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A kind of luminous composite material and preparation method thereof

A technology of composite materials and synthetic rubber, which is applied in the direction of luminescent materials, chemical instruments and methods, etc., can solve the problems such as the influence of the fluorescence stability of silicon nanocrystals, and achieve the effects of increased fluorescence duration and good biocompatibility

Active Publication Date: 2016-05-25
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to solve the problem that the fluorescence stability of silicon nanocrystals is affected, and to provide a light-emitting composite material

Method used

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  • A kind of luminous composite material and preparation method thereof
  • A kind of luminous composite material and preparation method thereof
  • A kind of luminous composite material and preparation method thereof

Examples

Experimental program
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preparation example Construction

[0025] The present invention also provides a method for preparing a light-emitting composite material, the method comprising: (1) mixing a dispersion liquid formed of silicon nanocrystals and a first organic solvent with an organic solution in which synthetic rubber is dissolved to obtain a mixture; (2) removing the first organic solvent and the second organic solvent dissolving the synthetic rubber in the mixture; the weight ratio of the synthetic rubber to the silicon nanocrystal is 10-200:1, the first organic solvent and the second organic solvent The two organic solvents are the same or different.

[0026] According to the above method of the present invention, not only the silicon nanocrystals can be well dispersed in the synthetic rubber, but the silicon nanocrystals are not damaged, and at the same time, the original main properties of the synthetic rubber are not affected. The mixing can be, for example, general stirring and mixing, which is enough to realize the unifo...

preparation example

[0051] This preparation example is used to illustrate the preparation method of the dispersion liquid formed by silicon nanocrystals and the first organic solvent of the present invention.

[0052] According to "HSiO 1.5 The effect of sol-gel polymeric structure and composition on the size and luminescent properties of silicon nanocrystals" (InfluenceofHSiO 1.5 Sol-Gel Polymer Structure and Composition on the Size and Luminescent Properties of Silicon Nanocrystals, Chem. Mater. 2009, 21, 5426-5434) improved preparation method provided.

[0053] (1) Add 1.42ml of HSiCl 3 (density 1.37g / ml) into a round-bottomed flask, cooled with acetone-dry ice, and magnetically stirred. HSiCl 3 The temperature was lowered to 0°C, and 4.2 ml of deionized water was quickly added thereto and stirred. Reacted for 30 minutes to ensure complete hydrolysis, then isolated the product under reduced pressure and dried under vacuum to obtain a white solid product;

[0054] (2) Place the white solid...

Embodiment 1

[0060] This example is used to illustrate the preparation method of the luminescent composite material of the present invention.

[0061] (1) Dissolve 5g of butadiene-styrene copolymer (produced by Sinopec, brand SSBRY031, number average molecular weight is 183,000, butadiene content is 73% by weight) in 50ml of cyclohexane to obtain dissolved butadiene- Cyclohexane of styrene copolymers;

[0062] (2) Add 10ml of Si-1 to 10ml of the cyclohexane dissolved in the butadiene-styrene copolymer obtained in (1) and mix, the mixing temperature is 25°C, and the stirring time is 60 minutes to obtain the mixture M-1;

[0063] (3) Place M-1 in a fume hood to ventilate and volatilize the n-hexane and cyclohexane in M-1 to obtain the luminescent composite material F-1.

[0064] The weight ratio of butadiene-styrene copolymer to silicon nanocrystals in F-1 was calculated based on the amount of feed to be 10:1.

[0065] F-1 is subjected to infrared spectroscopic analysis, and its FTIR spect...

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Abstract

The invention discloses a luminescent composite material. The luminescent composite material comprises synthetic rubber and a substance having a fluorescence characteristic, and is characterized in that: the substance having a fluorescence characteristic is a silicon nano crystal, and the weight ratio of the synthetic rubber to the silicon nano crystal is (10-200):1. The invention also discloses a preparation method of the luminescent composite material. The luminescent composite material prepared by the preparation method is capable of maintaining the luminescence stability, and is non-toxic.

Description

technical field [0001] The invention relates to a luminescent composite material and a preparation method thereof. Background technique [0002] With the continuous development of material science, the application fields of current polymers are constantly expanding. The demand for some polymer materials with special properties is also increasing, such as light-emitting polymers. Luminescent polymers have potential applications in road signs, luminescent coatings, and rubber industries. Usually fluorescent polymers are realized by introducing organic small molecular fluorescent compounds containing π-bond conjugated structures into polymer side chains, chain ends or by polymerizing fluorescent functional monomers. However, the currently used small molecular fluorescent compounds with fluorescent properties are often highly toxic, and they are likely to cause damage to the human body and pollute the environment during the synthesis and use of materials. [0003] In recent y...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L23/16C08L25/10C08L9/00C08K7/06C09K11/59
CPCC08K3/02C08K2003/023C08K2201/011C08L9/00C08L9/06C08L23/16C09K11/59
Inventor 毕海鹏关敏曲亮靓李传清于国柱
Owner CHINA PETROLEUM & CHEM CORP