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Nano-fiber covering yarn electrostatic spinning device and application thereof

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 a wide range of applicable materials and simple operation.

Active Publication Date: 2014-09-10
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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  • Nano-fiber covering yarn electrostatic spinning device and application thereof
  • Nano-fiber covering yarn electrostatic spinning device and application thereof
  • Nano-fiber covering yarn electrostatic spinning device and application thereof

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; wherein, the rotation of the motor 1 drives the driving wheel 2 to rotate, and the driving wheel 4 is driven by the belt 3 to rotate. The metal funnel 7 is fixed on the stand 5 through the bearing 6, and the driven wheel 4 is integrated with the metal funnel 7 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, a screw 27. Slide block 28, shaft coupling 24, 25, frame pl...

Embodiment 2

[0038]0.8 g of polycaprolactone (PCL) was accurately weighed and added to 10 ml of hexafluoroisopropanol, and stirred to obtain a PCL solution with a mass volume ratio of 8%. Add the PCL solution into two syringes respectively, and use a 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 respectively; polylactic acid (PLA) long The silk is drawn from the bobbin through the yarn guide hook, the inner hole of the funnel, and the yarn guide hook, and is wound on the winding roller. The winding speed is 25 cm / s, and the traverse speed is 2 cm / min; the outer diameter of the metal funnel is 10 cm, the bevel angle of the funnel is 45°, and the rotation speed is 500 rpm. The PCL solution is drawn 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...

Embodiment 3

[0040] Accurately weigh 1.6 grams of regenerated silk fibroin (SF) and 0.4 grams of polyethylene oxide (PEO) into 20 milliliters of deionized water, and stir to obtain an SF / PEO solution with a mass-volume ratio of 10%. Add 2.4 mg of bone morphogenetic protein-2 (BMP-2) to 10 ml of SF / PEO solution, and stir to obtain a homogeneous spinning solution A. Add 0.2 g of nano-hydroxyapatite with an average particle size of 50-150 nm to 10 ml of SF / PEO solution, and stir to obtain a uniform spinning solution B. Add the spinning solutions A and B into two syringes respectively, and use a 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 through the yarn guide hook, the inner hole of the funnel, and the yarn guide hook, and is wound on the winding roller at a winding speed of 10 cm / s; the outer diameter of the ...

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Abstract

The invention relates to a nano-fiber covering yarn electrostatic spinning device and application thereof. The nano-fiber covering yarn electrostatic spinning device comprises a twisting device, a backing-off device, a winding device, a double-needle electrostatic spinning device and a control system. The invention also provides a method for preparing electrostatic spinning nano-fiber covering yarns. The method comprises the following steps of performing spinning by using prepared spinning liquor through the double-needle electrostatic spinning device; depositing nano-fibers on a metal funnel and core yarns; uniformly winding the nano-fibers on the core yarns moving at constant speed by rotating the metal funnel; and finally forming the nano-fiber covering yarns of which skin layers are nano-fibers. The invention also provides another method for preparing a nano-fiber fabric. The other method for preparing the nano-fiber fabrics comprises the following steps of using water soluble yarns as core yarns; preparing the nano-fiber covering yarns by using the method; preparing a covering yarn fabric by using a textile technology; and dissolving the core yarns to obtain the nano-fiber fabric. The maneuverability is high; the nano-fiber covering yarn electrostatic spinning device is novel in structure; and the nano-fibers on surfaces of the covering yarns are arranged controllably.

Description

technical field [0001] The invention belongs to a nanofiber device and its application, in particular to a device for electrospinning nanofiber core-spun yarn and its application. Background technique [0002] In electrospinning, under the action of a high-voltage electric field, the polymer fluid will be gradually thinned by the force of the electric field to form ultra-fine fibers with a fiber diameter ranging from tens of nanometers to several microns. In the electrospinning process, the polymer fluid will produce directional motion under the action of the electric field force, and the charged fluid 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. shape area. The nanofibers are formed in a random arrangement to form a non-woven fiber mat on the receiving device. Nanofiber mat has a large specific surface are...

Claims

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Application Information

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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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