Functional 3D printing photosensitive resin and preparation method thereof

A 3D printing and photosensitive resin technology, applied in the direction of additive processing, etc., can solve the problems of material performance limitations and insufficient application scenarios, and achieve the effect of changing physical and chemical properties, wide application scenarios, and fast leveling speed

Pending Publication Date: 2020-10-02
SHENZHEN BOOO 3D TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The invention provides a functional 3D printing photosensitive resin and its preparation method, which has solved the technical

Method used

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  • Functional 3D printing photosensitive resin and preparation method thereof
  • Functional 3D printing photosensitive resin and preparation method thereof
  • Functional 3D printing photosensitive resin and preparation method thereof

Examples

Experimental program
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preparation example Construction

[0032] Another aspect of the present invention provides the preparation method of the functional 3D printing photosensitive resin, comprising the following steps:

[0033] Step A: adding the acrylate resin, acrylate monomer, leveling agent, dyestuff of formula quantity, functional nanoparticles to obtain the primary mixture;

[0034] Step B: heating and stirring the primary mixture, then adding a free radical initiator, an ultraviolet absorber, and a small molecule alcohol, and reacting to obtain the 3D printing photosensitive resin.

[0035] Specifically, the formula in step A follows the formula of the functional 3D printing photosensitive resin.

[0036] In the specific step B, the heating temperature is 40°C-50°C; the reaction at low temperature will be slower, and the temperature will be uncontrollable at high temperature, so the temperature needs to be limited to this range.

[0037] Specifically in the step B, the stirring speed is 800-1000 rpm, and the stirring time i...

Embodiment 1

[0042] 1. Prepare photosensitive resin raw materials according to the ratio in Table 1

[0043] Table 1

[0044]

[0045]

[0046] 2. Preparation method

[0047] Step A: Add 15 parts of aliphatic urethane acrylate, 20 parts of polyester acrylate, 28 parts of hydroxyethyl methacrylate, 12 parts of acryloyl morpholine, cyclic 22 parts of trimethylolpropane formal acrylate, 10.5 parts of DC5, 0.2 part of oil-soluble black, 0.1 part of ethylene glycol, and 2 parts of carbon nanoparticles to obtain the first mixture.

[0048] Step B: Heat the first mixture obtained in step A to 40°C, adjust the speed of the agitator to 800 rpm, add 2 parts of TPO and 0.3 part of TINUVIN 400, and continue to stir evenly for 1 hour to obtain a light yellow uniform liquid, which is sealed and stored .

Embodiment 2

[0050] 1. Prepare photosensitive resin raw materials according to the ratio in Table 2

[0051] Table 2

[0052]

[0053]

[0054] 2. Preparation method

[0055] Step A: Add 25 parts of aliphatic urethane acrylate, 12 parts of polyester acrylate, 10 parts of lauryl methacrylate, 30 parts of acryloyl morpholine, polyethylene 20 parts of diol (200) diacrylate, 0.5 parts of BYK501, 0.3 parts of oil-soluble black, 0.2 parts of propylene glycol, and 3 parts of silica nanoparticles to obtain the first mixture.

[0056] Step B: Heat the first mixture obtained in Step A to 40°C, adjust the speed of the agitator to 800 rpm, add 2 parts of TPO and 0.2 parts of TINUVIN 400, and continue to stir evenly for 1 hour to obtain a light yellow uniform liquid, which is sealed and stored .

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Abstract

The invention provides functional 3D printing photosensitive resin, which is prepared from the following components in percentage by weight: 15 to 50 percent of acrylate resin, 40 to 80 percent of anacrylate monomer, 0.1 to 1.5 percent of a dye, 1 to 5 percent of a photoinitiator, 0.1 to 5 percent of a leveling agent, 0.01 to 2 percent of a ultraviolet absorbent, 0.1 to 0.3 percent of micromolecular polyol and 2 to 4 percent of functional nanoparticles. Compared with most photosensitive resin of the same type in the market, the 3D printing photosensitive resin has the advantages that the leveling speed is extremely high, the strength is high, and the success rate of high-speed continuous forming of 3D printing products is guaranteed. The 3D printing photosensitive resin disclosed by the invention is stable in mechanical property, excellent in ageing resistance, high in hardness, good in strength and low in curing volume shrinkage rate. According to the 3D printing photosensitive resindisclosed by the invention, the functional nanoparticles are added, so that the 3D printing photosensitive resin has functionality, the application scene of the 3D printing photosensitive resin is expanded, the physical and chemical properties of the 3D printing photosensitive resin are changed, the 3D printing photosensitive resin has a wider application scene, and the performance boundary of the 3D printing photosensitive resin is widened.

Description

technical field [0001] The invention belongs to the field of 3D printing new materials, in particular to a functional 3D printing photosensitive resin and a preparation method thereof. Background technique [0002] Stereo-curing 3D printing technology is the most deeply researched and most mature 3D printing technology in the world. It is widely used in hand-made models, dentistry, jewelry, footwear, industrial small-batch manufacturing and other fields. The application scenarios of 3D printing combined with 3D modeling are rapidly expanding. With the continuous expansion of application scenarios, the performance of the 3D printing resin material itself is not enough. [0003] Therefore, it is urgent to develop a 3D printing resin material with function expansion capability and its preparation method to fill the gap in the market and meet the ever-changing application scenarios. Contents of the invention [0004] The invention provides a functional 3D printing photosens...

Claims

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Application Information

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IPC IPC(8): C08F283/00C08F283/01C08F283/10C08F220/20C08F220/58C08F220/32C08F220/18C08F222/20C08F222/14C08F2/44C08F2/48C08K3/04C08K3/36C08K3/08B33Y70/10
CPCC08F283/008C08F283/01C08F283/105C08K3/04C08K3/36C08K3/08B33Y70/10C08K2201/011C08K2003/0806C08K2003/085C08F220/20C08F220/58C08F220/32C08F220/1812C08F222/1063C08F222/103C08F222/102C08F222/1025C08F220/1811C08F2/44C08F2/48
Inventor 黄立林泽航邓阳
Owner SHENZHEN BOOO 3D TECH CO LTD
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