Aramid 1313/MWCNT (Multi-Walled Carbon Nanotube) nano fibers and preparation method thereof

A multi-walled carbon nanotube and nanofiber technology, applied in fiber processing, filament/thread forming, single-component polyamide rayon, etc. Effect
CN102877152AInactive Publication Date: 2013-01-16SUZHOU UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
SUZHOU UNIV
Publication Date
2013-01-16
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses aramid 1313 / MWCNT (Multi-Walled Carbon Nanotube) nano fibers and a preparation method thereof. The preparation method comprises the following steps of: obtaining MWCNTs grafted with octyl phenoxy poly ethoxy; uniformly dispersing the grafted MWCNTs into a solvent by ultrasonic treatment so as to obtain a solution containing the MWCNTs; obtaining a dissolution system containing halide, adding aramid 1313 fibers into the dissolution system and stirring to dissolve the aramid 1313 fibers so as to obtain a solution containing the aramid 1313 fibers; mixing the two solutions to obtain a spinning solution; by adopting an electrostatic spinning method, obtaining a nano fiber felt of which the fibers are directionally arranged; and obtaining the strengthened nano fiber felt by adopting thermal stretching treatment. According to the invention, the aramid 1313 / MWCNT nano fibers are obtained; the orientation degree of the aramid 1313 is improved; and the tensile breaking strength and the initial modulus of the fiber felt are improved.
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Description

technical field

[0001] The invention relates to a preparation method of nanofibers, in particular to aramid 1313 / multi-walled carbon nanotube nanofibers and a preparation method thereof. Background technique

[0002] Aramid 1313, the chemical name is polym-phenylene isophthalamide (PMIA). The heat resistance of the fiber is particularly outstanding. After continuous use at 260°C for 1000 hours, it can still maintain 65% of the original strength, and at 300°C for one week, it can maintain 50% of the original strength. In addition, it has excellent flame retardancy, Electrical insulation, chemical stability, radiation resistance and mechanical properties, etc., are widely used in special protective clothing, high temperature filter materials, electrical insulation materials and honeycomb structure wall materials, etc. PMIA has a highly regular molecular arrangement and crystal structure, and there are a large number of intermolecular and intramolecular hydrogen bonds, so the ...

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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