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Device and method for manufacturing airflow melting electrostatic spinning nano-fiber non-woven fabric

A nanofiber, non-woven fabric technology, applied in the non-woven fabric field in the textile field, can solve the problems of not making much progress in melt electrospinning, failing to develop industrialized production equipment, etc., achieving easy industrialization promotion, melting The uniformity of body charge and the effect of improving production

Inactive Publication Date: 2010-05-19
TIANJIN POLYTECHNIC UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In contrast, melt electrospinning has not made much progress in more than 20 years, especially in its equipment, and it has not been able to develop suitable industrial production equipment so far.

Method used

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  • Device and method for manufacturing airflow melting electrostatic spinning nano-fiber non-woven fabric
  • Device and method for manufacturing airflow melting electrostatic spinning nano-fiber non-woven fabric
  • Device and method for manufacturing airflow melting electrostatic spinning nano-fiber non-woven fabric

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Embodiment

[0048] Such as figure 1 , 2 A manufacturing equipment for air-melting electrospinning nanofiber nonwovens shown, including a storage box 1, a screw extruder 2, a filter 3, a metering pump 4, a material path 5, a melt-blown die head 6, and an air duct 7. High-voltage electrostatic generator 8, air compressor 9, heating device 10, receiving roller or net curtain 11. When working, mix the dried polymer resin with the metal salt additive accounting for 0.1-1% by mass in a high-speed mixer, and then put it into the storage box 1, and the polymer resin is melted by the screw extruder 2 Extrude, then pass through the filter 3, the metering pump 4, and the material path 5 to enter the melt-blown die head 6; turn on the high-voltage electrostatic generator 8 and the air compressor, set a certain voltage and wind pressure, and the polymer melt will be in the high-voltage electrostatic Under the action of the field, it is ejected at high speed from the melt blown die head 6, and at the...

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Abstract

The invention relates to a device and a method for manufacturing an airflow melting electrostatic spinning nano-fiber non-woven fabric. The device for manufacturing the airflow melting electrostatic spinning nano-fiber non-woven fabric comprises a stock hoper, a screw extruder, a filter, a metering pump, a material path, a melt-blown die head, a hot-air pipeline, an air compressor, a heating device, a high voltage electrostatic generator and a receiving device. The material path is made of high thermal conductivity insulating ceramics. The method for manufacturing the nano-fiber non-woven fabric adopts the device disclosed by the invention and comprises the following processing steps: (1) preparing a polymer melt; (2) jetting nano-fibers by using airflow static electricity; and (3) moulding the non-woven fabric. The method for manufacturing the nano-fiber non-woven fabric of the invention adopts airflow-melting electrostatic spinning technology, avoids a problem of pollution of electrostatic spinning solvent, and is novel environment-friendly non-woven fabric manufacturing technology. In the manufacturing method, high voltage electrostatic is directly acted on the melt-blown die head; the melt has high and uniform charge; and simultaneously by utilizing drafting of the airflow, the prepared nano-fiber has the advantages of thin diameter and narrow distribution. The device can meet production requirements by improving the conventional melt-blown manufacturing device, and has low implementation cost and easy industrialization promotion.

Description

technical field [0001] The invention relates to nonwoven fabric technology in the field of textiles, in particular to a manufacturing equipment and method for airflow melting electrospinning nanofiber nonwoven fabric. Background of the invention [0002] With the development of nanotechnology, electrospinning technology, as an effective and practical method for preparing nanofibers, has attracted increasing attention in the field of nanomaterials research. The patent on the electrospinning device first appeared in 1934 and was invented by Formhals [Formhals A. Process and apparatus for preparing artificial threads. USP, 1,975,504.]. The electrospinning nozzle device is the most widely used in the early stage. Although the electrospinning device with a single nozzle can effectively prepare various uniform nanofibers, its preparation efficiency is relatively low, and the output is often dozens of micrograms per minute. Subsequently, many scholars set out to study double nozz...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D04H3/16D01D5/00D01D5/098D01D1/06D01D4/02
Inventor 程博闻康卫民焦晓宁庄旭品任元林李全祥刘雍
Owner TIANJIN POLYTECHNIC UNIV
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