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Quantum dot composite material having dual-component substrate and preparation method thereof

A technology of composite materials and quantum dots, which is applied in the field of quantum dot composite materials with a two-component substrate and its preparation, can solve the problems of inability to prepare temperature-sensitive quantum dots, etc., and achieves the effects of strong temperature sensitivity and high luminous efficiency

Active Publication Date: 2016-03-23
宿州量彩纳米科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the existing technology cannot prepare quantum dots with very high temperature sensitivity

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] (1) According to the mass ratio of 6:9:1, the mixed phase transition temperature is 25°C at 25°C # Paraffin, styrene and ethyl orthosilicate to give a mixture;

[0035] The above mixture was added to a 500mL round-bottomed flask, stirred with sheet stainless steel, heated to 60°C in a water bath at a stirring speed of 1500 rpm, and 1 g of sodium dodecylbenzene sulfonate was added to 100 mL of water to disperse. After emulsification for 20min in a round-bottomed flask, the temperature was raised to 80°C, and the emulsification was continued for 10min at a stirring speed of 1500 rpm to obtain a uniform microemulsion, wherein the sodium dodecylbenzenesulfonate was The ratio of mass to the sum of the mass of paraffin, styrene and ethyl orthosilicate is 1:13;

[0036] After the emulsification was completed, the temperature of the water bath was adjusted to 85°C. 1 g of ammonium persulfate was dissolved in 7.5 mL of deionized water and slowly added dropwise to the round bot...

Embodiment 2

[0048] (1) According to the mass ratio of 10:15:4, the mixed phase transition temperature is 35°C at 35°C # Paraffin, styrene and ethyl orthosilicate to give a mixture;

[0049] The above mixture was added to a 500mL round-bottomed flask, stirred with sheet stainless steel, heated to 60°C in a water bath at a stirring speed of 1500 rpm, and 1 g of sodium dodecylbenzenesulfonate was added to 100 mL of deionized water. Disperse uniformly in water, add it to a round-bottomed flask to emulsify for 10 minutes, then heat up to 80 °C, and continue to emulsify for 20 minutes at a stirring speed of 1500 rpm to obtain a uniform milky white microemulsion, wherein sodium tetradecyl sulfate The ratio of the mass to the sum of the mass of paraffin, styrene and ethyl orthosilicate is 1:25;

[0050] After the emulsification was completed, the temperature of the water bath was adjusted to 85°C. 1 g of ammonium persulfate was dissolved in 7.5 mL of deionized water and slowly added dropwise to...

Embodiment 3

[0061] (1) According to the mass ratio of 8:12:2, the mixed phase transition temperature is 58 ℃ # Paraffin, styrene and ethyl orthosilicate give a mixture;

[0062]The above mixture was added to a 500mL round-bottomed flask, stirred with sheet stainless steel, heated to 65°C in a water bath at a stirring speed of 1500 rpm, and 1 g of sodium dodecyl sulfate was added to 42.5 mL of deionized water. Disperse uniformly, add it to the round-bottomed flask and emulsify for 15min, then heat up to 80°C, and continue to emulsify for 15min at a stirring speed of 1500 rpm to obtain a uniform milky white microemulsion, wherein dodecylbenzenesulfonic acid The ratio of the mass of sodium to the sum of the mass of paraffin, styrene and ethyl orthosilicate is 1:20;

[0063] After the emulsification was completed, the temperature of the water bath was adjusted to 85°C. 1 g of the initiator and catalyst ammonium persulfate were dissolved in 7.5 mL of deionized water, and slowly added dropwis...

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Abstract

The invention discloses a quantum dot composite material having a dual-component substrate and a preparation method thereof. The quantum dot composite material comprises a transmittance base material, a microcapsule layer and a quantum dot layer, the microcapsule layer is positioned on the transmittance base material, the quantum dot layer is positioned on the microcapsule layer, the microcapsule layer is formed by the microcapsules through self assembly, the quantum dot layer is formed by quantum dots through self assembly, the microcapsule comprises a shell layer and a core, the shell layer contains polystyrene and silica, and the core is paraffin. The quantum dot composite material can keep excellent properties of high luminescence efficiency and photochemical stability of common quantum dots, the illumination intensity also has a specific temperature sensitive value, and thus the quantum dot composite material can be used for associating and monitoring the specific temperature. The quantum dot composite material also has good reuse performance and no shedding of the quantum dots.

Description

technical field [0001] The present invention relates to a quantum dot composite material, more particularly, to a quantum dot composite material with a two-component base and a preparation method thereof. Background technique [0002] When the size of the material is reduced to the nanometer level, due to its nanometer effect, the material will produce many novel and unique functional properties superior to traditional materials, and has a wide range of application values ​​in microelectronics, bioengineering, chemical engineering, medicine and other fields. . [0003] In recent years, nano-luminescent materials using transition metals as activated ions have been widely used in light-emitting devices, fluorescence imaging, solar cells, The fields of fluorescence detection and biomarkers show broad application prospects. However, when quantum dots are used for light-emitting devices or fluorescence detection, in the range of 25-100 °C, the red shift of quantum dot absorptio...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09K11/02C09K11/88
CPCC09K11/025C09K11/883
Inventor 莫婉玲
Owner 宿州量彩纳米科技有限公司
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