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Poly-p-phenylene terephthamide/polyaniline conductive composite material and conductive fiber and preparation methods thereof

A technology of poly-p-phenylene terephthalamide and poly-p-phenylene terephthalamide is applied in the field of poly-p-phenylene terephthalamide/polyaniline conductive fibers and their preparation, and can solve the problem of poor conductivity , difficult to control conditions, poor electrical conductivity and mechanical properties of poly(p-phenylene terephthalamide)/polyaniline electrical fibers, etc., to achieve the effect of high electrical conductivity and excellent electrical conductivity

Active Publication Date: 2013-11-20
SHENZHEN WOTE ADVANCED MATERIALS
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0007] The purpose of the present invention is to overcome the above-mentioned deficiency of prior art, provide a kind of polyparaphenylene terephthalamide / polyaniline conductive composite material and preparation method thereof, to solve existing polyparaphenylene terephthalamide Technical Problems of Poor Conductivity of Amine / Polyaniline Conductive Composite Materials
[0008] Another object of the present invention is to provide a kind of poly-p-phenylene terephthalamide / polyaniline conductive fiber and preparation method thereof, to solve the condition of existing p-phenylene phthalamide / polyaniline electric fiber preparation method Difficult to control, or the technical problems of uneven dispersion of poly-p-phenylene terephthalamide and polyaniline and poor electrical conductivity and mechanical properties of the prepared poly-p-phenylene terephthalamide / polyaniline electrical fiber

Method used

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  • Poly-p-phenylene terephthamide/polyaniline conductive composite material and conductive fiber and preparation methods thereof
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  • Poly-p-phenylene terephthamide/polyaniline conductive composite material and conductive fiber and preparation methods thereof

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preparation example Construction

[0039] Correspondingly, the embodiment of the present invention also provides a preparation method of poly(p-phenylene terephthalamide / polyaniline) conductive composite material. The process flow of the method is as follows: figure 2 Shown, please refer to figure 1 . The method includes the following steps:

[0040] S01. Preparation of a dispersion of polyparaphenylene terephthalamide: disperse polyparaphenylene terephthalamide in deionized water to form a dispersion of polyparaphenylene terephthalamide;

[0041] S02. Prepare a polyaniline shell layer on the surface of polyparaphenylene terephthalamide particles using aniline monomer to form the polyparaphenylene terephthalamide / polyaniline conductive composite material with a core-shell structure: Add protic acid and aniline to the dispersion of polyparaphenylene terephthalamide prepared in step S01, and carry out dispersion treatment, and then add an oxidant at 0℃~50℃ to initiate the polymerization reaction of aniline, after the...

Embodiment 1

[0084] A preparation of poly(p-phenylene terephthalamide / polyaniline) conductive composite material includes the following steps:

[0085] 1. Preparation of poly-p-phenylene terephthalamide: In a nitrogen environment, 0.04 mol lithium chloride, 0.13 mol pyridine and 0.0579 mol p-phenylenediamine were dissolved in 2 mol N-methylpyrrolidone successively, and stirred continuously At 50℃, add 0.0582mol terephthaloyl chloride for polycondensation reaction, then raise the system to 90℃ for maturation, after maturing for 0.5h, wash with deionized water to obtain polyparaphenylene terephthalamide ;

[0086] 2. Preparation of polyparaphenylene terephthalamide / polyaniline conductive composite material: 8g polyparaphenylene terephthalamide was dispersed in 160g deionized water , And add 0.13mol concentrated HCl, 0.8g (0.0086mol) aniline, keep stirring, add 20.65mL 0.5mol / L ammonium persulfate aqueous solution to the system at 50℃ to initiate polymerization, after reaction for 0.5h, filter, u...

Embodiment 2

[0090] A preparation of poly(p-phenylene terephthalamide / polyaniline) conductive composite material includes the following steps:

[0091] 1. Preparation of poly-p-phenylene terephthalamide: 0.10 mol calcium chloride, 0.20 mol liquid ammonia and 0.0868 mol p-phenylenediamine were dissolved in 2 mol N-methylpyrrolidone in order in a nitrogen environment. Stir, add 0.0885mol terephthaloyl chloride at -5°C for polycondensation reaction, then raise the system to 20°C for maturation, after maturing for 2h, wash with deionized water to obtain polyterephthaloyl terephthaloyl chloride amine.

[0092] 2. Preparation of polyparaphenylene terephthalamide / polyaniline conductive composite: 8g polyparaphenylene terephthalamide was dispersed in 32g deionized water , Add 0.0086mol dodecylbenzenesulfonic acid and 8g (0.0860mol) aniline, keep stirring, add 34.41mL2mol / L ammonium persulfate aqueous solution into the system at 0℃ to initiate polymerization, after 24h reaction, filter, It was washed ...

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Abstract

The invention discloses a poly-p-phenylene terephthamide / polyaniline conductive composite material and a preparation method thereof, and poly-p-phenylene terephthamide / polyaniline conductive fiber and a preparation method thereof. The poly-p-phenylene terephthamide / polyaniline conductive composite material is a core-shell structure adopting the poly-p-phenylene terephthamide as a core and the polyaniline as a shell, and the poly-p-phenylene terephthamide / polyaniline conductive composite material has the advantages of stable structure and strong conductivity. The preparation method of the poly-p-phenylene terephthamide / polyaniline conductive fiber adopts the core-shell structure poly-p-phenylene terephthamide / polyaniline conductive composite material as a raw material, so that in the prepared conductive fiber, the polyaniline is dispersed and distributed the poly-p-phenylene terephthamide matrix, and the conductivity and mechanical properties of the poly-p-phenylene terephthamide / polyaniline conductive fiber are improved.

Description

Technical field [0001] The invention belongs to the technical field of composite fibers, and in particular relates to a polyparaphenylene terephthalamide / polyaniline conductive composite material and a preparation method thereof, a polyparaphenylene terephthalamide / polyaniline conductive fiber and the same Preparation. Background technique [0002] Poly-p-phenylene terephthalamide was synthesized by DuPont in the United States in 1965 using low-temperature solution polycondensation, and then PPTA / H 2 SO 4 The solution has liquid crystal behavior, and the method of dry jet wet spinning was invented to obtain high-performance poly-p-phenylene terephthalamide fiber. But it does not have conductive properties. [0003] Among various conductive polymers, polyaniline has the advantages of diversified structure, good environmental stability, easy synthesis, low monomer cost, reversible redox characteristics, and excellent photoelectric performance. It is considered to be the conductive p...

Claims

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Application Information

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IPC IPC(8): C08L77/06C08L79/02C08G73/02D01F8/12D01F8/16
Inventor 曾永斌吴宪何征刘则安周龙
Owner SHENZHEN WOTE ADVANCED MATERIALS
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