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A polylactic acid composite material with aggregation-induced luminescent effect, polylactic acid 3D printing material and preparation method thereof

A technology of aggregation-induced luminescence and 3D printing, applied in additive processing and other directions, which can solve the problems of weak luminescence intensity, poor interface compatibility between phosphors and polylactic acid matrix, etc.

Active Publication Date: 2021-08-20
SOUTH CHINA AGRI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to solve the problems of poor interfacial compatibility between fluorescent powder and polylactic acid matrix and weak luminous intensity in current fluorescent polylactic acid composite materials, the present invention provides an aggregation-induced luminescent effect by relatively simple processing of AIE material and polylactic acid. Polylactic acid composite material

Method used

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  • A polylactic acid composite material with aggregation-induced luminescent effect, polylactic acid 3D printing material and preparation method thereof
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  • A polylactic acid composite material with aggregation-induced luminescent effect, polylactic acid 3D printing material and preparation method thereof

Examples

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Effect test

Embodiment 1

[0039] In this example, the polylactic acid 3D printing material with aggregation-induced luminescent effect is prepared by the following method:

[0040] (1) Soak polylactic acid particles in a closed container filled with dichloromethane, and stir at room temperature at 150rpm until completely dissolved, wherein the mass volume ratio of polylactic acid and dichloromethane is 1:10;

[0041] (2) Add tetraphenylethylene (TPE) powder to the mixed solution in step (1), and stir at 200rpm at room temperature for 0.5h; the mass ratio of tetraphenylethylene (TPE) powder to polylactic acid particles is 1:1;

[0042] (3) Pour the mixed solution obtained in step (2) into an open container, and dry it in an oven at 60°C for 20 hours to obtain a polylactic acid composite material with block AIE effect;

[0043] (4) Put the massive AIE effect polylactic acid composite material obtained in step (3) in a high-speed pulverizer, and pulverize it for 4 minutes to obtain the polylactic acid com...

Embodiment 2

[0050] In this example, the polylactic acid 3D printing material with aggregation-induced luminescent effect is prepared by the following method:

[0051] (1) Soak polylactic acid particles in a closed container filled with dichloromethane, and stir at room temperature at 150rpm until completely dissolved, wherein the mass volume ratio of polylactic acid and dichloromethane is 1:10;

[0052] (2) Add tetraphenylethylene (TPE) powder to the mixed solution in step (1), and stir at 200rpm at room temperature for 0.5h; the mass ratio of tetraphenylethylene (TPE) powder to polylactic acid particles is 3:1;

[0053] (3) Pour the mixed solution obtained in step (2) into an open container, and dry it in an oven at 60°C for 20 hours to obtain a polylactic acid composite material with block AIE effect;

[0054] (4) Put the massive AIE effect polylactic acid composite material obtained in step (3) in a high-speed pulverizer, and pulverize it for 4 minutes to obtain the polylactic acid com...

Embodiment 3

[0058] In this example, the polylactic acid 3D printing material with aggregation-induced luminescent effect is prepared by the following method:

[0059] (1) Soak polylactic acid particles in a closed container filled with dichloromethane, and stir at room temperature at 150rpm until completely dissolved, wherein the mass volume ratio of polylactic acid and dichloromethane is 1:10;

[0060] (2) Add tetraphenylethylene (TPE) powder to the mixed solution in step (1), and stir at 200rpm at room temperature for 0.5h; the mass ratio of tetraphenylethylene (TPE) powder to polylactic acid particles is 5:1;

[0061] (3) Pour the mixed solution obtained in step (2) into an open container, and dry it in an oven at 60°C for 20 hours to obtain a polylactic acid composite material with block AIE effect;

[0062] (4) Put the massive AIE effect polylactic acid composite material obtained in step (3) in a high-speed pulverizer, and pulverize it for 4 minutes to obtain the polylactic acid com...

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Abstract

The invention belongs to the technical field of organic luminescent materials and fused deposition molding 3D printing materials, and relates to a polylactic acid composite material with aggregation-induced luminescent effect, which is prepared from the following raw materials: weight ratio of aggregation-induced luminescent material, polylactic acid and organic solvent It is (1‑10): 1: (10‑20), which can solve the problems of poor interfacial compatibility between phosphor powder and polylactic acid matrix and weak luminous intensity in fluorescent polylactic acid composite materials. It also relates to a polylactic acid 3D printing material with an aggregation-induced luminescence effect, comprising a polylactic acid composite material with an aggregation-induced luminescence effect, an antioxidant, a lubricant and a polylactic acid masterbatch, which can effectively overcome the poor mechanical properties of the polylactic acid 3D printing material , the problem of single function, and at the same time solve the problem of aggregation fluorescence quenching effect of current fluorescent luminescent 3D printing materials, the preparation process is simple, green and environmentally friendly, and the material emits strong fluorescence under ultraviolet light.

Description

technical field [0001] The invention belongs to the technical field of organic luminescent materials and fused deposition molding 3D printing materials, and specifically relates to a polylactic acid composite material with an aggregation-induced luminescence effect, a polylactic acid 3D printing material and a preparation method thereof. Background technique [0002] In recent years, in order to prepare luminescent 3D printing materials, organic fluorescent dyes and phosphors are usually doped with polymers. For example, Chinese patent CN 109880323 A proposes a 3D printing composite material containing organic fluorescent dyes. The organic fluorescent dyes are dissolved in organic solvents and then applied to the printed parts to obtain polylactic acid 3D printing filaments dyed with organic fluorescent dyes; Finally, the wire is printed by a fused deposition modeling (FDM) 3D printer to obtain a 3D printed object containing organic fluorescent dyes. However, this fluoresce...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L67/04C08K5/01C08K5/134C08K5/526C08K5/101B33Y70/10
CPCB33Y70/10C08K5/01C08K5/101C08K5/1345C08K5/526C08L67/04
Inventor 董先明杨飞文郭晓宇黄咏仪肖嘉林周武艺罗颖
Owner SOUTH CHINA AGRI UNIV
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