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Method for preparing polysulfonamide/nanometer TiO2 composition fiber by electrostatic spinning method

A nano-titanium dioxide, electrospinning technology, applied in fiber processing, rayon manufacturing, fiber chemical characteristics, etc., can solve problems such as poor anti-ultraviolet performance, improve poor anti-ultraviolet performance, simple preparation device, and acceptable preparation process. Strong control effect

Inactive Publication Date: 2013-07-03
SHANGHAI UNIV OF ENG SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, polysulfoneamides have serious drawbacks, namely poor UV resistance

Method used

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  • Method for preparing polysulfonamide/nanometer TiO2 composition fiber by electrostatic spinning method
  • Method for preparing polysulfonamide/nanometer TiO2 composition fiber by electrostatic spinning method
  • Method for preparing polysulfonamide/nanometer TiO2 composition fiber by electrostatic spinning method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] (1) Preparation of polysulfoneamide / nano-titanium dioxide composite spinning solution:

[0025] Nano-titanium dioxide (nano-TiO 2 ) into a drying oven for drying to remove moisture. Use a measuring cylinder to measure 1mL of N,N’-dimethylacetamide (DMAC) solvent into a beaker, and weigh 0.061g of dried nano-TiO with a balance 2 , pour it into a beaker and stir it with a glass rod to make it preliminarily mix with the DMAC solvent, then seal the beaker with plastic wrap and put it into an ultrasonic cleaner for 0.5 hours of ultrasonic vibration to prepare a mixed solution (when ultrasonic oscillation, ensure that the ultrasonic The water level in the cleaner is higher than the DMAC liquid level mark in the beaker); pour 50g of nano-TiO into the mixed solution that has been initially ultrasonically oscillated 2 It is 12wt% PSA spinning stock solution, and stir it with a magnetic heating stirrer for 0.5 hours, seal it with plastic wrap after completion, put it in an ultr...

Embodiment 2

[0029] The nano-TiO in the step (1) in the embodiment 1 2 The addition amount is adjusted to 0.186g, the addition amount of DMAC is adjusted to 3mL, and other conditions remain unchanged, the nano-TiO 2 It is 3wt% polysulfone amide / nano-titanium dioxide composite fiber. figure 1 It is a scanning electron microscope picture of the nanocomposite fiber prepared in this example. It can be seen from the figure that nano-titanium dioxide particles are embedded on the surface of the fiber.

Embodiment 3

[0031] The nano-TiO in the step (1) in the embodiment 1 2 The addition amount of DMAC is adjusted to 0.316g, the addition amount of DMAC is adjusted to 5mL, and other conditions remain unchanged, the nano-TiO 2 It is 5wt% polysulfone amide / nano-titanium dioxide composite fiber.

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Abstract

The invention belongs to the technology of nano fiber preparation and particularly relates to a method for preparing polysulfonamide / nanometer TiO2 composition fiber by an electrostatic spinning method. The method comprises the following steps: firstly placing dry nano titanium dioxide into a N, N'-Dimethylacetamide, sealing and carrying out ultrasonic vibration; then dissolving mixed solution into spinning stock solution containing 10 to 15 wt percent, stirring, sealing and carrying out ultrasonic vibration; and then obliquely pouring the prepared polysulfonamide / nano titanium dioxide composite spinning solution into a static silk-spinning machine for static spinning. The added proportioning of the nano titanium dioxide, the N,N'-Dimethylacetamide and the spinning stock solution is 1 g to 12-9 ml to 100-900 g. The composite nano fiber prepared by the invention remarkably overcomes the defect that the uvioresistant performance of the polysulfonamide is poor, and the preparation device for the composition fiber is simple, low in cost and strong in adjustment and control of the preparation technology.

Description

technical field [0001] The invention belongs to nanofiber preparation technology, in particular to a method for preparing polysulfoneamide / nano titanium dioxide composite fiber by electrostatic spinning. Background technique [0002] The electrospinning method, that is, the polymer jet electrostatic stretching spinning method, is completely different from the traditional method. It is a spinning method that uses a high-voltage electric field force to spray and stretch a charged solution to obtain nanofibers. Electrospinning has become one of the main ways to effectively prepare nanofiber materials due to its simple manufacturing equipment, low spinning cost, wide variety of spinnable materials, and controllable process. Electrospinning technology has produced a wide variety of nanofibers, including organic, organic / inorganic composites, and inorganic nanofibers, and the diameter of the fibers prepared by this method is one to two times lower than that of solution spinning or...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D01F6/94D01F1/10D01D5/00
Inventor 辛斌杰陈文杰刘岩吴湘济王香琴沈翠翠
Owner SHANGHAI UNIV OF ENG SCI
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