Self-cleaning antibacterial light-cured resin material used for 3D printing

A light-curing resin and 3D printing technology, applied in the direction of additive processing, etc., can solve problems such as adverse effects on human health, restrictions on the promotion of rapid prototyping technology, and poor mechanical properties

Inactive Publication Date: 2016-11-30
佛山市高明区诚睿基科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, the photocurable resin materials currently used in SLA and DLP generally have poor mechanical properties, brittle resin, poor toughness, low elongation at break, low impact resistance, free radical and cationic hybrid photocurable resin printing After a few months of storage, it is easy to crack when bent, and the free radical photocurable resin shrinks greatly, and its hardness and elongation at break are low.
Photocurable resin materials with poor mechanical properties cannot print ideal objects, and these shortcomings limit the promotion of rapid prototyping technology
[0004] Moreover, during the storage, transportation and use of products printed by 3D printing technology, due to the influence of humidity, harmful particles and gases in the surrounding environment and air, bacteria are easy to grow on the surface, and pollutants are enriched, which will affect the human body. adverse health effects
At present, the antibacterial, anti-fouling and self-cleaning functions of popular 3D printing products and their raw materials on the market are not ideal, and need to be improved

Method used

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  • Self-cleaning antibacterial light-cured resin material used for 3D printing
  • Self-cleaning antibacterial light-cured resin material used for 3D printing

Examples

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preparation example Construction

[0016] (1) Preparation of epoxy acrylic resin: Weigh a certain amount of epoxy resin, dissolve it in toluene solvent, stir to dilute the solution, pour it into a three-necked flask, heat and stir in an oil bath at 90°C, and make it Fully dissolve; in addition, accurately measure a certain amount of acrylic acid and place it in a beaker, and add N,N-xylidine and hydroquinone to make an acrylic acid system. In epoxy resin, react stably for 1 hour, then gradually raise the temperature to 95°C, and react for another 1 hour; after the reaction, the product is suction filtered and cooled to room temperature to obtain a light yellow transparent colloidal liquid, namely epoxy acrylic resin; The mass ratio of resin to acrylic acid is 2.5:1, the mass ratio of N,N-xylidine to inhibitor hydroquinone is 1:3, and the mass ratio of N,N-xylidine to epoxy resin is 1 :12.

[0017] (2) Graphene is prepared by the following method: take a certain amount of graphite, treat it in the air at 1000 °...

Embodiment 1

[0022] A photocurable resin material for 3D printing, which consists of the following raw materials in parts by weight: 80 parts of epoxy acrylic resin, 2 parts of reactive diluent, 1 part of photoinitiator, 2 parts of other auxiliary agents, and 3 parts of graphene and 2 parts of multi-walled carbon nanotubes.

[0023] The preparation method of the photocurable resin material used for this 3D printing is as follows:

[0024] (1) Surface treatment of graphene and multi-walled carbon nanotubes with silane coupling agent KH550 or YDH-42 respectively;

[0025] (2) Weigh epoxy acrylic resin, add trimethylolpropane triacrylate, fully stir the system until it is diluted, and adjust the viscosity of the system to about 12 centipoise. Mix evenly; add benzoin dimethyl ether and isopropyl thioxanthone to the solution obtained in step (1), put it in a water bath and heat up to dissolve, and stir thoroughly, until all the solid particles are dissolved, stop stirring, and cool to room tem...

Embodiment 2

[0027] Based on Example 1, the difference is that the weight ratio of the epoxy acrylic resin, graphene and multi-walled carbon nanotubes is 80:5:8.

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Abstract

The invention discloses a self-cleaning antibacterial light-cured resin material used for 3D printing. The self-cleaning antibacterial light-cured resin material is prepared from, by weight, 75 to 85 parts of epoxy acrylate, 1 to 5 parts of a reactive diluents, 1 to 5 parts of a photoinitiator, 1 to 3 parts of other accessory ingredients, 1 to 10 parts of a graphene/TiO2 cleaning material, and 1 to 10 parts of a multiwalled carbon nanotube/nano-silver antibacterial material; wherein the weight ratio of epoxy acrylate: the graphene/TiO2 cleaning material: the multiwalled carbon nanotube/nano-silver antibacterial material is 80:(2-5):(2-8). According to the self-cleaning antibacterial light-cured resin material, a composite material is formed via absorption of nano silver particles and nano TiO2 powder onto multiwalled carbon nanotube and graphene, a scientific ratio is obtained via a plurality of experiments, and the composite material is distributed in a light-cured resin, so that the self-cleaning antibacterial light-cured resin material is capable of achieving preferably 3D printing product mechanical properties, and providing the 3D printing products with self-cleaning functions and antibacterial functions.

Description

technical field [0001] The invention relates to the field of composite materials, in particular to a self-cleaning and antibacterial photocurable resin material for 3D printing. Background technique [0002] 3D printing technology, also known as additive manufacturing technology, is actually an emerging technology in the field of rapid prototyping. A technique for constructing objects in a manner. The basic principle is additive manufacturing, the technique of adding material layer by layer to generate a three-dimensional solid. At present, 3D printing technology is mainly used in product prototyping, mold manufacturing, art creation, jewelry making and other fields, replacing these traditional fine processing techniques. In addition, 3D printing technology is gradually applied in fields such as medicine, bioengineering, architecture, clothing, aviation, etc., opening up a broad space for innovation. [0003] However, the photocurable resin materials currently used in SLA...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F283/10C08F222/14C08K13/06C08K9/12C08K9/06C08K3/22C08K3/04C08K7/24C08K3/08C08G59/17B33Y70/00
CPCB33Y70/00C08F283/105C08G59/1466C08K3/04C08K3/08C08K3/22C08K7/24C08K9/06C08K9/12C08K13/06C08K2003/0806C08K2003/2241C08K2201/003C08K2201/011C08F222/103
Inventor 黎淑娟
Owner 佛山市高明区诚睿基科技有限公司
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