Device and method for preparing oriented polysulfonamide superfine fiber by using magnetized electrostatic spinning method

An electrospinning method and technology of polysulfoneamide, which is applied in the field of devices for preparing orientation-arranged polysulfoneamide ultrafine fibers, achieves the effects of high repeatability, easy promotion, and simple operation

Inactive Publication Date: 2010-06-09
SHANGHAI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the above documents and patents do not use polysulfoneamide as the research object.

Method used

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  • Device and method for preparing oriented polysulfonamide superfine fiber by using magnetized electrostatic spinning method
  • Device and method for preparing oriented polysulfonamide superfine fiber by using magnetized electrostatic spinning method
  • Device and method for preparing oriented polysulfonamide superfine fiber by using magnetized electrostatic spinning method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Embodiment 1, the concrete steps are as follows:

[0028] 1. Using 4,4'-diaminodiphenylsulfone and terephthaloyl chloride as monomers, and using dimethylacetamide DMAc as solvent, directly polycondensed to obtain PSA-DMAc solution, and obtained PSA-DMAc by calculating the quality of raw materials The mass percentage concentration of the solution is 32%, and then the solvent DMAc is added to dilute to obtain a pure PSA spinning solution with a mass percentage concentration of 16% for use.

[0029] 2. Preparation of oil-phase magnetic Fe 3 O 4 For solution, see Li LIU, Qinghua JIAO, Cheng PENG, Shijiang HE, Lihua WANG. Ultrasonic-assisted synthesis and strepavidin conjugation of amino-magnetic nanoparticles, Nuclear Science and Techniques, 19(6):370-375.

[0030] 3. At room temperature, place the homemade Fe 3 O 4 The solution was added dropwise to the pure PSA spinning solution, and ultrasonically dispersed for 12 h to obtain a magnetized PSA spinning solution for us...

Embodiment 2

[0032] Example 2: This example is basically the same as Example 1, the difference is: no oil-phase magnetic Fe is added to the PSA spinning solution 3 O 4 solution; a pair of parallel permanent magnets 4 are not placed on the aluminum foil receiver 3. The morphology of the spun fibers is shown in the attached Figure 5 .

Embodiment 3

[0033] Embodiment 3: This embodiment is basically the same as Embodiment 1, the difference is that a pair of parallel permanent magnets 4 are not placed on the aluminum foil receiver 3 . The morphology of the spun fibers is shown in Image 6 .

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Abstract

The invention relates to a device and a method for preparing an oriented polysulfonamide PSA superfine fiber by using a magnetized electrostatic spinning method. The device comprises a DC (Direct Current) high-voltage power supply, an injector, and a receiver which is obtained by arranging a pair of parallel permanent magnets on an aluminum foil receiver; two leads are respectively led from the anode and the cathode of the DC high-voltage power supply, wherein one lead is connected with the aluminum foil receiver, and the other lead is connected with a spinning nozzle of the injector. The method comprises the steps of: adding an oil-phase magnetic Fe3O4 solution to a polysulfonamide spinning solution to obtain a magnetized polysulfonamide PSA spinning solution, and processing the magnetized polysulfonamide PSA spinning solution under the action of a magnetic filed to obtain an oriented superfine fiber with the fiber diameter distribution of 100-500 nm. The method has the advantages of simple operation, high replication degree and easy popularization.

Description

technical field [0001] The present invention relates to a device and method for preparing oriented polysulfoneamide (PSA) ultrafine fibers. In particular, a device and method for preparing oriented polysulfoneamide PSA ultrafine fibers by magnetization electrospinning method. Background technique [0002] As the only high temperature resistant fiber product with independent intellectual property rights in my country, polysulfone amide fiber (PSA) has excellent heat resistance, thermal stability, high temperature dimensional stability, flame retardancy, electrical insulation and radiation resistance. , and has good physical and mechanical properties, chemical stability and dyeability. When developing polysulfone amide (PSA) fibers, Chinese scientists changed the traditional process route of using m-phenylenediamine as the second monomer used by other companies in the world, and creatively introduced p-phenylene structure and sulfone group, so that the The amide group and the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D01D5/00D01D1/02D01D13/02C08G69/42D01F6/90
Inventor 刘丽肖长发顾巍巍徐文婷夏文健
Owner SHANGHAI UNIV
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