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Production device for multi-roll solid-pin electrode nanofiber non-woven fabrics

A production device and non-woven fabric technology, which is applied in the fields of non-woven fabrics, fiber treatment, textiles and papermaking, etc., can solve the problems of drop spinning voltage, thick fiber diameter, clogging, etc., and achieve uniform liquid loading and reduce to Effect of spinning voltage

Inactive Publication Date: 2012-10-03
TIANJIN POLYTECHNIC UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The production device is specially designed with a solid needle electrode spinneret roller, which solves the problem of clogging and dripping in the capillary needle electrospinning process and the high spinning voltage and thick fiber diameter in the needleless roller spinning process. The problem of overcoming the technical difficulties of electrospinning nanofibers in high-concentration spinning solutions

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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  • Production device for multi-roll solid-pin electrode nanofiber non-woven fabrics
  • Production device for multi-roll solid-pin electrode nanofiber non-woven fabrics
  • Production device for multi-roll solid-pin electrode nanofiber non-woven fabrics

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] Such as figure 1 A double-roller solid needle electrode nanofiber production device shown includes a liquid storage tank 1, a liquid transfer roller 2, a solid needle electrode spinneret roller 3, a receiving device 4, and a high-voltage electrostatic generator 5. The width of the liquid transfer roller 2 is 20cm, and the radius is 5cm, and the radius of the solid needle electrode spinneret roller 3 (the distance from the center of the axis of the solid needle tip) is 5cm, and the selection is as follows: Figure 4 For the fork-shaped solid needle electrode shown, the length of 32 solid needle electrodes is 1cm, the width of the fork is 0.5mm, and the needle density is 6 needles / cm 2 , the distance between the needle tip and the surface of the fluorine rubber roller 3 with liquid is 0.5mm. During work, 30% polyvinyl alcohol / water spinning solution is injected into the liquid storage tank 1 through the liquid inlet 11, and the excess spinning solution flows out through ...

Embodiment 2

[0036] Such as figure 1 A double-roller solid needle electrode nanofiber production device shown includes a liquid storage tank 1, a liquid transfer roller 2, a solid needle electrode spinneret roller 3, a receiving device 4, and a high-voltage electrostatic generator 5. The width of the liquid transfer roller 2 is 200cm, and the radius is 50cm, and the radius of the solid needle electrode spinneret roller 3 (the distance from the center of the axis of the solid needle tip) is 20cm, and the selection is as follows: Figure 5 For the cylindrical solid needle electrode shown, the solid needle electrode has 32 needles, the length is 4cm, and the needle density is 16 needles / cm 2 , the distance between the tip of the needle and the surface of the fluorine rubber of the transfer roller 3 is 1 mm. During work, 6% polyvinylpyrrolidone / ethanol spinning solution is injected into the liquid storage tank 1 through the liquid inlet 11, the excess spinning solution flows out through the o...

Embodiment 3

[0038] Such as figure 1 A double-roller solid needle electrode nanofiber production device shown includes a liquid storage tank 1, a liquid transfer roller 2, a solid needle electrode spinneret roller 3, a receiving device 4, and a high-voltage electrostatic generator 5. The width of the liquid transfer roller 2 is 100cm, and the radius is 20cm, and the radius of the solid needle electrode spinneret roller 3 (the distance from the center of the axis of the solid needle tip) is 10cm, and the selection is as follows: Figure 6 For the conical solid needle electrode shown, the solid needle electrode has 32 needles, the length is 2cm, and the needle density is 16 needles / cm 2 , the distance between the tip of the needle and the surface of the fluorine rubber of the transfer roller 2 is 0.5mm. During work, 25% polyurethane / N,N-dimethylformamide spinning solution is injected into the liquid storage tank 1 through the liquid inlet 11, and the excess spinning solution flows out throu...

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Abstract

The invention discloses a production device for multi-roll solid-pin electrode nanofiber non-woven fabrics. The production device mainly comprises a liquid storage tank, a liquid roller, a solid-pin electrode spinning roller, a receiving device and a high voltage electrostatic generator, wherein the liquid roller 2 is made of polypropylene resin, and is wrapped with fluororubber at the outer side, the breadth of the liquid roller is 20-200cm, and the radius range of the liquid roller is 5-50cm; the breadth of the solid-pin electrode spinning roller 3 is consistent to that of the liquid roller, and the radius of the solid-pin electrode spinning roller is 3-20cm; the needling density of a solid-pin electrode 22 is 1-16 needles / cm2; and the solid-pin electrode is characterized in that the structure of the pin is in one of a fork shape, a cylinder shape, a prism shape, a cone shape, a pyramid shape and the like, the pin length of the solid-pin electrode 22 is 1-4cm, and the distance from the pin tip to the surface of the liquid roller is 0.1-1mm. The production device disclosed by the invention is capable of producing electro-spinning nanofibers with the spinning solution of which the concentration reaches more than 25%, the critical voltage is usually not higher than 25kV, the production efficiency can be more than 20g / min, the range of the diameter of the prepared nanofiber is 50-500nm, and the average diameter is smaller than 400nm.

Description

technical field [0001] The invention relates to an electrostatic spinning device, in particular to a multi-roller solid needle electrode nanofiber nonwoven fabric production device. Background technique [0002] In a narrow sense, nanofibers refer to fibers with a diameter less than 100nm. Due to their extremely fine diameter, the specific surface area of ​​the fibers has undergone a qualitative leap, which greatly improves their surface energy, thus endowing them with special small size effects, surface effects, Quantum size effect, macroscopic quantum tunneling effect, etc., all exhibit excellent properties in terms of physical (light, heat, electromagnetic, etc.), chemical and other properties, and will become research hotspots in the 21st century in the future. Nanofiber nonwovens have broad application prospects in environmental protection filter materials, nanocomposite reinforcement materials, tissue engineering scaffolds, drug release carriers, photoelectric devices,...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D04H1/728D01D5/00
Inventor 康卫民程博闻赵义侠蔡占军刘雍庄旭品刘亚闫静
Owner TIANJIN POLYTECHNIC UNIV
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