Patterning electrostatic spinning device
An electrospinning and patterning technology, applied in textiles and papermaking, filament/thread forming, fiber processing, etc., can solve the problems of limited control of fiber patterning, high precision requirements of the air jet system and high processing costs, and achieve processing Low cost, less waste, simple and convenient control system
Pending Publication Date: 2019-07-12
BEIJING UNIV OF CHEM TECH
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Problems solved by technology
The device has very high precision requirements and processing costs for the air injection system, and the control of the airflow direction and airflow volume on the fiber patterning is still limited
Method used
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[0021] A patterned electrospinning device of the present invention, the schematic diagram of the device is as follows figure 1 As shown, it mainly includes a liquid supply device 1, a high-voltage electrostatic generator 2, a receiving mesh curtain 3, an exciter 4, a frequency regulator 5, a bottom plate 6, a return spring 7, a frequency receiving plate 8, magnetic particles 9 and a guide roller 10 . The needle of the liquid supply device 1 is connected to a high-voltage electrostatic generator 2, and a receiving mesh curtain 3 is set at 5-30 cm below, and the receiving mesh curtain 3 is fixed by four guide rollers 10 and moves laterally. A frequency receiving board 8 is placed 6-15mm directly below the receiving net curtain 3, and a layer of magnetic particles 9 is laid on the frequency receiving board 8, and the right side is connected with the vibrator 4 and the frequency regulator 5. The magnetic particles 9 have a small density and are light in weight , can bounce on the...
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Abstract
The invention discloses a patterning electrostatic spinning device. The patterning electrostatic spinning device mainly comprises a liquid supply device, a high-pressure electrostatic generator, a receiving web curtain, an exciter, a frequency regulator, a bottom plate, reset springs, a frequency receiving plate, magnetic particles and guide rollers and is characterized in that the liquid supply device is connected with the high-pressure electrostatic generator, and the receiving web curtain is fixed by the four guide rollers and can move transversely through the four guide four guide rollers;a layer of magnetic particles is laid on the frequency receiving plate, and the exciter and the frequency regulator are connected to the right side of the frequency receiving plate; a bottom plate isarranged below the frequency receiving plate, the reset springs are mounted on the bottom plate in an arrayed manner, and the bottom plate is grounded; the magnetic particles on the frequency receiving plate are changed by regulating the frequency regulator to form different pattern aggregation morphologies so as to collect fibrous membranes of different patterns. The electrostatic spinning device the temperature regulating of various patterns can be achieved on one substrate, and material waste is reduced; the device is simple in control system, convenient to operate, low in processing costand applicable to the batch production of patterning spinning, cell culture and the like.
Description
technical field [0001] The invention belongs to the field of electrostatic spinning devices, in particular to a patterned electrostatic spinning and method. Background technique [0002] Electrospinning technology is a method that can directly and continuously prepare nanofibers, and is recognized by the industry as one of the important ways to prepare nanofibers in large quantities. Nanofibers prepared by electrospinning technology have excellent characteristics such as small fiber diameter, high porosity, and large specific surface area. In recent years, the preparation of nanofibrous membranes with specific patterns and arrangements has important application prospects in tissue engineering, bacterial culture, sensors, catalysis, composite reinforcement materials, and filtration. [0003] During the electrospinning process, because the fiber jet is affected by various factors such as charge repulsion and fluid disturbance, it is difficult to achieve accurate positioning o...
Claims
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IPC IPC(8): D01D5/00
CPCD01D5/0076
Inventor 张有忱陈晓青李好义李相男戴雄飞陈琪琪丁玉梅杨卫民
Owner BEIJING UNIV OF CHEM TECH