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Horizontal disc rotating centrifugal spinning method

A rotary centrifugal, horizontal disc technology, applied in textiles and papermaking, filament/thread forming, fiber processing, etc., can solve the problems of low equipment capital investment, low production efficiency, and low service life of bearings, and achieve narrow fiber diameters The effect of distribution range, low device cost and wide adjustable range

Inactive Publication Date: 2012-03-14
EAST CHINA NORMAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Electrospinning technology is currently used for laboratory research because of its low production efficiency and the inability to control its process.
Due to the limitation of equipment technology, centrifugal spinning technology cannot achieve low-cost and high-efficiency spinning
When using a multi-roller centrifugal spinning machine to form fibers, because the direction of the rotating shaft is perpendicular to the vertical direction, it is subjected to the action of gravity during the rotation process, causing a huge load on the rotating shaft, so there is a wide range of problems that the bearings are vulnerable
At present, there is still a lack of mature design theory and sufficient design basis for the design of multi-roller centrifugal fiber spinning machine in China. The service life of bearings is generally too low, which affects the actual production.
[0010] As far as the current various spinning technologies are concerned, it is difficult to find a spinning method with simple process, less capital investment in equipment, high production efficiency, wide range of adaptable materials, and adjustable silk quality

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] Using PF [phenolic resin] (PF2S1-5802) as raw material, it is melted and extruded by screw heating, the temperature control range is 120°C ~ 150°C, and the material is transported to the brushed aluminum plane under the constant temperature pipeline of 150°C Rotate the center of the disc, the disc is parallel to the horizontal plane, the rotating disc is heated at a constant temperature of 150°C, the rotating speed of the turntable is 1500 rpm, the cooling environment is room temperature (25°C), and the raw materials are centrifuged by the rotating disc to obtain PF fiber filaments , The fiber diameter is 10-20 microns.

Embodiment 2

[0041] Using PC [polycarbonate] (PC6555) as the raw material, it is heated and melted and extruded by the screw, and the temperature control range is 180°C to 250°C. Under the constant temperature pipeline of 250°C, the material is conveyed to the surface-drawn aluminum plane rotating In the center of the disk, the disk is parallel to the horizontal plane. The rotating disk is heated at a constant temperature of 260°C, the rotating speed of the turntable is 1800 rpm, and the cooling environment is hot air at 100°C. After the raw material is centrifuged by the rotating disk, PC fiber filaments are obtained, and the fiber diameter 15 to 30 microns.

Embodiment 3

[0043] Using PS [polystyrene] (HIPS-622P) as the raw material, it is heated and melted and extruded by the screw, and the temperature control range is 160 ° C ~ 240 ° C. Under the constant temperature pipeline of 240 ° C, the material is transported to the brushed aluminum surface. The center of the flat rotating disk, the disk is parallel to the horizontal plane, the heating of the rotating disk is at a constant temperature of 230°C, the rotation speed of the turntable is 1500 rpm, the cooling environment is room temperature (25°C), and the raw material is centrifuged by the rotating disk to obtain PS fiber filaments , The fiber diameter is 20-35 microns.

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Abstract

The invention provides a horizontal disc rotating centrifugal spinning method. The method is characterized in that spinning raw materials are spread on the surface of a rotary disc under the centrifugal action of the rotary disc in the molten state and then the melt films become thin gradually, thus causing film rupture, and the melt or solution is drawn into filaments through adhesive force and centrifugal action and the filaments are finally condensed to form fibers. The method is suitable to manufacture various inorganic fibers and polymer fibers, is suitable for wide range of spinning raw materials, has strong controllability and high production efficiency and can be used for manufacturing fibers with different physical properties or apparent sizes by only changing the working parameters of the reaction process, without changing the equipment.

Description

technical field [0001] The invention relates to a fiber forming method in the field of chemical industry, in particular to a horizontal disc rotary centrifugal spinning method for preparing fibers by using polymer resin and inorganic substances as raw materials. Background technique [0002] The current fiber forming methods used in the field of chemical manufacturing are mainly the following: [0003] Melt spinning is to heat the polymer to melt and support the melt, inject it into the spinneret through the spinning pump, and spray it into a fine stream through the spinneret pores, and then condense to form fibers. The production process of this method is relatively simple and is widely used in synthetic fiber production. [0004] Dry spinning, that is, the polymer is first formulated into a spinning solution, fed with a spinning pump, a thin stream of liquid is sprayed out through the spinneret, and enters the hot air sleeve. The solvent in the thin stream evaporates when...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D01D5/42
Inventor 张以群谢美然赵昭宋春梅
Owner EAST CHINA NORMAL UNIV
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