A kind of air bubble spinning device

Abstract

The invention discloses an airflow bubble spinning device. Bubbles are formed through adopting a bubbling device, and airflow is used as power; after the bubbles are cracked, the bubbles are stretched and fined under the action of the high-speed airflow so as to generate a lot of micro-nano fibers, so that the yield is extremely improved, and large-batch production of the micro-nano fibers is realized to a certain extent; and meanwhile, a micro-nano fiber aggregate with a fiber yarn-shaped structure also can be obtained. A whole spinning process is finished without electrostatic interaction; and a spinning technology is simple and easy to control, and safety production is realized. An air guide pipe is connected with a pipeline heater, and the pipeline heater is provided with a temperature control device, so that the temperature of the jet airflow can be adjusted according to a high-polymer bubble cracking and filamentation temperature, so as to optimize spinning conditions. Furthermore, a receiving device is of a net-shaped structure, so that the penetration of liquid drops and airflow is facilitated, and the collected micro-nano fibers are relatively uniform and stable.

Description

technical field [0001] The invention belongs to the technical field of spinning, and in particular relates to an air bubble spinning device. Background technique [0002] Micro-nano fibers have high specific surface area and excellent mechanical properties, so they are widely used in biotechnology, environmental engineering, medical and health, energy storage, military and anti-terrorism and other fields. At present, there are various methods for producing micro-nanofibers, and electrospinning technology is considered to be the easiest and most direct method to prepare micro-nanofibers. [0003] The principle of electrospinning is that the polymer solution is injected from the capillary to form a jet, and the charged jet is subjected to electrostatic force under a high-voltage electrostatic field to overcome its surface tension and be stretched and refined to form micro-nano fibers. The traditional single-nozzle electrospinning technology can obtain stable and uniform micro...

AI Technical Summary

Problems solved by technology

However, there are still many problems in these methods, such as: the spinnability of high-concentration and high-viscosity solutions is poor, the solution containing particles is easy to block the needle, and the yield of preparing micro-nano fibers is low. These problems have hindered the development of micro-nano fibers to a certain extent. mass production of

At the same time, high-voltage electrostatic hazards are very serious. In industrial production, a large number of electrospinning equipment operates continuously for a long time, and fire or explosion accidents will be inevitable, which will have a corresponding impact on production safety.

In addition, due to the effect of static electricity, the jet diverges after the bubbles burst, and the spinning process is unstable, which makes it difficult to control the spinning conditions, causing a series of problems such as waste of raw materials and pollution of the environment.

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