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Flexible heat-resistant ultraviolet-aging-resistant high-efficiency light-emitting high polymer material and preparation method thereof

A polymer material and UV-resistant technology, applied in the field of polymer materials, can solve problems such as material aging, chemical bond destruction, and material performance degradation

Active Publication Date: 2021-05-28
QINGDAO UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although ultraviolet radiation makes up only a small fraction of the sun's electromagnetic radiation, its high photon energy can break chemical bonds and degrade the properties of materials
In addition, the material will also be damaged by ultraviolet radiation and other environments in actual use, resulting in material aging

Method used

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  • Flexible heat-resistant ultraviolet-aging-resistant high-efficiency light-emitting high polymer material and preparation method thereof
  • Flexible heat-resistant ultraviolet-aging-resistant high-efficiency light-emitting high polymer material and preparation method thereof
  • Flexible heat-resistant ultraviolet-aging-resistant high-efficiency light-emitting high polymer material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Disperse 0.2g of carbon nanotubes (CNTs) in 35ml of concentrated sulfuric acid, and sonicate for 10-20 hours. Then add potassium permanganate (KMnO 4 ), 0.20g each time, stirring at intervals of 10min each time. The mixed solution was heated to 50° C. in a water bath, kept warm and stirred for 1 h. Prepare 0.3% hydrogen peroxide aqueous solution and freeze into ice cubes. Pour the insulated mixed solution into a beaker filled with ice cubes of hydrogen peroxide. If gas occurs, add 0.2ml of 30% hydrogen peroxide solution again, and repeat this process until no bubbles appear. Obtain uCNTs dispersion. The uCNTs dispersion was centrifuged and washed with distilled water until the pH value was 4-7, and then dried to obtain unzipped carbon nanotubes (uCNTs).

[0025] Disperse 10mg uCNTs in 20ml ethanol at 50°C, add 400μL 0.1mol / L phen solution, 400μL 0.1mol / L EuCl3 solution and 400μL 0.3mol / L TTA solution, then adjust the pH value to 6-7 with dilute ammonia , stirred fo...

Embodiment 2

[0029] Disperse 10mg of CNTs in 20ml of ethanol at 50°C, add 400μL of 0.1mol / L phen solution, 400μL of 0.1mol / L EuCl3 solution and 400μL of 0.3mol / L TTA solution, and then adjust the pH value to 6-7 with dilute ammonia water , stirred for 2h. After filtration, washing and drying, the luminescent nanomaterial Eu@CNTs was obtained.

[0030]Firstly, 0.01 g of luminescent nanomaterial Eu@CNTs was dispersed in 10 ml of acetone solution, and then 10 g of cyanate resin monomer was added and mixed and stirred at 100 °C until completely dissolved to obtain a uniformly mixed Eu@CNTs / CE solution. The mass ratio of the luminescent nanometer material in the cyanate resin is 0.1%. Pour the mixture into a shallow dish lined with release paper, dry for 24 hours, and remove embedded air bubbles in a vacuum oven at 130°C for 30 minutes. Then the mixture is poured into the mold, cured at 160°C / 2h+180°C / 2h+200°C / 2h and post-cured above 200°C. Finally, the cured resin was demolded and coded as ...

Embodiment 3

[0032] In 20ml ethanol solution, add 1ml 0.1mol / L Phen solution respectively, then add 1ml 0.1mol / LEuCl 3 solution and 1ml 0.3mol / L TTA solution, stirred for 2h, then filtered, washed and dried to obtain Eu complex powder.

[0033] First, disperse 0.01g of fluorescent nanomaterial Eu complex in 10ml of acetone solution, then add 10g of cyanate resin monomer and mix thoroughly at 100°C until completely dissolved to obtain a uniformly mixed Eu / CE solution. The mass ratio of the luminescent nanometer material in the cyanate resin is 0.1%. Pour the mixture into a shallow pan lined with release paper, dry in an oven at 80°C for 24 hours to remove the solvent, and dry in a vacuum oven at 130°C for 30 minutes to remove embedded air bubbles. Then the mixture is poured into the mold, cured at 160°C / 2h+180°C / 2h+200°C / 2h and post-cured above 200°C. Finally, the cured resin is demolded to obtain a hybrid material of Eu complex and cyanate resin. The Eu complex / CE hybrid material sample...

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Abstract

The invention discloses a flexible heat-resistant ultraviolet-aging-resistant efficient light-emitting high polymer material and a preparation method thereof, and the preparation method comprises the following steps: (1) performing oxidation unzipping on a carbon nano tube, and longitudinally tearing and cutting to open the wall of the carbon nano tube to obtain an unzipped carbon nano tube; (2) adding a phen solution, an EuCl3 solution and a TTA solution into the unzipped carbon nanotubes for compounding, and obtaining the luminescent nano material Eu@uCNTs; and (3) adding the Eu@uCNTs luminescent nano material into a cyanate resin monomer, uniformly stirring, pouring into a mold, and carrying out gradient heating curing-obtain the polycyanate hybrid luminescent composite material. According to the invention, based on the heat resistance and chemical reagent resistance of cyanate ester, the preparation of the heat-resistant and ultraviolet-aging-resistant high-efficiency luminescent high polymer material is realized by combining with a longitudinal unzipping carbon nanotube luminescent technology. It can be foreseen that the high-temperature-resistant and ultraviolet-aging-resistant polymer hybrid luminescent material will be widely applied to the fields of sensing, detection, hazard prediction and the like.

Description

technical field [0001] The invention relates to the technical field of polymer materials, in particular to a flexible, heat-resistant, ultraviolet-resistant and aging-resistant high-efficiency luminous polymer material and a preparation method thereof. Background technique [0002] Cyanate ester (CE) resin is a high-performance thermosetting polymer with excellent dimensional stability, high heat resistance, and excellent processability. It is widely used in the packaging of electronic devices, high temperature adhesives, and aerospace materials. However, like other thermoset materials, cyanate ester resins have a high crosslink density, making them relatively poor in toughness. [0003] Cyanate ester resins are commonly used in aerospace applications, and in Earth orbit, the total solar radiation is 1353W / m 2 , of which ultraviolet radiation accounts for about 8.7% (118W / m 2 ). While ultraviolet radiation makes up only a small fraction of the sun's electromagnetic radia...

Claims

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Application Information

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IPC IPC(8): C08L79/04C08K9/02C08K3/04C08K5/00
CPCC08K9/02C08K3/041C08K5/0091C08K2201/011C08L2201/08C08L79/04
Inventor 唐建国杨娜王瑶巩学忠毛遂沈文飞黄林军王世超胡子瑶杨迪陈梦瑶齐晓华张文娜张立秀亚历山大·法恩来布
Owner QINGDAO UNIV
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