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Anti-static light-cured resin material for 3D (three-dimensional) printing

A light-curing resin and 3D printing technology, applied in the direction of additive processing, etc., can solve the problems of antibacterial, antifouling and self-cleaning functions, low impact resistance, enrichment of pollutants, etc., and achieve good antistatic effect, Effects of improving performance and widening the range of applications

Inactive Publication Date: 2016-12-14
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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  • Anti-static light-cured resin material for 3D (three-dimensional) printing
  • Anti-static light-cured resin material for 3D (three-dimensional) printing

Examples

Experimental program
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preparation example Construction

[0014] (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.

[0015] (2) Graphene is prepared by the following method: take a certain amount of graphite, treat it in the air at 1000 °...

Embodiment 1

[0020] 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.

[0021] The preparation method of the photocurable resin material used for this 3D printing is as follows:

[0022] (1) Surface treatment of graphene and multi-walled carbon nanotubes with silane coupling agent KH550 or YDH-42 respectively;

[0023] (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

[0025] 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 an anti-static light-cured resin material for 3D (three-dimensional) printing, which comprises the following raw materials in parts by weight: 75 to 85 parts of epoxy acrylate resin, 1 to 5 parts of a reactive diluent, 5 to 15 parts of a composite anti-static agent, 1 to 5 parts of a photoinitiator, 1 to 3 parts of other auxiliary agents, 1 to 10 parts of graphene and 1 to 10 parts of multi-walled carbon nanotubes, wherein the weight ratio of the epoxy acrylate resin, the graphene and the multi-walled carbon nanotubes is 80:(2-5):(2-8); and the composite anti-static agent comprises stannic oxide, titanium oxide and poly(ether-ester) according to the weight ratio of (1-4):(3-5):(1-4). The composite anti-static agent, the graphene and the multi-walled carbon nanotubes are dispersed in the light-cured resin, so the prepared light-cured resin material is higher in break elongation rate and maximum bending strain than those of the common light-cured resin to a certain degree, a forming part printed by a 3D printer has higher mechanical properties and an excellent anti-static effect, an anti-static product produced by the forming part is suitable for special engineering, and the application range of 3D printing is further widened.

Description

technical field [0001] The invention relates to the field of composite materials, in particular to a photocurable resin material for antistatic 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 and DLP generally ha...

Claims

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Application Information

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IPC IPC(8): C08L51/08C08L67/00C08K13/06C08K9/06C08K7/24C08K3/04C08K3/22C08K3/08C08F283/10C08F222/14C08F2/48B33Y70/00
CPCB33Y70/00C08F2/48C08F283/105C08K2201/003C08K2201/011C08L51/08C08L2201/04C08L67/00C08K13/06C08K9/06C08K7/24C08K3/04C08K2003/2241C08K2003/0806C08F222/103
Inventor 黎淑娟
Owner 佛山市高明区诚睿基科技有限公司
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