Preparation method of hybrid material compounded from fullerene micro-nano material and conjugated polymer

Abstract

The invention belongs to the technical field of material preparation, and relates to a preparation method of a hybrid material compounded from a fullerene micro-nano material and a conjugated polymer. The preparation method comprises the following steps: placing a fullerene substance into a agate mortar for grinding; dissolving the fullerene substance by adopting a good solvent, and then removing into a transparent glass bottle; carrying out ultrasonic dispersion by using ultrasonic waves in an ice-water bath, then filtering at room temperature to obtain a fullerene saturated solution, and then culturing by adding isopropanol to obtain suspending liquid which contains the fullerene micro-nano material; dissolving the conjugated polymer into the good solvent, and filtering to obtain a conjugated polymer solution; adding the conjugated polymer solution to the suspending liquid which has the volume ratio of 1-10 times and contains the fullerene micro-nano material; and carrying out oscillating mixing processing by using the ultrasonic waves, and culturing to obtain the hybrid material compounded from the fullerene micro-nano material and the conjugated polymer. The preparation method disclosed by the invention has the advantages of simple integral process, reliability in principle and short production period; the prepared material has the advantages of good property, wide application range, high reliability and environment friendliness.

Description

Technical field: [0001] The invention belongs to the technical field of material preparation, and relates to a composite modification technology of fullerene-based micro-nano materials, in particular to a method for preparing a hybrid material in which fullerene-based micro-nano materials are compounded with conjugated polymers. Background technique: [0002] Low-dimensional micro-nano carbonaceous materials are ideal systems for studying physical properties such as electron transport behavior, optical properties, and mechanical properties. They will play an important role in the research fields of integrated circuits and functional components such as micro-nano electronics and optoelectronic devices. Realizing the expansion of its application and diversification of functions, and the modification of low-dimensional nano-carbon structure materials have become a hot issue in the current scientific research of micro-nano materials. In 1985, Kroto et al. discovered the fulleren...

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Problems solved by technology

[0003] However, the above-mentioned methods have problems such as small aspect ratio of the obtained sample, poor control of purity, complicated preparation technology, etc.

In recent years, Japanese Laid-Open Patents 2005-254393A and 2006-124266A have disclosed 60 Preparation of fullerene C with single crystal structure by liquid-liquid interfacial precipitation from saturated organic solution and isopropanol 60 Nanowhiskers and nanotubes, the nanofibers synthesized by this method have a single crystal structure, high aspect ratio and high purity (99.9%), however, the problem of this method is the preparation of fullerene C 60 and C 70 The nanotubes have a long growth period (more than one week), and poor reproducibility, so it is difficult to prepare on a large scale; in view of these problems, Chinese patent CN100581998C discloses a simple, easy, repeatable, suitable for mass production, has a single crystal structure, high Template-free preparation method of solid or hollow fullerene-based micro-nanofibers with aspect ratio and high purity

[0005] Conductive polymers have been a hot research topic in the field of materials in recent years, but the conductivity of such conductive polymers is relatively low in the intrinsic state, and they must be doped to have good conductivity; fullerenes are good electron acceptors. body, and the conjugated polymer contains atoms with lone pairs of electrons, which are electron donors, so the conjugated polymer can be doped with fullerene molecules to increase its conductivity; about the preparation of the original fullerene powder and the conjugated Conjugated polymer hybrid materials have been reported endlessly, such as Wang et al. (Wang Q, Wang S, Li J, et al. J. Polym. ) with C 60 Powder and aniline were used as raw materials to prepare C 60 / PANI COMPOSITE, in C 60 And under a certain ratio of polyaniline, the electrical conductivity of the composite material is good; I.Sapurina et al. -2326) by adding C 60 Doping into polyaniline increases the thermal stability and conductivity of polyaniline, but these methods only use the properties of fullerene electron acceptors, and use it to dope conjugated polymers to increase their conductivity. This kind of doping is relatively expensive. If the fullerene-based micro-nano material prepared by the original fullerene powder can be hybridized with the conjugated polymer, the morphology of the fullerene-based micro-nano fiber / chip can be made Great changes have taken place, and at the same time, the conductivity of conjugated polymers has been improved by doping. Such recombination can obtain nano-hybrid materials with brand-new opto-electromagnetic and mechanical properties.