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Spinning method

A technology of spinning and thread, which is applied in rayon manufacturing, filament/thread forming, textile and paper making, etc. It can solve the problems of complex operation, limited thread fineness, poor continuity, etc., and achieve simple equipment, improved product performance, and production low cost effect

Active Publication Date: 2005-10-19
TSINGHUA UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0012] In order to solve the problems of complicated operation of the spinning method in the prior art, limited fineness and poor continuity of the obtained silk, the purpose of the present invention is to provide a spinning method with good continuity and easy control of the fineness of the obtained silk

Method used

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  • Spinning method

Examples

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Embodiment 1

[0032] Add 6 drops (about 0.2 ml) of polyurethane glue (101 glue) to a beaker filled with 20 ml of ethyl acetate, and then add 2 mg of carbon nanotubes to form a mixed solution. The beaker containing the mixture was ultrasonically dispersed in a KQ-500B ultrasonic cleaner for 5 minutes. Then immediately extract the mixed solution with a syringe for injection, and drop 6-10 drops (about 0.2-0.3 ml) of the mixed solution into deionized water packed in a stainless steel plate, and the water temperature is about 30 degrees Celsius. After about 20 to 30 seconds, use a medical needle dipped in the liquid surface to pull out the silk, and wrap it around the plastic shaft driven by the stepping motor. The stepping motor rotates to drive the drawing, about 12cm / sec. The diameter of the filaments is about 1 micron.

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Abstract

The present invention relates to spinning method of polymer and its composite material, and aims at simplifying spinning process and raising the titer and continuity of spun fiber. The spinning method includes the following steps: mixing polymer with diluting and dispersing solvent to form mixed liquid; provides a kind of liquid with polar molecule and insoluble to the mixed liquid; adding the mixed liquid into the liquid to form film on the surface of the liquid; and providing one upwards drawing device with tip to contact the film and upwards drawing the device to draw fiber from the mixed liquid.

Description

【Technical field】 [0001] The invention relates to a spinning method of polymer and its composite material. 【Background technique】 [0002] After organic polymer materials become filaments through spinning process, they have important applications in textile engineering, biomedicine, and special materials. At present, there are mainly four types of spinning processes. [0003] 1) Dry spinning. The high molecular polymer is dissolved with a volatile solvent to make a viscous liquid suitable for spinning. The spinning dope is extruded from the spinneret to form a filament stream, and the solvent in the filament stream is rapidly volatilized and solidified by the hot air sleeve, and then drawn into filaments. [0004] 2) wet spinning. The fiber-forming polymer is dissolved in a solvent to make a spinning solution, which is sprayed out from the spinneret to form a mucus filament flow, which enters the coagulation liquid. Due to the solvent diffusion in the mucus filament flow...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C67/00D01D5/00
CPCB82Y30/00D01F6/70D01D5/00D01F1/10
Inventor 刘长洪黄华范守善
Owner TSINGHUA UNIV
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