Intercalated composite material, preparation method thereof, and polymer nano-composite material

Abstract

The invention provides an intercalated composite material, a preparation method thereof, and a polymer nano-composite material. The intercalated composite material comprises an inorganic layer board and interlayer ions; the interlayer ions and the inorganic layer board are different in charges; the interlayer ions are formed from an anion fluorocarbon surfactant or a cationic fluorocarbon surfactant; and the inorganic layer board is made of an inorganic layered material. Compared with the prior art, the preparation method adopting the fluorocarbon surfactants with high surface activity, hydrophobicity, chemical inertia and heat stability to form the interlayer ions makes the interlaced composite material have high heat resistance, chemical stability resistance and unique interface characteristics; the fluorocarbon surfactants can disperse nanometer lamellae in a polymer matrix in a high concentration manner, so high content nanometer hybridization of the polymer nanocomposite material is realized; and the fluorocarbon surfactants have high heatproof temperature, so improvement of the dielectric properties, the corona resistance and the breakdown resistance of the polymer nanocomposite material is facilitated.

Description

technical field [0001] The invention belongs to the technical field of composite materials, and in particular relates to an intercalation composite material, a preparation method thereof, and a polymer nanocomposite material. Background technique [0002] Nanocomposite materials refer to composite materials whose dispersed phase size is nanoscale (1-100nm). The nano-dispersed phase has the characteristics of unique surface effect, volume effect, quantum size effect and macro-quantum tunneling effect, which make the polymer-based nanocomposites present many characteristics different from conventional composite materials, such as synchronous toughening and strengthening effect, high Strength, high modulus, corona resistance, breakdown resistance, photoelectric conversion, high-efficiency catalysis, and barrier properties. Therefore, polymer-based nanocomposites are an important aspect in the field of nanocomposite research and have attracted widespread attention. [0003] Na...

AI Technical Summary

Problems solved by technology

When the intercalated layered material prepared by this kind of hydrocarbon surfactant is combined with heat-resistant polymer materials (such as polyimide, aromatic polyamide, polyether ketone, polyether sulfone and polybenzimidazole, etc.) , the main problems that exist are: (1) in dipolar aprotic solvents (such as polyimide commonly used solvent N,N-dimethylformamide, N,N-dimethylacetamide, N-methylpyrrolidone , N-cyclohexylpyrrolidone) has a low peeling dispersion concentration, which affects the dispersion of nanosheets in the polymer matrix and reduces the performance of the composite material; (2) when blended with polar polymers at high temperatures, it is easy to degrade , easy to agglomerate, difficult to peel off and disperse; (3) low heat resistance, heat-resistant materials such as polyimide, etc., its processing and use temperatures exceed 300 ° C, at such temperatures hydrocarbon surfactants will Decomposition occurs, and it is difficult to remain between the interface between the polymer and the nanosheet, which affects the intercalation and exfoliation dispersion of the layered material, thereby affecting the performance of the composite material

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