Constant-temperature constant-humidity box for electrostatic spinning and method for realizing constant temperature and constant humidity

Abstract

The invention relates to a constant-temperature constant-humidity box for electrostatic spinning and a method for realizing constant temperature and constant humidity. The box comprises a work chamber, a processing chamber, and a refrigeration and dehumidifying apparatus, wherein the work chamber, the processing chamber, and the refrigeration dehumidifying apparatus are arranged in the box body. A circulating air duct is arranged in the work chamber; and an inlet and an outlet of the circulating air duct are connected with the processing chamber. The refrigeration and dehumidifying apparatus includes semiconductor refrigeration plates; and a refrigeration end of each semiconductor refrigeration plate is arranged in the circulating air duct. And an exhaust fan is arranged at the inlet of the circulating air duct. According to the invention, the semiconductor refrigeration plates are used for carrying out cooling and dehumidification on recirculating air; and the recirculating air is recycled continuously in the processing chamber and the work chamber under active suction of the exhaust fan and the effect of the circulating air duct, thereby controlling the humidity and temperature in the processing chamber. Because vibration and noises of the exhaust fan and the semiconductor refrigeration plates are low, the provided constant-temperature constant-humidity box is especially suitable for precise electrostatic spinning. The box and method can be applied to temperature and humidity control of electrostatic spinning.

Description

technical field [0001] The invention relates to the field of electrostatic spinning, in particular to a constant temperature and humidity box and a constant temperature and humidity method suitable for electrostatic spinning. Background technique [0002] Electrospinning is a special fiber manufacturing process in which a polymer solution or melt is jet-spun in a strong electric field. Under the action of an electric field, the droplet at the needle will change from a spherical shape to a conical shape (that is, "Taylor cone"), and fiber filaments will be obtained from the conical end. This method can produce nanoscale diameter polymer filaments, which is a very effective method for preparing ultrafine fibers. During the spinning process, the deposition location of the jet and the spinning diameter are affected by factors such as temperature and humidity. How to ensure the stability of the temperature and humidity in the processing space of the electrospinning equipment is ...

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Problems solved by technology

[0003] Traditional constant temperature and humidity equipment generally use heating tubes, compressors and evaporators to ensure the temperature and humidity in the box, but such disadvantages: in the refrigeration and dehumidification process, the vibration and noise of the compressor will be large when it is working. Electrospinning processing is a kind of ultra-precision processing, and a precise processing environment must be guaranteed, especially to avoid the influence of factors such as vibration and noise.

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