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A kind of poly-3-hexylthiophene/carbon nanotube composite material and its preparation method

A carbon nanotube and hexylthiophene technology is applied in the field of poly-3-hexylthiophene/carbon nanotube composite materials and preparation, and achieves the effects of preventing entanglement, improving specific surface area and complete morphology

Active Publication Date: 2018-01-26
HUAZHONG UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] In view of the above defects or improvement needs of the prior art, the present invention provides a poly-3-hexylthiophene / carbon nanotube composite material and a preparation method, the purpose of which is to prepare A composite material with complete and uniform distribution of carbon nanotubes, thus solving the existing technical problems of combining poly-3-hexylthiophene and carbon nanotubes

Method used

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  • A kind of poly-3-hexylthiophene/carbon nanotube composite material and its preparation method
  • A kind of poly-3-hexylthiophene/carbon nanotube composite material and its preparation method
  • A kind of poly-3-hexylthiophene/carbon nanotube composite material and its preparation method

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[0029] Poly 3-hexylthiophene / carbon nanotube composite material provided by the invention, its preparation method comprises the following steps:

[0030] (1) Poly 3-hexylthiophene and high molecular weight polymer are uniformly dispersed in an organic solvent to obtain a mixed solution of poly 3-hexylthiophene / high molecular weight polymer, wherein the concentration of poly 3-hexylthiophene is between 0.2wt% and 10wt%. Between, the high molecular weight polymer concentration is between 0.2wt% and 2wt%. The high molecular weight polymer is one of polyethylene oxide, polymethyl methacrylate and polycaprolactone. The organic solvent is one or a mixture of chloroform, chlorobenzene, tetrahydrofuran, o-dichlorobenzene and p-dichlorobenzene.

[0031] (2) Utilize high-energy ultrasound to uniformly disperse carbon nanotubes in the poly-3-hexylthiophene / high molecular weight polymer mixed solution obtained in step (1) to obtain poly-3-hexylthiophene / carbon nanotubes / high molecular we...

Embodiment 1

[0037] A poly-3-hexylthiophene / carbon nanotube composite material, containing 47.5wt% of poly-3-hexylthiophene and 5wt% of uniformly dispersed carbon nanotubes, the carbon nanotubes have complete morphology and their diameters are between 40nm and 60nm , the length of which is between 5 μm and 15 μm, and the surface of the carbon nanotube is coated with poly-3-hexylthiophene with an average thickness of 5 nm. The carbon nanotubes are preferably multi-walled carbon nanotubes, the poly-3-hexylthiophene has a tacticity of 98%, and a number average molecular weight of 54000-75000. The composite material is a composite film.

[0038] Described poly-3-hexylthiophene / carbon nanotube composite material, its preparation method comprises the following steps:

[0039] (1) Poly 3-hexylthiophene and high molecular weight polymer are uniformly dispersed in organic solvent to obtain poly 3-hexylthiophene / high molecular weight polymer mixed solution, wherein poly 3-hexylthiophene concentration...

Embodiment 2

[0044] A poly 3-hexylthiophene / carbon nanotube composite material, containing 45 wt% of poly 3-hexyl thiophene and 10 wt% of uniformly dispersed carbon nanotubes, the carbon nanotubes have a complete shape and a diameter between 40-60nm, The length is between 5-15 μm, and the surface of the carbon nanotube is coated with poly-3-hexylthiophene with an average thickness of 7 nm. The carbon nanotubes are preferably multi-walled carbon nanotubes, the poly-3-hexylthiophene has a tacticity of 98%, and a number average molecular weight between 54,000 and 75,000. The composite material is a composite film.

[0045] Described poly-3-hexylthiophene / carbon nanotube composite material, its preparation method comprises the following steps:

[0046] (1) Poly 3-hexylthiophene and high molecular weight polymer are uniformly dispersed in an organic solvent to obtain a mixed solution of poly 3-hexylthiophene / high molecular weight polymer, wherein the concentration of poly 3-hexylthiophene is 0...

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Abstract

The invention discloses a poly-3-hexylthiophene / carbon nanotube composite material and a preparation method. The composite material contains 30wt% to 80wt% of poly-3-hexylthiophene and 1wt% to 15wt% of uniformly dispersed carbon nanotubes. Between 5 μm and 15 μm, the surface of the carbon nanotube is coated with poly-3-hexylthiophene with a thickness between 3 nm and 10 nm. The preparation method comprises the following steps: (1) uniformly dispersing poly-3-hexylthiophene and high-molecular-weight polymers in an organic solvent; (2) utilizing high-energy ultrasonic waves to uniformly disperse carbon nanotubes in the polymer prepared in step (1). 3-hexylthiophene / high molecular weight polymer mixed solution; (3) casting or spinning to obtain the poly-3-hexylthiophene / carbon nanotube composite material. In the composite material provided by the invention, the carbon nanotubes have complete morphology and uniform dispersion, and have achieved good comprehensive properties such as electricity, mechanics and heat conduction.

Description

technical field [0001] The invention belongs to the field of composite materials, and more specifically relates to a poly-3-hexylthiophene / carbon nanotube composite material and a preparation method. Background technique [0002] Due to its excellent electro-optic properties, environmental stability and solubility, poly-3-hexylthiophene has broad application prospects in solar cells, electrochromic devices, chemical sensors, electromagnetic shielding materials and other fields. On the other hand, carbon nanotubes are excellent fillers for functional or structural composites due to their excellent mechanical properties, thermal conductivity, and electrical properties. Compounding with carbon nanotubes has been used to improve the carrier mobility and photoelectric conversion efficiency of poly-3-hexylthiophene films. [0003] However, due to the strong van der Waals force between carbon nanotubes, carbon nanotubes are usually not well dispersed in composite materials due to ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L65/00C08K9/10C08K9/00C08K7/24D01F6/94D01F1/10
Inventor 周兴平刘星雨解孝林薛志刚
Owner HUAZHONG UNIV OF SCI & TECH