A method for forming a stable environment for electrospinning fiber jets with controllable airflow

Abstract

The invention discloses a method for forming the electrospun fiber spraying stable environment through controllable airflow, and belongs to the field of electrostatic spinning. In order to achieve thepurposes that electrostatic spinning temperature and humidity are constantly controlled, and the spinning space is compact and adjustable, the method is technically characterized in that in the spraying process of an electrostatic spinning fiber spraying device, an air source with the constant humidity and constant temperature is supplied to an air blowing groove through a constant temperature and humidity blower, in the air blowing groove, the air flow passes through a hollow layer so as to guide air below a supporting frame forming the air blowing groove, air is guided out through an air blowing opening in the tip end of the lower wall of the air blowing groove so as to form an air curtain, the air curtain is received by an air suction groove corresponding to the lower portion of the air blowing groove, and air is exhausted through the air guiding effect of an air suction fan communicated with the air suction groove.

Description

technical field [0001] The invention belongs to the field of electrospinning, and relates to a constant temperature and humidity control device and method for an electrospinning injection environment. Background technique [0002] Electrospinning technology is widely used in the field of nanofiber material preparation. Due to its excellent physical and chemical properties, nanofiber materials have a wide range of application fields and unlimited development prospects. Countries are stepping up to improve the existing electrospinning technology or develop new electrospinning equipment. In the electrospinning production process, the charged polymer solution is sprayed, stretched, split, volatilized and solidified in a high-voltage electrostatic field to finally form a fiber-like characteristic. There are many parameters that affect the morphology and properties of electrospun fibers, such as the voltage provided by the high-voltage power supply, the distance between the colle...

AI Technical Summary

Problems solved by technology

Most of the domestic spinning equipment only measures and controls the ambient temperature of spinning, and occasionally performs simple manual intervention on humidity, such as adding desiccant, dehumidifier, etc. Simple and arbitrary control of ambient temperature and humidity lacks operational reliability and stability of environmental parameters, which is extremely unfavorable for high-quality production or research of electrospun fibers

A small number of high-end electrospinning fiber equipment in foreign countries has installed special temperature and humidity control devices in the spray environment, but the equipment structure is complex and expensive, which is not conducive to large-scale promotion and use in China

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