing flame-retardant and antibacterial fiber precursors. Background technique [0002] Polyacrylonitrile fiber, also known as acrylic fiber, is a synthetic fiber made of polyacrylonitrile or acrylonitrile copolymer with a mass percentage greater than 85% by dry spinning or wet spinning. It is as elastic as wool, but its warmth retention is higher than that of wool. At the same time, it has the advantages of bulkiness, easy dyeing, softness, bright color, and is not afraid of insects. It can be blended with natural fibers or purely spun according to different application requirements. The obtained textiles can be widely used. Used in decoration, clothing and other fields. [0003] However, since polyacrylonitrile fiber is a high-molecular polymer fiber and is a combustible substance, its limiting oxygen index is 17-18, which is the lowest amo...

Claims

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Application Information

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IPC IPC(8): D01F6/54D01F1/10D01F1/07
CPCD01F1/07D01F1/103D01F6/54
Inventor 许云峰
Owner NANTONG HONGXIN FIBER
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