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A kind of centrifugal spinning preparation method of micron or nanofibrous membrane

A nanofiber membrane and centrifugal spinning technology, applied in fiber processing, textile and papermaking, filament/thread forming, etc., can solve problems such as pollution and low production efficiency, and achieve easy reaction conditions, high porosity, and good expansion effect of space

Active Publication Date: 2018-07-06
博森纺织科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, the preparation of micron or nanofibrous membranes mainly focuses on the method of using electrospinning, and the following inherent defects in electrospinning limit the large-scale commercial use of this method: (1) a high voltage electric field needs to be applied during the preparation process; 2) The production efficiency is low; (3) The solution requires a certain proportion of solvent to make the solution have a certain conductivity and cause pollution

Method used

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  • A kind of centrifugal spinning preparation method of micron or nanofibrous membrane
  • A kind of centrifugal spinning preparation method of micron or nanofibrous membrane
  • A kind of centrifugal spinning preparation method of micron or nanofibrous membrane

Examples

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Effect test

Embodiment 1

[0026] (1) Accurately weigh 1.8g polystyrene (PS) (wherein the molar mass M=260000g / mol of PS) with an analytical balance and place it in a 20ml sample bottle, add 8.2g N-N dimethylformamide (DMF) dropwise, The sample bottle was sealed with raw material tape, heated to 60°C, and stirred for 24 hours to finally obtain a centrifugal spinning solution with evenly dispersed polystyrene.

[0027] (2) adopt figure 1 The centrifugal spinning device shown is used for centrifugal spinning, the set speed is 8000rpm / min, the distance between the collecting rods is 10cm, and the diameter of the spinneret holes is 0.4mm. Take 5ml of the spinning solution sample in the spinning head, turn on the motor, and pass through the collecting rods. Polystyrene (PS) micro or nanofibrous membranes are obtained.

[0028] The centrifugal spinning device used in centrifugal spinning is as follows: figure 1 with figure 2 As shown, it includes a motor 1, a spinning head 2 and a collecting rod 3. The sp...

Embodiment 2

[0035] (1) Accurately weigh 2.0g polystyrene (PS) (wherein the molar mass M=260000g / mol of PS) with an analytical balance and place it in a 20ml sample bottle, add 8.0g N-N dimethylformamide (DMF) dropwise, The sample bottle was sealed with raw material tape, heated to 60°C, and stirred for 24 hours to finally obtain a centrifugal spinning solution with evenly dispersed polystyrene.

[0036] (2) adopt figure 1 The centrifugal spinning device shown is used for centrifugal spinning, the set speed is 8000rpm / min, the distance between the collecting rods is 10cm, and the diameter of the spinneret holes is 0.4mm. Take 5ml of the spinning solution sample in the spinning head, turn on the motor, and pass through the collecting rods. Polystyrene (PS) micro or nanofibrous membranes are obtained.

Embodiment 3

[0038] (1) Accurately weigh 2.0g polystyrene (PS) (wherein the molar mass M=260000g / mol of PS) with an analytical balance and place it in a 20ml sample bottle, add 8.0g N-N dimethylformamide (DMF) dropwise, The sample bottle was sealed with raw material tape, heated to 60°C, and stirred for 24 hours to finally obtain a centrifugal spinning solution with evenly dispersed polystyrene.

[0039] (2) adopt figure 1 The centrifugal spinning device shown is used for centrifugal spinning, the set speed is 10000rpm / min, the distance between the collecting rods is 10cm, and the diameter of the spinneret hole is 0.4mm. Take 5ml of the spinning solution sample in the spinning head, turn on the motor, and pass the collecting rod Polystyrene (PS) micro or nanofibrous membranes are obtained.

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Abstract

The invention belongs to the technical field of functional nano fiber preparation, and particularly relates to a centrifugal spinning preparation method for a micro-nano fiber membrane. The centrifugal spinning preparation method for the micro-nano fiber membrane comprises the following steps of 1 centrifugal spinning solution preparing, wherein raw material polystyrene (PS) is dissolved into N,N-dimethylformamide (DMF), stirring is performed, then a centrifugal spinning solution which is uniformly dispersed is obtained, and the mass concentration of PS is 16 wt%-24 wt%; 2 centrifugal spinning, wherein centrifugal spinning is performed by adopting the centrifugal spinning solution prepared in the step 1, and the polystyrene (PS) micro-nano fiber membrane is obtained. The preparation method is simple, and the polystyrene micro-nano fiber membrane can be quickly and efficiently prepared.

Description

technical field [0001] The invention belongs to the technical field of preparation of functional nanofibers, in particular to a preparation method for centrifugal spinning of micron or nanofiber membranes. Background technique [0002] At present, the preparation of micron or nanofibrous membranes mainly focuses on the method of using electrospinning, and the following inherent defects in electrospinning limit the large-scale commercial use of this method: (1) a high voltage electric field needs to be applied during the preparation process; 2) the production efficiency is low; (3) the solution requires a certain proportion of solvent to make the solution have a certain conductivity and cause pollution. Therefore, in terms of cost, scale, and controllability research, there is still a long way to go from practicality and application requirements. [0003] Centrifugal spinning overcomes the limitations encountered in the fabrication method of electrospun micro / nanofibers and ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D01D5/18D04H1/4282D04H1/70
CPCD01D5/18D04H1/4282D04H1/70
Inventor 李永强邹超邵建中
Owner 博森纺织科技股份有限公司