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

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...

AI Technical Summary

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.

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