Melt spinning device

A technology of melt spinning and material holding device, which is applied in the directions of melt spinning, rayon manufacturing, textile and paper making, etc., can solve problems such as disadvantages, and achieve the effects of easy operation, simple equipment structure and high spinning efficiency.

Inactive Publication Date: 2020-07-10
蒋秋菊
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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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Examples

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, the α-Al 2 o 3 Place the nanoparticles in an aluminum sulfate solution with a concentration of 0.5mol / L to obtain a dispersion, and adjust the pH of the solution to 6-7; add magnetic material particles (Fe particles, with an average particle size of 2 microns) to the dispersion, and after adding, 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 α-Al 2 o 3 coated magnetic material particles, wherein, α-Al 2 o 3 The ratio of nanoparticles to inorganic aluminum salt solution is 1g:500mL;

[0050] Step two, polyphenylene sulfide powder, step one obtained α-Al 2 o 3 After mixing the coated magnetic material p...

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, the α-Al 2 o 3 Place the nanoparticles in an aluminum sulfate solution with a concentration of 0.5mol / L to obtain a dispersion, and adjust the pH of the solution to 6-7; add magnetic material particles (Fe particles, with an average particle size of 2 microns) to the dispersion, and after adding, 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 α-Al 2 o 3 coated magnetic material particles, wherein, α-Al 2 o 3 The ratio of nanoparticles to inorganic aluminum salt solution is 1g:500mL;

[0055] Step two, polyphenylene sulfide powder, step one obtained α-Al 2 o 3 The coated magnetic material particles are ...

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 α-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 α-Al 2 o 3 coated magnetic material particles, wherein, α-Al 2 o 3 The ratio of nanoparticles to inorganic aluminum salt solution is 1g:700mL;

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

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Abstract

The invention relates to a melt spinning device, and belongs to the field of spinning. The melt spinning device comprises a funnel-shaped material containing device, wherein the material containing device consists of a material containing part and a fiber forming part; a magnetic field generating device capable of generating a magnetic field direction parallel to the ground is arranged outside thematerial containing device; and the magnetic field generated by the magnetic field generating device acts on the whole fiber forming part and the part, close to the joint of the material containing part and the fiber forming part, of the material containing part. The melt spinning device is provided with the magnetic field generating device, and the magnetic field generating device is a device capable of generating the magnetic field direction parallel to the ground. When a melt raw material containing magnetic material particles flows through the magnetic field generating device, the melt raw material is arranged according to the direction of a magnetic line of force, the magnetic particles are arranged according to the same magnetic domain orientation to a certain degree, and fibers formed subsequently have consistency of magnetic orientation. The device is simple in structure, easy to operate and high in spinning efficiency.

Description

technical field [0001] The invention relates to a melt spinning device, which 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 incorpora...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D01D5/08D01D13/00D01D13/02D01D4/00D01F1/10
CPCD01D4/00D01D5/08D01D13/00D01D13/02D01F1/10
Inventor 不公告发明人
Owner 蒋秋菊
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