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Method for producing PMMA-based antistatic nano fiber

A nanofiber and electrostatic technology, applied in the manufacture of conductive/antistatic filaments, fiber chemical characteristics, textiles and papermaking, etc., can solve problems such as ineffective effects, achieve good repeatability, mild reaction conditions, and low production costs low effect

Inactive Publication Date: 2016-10-12
曹健
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the above methods often only improve a certain performance of PM-MA, and the effect is not obvious.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0010] Weigh 25% (mass fraction, the same below) PMMA, 5% β-CD and 1.25% CNTs dissolved in DMF solvent, magnetically stirred for 12 hours, ultrasonically oscillated at room temperature for 2 hours, and then the spinning solution was electrospun , adjust the flow rate of the spinning solution to 0.55mL / h, the applied voltage is 20kV, the receiving distance is 21cm, the electrospinning device is placed horizontally in the fume hood, and electrospinning is carried out at room temperature to obtain PMMA nanofibers.

Embodiment 2

[0012] Weigh 30% (mass fraction, the same below) PMMA, 6% β-CD and 1.5% CNTs dissolved in DMF solvent, magnetically stirred for 12h, ultrasonically oscillated at room temperature for 2h, and then the spinning solution was electrospun , adjust the flow rate of the spinning solution to 0.75mL / h, the applied voltage is 22kV, the receiving distance is 25cm, the electrospinning device is placed horizontally in the fume hood, and electrospinning is carried out at room temperature to obtain PMMA nanofibers.

[0013] Oxidative modification of CNTs by H2SO4 / HNO3 (3:1, V / V) mixed acid system, and ultrasonic vibration, effectively solved the problem of CNTs agglomeration and difficulty in dispersing in the solution, while utilizing the unique structure of β-CD Make β-CD and CNTs form inclusion complex. PMMA / β-CD / CNTs nanofibers were prepared by electrospinning, and the morphology of nanofibers was analyzed by SEM. The optimal process parameters of electrospinning were 0.6mL / h spinning so...

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PUM

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Abstract

The invention relates to a method for producing PMMA-based antistatic nano fiber. The method comprises the following steps: weighing 25-30% of PMMA (mass fraction, same below), 5-6% of beta-CD and 1.25-1.5% of CNTs, and dissolving the materials in a DMF solvent, performing magnetic stirring for 12 h, performing ultrasonic concussion for 2 h at room temperature, performing static spinning on spinning liquid, adjusting the flow amount of the spinning liquid to 0.55-0.75 mL / h, wherein the applied voltage is 20-22 kV, the reception distance is 21-25 cm, horizontally putting a static spinning apparatus in a fuming cupboard, and performing static spinning at the room temperature to obtain the PMMA-based antistatic nano fiber. The production method has the beneficial effects that the synthesis technology is simple, the reaction condition is mild, production cost is low, and repeatability is good, film forming ability of PMMA is improved by beta-CD, and CNTs is modified, and the composite nano fiber by taking PMMA as a main part is obtained.

Description

technical field [0001] The invention relates to a material synthesis method, in particular to a preparation method of PMMA-based antistatic nanofibers. Background technique [0002] The research of composite nanofibers is to prepare highly functional new materials, improve the performance and function of traditional synthetic fibers, and endow traditional fiber materials with new vitality. At present, the research on functional composite fibers has become one of the hotspots of many scholars. [0003] Polymethyl methacrylate (PMMA) is a transparent polymer material widely used in aviation, construction, agriculture and other fields. However, PMMA has poor wear resistance, low operating temperature, and is prone to static electricity. In response to these shortcomings, many modification studies have been carried out at home and abroad. The modification of PMMA is to adjust and change the molecular chain structure of the polymer and the aggregated state structure of the mol...

Claims

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Application Information

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IPC IPC(8): D01F6/52D01F1/09
CPCD01F6/52D01F1/09
Inventor 曹健
Owner 曹健