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Preparation method and applications of nanocomposite material with infrared absorption function

A composite material and functional nanotechnology, which is applied in radiation-absorbing coatings, chemical instruments and methods, and other chemical processes, can solve the problems of poor absorption effect of multi-band wide-screen bands, and achieve excellent infrared absorption function and long-term stability. Effect

Active Publication Date: 2014-05-21
江苏麦阁吸附剂有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The present invention overcomes the disadvantages of multi-band and wide-band band absorption of infrared absorbing materials in the prior art, and provides a method for preparing an infrared absorbing functional nanocomposite material

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] Ultrasonic dispersion of tetrakis(p-carboxyphenyl)zinc porphyrin in methanol yielded solution A with a concentration of 4 × 10 -5 mol / mL; ultrasonically disperse graphene oxide in methanol to obtain solution B with a concentration of 0.1mg / mL; slowly add 1 part of solution B to 1.5 parts of solution A, and keep stirring. Clarify the upper layer solution, centrifuge, wash the precipitate with methanol, wash with water, and vacuum dry; add the above vacuum dried precipitate to distilled water for stirring, and ultrasonically disperse to prepare solution C with a concentration of 0.5 mg / mL, and add to solution C Equal volume of reducing agent ethylene glycol, ultrasonication, reaction at 150° C. for 5 hours, cooling to room temperature, centrifugation, washing with water, and vacuum drying, to prepare infrared-absorbing functional nanocomposites. Using the Avatar360 Fourier transform infrared spectrometer produced by Nicolet Company of the United States to test the infrare...

Embodiment 2

[0020] Tetrakis(p-carboxyphenyl)copper porphyrin was ultrasonically dispersed in dimethylformamide to obtain solution A with a concentration of 4×10 -4 mol / mL; ultrasonically disperse graphene oxide in dimethylformamide to obtain solution B with a concentration of 0.2 mg / mL; slowly add 1 part of solution B to 2 parts of solution A, and keep stirring until it is completely added Afterwards, vibrate and sonicate until the upper layer solution is clarified, centrifuge, wash the precipitate with dimethylformamide, wash with water, and dry in vacuum; add the above-mentioned vacuum-dried precipitate to distilled water for stirring, and ultrasonically disperse to prepare solution C with a concentration of 1mg / mL, add reducing agent glucose equal to the mass of the precipitate to the solution C, adjust the pH to 8, sonicate, react at 90°C for 5h, cool to room temperature, centrifuge, wash with water, and dry in vacuum to prepare infrared absorbing functional nanocomposites. Using the...

Embodiment 3

[0022] Ultrasonic dispersion of tetrakis(p-aminophenyl)magnesium porphyrin in dichloromethane gave solution A with a concentration of 9 × 10 -5 mol / mL; ultrasonically disperse graphene oxide in dichloromethane to obtain solution B with a concentration of 0.15 mg / mL; slowly add 1 part of solution B to 1.8 parts of solution A, keep stirring, and shake after complete addition , sonicate until the upper layer solution is clarified, centrifuge, wash the precipitate with dichloromethane, wash with water, and dry in vacuum; add the above-mentioned vacuum-dried precipitate to distilled water for stirring, and ultrasonically disperse to prepare solution C with a concentration of 0.75 mg / mL. Add reducing agent glucose equal to the mass of the precipitate to solution C, adjust the pH to 8, sonicate, react at 90°C for 5 hours, cool to room temperature, centrifuge, wash with water, and dry in vacuum to prepare an infrared-absorbing functional nanocomposite. Using the Avatar360 Fourier tran...

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Abstract

The invention provides a preparation method and applications of a nanocomposite material with an infrared absorption function. According to the technical scheme, the preparation method comprises the steps: (1) ultrasonically dispersing a porphyrin compound into a solvent, to obtain a solution A; (2) ultrasonically dispersing graphene oxide in the solvent, to obtain a solution B; (3) adding the solution B into the solution A, continuously stirring, performing oscillation and ultrasonic treatment until an upper-layer solution is clear, centrifuging, washing with a precipitating solvent, and performing vacuum drying; and (4) dispersing the precipitating distilled water subjected to vacuum drying in the step (3), then reducing through a reductant, cooling, centrifuging, washing, and performing vacuum drying, thus obtaining the nanocomposite material. The porphyrin compound and graphene oxide are combined and then reduced to obtain a porphyrin / reduced graphene oxide composite material, tests proved that the composite material can achieve multiband and wideband absorption effect on infrared rays, has excellent infrared absorption function and long-time stability; and the material is conveniently applied in a coating, and the infrared absorption waveband can be further increased through the synergistic effect of components.

Description

technical field [0001] The invention relates to a preparation method of a composite material and its application, in particular to a preparation method of an infrared-absorbing functional nano-composite material and its application in coatings. Background technique [0002] Infrared is an invisible ray, between visible light and microwave, with a wavelength range of about 0.75-1000μm, which is divided into three parts: "near infrared", "middle infrared" and "far infrared". When one, two or three of the three energies that constitute the internal energy of the molecule (the energy of the electrons outside the nucleus, the vibration energy of the atom and the rotational energy of the molecule) simultaneously undergo quantum transitions, infrared rays will be radiated outward. Due to the difference in energy transition, they radiate near-infrared rays, mid-infrared rays and far-infrared rays respectively. In spectroscopy, according to the different mechanisms of infrared radia...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09K3/00C09D5/32C09D7/12
Inventor 万怀新纪俊玲蒋海华汪媛汪信
Owner 江苏麦阁吸附剂有限公司
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