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Micro-nano fiber blending material as well as preparation method and application thereof

A micro-nano fiber and nano-fiber technology, applied in the field of textiles, can solve the problems of micro-nano fiber thickness limitation, low production efficiency, loose structure, etc., and achieve the effect of excellent performance, high strength and short process

Pending Publication Date: 2022-05-06
泉州师范学院(石狮)生态智能织物工程技术研究院
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The method of self-assembling nanowires in micron webs is complicated to operate and has low production efficiency
The thickness of the micro-nano fiber blend material prepared by wet-forming is limited, the structure is loose, and the strength is low

Method used

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  • Micro-nano fiber blending material as well as preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] Preparation of a micro-nano fiber blend material

[0030] Step 1: Dissolve PAN electrospinning powder in DMF solvent and stir it magnetically for 4 hours to obtain an electrospinning solution with a mass fraction of 15%. Take PP slices for melt blowing and set aside;

[0031] Step 2: Set the receiving distance of electrospinning to 15cm, and the spinning voltage to 29KV. Set the melt blown receiving distance to 24cm, the extrusion temperature to 260°C, the wind pressure to 120Kpa, the under-net suction to 4000r / min, and the drying temperature to 150°C;

[0032] Step 3: Turn on the electrospinning device and the meltblown device, and prepare the micro-nano fiber blended filter material online.

[0033] The micro-nano fiber blend material prepared in this example can be used as an air filter material.

Embodiment 2

[0035] Preparation of a micro-nano fiber blend material

[0036] Step 1: Dissolve PAN electrospinning powder in DMF solvent and stir it magnetically for 4 hours to obtain an electrospinning solution with a mass fraction of 12%. Take PP slices for melt blowing and set aside;

[0037] Step 2: Set the electrospinning receiving distance to 15cm, and the spinning voltage to 25KV. Set the receiving distance of melt blown to 33cm, the extrusion temperature to 260°C, the wind pressure to 130Kpa, the under-net suction to 5000r / min, and the drying temperature to 150°C;

[0038] Step 3: Turn on the electrospinning device and the meltblown device, and prepare the micro-nano fiber blended filter material online.

[0039] The micro-nano fiber blend material prepared in this example can be used as a sound-absorbing material.

Embodiment 3

[0041] Preparation of a micro-nano fiber blend material

[0042] Step 1: Dissolve PAN electrospinning powder in DMF solvent and stir it magnetically for 4 hours to obtain an electrospinning solution with a mass fraction of 14%. Take PP slices for melt blowing and set aside;

[0043] Step 2: Set the electrospinning receiving distance to 14cm, and the spinning voltage to 30KV. Set the receiving distance of melt blown to 33cm, the extrusion temperature to 260°C, the wind pressure to 130Kpa, the under-net suction to 5000r / min, and the drying temperature to 150°C;

[0044] Step 3: Turn on the electrospinning device and the meltblown device, and prepare the micro-nano fiber blended filter material online.

[0045] The micro-nanofiber blend material prepared in this example can be used as an oil-absorbing material.

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Abstract

The invention discloses a micro-nano fiber blending material as well as a preparation method and application thereof. The preparation method comprises the following steps: 1) dissolving nanofiber powder in a DMF (Dimethyl Formamide) solvent, and magnetically stirring uniformly to obtain an electrostatic spinning solution; taking micron fibers for melt-blowing, and slicing for later use; (2) the electrostatic spinning receiving distance of the electrostatic spinning device is set to be 14-16 cm, and the spinning voltage is set to be 25-30 KV; the melt-blowing receiving distance of a melt-blowing device is set to be 24-33 cm, the extrusion temperature is 250-270 DEG C, the air pressure is 120-130 Kpa, the air suction speed under a net is 4000-5000 r / min, and the drying temperature is 140-160 DEG C; and (3) starting the electrostatic spinning device and the melt-blowing device, and preparing the micro-nanofiber blended filtering material on line. According to the method, two spinning technologies of melt-blowing and electrostatic spinning are combined, the micro-nano fiber blending material is efficiently prepared through a one-step method, and the micro-nano fiber material prepared through the method is stable in structure and controllable in surface density, thickness, fiber diameter, blending proportion and other parameters.

Description

technical field [0001] The invention relates to the field of textiles, in particular to a micro-nano fiber blend material and a preparation method and application thereof. Background technique [0002] In the micro-nanofiber blend material, nanofibers and microfibers interpenetrate to form a whole. Micron fibers play the role of skeleton, while nanofibers play the role of increasing specific surface area, improving filtration efficiency and adsorption capacity. The blending of microfibers and nanofibers is an effective way for filter materials to achieve high efficiency and low resistance. In addition, the synergistic effect of the fibers of the two scales can improve the sound and oil absorption properties of the material. Using polyethylene glycol (PEG) / polypropylene (PP) blend modified material as raw material, Zhang Heng et al. prepared PEG / PP micro-nano fiber blend material in one step based on melt blown technology. In order to refine the fiber diameter of the melt-...

Claims

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Application Information

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IPC IPC(8): D04H1/728D04H1/56D01D5/00B01D39/16B01D17/022
CPCD04H1/728D04H1/56D01D5/0015B01D39/1623B01D17/0202B01D2239/025B01D2239/0631B01D2239/0622
Inventor 齐欢张初阳马文华张勇猛
Owner 泉州师范学院(石狮)生态智能织物工程技术研究院
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