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Preparation method of 3D printing material capable of spontaneously emitting red light

A 3D printing and red light technology, applied in the field of 3D printing materials, can solve the problems of high printing cost, affecting the marketization of 3D printing technology, and shortage of printing materials.

Active Publication Date: 2020-07-03
JIANGNAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] 3D printing technology, which is very popular and concerned by the public, is expensive due to the shortage of printing materials and the difficulty of preparation, which seriously affects the further marketization of 3D printing technology, which also confuses manufacturers

Method used

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  • Preparation method of 3D printing material capable of spontaneously emitting red light
  • Preparation method of 3D printing material capable of spontaneously emitting red light
  • Preparation method of 3D printing material capable of spontaneously emitting red light

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] (1) Preparation of light-converting agent / red-emitting fluorescent material composite: prepare titanate coupling agent, absolute ethanol, light-converting agent with xanthracene structure and red-emitting fluorescent material (SrAl 2 o 4 :Eu 2+ , Dy 3+ ) mixture, heated to 70°C in a closed and high-speed dispersion state, reacted for 40 minutes, filtered after the reaction, and fully washed with absolute ethanol, dried, and pulverized to obtain a light conversion agent / red fluorescent material composite; The preparation of the light conversion agent / red-emitting fluorescent material compound is an existing technology, and the existing ratio and operating parameters can be used. For example, the light conversion agent / red-emitting fluorescent material is prepared by using the data disclosed in the patent CN201610134614.8 Complex;

[0025] (2) Grinding and screening of the light conversion agent / red-emitting fluorescent material compound: the prepared light-converting ...

Embodiment 2

[0030] (1) Preparation of photoconverter / red-emitting fluorescent material composite: titanate coupling agent, absolute ethanol, light-converting agent with anthracene structure and red-emitting fluorescent material (SrAl 2 o 4 :Eu 2+ , Dy 3+ ) mixture, heated to 80°C in a closed and high-speed dispersion state, reacted for 50 minutes, filtered after the reaction, and fully washed with absolute ethanol, dried, and pulverized to obtain a light conversion agent / red fluorescent material composite;

[0031] (2) Grinding and screening of the light conversion agent / red-emitting fluorescent material compound: the prepared light-converting agent / red-emitting fluorescent material compound was pulverized by mechanical grinding and jet milling to prepare a particle size of 10um left and right powder;

[0032](3) Preparation of self-emitting red 3D printing material masterbatch: TPE (thermoplastic elastomer) powder must be dried in a vacuum oven at 100°C for 3 hours before use. After d...

Embodiment 3

[0036] (1) Preparation of photoconverter / red-emitting fluorescent material composite: titanate coupling agent, absolute ethanol, light-converting agent with anthracene structure and red-emitting fluorescent material (SrAl 2 o 4 :Eu 2+ , Dy 3+ ) mixture, heated to 80°C in a closed and high-speed dispersion state, reacted for 55 minutes, filtered after the reaction, and fully washed with absolute ethanol, dried, and pulverized to obtain a light conversion agent / red fluorescent material composite;

[0037] (2) Grinding and screening of the light conversion agent / red-emitting fluorescent material compound: the prepared light-converting agent / red-emitting fluorescent material compound was pulverized by mechanical grinding and jet milling to prepare a particle size of 10um left and right powder;

[0038] (3) Preparation of 3D printing material masterbatch that emits red light: TPE (thermoplastic elastomer) powder must be dried in a vacuum oven at 100°C for 2.5 hours before use. ...

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Abstract

The invention relates to a preparation method of a 3D printing material capable of autonomously giving out red light. The preparation method is characterized by comprising the following steps: (1) preparing a light conversion agent / red-light-emitting fluorescent material compound, and carrying out crushing to obtain powder; (2) premixing dried TPE masterbatch with the powder of the light conversion agent / red-light-emitting fluorescent material compound so as to obtain a raw material of the 3D printing material capable of autonomously giving out red light, wherein the adding mass ratio of the powder of the light conversion agent / red-light-emitting fluorescent material compound is 20-30%; (3) drying the raw material of the 3D printing material capable of autonomously giving out red light, and preparing spinning light-emitting masterbatch through melt granulation by adopting a double-screw extruder, wherein the screw temperature is 180-220 DEG C and the screw rotating speed is 200-600 r / min; and (4) uniformly mixing the TPE masterbatch with the spinning light-emitting masterbatch, carrying out melt manufacturing after drying, and carrying out extrusion and drafting so as to prepare the 3D printing material capable of autonomously giving out red light, wherein the adding mass ratio of the spinning light-emitting masterbatch is 10-20% and the melt temperature is 220-240 DEG C. By adoption of the preparation method provided by the invention, the long-persistence 3D printing material capable of autonomously giving out red light can be obtained.

Description

technical field [0001] The invention relates to a preparation method of a 3D printing material capable of emitting red light, and belongs to the technical field of 3D printing materials. Background technique [0002] 3D printing technology (also known as 3D rapid prototyping technology or additive manufacturing technology) is a new type of manufacturing technology that began to emerge in the late 1980s! It refers to the computer-aided design (CAD) model of objects under computer control. Or computed tomography (CT) data, through the 3D accumulation of materials, a new digital molding technology for rapidly manufacturing 3D objects of arbitrary complex shapes. Its basic principle is "layered manufacturing, layer by layer superposition", which divides a 3D three-dimensional part model completed in computer aided design (CAD) or tomographic scanning (CT) into sections of specific thickness along a certain coordinate axis in space , and then printed out layer by layer through t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B29C48/00B29C48/05B29C48/17B29C48/92C08L101/00C08K3/22C08J3/22B33Y70/10
CPCB29C48/0018B29C48/05B29C48/16B29C48/92B29C2948/9259B29C2948/92704B29C2948/92885B33Y70/00C08J3/226C08J2400/22C08K2003/2227
Inventor 朱亚楠逄增媛沈修宇葛明桥
Owner JIANGNAN UNIV
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