Electrostatic spinning device with spinning nozzle capable of doing linear reciprocating motion
A reciprocating straight line, electrospinning technology, applied in filament/thread forming, textile and papermaking, bundling of newly ejected filaments, etc. The effect of low operating voltage and improved yield
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 Example 1: Preparation of PVP fibers with a linear structure in an orderly arrangement: Use a disposable straw to extract about 1 milliliter of PVP precursor solution and inject it into the syringe needle tube 7 for spinning. 10. Adjust the distance between the stainless steel needle 8 and the aluminum foil collector 10 to 1 cm, put a glass slide on the collector, cover the glass slide with a piece of clean and dry paper, and connect the high-voltage DC power supply 9 to make The switch is in the "ON" state, the voltage is adjusted to 1.8 kV, and the stationary needle starts spinning; the power supply of the brushless DC motor 3 is turned on, and the knob of the governor 1 is rotated so that the rotating speed is 200rpm, and the stationary needle starts spinning. Reciprocating linear motion, after a few seconds of stable speed, quickly remove the paper covering the cover glass, and start timing, after 15 seconds, turn off the high-voltage DC power supply 9, make its swit...
Example 2: Preparation of cross-structured PVP fibers: first prepare orderly arranged PVP fibers according to the steps in Example 1, then rotate the collected samples by 90° and repeat the electrospinning once again with the same conditions and steps to obtain The optical microscope photos of the cross-structured PVP fibers are as follows image 3 shown.
 Embodiment 3: the preparation of the PVP fiber of orderly arrangement distorted structure: adjusting the voltage among the embodiment 1 is 3.5 kilovolts, other steps are constant, finally obtain the PVP fiber of orderly arrangement distorted structure, the SEM photo of its sample is as follows Figure 4 As shown, it can be seen that the prepared fibers have a twisted structure and are arranged in an orderly manner, but due to the distribution of wave-shaped fibers on a two-dimensional scale, there is an intercrossing phenomenon between the fibers.
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