INNOVATION CENTER

03-15
2018
What is near-field direct writing electrospinning principle?
Near-field was put forward in 20006 by Pros. Sun Daoheng and Pros. Lin Liwei, who were the core member of our company’s innovation team. In electrospinning technology, when the distance between collector and nozzle are controlled at the range of 0.5-5mm, with precious motion control, high-precision ordered nanofiber will be produced by direct writing.
03-15
2018
How to keep TiO₂ stable?
Control humidity at 40%RH when spinning. Add glacial acetic acid, PVAc and DMF to tetraisopropyl titanate with the lowest humidity.
03-15
2018
What is electrospinning basic principle?
Electrospinning, also called polymer injection and electrostatic stretching spinning process, is greatly different from traditional ways. Firstly, polymer solution or melt takes with thousands of high-voltage electricity. And electric polymer droplets are accelerated at the top of capillary Taylor cone under the influence of the electric field. Secondly, when the electric field power is strong enough, polymer droplets will inject a thin stream against surface tension, during which solution will evaporate or solidify. Finally the thin stream will be collected by collector, forming a non-woven cloth fibrofelt. During electrospinning process, droplets generally have electrostatic tension in an electric field, and therefore, when injection stream runs from capillary end to collector, it will accelerate, and induces injection stretching in the electric field.
03-15
2018
Application field of electrospinning nanofiber
Subject description: With the development of nano technology, electrospinning is going to play an important role in biomedical materials, filtration and protection, catalyzing, energy, photoelectricity, food engineering, cosmetics, etc. as a simple and effective novel process technique to produce nanofiber.
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