Aligned nanofibrous yarn preparing device and using method thereof

Abstract

The invention relates to an aligned nanofibrous yarn preparing device and a using method thereof. Air holes which are distributed in a matrix mode are formed in the circumference of a hollow outer roller, an airflow gathering inner sleeve is fixedly arranged inside the hollow outer roller, communicated with the hollow outer roller, and connected with air suction equipment, the hollow outer rolleris driven by a transmission mechanism to rotate, a compact net covers the hollow outer roller, the surface of the hollow outer roller is separated into fiber bundling grooves through spaced insulatingseparating rings, an electrostatic spinning spinneret mechanism corresponds to the hollow outer roller, and twisting and winding mechanisms correspond to all the fiber bundling grooves respectively.The using method comprises the steps of starting the electrostatic spinning spinneret mechanism to generate jet flow of a spinning solution; starting the transmission mechanism to drive the hollow outer roller to rotate; starting the air suction equipment for air exhaust, wherein the spinning solution is gathered and distributed to form aligned nanofibrous bundles; conducting twisting and winding.By means of the aligned nanofibrous yarn preparing device and the using method thereof, subsection bundling and continuous production of nanofibers are achieved, high alignment is achieved, the structural integrity is guaranteed, and the production efficiency is improved.

Description

technical field [0001] The invention belongs to the technical field of nanofiber yarn preparation, and in particular relates to an orientation nanofiber yarn preparation device and a use method thereof. Background technique [0002] The biggest feature of nanofibers is small diameter and large specific surface area. As the diameter of the fiber becomes thinner, the number of surface atoms, surface tension and surface energy increase sharply, thus showing specificity in physicochemical aspects. Therefore, trying to combine nanotechnology with the traditional textile industry in order to improve the status quo of the textile industry and process functional textiles with high added value has been the goal of many textile research scholars and fiber scientists. There are many ways to prepare nanofibers, and the processing technology of electrospinning is simple. Since Anton formhals obtained the US patent in 1934, this method of spinning with the help of electrostatic field has ...

AI Technical Summary

Problems solved by technology

This yarn forming method mainly includes two needles of opposite polarities, a metal disc and a metal hollow rod. The two needles are arranged opposite to each other. The attraction of the hollow rod to the nanofibers forms a twisted yarn triangular area between the metal disc and the metal hollow rod, which can prepare oriented nanofiber yarns, but there is still a spinning twisted triangular area that causes uneven force on the fibers The problem that the head cannot be continuously produced makes the twist of the prepared nanofiber yarn uncontrollable and the yarn continuity is poor

[0004] From the above studies, it can be seen that although there are many methods for preparing electrospun yarns, nanofiber yarns are mainly prepared by using single or double needles, and the yield is very low, which cannot meet the needs of industrial production.

However, the spinning area of ​​the needleless nozzle is so large that it cannot be directly gathered at one point to form a yarn.

Patent CN105970309A discloses a method of spraying nanofibers on filaments and then dissolving the filaments to obtain nanofiber yarns. The process is complicated, and the obtained nanofibers are disorderly and have poor mechanical properties.

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