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Intercalation composite material and preparation method thereof, polymer nanocomposite material

A nano-composite material and composite material technology, applied in the field of intercalated composite material and its preparation, polymer nano-composite material, can solve the problems of low heat resistance, reduced composite material performance, easy degradation, etc., and achieve chemical resistance stability. Unique, improved dielectric properties, high surface activity

Active Publication Date: 2018-06-01
CHANGCHUN INST OF APPLIED CHEMISTRY - CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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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

Method used

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  • Intercalation composite material and preparation method thereof, polymer nanocomposite material
  • Intercalation composite material and preparation method thereof, polymer nanocomposite material
  • Intercalation composite material and preparation method thereof, polymer nanocomposite material

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preparation example Construction

[0058] The present invention also provides a method for preparing the above-mentioned intercalation composite material, comprising: reacting the inorganic layered material and the fluorocarbon surfactant in water to obtain the intercalation composite material; the inorganic layered material is positively charged layered materials or negatively charged inorganic layered materials; the fluorocarbon surfactant is an anionic fluorocarbon surfactant or a cationic fluorocarbon surfactant.

[0059] Among them, the present invention has no special limitation on the sources of all raw materials, which can be commercially available. The inorganic layered material and the fluorocarbon surfactant are the same as those described above, and will not be repeated here.

[0060] Reacting the inorganic layered material and the fluorocarbon surfactant in water, wherein the mass ratio of the inorganic layered material to the fluorocarbon surfactant is preferably 1:(0.5-20), more preferably 1:(1-1...

Embodiment 1

[0087] Add 500g of water, 1g of layered magnesium aluminum hydroxide and 3g of fluorocarbon surfactant potassium perfluorooctane sulfonate to the reaction vessel in sequence, react at 40°C for 24h, filter, and vacuum dry at 80°C to obtain a fluorocarbon intercalation layer magnesium aluminum hydroxide.

[0088] Utilize X-ray diffraction to analyze the fluorocarbon intercalation layered magnesium aluminum hydroxide obtained in embodiment 1, obtain its X-ray diffraction pattern, as figure 1 shown.

Embodiment 2

[0090] Add 500g of water, 1g of layered magnesium aluminum hydroxide and 3g of fluorocarbon surfactant sodium perfluorooctyl carboxylate to the reaction vessel in sequence, react at 40°C for 24h, filter, and vacuum dry at 80°C to obtain a fluorocarbon intercalation layer magnesium aluminum hydroxide.

[0091] Utilize X-ray diffraction to analyze the fluorocarbon intercalation layered magnesium aluminum hydroxide obtained in embodiment 2, obtain its X-ray diffraction pattern, as figure 2 shown.

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Abstract

The invention provides an intercalation composite material and a preparation method thereof, and a polymer nanocomposite material. The intercalation composite material includes an inorganic laminate and interlayer ions; the charge of the interlayer ion is opposite to that of the inorganic laminate; The interlayer ions are formed by anionic fluorocarbon surfactants or cationic fluorocarbon surfactants; the inorganic laminates are formed by inorganic layered materials. Compared with the prior art, the present invention uses fluorocarbon surfactants to form interlayer ions. Fluorocarbon surfactants have higher surface activity, hydrophobicity, chemical inertness and thermal stability, so that intercalation composites have higher Excellent heat resistance, chemical stability and unique interfacial properties; fluorocarbon surfactants can disperse nanosheets into the polymer matrix at a higher concentration, so that polymer nanocomposites can achieve a high content of nanohybridization; The higher heat resistance temperature of fluorocarbon surfactants helps to improve the dielectric properties, corona resistance and breakdown resistance of polymer nanocomposites.

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...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08K9/04C08K3/22C08K3/34C08G73/10
Inventor 郭海泉姚海波马晓野金日哲康传清丁金英邱雪鹏高连勋
Owner CHANGCHUN INST OF APPLIED CHEMISTRY - CHINESE ACAD OF SCI
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