Airflow bundling rotating twisting nanometer twisted thread preparation device and process

Abstract

The invention discloses an airflow bundling rotating twisting nanometer twisted thread preparation device and process. The device mainly comprises a heating coil, an airflow auxiliary static electric spinning nozzle device, an air suction device, a perforated electrode, a perforated acrylic plate, a high-voltage static electricity generating device, a V-shaped groove collecting roller, a roller support frame, a circular disc, a center shaft and an electric motor, wherein the air suction device can form vertical and downward gathering airflow, so that local negative pressure is formed at the upper side; fiber can favorably fall into the upper air inlet; the rotating speed of the V-shaped groove collecting roller is approximately identical to the falling speed of the fiber, so that the fiber orientation can be favorably realized; the regular collection of the fiber can also be realized. By regulating the rotating speed of the motor, the rotating speed of the circular disc round the center shaft can be controlled; the goal of twisting fiber between the air outlet of the air suction device and the V-shaped groove collecting roller can be achieved; nanometer twisted threads with different twisting degrees can be obtained through controlling the twisting angle of the fiber by controlling the rotating speed of the circular disc; the application requirements in different fields can be met.

Description

technical field [0001] The invention relates to a nano-twisted yarn preparation device and process for airflow clustering, rotating and twisting, and belongs to the field of electrospinning. Background technique [0002] Electrospinning is a process in which a charged polymer solution or a polarized melt forms a Taylor cone in an electrostatic field, a jet is formed on the Taylor cone, and then the fibrous substance is obtained by solvent evaporation or melt cooling and solidification. . With the development of nanotechnology, the electrospinning method is widely regarded as a simple and efficient method for industrialized preparation of nanofibers due to its wide applicability of raw materials, low cost and easy industrialization. . [0003] The ultrafine fibers obtained by traditional electrospinning exist in the form of non-woven fabrics, which limits its application range to a certain extent, while nano-twisted threads are used in artificial blood vessels, surgical sut...

AI Technical Summary

Problems solved by technology

However, these methods have some problems, such as low twisting stability, poor orientation and uniformity, and cannot control the twist

Chinese patent (patent number: 201210554168.8) ...

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