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Preparation method and application of stretchable polymer composite material

A composite material and polymer technology, applied in the direction of conjugated synthetic polymer artificial filament, conductive/antistatic filament manufacturing, filament/wire forming, etc., can solve high equipment requirements, limited applications, high fiber brittleness, etc. question

Inactive Publication Date: 2016-09-28
CHANGZHOU UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although polyaniline spinning alone can prepare conductive fibers with high conductivity and small diameter, the requirements for equipment are relatively high, and the fibers are brittle, which greatly limits its application.

Method used

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  • Preparation method and application of stretchable polymer composite material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Example 1 Stretchable polyacrylonitrile / polyaniline composite nanofibers

[0028] (1) Preparation of polyacrylonitrile / aniline precursor solution

[0029] Pour 10 mL of N,N-dimethylformamide (DMF) into a conical flask, and slowly add 1.35 g of polyacrylonitrile (PAN, molecular weight 1.0×10 6 ), at room temperature, continuously stirred with a magnetic stirrer for 12 h to obtain an electrospinning stock solution; under the condition of magnetic stirring, slowly drop 12.5 mL of aniline (ANI) into the PAN solution. Magnetic stirring was carried out for 10 min, and when all was dripped in, the stirring was continued for 3 h to obtain the precursor solution of PAN / ANI.

[0030] (2) Preparation of polyacrylonitrile / aniline ordered precursor fibers

[0031] After pre-stretching the rubber substrate by 300%, it is fixed on a metal receiving roll. The electrospinning device was used for spinning, the receiving distance was 10cm, the working voltage was positive pressure of 1...

Embodiment 2

[0037] Example 2 Stretchable polyacrylonitrile / polyaniline / carbon nanotube composite nanofibers

[0038] (1) Preparation of polyacrylonitrile / aniline / carbon nanotube precursor solution

[0039] Pour 10 mL of N,N-dimethylformamide (DMF) into a conical flask, and slowly add 1.35 g of polyacrylonitrile (PAN, molecular weight 1.0×10 6 ), and continuously stirred with a magnetic stirrer for 12 h at room temperature to obtain an electrospinning dope; under magnetic stirring, 10 mL of carbon nanotube (CNTs) dispersion with a mass fraction of 70-80‰ was added to the PAN solution Then, 12.5 mL of aniline (ANI) was slowly dropped into the above mixed solution. After each addition of 1 mL of LANI solution, magnetic stirring was required for 10 min. .

[0040] (2) Preparation of polyacrylonitrile / aniline / carbon nanotube ordered precursor fibers

[0041]After pre-stretching the rubber substrate by 300%, it is fixed on a metal receiving roll. The electrospinning device was used for spin...

Embodiment 3

[0046] Example 3 Stretchable polyacrylonitrile / polyaniline / silver nanowire composite nanofibers

[0047] (1) Configuration of polyacrylonitrile / aniline / silver nanowire precursor solution

[0048] Pour 10 mL of N,N-dimethylformamide (DMF) into a conical flask, and slowly add 1.35 g of polyacrylonitrile (PAN, molecular weight 1.0×10 6 ), at room temperature, continuously stirred with a magnetic stirrer for 12 h to obtain an electrospinning stock solution; under magnetic stirring, 5 mL of silver nanowires (AgNWs) was added to the PAN solution, and then 12.5 mL of aniline (ANI) was added. Slowly drop into the above mixed solution. After each addition of 1 mL of ANI solution, magnetic stirring is required for 10 min. When all of the ANI solution is added, continue stirring for 3 h to obtain the PAN / ANI / AgNWs precursor solution.

[0049] (2) Preparation of polyacrylonitrile / aniline / silver nanowire ordered precursor fibers

[0050] After pre-stretching the rubber substrate by 300%,...

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Abstract

The invention relates to a preparation method of a polymer composite material capable of being stretched in a wide range and in particular relates to a preparation method and application of a stretchable polymer composite material based on super-aligned orderly fibers. Aligned ultrathin nanofibers are deposited on a rubber base pre-stretched by 200-400% (the length after stretching is 2-4 times the original rubber length) by adopting the electrostatic spinning technology and utilizing a roller collection method, and a folded structure is formed after rubber recovers, thus preparing the stretchable composite material.

Description

technical field [0001] The invention relates to a preparation method of a stretchable polymer composite material in a large range, in particular to a preparation method of a stretchable polymer composite material based on super-aligned ordered fibers and its application. Background technique [0002] Currently, flexible stretchable sensors have special needs in wearable devices. The ultra-large tensile properties are mainly based on super-aligned carbon nanotubes [Science, 2015, 349, 400]. However, the preparation process of super-aligned carbon nanotubes is complicated. Electrospinning technology can rapidly prepare nanofibers at low cost. Polyaniline (PANI) is widely used in chemical power sources, antistatic coatings, electromagnetic shielding materials, anti-electromagnetic Corrosion, sensors and other fields have broad application prospects. Although polyaniline spinning alone can produce conductive fibers with high conductivity and small diameter, the requirements ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D01F8/08D01F8/16D01F1/09C08G73/02D01D5/00
CPCC08G73/0266D01D5/003D01D5/0076D01D5/0092D01F1/09D01F8/08D01F8/16
Inventor 袁宁一张阳丁建宁彭诗思王裕琦程广贵
Owner CHANGZHOU UNIV
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