Triple curing material for DLP (Digital Light Processing) type 3D printing and preparation method and application thereof

A 3D printing and triple curing technology, which is applied in the field of 3D printing materials, can solve the problems of high equipment requirements and cost, potential safety hazards, and reduced laser power, and achieve good complementarity and synergy, reduced preparation costs, and excellent physical properties. Effect

Active Publication Date: 2017-01-25
WUXI CITY CASHEW NEW MATERIALS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The above-mentioned SLA-type 3D printing usually requires ultraviolet light intensity energy in the range of 200-600mw/cm 2 , while dental-related 3D printing is mainly based on DLP (digital projection molding), and the intensity and energy of ultraviolet light are between 8 and 20mw/cm 2 , which limits the application of existing domestic printing materials in dentistry
[0004] Chinese patent CN105462134A "Multiple curing and enhanced 3D printing material and its manufacturing method" discloses a 3D printing material that can simultaneously undergo three curing reactions of UV light/moisture/cation, and can be rapidly prototyped at one time, but this material does not It is suitable for DLP 3D printing in dentistry. For example: the unique ultraviolet light conditions of DLP 3D printing cannot ach

Method used

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  • Triple curing material for DLP (Digital Light Processing) type 3D printing and preparation method and application thereof
  • Triple curing material for DLP (Digital Light Processing) type 3D printing and preparation method and application thereof
  • Triple curing material for DLP (Digital Light Processing) type 3D printing and preparation method and application thereof

Examples

Experimental program
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Effect test

Example Embodiment

[0025] Example 1

[0026] (1) 5 parts of 2-hydroxy-3-phenoxypropyl acrylate, 6 parts of fatty acid modified epoxy diacrylate and 20 parts of bis((3,4-epoxycyclohexyl)methyl)adipic acid The ester is put into the reaction tank and mixed, and stirred for 30 minutes at a rotation speed of 600 rpm to obtain a pre-mixed material; in this step, the operating temperature is controlled at 5 to 55°C.

[0027] (2) Add 25 parts of hexafunctional aliphatic modified urethane acrylate and 10 parts of difunctional oxetane to the premix. After mixing, add 3 parts of rubber structure modifier for epoxy resin to 650 Stir for 15 minutes at the speed of rotation per minute; from the addition of the hexafunctional aliphatic modified polyurethane acrylate to the end of the packaging, the stirring tank needs to be covered and protected with compressed air that fully removes water vapor to minimize the contact time between the paint and water vapor ; After stirring, confirm the viscosity of the mixture, a...

Example Embodiment

[0030] Example 2

[0031] The same operation steps as in Example 1, step (1) stirring speed 550 rpm, stirring time 35 minutes, control operating temperature 5 ~ 55 ℃; step (2) stirring speed 700 rpm, stirring time 10 minutes, control operating temperature 5~55°C; step (3) stirring speed 800 rpm, stirring time 10 minutes, control operating temperature 5~55°C; step (4) filtering through 80 mesh steel wire filter.

Example Embodiment

[0032] Example 3

[0033] The same operation steps as in Example 1, step (1) stirring speed 650 rpm, stirring time 25 minutes, control operating temperature 5~55°C; step (2) stirring speed 650 rpm, stirring time 12 minutes, control operating temperature 5~55°C; step (3) the stirring speed is 1000 rpm, the stirring time is 12 minutes, and the operating temperature is controlled at 5~55°C; step (4) is filtered through an 80 mesh steel wire filter.

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Abstract

The invention discloses a triple curing material for DLP (Digital Light Processing) type 3D printing. The material is prepared from the following components in parts by weight: 5-10 parts of 2-hydroxy-3-phenoxypropyl acrylate, 2-6 parts of fatty acid modified epoxy diacrylate, 20-40 parts of bis((3,4-epoxycyclohexyl)methyl)adipate, 15-25 parts of hexafunctional aliphatic series modified urethane acrylate, 10-15 parts of bifunctional oxetane, 1-3 parts of a rubber structure modifier for epoxy resin, 2-10 parts of fumed silica, 2-10 parts of nano aluminum oxide, 20-40 parts of moisture curing type acrylic resin and 2-10 parts of 1,4-butanediol diglycidyl ether. When the triple curing material is applied to dental 3D printing, step-by-step efficient curing can be realized, and a high-ductility, high-strength and low-cost dental ceramic-like material can be prepared.

Description

technical field [0001] The invention belongs to the technical field of 3D printing materials, and in particular relates to a DLP type 3D printing triple curing material and a preparation method thereof, as well as the application of the material in dental 3D printing. Background technique [0002] With the development of the industrial 4.0 high-tech strategic plan and the continuous improvement of people's living standards, there are more and more demands for personalized customization, and at the same time, 3D printing technology has been born and developed rapidly. At present, in foreign countries, especially in the United States, due to the high cost, long time, and poor patient experience of traditional dental implant methods, the comfort and accuracy of dental implants are low, and data cannot be stored and transmitted, which has driven the application of 3D printing technology in dentistry. The use of 3D technology to print teeth, bridges, braces, and splints is in ful...

Claims

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Application Information

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IPC IPC(8): C08L51/08C08L63/00C08L33/00C08K3/36C08K3/22C08F283/00C08F220/30B33Y70/00A61K6/083A61K6/09A61K6/087A61K6/891A61K6/893
CPCA61K6/887A61K6/891A61K6/893B33Y70/00C08F220/30C08F283/008C08K2201/011C08L33/00C08L51/08C08L63/00C08L2205/03C08K3/36C08K2003/2227C08F220/301
Inventor 雷晓航
Owner WUXI CITY CASHEW NEW MATERIALS CO LTD
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