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Quantum dot light-emitting compound used for 3D printing and preparation method thereof

A technology of quantum dot luminescence and 3D printing, applied in luminescent materials, chemical instruments and methods, etc., can solve the problems of agglomeration, strong light scattering effect, easy precipitation of phosphors and polymer colloids, etc., to achieve the effect of enhancing luminous intensity

Active Publication Date: 2016-05-25
MAANSHAN LANXIN ENVIRONMENTAL PROTECTION TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the polymer colloid doped with phosphor has the following problems: 1) The phosphor particles are large, and the phosphor and the polymer colloid are easily precipitated and agglomerated when mixed, resulting in uneven distribution of the phosphor in the polyme

Method used

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  • Quantum dot light-emitting compound used for 3D printing and preparation method thereof
  • Quantum dot light-emitting compound used for 3D printing and preparation method thereof
  • Quantum dot light-emitting compound used for 3D printing and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0027] Example 1

[0028] 1) Evenly mix nano-titanium dioxide, ethanol and CdZnS / ZnS quantum dots, after mixing, dry at 60° C. for 6 hours until ethanol is completely volatilized, wherein the CdZnS / ZnS quantum dots are 20 parts by mass, the nano-titanium dioxide is 10 parts by mass, and the ethanol is Excessive amount to make the nano-titania and CdZnS / ZnS quantum dots mix evenly;

[0029] 2) Put ABS resin, PLA resin, 1) the obtained mixture and benzoyl peroxide into a twin-screw extruder for melting, uniformly mix and then extrude, naturally cool, and pelletize to obtain a quanta for 3D printing. The point light-emitting compound, wherein the ABS resin is 40 parts by mass, the PLA resin is 45 parts by mass, the benzoyl peroxide is 1.3 parts by mass, the extrusion temperature is 190° C., and the screw speed is 220 rpm.

[0030] Test the emission spectrum of the quantum dot luminescent complex obtained in Example 1 according to the above test method: under the excitation of bl...

Example Embodiment

[0031] Example 2

[0032] Example 2 does not add inorganic nano-titanium dioxide compared to Example, namely:

[0033] 1) Evenly mix ethanol and CdZnS / ZnS quantum dots, and after mixing, dry at 60° C. for 6 hours until ethanol is completely volatilized, wherein the CdZnS / ZnS quantum dots are 20 parts by mass, and the amount of ethanol is excessive so that the CdZnS / ZnS quantum dots are mixed distributed;

[0034] 2) Put ABS resin, PLA resin, 1) the obtained mixture and benzoyl peroxide into a twin-screw extruder for melting, uniformly mix and then extrude, naturally cool, and pelletize to obtain a quanta for 3D printing. The point light-emitting compound, wherein the ABS resin is 40 parts by mass, the PLA resin is 45 parts by mass, the benzoyl peroxide is 1.3 parts by mass, the extrusion temperature is 190° C., and the screw speed is 220 rpm.

[0035] Test the emission spectrum of the oil-soluble quantum dot luminescent complex obtained in Example 2 according to the above-me...

Example Embodiment

[0036] Example 3

[0037] 1) Mix the nano-titanium dioxide, ethanol and CdSeS quantum dots uniformly, and dry at 70° C. for 6 hours after mixing until the ethanol is completely volatilized, wherein the CdSeS quantum dots are 35 parts by mass, the nano-titanium dioxide is 25 parts by mass, and the amount of ethanol is excessive so that the The inorganic matter and CdSeS quantum dots are mixed evenly;

[0038] 2) Put ABS resin, PLA resin, 1) the obtained mixture and dicumyl peroxide into a twin-screw extruder for melting, uniformly mix and extrude, naturally cool, and pelletize to obtain a 3D printing material. The quantum dot light-emitting compound, wherein the ABS resin is 45 parts by mass, the PLA resin is 47 parts by mass, the dicumyl peroxide is 1.9 parts by mass, the extrusion temperature is 180° C., and the screw speed is 220 rpm, that is, to obtain Quantum dot luminescent complexes for 3D printing.

[0039] Test the emission spectrum of the quantum dot luminescent com...

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Abstract

The invention discloses a quantum dot light-emitting compound used for 3D printing and a preparation method thereof, and belongs to the technical field of nanometer light-emitting materials. The quantum dot light-emitting compound is prepared from, by mass, 85-120 parts of polymer colloid, 10-80 parts of inorganic matter, 1-3 parts of cross-linking agent and 20-80 parts of oil-soluble quantum dots. Compared with the prior art, the oil-soluble quantum dots, the polymer colloid, the cross-linking agent and the inorganic matter (nanometer titanium dioxide or nanometer silicon dioxide) are mixed; the sizes, at the three dimensions, of the oil-soluble quantum dots are generally smaller than 10 nm; compared with fluorescent powder, scattering generated by the oil-soluble quantum dots is very small, no agglomeration happens to the quantum dots in a printed light-emitting body after the quantum dot light-emitting compound is used for printing, and therefore the oil-soluble quantum dots do not deposit in the polymer colloid.

Description

technical field [0001] The invention belongs to the technical field of nano-luminescent materials, and in particular relates to a quantum dot luminescent compound for 3D printing, a preparation method and an application thereof. Background technique [0002] 3D printing technology is a widely used rapid prototyping technology for materials without margin. It has been applied to the preparation of complex parts of metal, resin, ceramics and other materials. It can quickly and precisely manufacture any Prototypes of new products with complex shapes. White light LED is a new type of semiconductor solid-state lighting source. The mainstream technology of commercial white light LED is made of blue chip + yellow phosphor powder. At present, there are some public patents that mix phosphor powder and polymer colloid in a certain proportion. into polymer colloid doped with fluorescent powder, and print with the polymer colloid doped with phosphor powder through the nozzle. However,...

Claims

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Application Information

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IPC IPC(8): C09K11/02C09K11/56C09K11/88
CPCC09K11/025C09K11/0811C09K11/88C09K11/883
Inventor 李蕊毛智勇王延泽宋维伟王中恺
Owner MAANSHAN LANXIN ENVIRONMENTAL PROTECTION TECH CO LTD
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