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A device for electrospinning nanofiber core-spun yarn and its application

A nanofiber and core-spun yarn technology is applied in the field of nanofiber devices, which can solve the problems of random arrangement of nanofibers, limited application scope, difficult processing, etc., and achieves the effect of simple operation and wide range of applicable materials.

Active Publication Date: 2018-04-06
诺一迈尔(山东)医学科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the arrangement of such nanofibers is random and difficult to further process, which greatly limits its application range.

Method used

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  • A device for electrospinning nanofiber core-spun yarn and its application
  • A device for electrospinning nanofiber core-spun yarn and its application
  • A device for electrospinning nanofiber core-spun yarn and its application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] Such as figure 1 with 2 As shown, the device for preparing the electrospun nanofiber core-spun yarn includes a twisting device, an unwinding device, a winding device, a double-needle electrospinning device and a control system.

[0032] The twisting device includes a motor 1, a driving wheel 2, a belt 3, a driven wheel 4, a stand 5, a bearing 6, and a metal funnel 7. The rotation of the motor 1 drives the driving wheel 2 to rotate, and the driven wheel 4 is driven by the belt 3 to rotate. The metal funnel 7 is fixed on the stand 5 through the bearing 6. The driven wheel 4 and the metal funnel 7 are connected as a whole to drive the metal funnel 7 to rotate; the metal funnel 7 is grounded.

[0033] The unwinding device includes a creel 8, a bobbin 9, a tension clamp 10, and a yarn guide hook 11. The winding device includes a yarn guide hook 19, a winding roller 21, a winding motor 22, a traverse motor 23, and a screw rod. 27. Slide block 28, couplings 24, 25, frame plate 26 ...

Embodiment 2

[0038] Accurately weigh 0.8 g of polycaprolactone (PCL), add it to 10 ml of hexafluoroisopropanol, and stir to obtain a PCL solution with a mass-volume ratio of 8%. Put the PCL solution into two syringes respectively, and use the double-needle spinning device for spinning. The distance between the two needles is 24 cm, and the voltage of the high-voltage generator is -12 kV and +12 kV. The length of the polylactic acid (PLA) The silk is drawn from the bobbin and is wound on the winding roller through the guide hook, the inner hole of the funnel, and the guide hook. The winding speed is 25 cm / sec and the traverse speed is 2 cm / min. The outer diameter of the metal funnel is 10 Cm, the oblique angle of the funnel is 45°, and the rotation speed is 500 rpm. The PCL solution is elongated and thinned under the action of a high-voltage electrostatic field to form nanofibers, which are placed on the outer edge of the metal funnel and the PLA yarn to form a fiber mesh funnel opposite to ...

Embodiment 3

[0040] Accurately weigh 1.6 g of regenerated silk fibroin (SF) and 0.4 g of polyethylene oxide (PEO) into 20 ml of deionized water, and stir to obtain a 10% SF / PEO solution by mass volume. Add 2.4 mg of bone morphogenetic protein-2 (BMP-2) to 10 ml of SF / PEO solution, and stir to obtain a uniform spinning solution A. Add 0.2 g of nano-hydroxyapatite to 10 ml of SF / PEO solution, with an average particle size of 50-150 nm, and stir to obtain a uniform spinning solution B. Put the spinning solution A and B into two syringes respectively, and use the double-needle spinning device for spinning. The distance between the two needles is 24 cm, and the voltage of the high-voltage generator is -18 kV and +18 kV respectively; degumming the silk The filament is drawn from the bobbin and is wound on the winding roller through the guide hook, the inner hole of the funnel, and the guide hook. The winding speed is 10 cm / s; the outer diameter of the metal funnel is 12 cm, and the oblique angle ...

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Abstract

The invention relates to a device for preparing electrospinning nanofiber core-spun yarn and its application, comprising: a twisting device, an unwinding device, a winding device, a double-needle electrospinning device and a control system. The present invention also provides a method for preparing electrospun nanofiber core-spun yarn: the prepared spinning solution is spun through a double-needle electrospinning device, so that the nanofibers are deposited on the metal funnel and the core yarn, and the metal funnel rotates to The nanofiber is evenly wound on the core yarn moving at a constant speed, and finally forms the nanofiber core-spun yarn with the nanofiber as the cortex; the present invention also provides another preparation method of the nanofiber fabric, comprising: using water-soluble yarn as the core yarn , the nanofiber core-spun yarn is prepared by the above method; the core-spun yarn fabric is prepared by textile technology; the core yarn is dissolved to obtain the nanofiber fabric. The invention has high operability, the device has a novel structure, and the arrangement of nanofibers on the surface of the core-spun yarn has high controllability.

Description

Technical field [0001] The invention belongs to a nanofiber device and its application, and particularly relates to an electrostatic spinning nanofiber core-spun yarn device and its application. Background technique [0002] Electrospinning is under the action of a high-voltage electric field, the polymer fluid will be gradually thinned by the electric field force, forming ultra-fine fibers, the fiber diameter ranging from tens of nanometers to several microns. In the process of electrospinning, the polymer fluid will produce directional motion under the action of electric field force, and the charged body will be subjected to the electric field force perpendicular to the fluid when moving in the electric field, which will cause bending instability, and its motion range will eventually form a three-dimensional cone 形区。 Shaped area. The nanofibers are arranged in disorder during the forming process, forming a non-woven fiber mat on the receiving device. Nanofiber felt has a large...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D01H4/28D02G3/36D03D15/06D04B1/14D04B21/00D04C1/02D03D15/68
Inventor 莫秀梅李大伟柯勤飞黄晨
Owner 诺一迈尔(山东)医学科技有限公司
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