Fluorescent and flame retarded functionalization hydrotalcite and preparation method thereof

A hydrotalcite and functionalization technology, applied in the field of functionalized hydrotalcite-like and its preparation, can solve the problems of poor compatibility between inorganic hydrotalcite-like and polymer materials, high price of ionic liquid, etc., and achieve light-transfer intensity and flame-retardant performance Improvement, cost reduction, simple equipment effect

Inactive Publication Date: 2013-04-24
SHANDONG AGRICULTURAL UNIVERSITY
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] In order to solve the technical problems in the above method and the poor compatibility between inorganic hydrotalcites and polymer materials, and the high price of using ionic liquids alone, the present invention provides a kind of fluorescent and flame-retardant hydrotalcites modified with ionic liquids. Functionalized hydrotalcite-like stone and its preparation method, doping and adsorbing ionic liquid in the space and surface between the hydrotalcite-like stone layers

Method used

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  • Fluorescent and flame retarded functionalization hydrotalcite and preparation method thereof
  • Fluorescent and flame retarded functionalization hydrotalcite and preparation method thereof
  • Fluorescent and flame retarded functionalization hydrotalcite and preparation method thereof

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Embodiment 1

[0026] Prepare 0.5mol / L Zn(NO 3 ) 2 and 0.25mol / L Al(NO 3 ) 3Aqueous solution (A); prepare urea aqueous solution (B) containing 3mol / L; mix solution (A) and solution (B) under nitrogen protection, continue magnetic sub-stirring, react for 30 hours, adopt deionized water to centrifugally wash to medium properties, and dried at 50°C for 10 hours to obtain a carbonate intercalated hydrotalcite precursor. The prepared hydrotalcite precursor and ionic liquid 1-butyl-3-methylimidazolium hexafluorophosphate (C) were added to the absolute ethanol solvent for reaction, adding 0.5 g and 3 g of ionic liquid (that is, hydrotalcite precursor 50 g / L, ionic liquid 300 g / L), the stirring speed is 2000 rpm, stirring reaction for 12 hours, standing at 50 ° C for 10 hours, centrifuged washing with absolute ethanol, and drying After 10 hours, the functionalized hydrotalcite-like ionic liquid doped with strong blue fluorescence and flame retardancy was obtained.

Embodiment 2

[0028] Prepare 1.0mol / L Co(NO 3 ) 2 and 0.3mol / L Al(NO 3 ) 3 Aqueous solution (A); prepare urea aqueous solution (B) containing 10mol / L; mix solution (A) and solution (B) under the protection of nitrogen, continue magnetic sub-stirring, react for 40 hours, adopt deionized water to centrifugally wash to medium properties, and dried at 50°C for 12 hours to obtain a carbonate intercalated hydrotalcite precursor. Add the prepared hydrotalcite precursor and ionic liquid N-octyl-pyridine hexafluorophosphate (C) into anhydrous ethanol solvent for reaction, add hydrotalcite precursor 100g / L, ionic liquid 450gL, and stir at 2000 RPM, stirring for 12 hours, standing at 50°C for 12 hours, centrifuging and washing with absolute ethanol, and drying for 10 hours to obtain functionalized hydrotalcite-like doped ionic liquid with strong blue fluorescence and flame retardancy.

Embodiment 3

[0030] Prepare 1.0mol / L Zn(NO 3 ) 2 and 0.5mol / L Al(NO 3 ) 3 Aqueous solution (A); prepare urea aqueous solution (B) containing 9mol / L; under nitrogen protection, solution (A) and solution (B) are mixed, and the magnetic sub-stirring is continued, reacted for 30 hours, and then centrifugally washed with deionized water to medium properties, and dried at 50°C for 10 hours to obtain carbonate intercalated hydrotalcite. Add the prepared hydrotalcite precursor and ionic liquid 1-ethyl-3-methylimidazolium ethyl sulfate salt (C) into anhydrous ethanol solvent for reaction, add 80gL of hydrotalcite precursor and 400g / L of ionic liquid, The stirring speed is 3000 rpm, stirring reaction for 12 hours, standing at 60°C for 10 hours, centrifugal washing with absolute ethanol, and drying for 10 hours to obtain a functionalized ionic liquid doped with strong blue fluorescence and flame retardant properties. Hydrotalcite.

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Abstract

The invention discloses a fluorescent and flame retarded functionalization hydrotalcite and a preparation method thereof. Ionic liquid is mixed with impurities and adsorbed in the layer gaps and surfaces of the hydrotalcite by virtue of the high specific surface area and the stratified structure property of the hydrotalcite, so that the functionalization hydrotalcite which has both fluorescence and flame retardancy is prepared. The functionalization hydrotalcite combines the performances of fluorescence and flame retardancy of the hydrotalcite and the ionic liquid, a blue light area of 400-500nm has strong emission peak and also has good flame retardancy. The functionalization hydrotalcite prepared by the method is simple in manufacturing and is easy to operate, the product is environment friendly, the grain size is controllable, and the hydrotalcite has good compatibility with high polymer material.

Description

(1) Technical field [0001] The invention relates to a functionalized hydrotalcite-like substance with fluorescence and flame retardancy and a preparation method thereof. (2) Background technology [0002] Light-changing agent and flame retardant are one of the important additives in the processing of synthetic polymer materials, and their functions are to make synthetic materials have light-turning properties, flame retardancy, self-extinguishing properties and smoke suppression properties. [0003] Light-transforming agents are a class of chemical substances that can convert harmful or useless ultraviolet light and green light in sunlight into red light and blue light required for photosynthesis. The currently commonly used light converting agents are mainly divided into organic dye light converting agents, inorganic salt light converting agents, and rare earth complex light converting agents. In recent years, researchers have attempted to combine organic materials with in...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08K9/04C08K3/22C08L23/12C09C1/40C09C1/22C09C3/08
Inventor 艾仕云范献忠范海殷焕顺董静张坤
Owner SHANDONG AGRICULTURAL UNIVERSITY
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