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Melt spinning technology

A melt spinning and crafting technology, applied in the field of spinning, can solve disadvantages and other problems, and achieve the effects of easy operation, high spinning efficiency and simple equipment structure

Active Publication Date: 2018-05-29
无锡佳成纤维有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, after the magnetic material is mixed into the slurry, the magnetic material in the stirred and mixed slurry shows anisotropic characteristics, which is not conducive to the use in some occasions that require magnetic materials to show obvious orientation.

Method used

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0048] A melt-spinning process is a melt-spinning process, and the melt is obtained as follows:

[0049] Step 1, at 50°C, a-Al 2 o 3 The nanoparticles are placed in the aluminum sulfate solution with a concentration of 0.5mol / L to obtain a dispersion, and the pH of the solution is adjusted to 6~7; add magnetic material particles (Fe particles, average particle size 2 microns) to the dispersion, and after the addition is completed, Add ammonium bicarbonate solution with a concentration of 1.5mol / L dropwise into it, the volume of the aluminum salt solution and the ammonium bicarbonate solution is 1:1; then the resulting mixture is spray-dried, and the dried particles are roasted, The calcination temperature is 450°C to obtain a-Al 2 o 3 coated magnetic material particles, wherein, a-Al 2 o 3 The ratio of nanoparticles to inorganic aluminum salt solution is 1g:500mL;

[0050] Step 2, polyphenylene sulfide powder, step 1 obtained a-Al 2 o 3 The coated magnetic material par...

Embodiment 2

[0053] A melt-spinning process is a melt-spinning process, and the melt is obtained as follows:

[0054] Step 1, at 50°C, a-Al 2 o 3 The nanoparticles are placed in the aluminum sulfate solution with a concentration of 0.5mol / L to obtain a dispersion, and the pH of the solution is adjusted to 6~7; add magnetic material particles (Fe particles, average particle size 2 microns) to the dispersion, and after the addition is completed, Add ammonium bicarbonate solution with a concentration of 1.5mol / L dropwise into it, the volume of the aluminum salt solution and the ammonium bicarbonate solution is 1:1; then the resulting mixture is spray-dried, and the dried particles are roasted, The calcination temperature is 450°C to obtain a-Al 2 o 3 coated magnetic material particles, wherein, a-Al 2 o 3 The ratio of nanoparticles to inorganic aluminum salt solution is 1g:500mL;

[0055] Step 2, polyphenylene sulfide powder, step 1 obtained a-Al 2 o 3 The coated magnetic material par...

Embodiment 3

[0058] A melt-spinning process is a melt-spinning process, and the melt is obtained as follows:

[0059] Step 1, at 80°C, the a-Al 2 o 3 The nanoparticles are placed in the inorganic aluminum salt solution with a concentration of 1mol / L to obtain a dispersion, and the pH of the solution is adjusted to 6~7; the magnetic material particles are added to the dispersion, and the concentration of 2mol / L is added dropwise to the dispersion. L of ammonium bicarbonate solution, the volume of the aluminum salt solution and the ammonium bicarbonate solution is 1:1; then the resulting mixture is spray-dried, and the dried particles are roasted at a roasting temperature of 500°C to obtain a-Al 2 o 3 coated magnetic material particles, wherein, a-Al 2 o 3 The ratio of nanoparticles to inorganic aluminum salt solution is 1g:700mL;

[0060] Step 2, the a-Al obtained in step 1 2 o 3 The coated magnetic material particles are mixed with other fiber raw materials and obtained by melting. ...

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Abstract

The invention relates to a melt spinning technology and belongs to the field of spinning. According to the melt spinning technology, magnetic force parallel to the direction of the ground is applied to a melt in a wire drawing process, and the melt is prepared with a method comprising steps as follows: step 1, a-Al2O3 coated magnetic material particles are prepared; step 2, the a-Al2O3 coated magnetic material particles obtained in step 1 are mixed with other fiber raw materials, and a mixture is molten. With adoption of the technology and a device, magnetic fibers with consistent magnetic orientation can be obtained.

Description

technical field [0001] The invention relates to a melt spinning process and belongs to the field of spinning. Background technique [0002] Magnetic fibers are chemical fibers that contain magnetic substances and are magnetic. Currently, fiber preparation methods mainly include melt spinning and solution spinning. Fiber-forming polymers that generally do not decompose significantly in the molten state are melt-spun, such as polyester fibers, polyamide fibers, and the like. The melt spinning process is simple, the spinning speed is high, and it is the most widely used spinning method. At present, there are many methods for preparing magnetic fibers by melt spinning, such as wrapping or attaching a layer of magnetic material on the existing fibers, so that the obtained fibers can obtain certain magnetic properties. It is also possible to mix the magnetic material into the slurry for preparing the fiber when the fiber is prepared, so that the magnetic material is incorporate...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D01F6/96D01F9/08D01F1/10D01D5/08D01D13/02
CPCD01D5/08D01D13/02D01F1/10D01F6/96D01F9/08
Inventor 蒋秋菊
Owner 无锡佳成纤维有限公司
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