Electrospinning device for fabricating membrane by using spinnerets aligned in machine direction and transverse direction and method for using the same

摘要

The present invention relates to an electrospinning device for fabricating a membrane, in particular, to an electrospinning device for fabricating membrane by using spinnerets aligned in machine direction (MD) and transverse direction (TD) in a high-voltage DC electric field, and to method for using the same. In addition to producing a single-layer nanofiber membrane from a polymer composite, the electrospinning device according to the present invention can also conveniently produce a multilayer composite nanofiber membrane from more than one polymer composites. The electrospinning device comprises a control section, an electrospinning section and an ancillary section. The electrospinning section comprises a MD spinnerets set and a TD spinnerets set that are alternately arranged and moves above a membrane collecting device in a to-and-fro scanning manner so as to improve the evenness and strength of the obtained membrane. The high-voltage DC electric field is applied between the MD and TD spinnerets sets and a stainless steel conveyer belt for collecting the membrane. A polymer solution supplied to the MD and TD spinnerets sets is split into nanoflows under the action of the electric field, accumulated on the stainless steel conveyer belt to form a membrane and carried to a collecting roller to be collected.

主权项

1. An electrospinning device for fabricating a membrane by using spinnerets aligned in machine direction (MD) and transverse direction (TD) comprising a section for electrospinning nanofiber membrane, an ancillary section and a control section for controlling the operation of both the section for electrospinning nanofiber membrane and the ancillary section, characterized in that
the section for electrospinning nanofiber membrane comprises a stainless steel conveyor belt, at least one MD spinnerets set mounted above the stainless conveyor belt with the spinnerets aligning in the MD, and at least one TD spinnerets set mounted above the stainless conveyor belt with the spinnerets aligning in the TD, the MD and TD spinnerets sets moving in a to-and-fro scanning manner transverse to the moving direction of the stainless steel conveyor belt, the electrospinning direction of the MD and TD spinnerets sets being perpendicular to a surface of the stainless steel conveyor belt, and a high voltage electrostatic field being applied between the MD and TD spinnerets sets and the stainless steel conveyor belt.