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A colorless and transparent photocurable 3D printing material

A 3D printing and photocuring technology, applied in the field of photocuring 3D printing materials and their preparation, can solve problems such as less research, and achieve the effects of good transparency, low molding shrinkage, and elasticity in transparency

Active Publication Date: 2017-05-03
CHANGSHU RES INST OF DALIAN UNIV OF TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the current research mainly focuses on the UV curing system, and there are few researches on the visible light-sensitive silicone curing system.

Method used

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  • A colorless and transparent photocurable 3D printing material
  • A colorless and transparent photocurable 3D printing material
  • A colorless and transparent photocurable 3D printing material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037]

[0038] Preparation Process:

[0039] (1) Mix 70g of dimethylvinylsiloxy-terminated dimethylpolysiloxane, 12g of trimethylsiloxy-terminated methylhydrogenpolysiloxane, 7g of fumed silica, and 8g of inhibitor Mix and stir well.

[0040] (2) Add 3 g of alcohol solution of chloroplatinic acid to the mixture obtained in (1), stir and mix evenly to obtain a colorless and transparent photocurable 3D printing material.

[0041] The light-curing 3D printing material was applied to a light-curing 3D printer in the container, and the printing test was performed at 25°C. The curing rate was fast, and the molded parts had general transparency and high strength.

Embodiment 2

[0043] Dimethylvinylsiloxy-terminated copolymer of dimethylsiloxane and methylphenylsiloxane

[0044]

[0045] Preparation Process:

[0046] (1) Mix 65g of dimethylvinylsiloxy-terminated dimethylsiloxane and methylphenylsiloxane copolymer, 20g of trimethylsiloxy-terminated dimethylsiloxane and methyl The copolymer of hydrogen siloxane, 10g of vinyl-containing MQ resin, and 4g of defoamer were mixed and stirred evenly.

[0047] (2) Add 1 g of the complex of chloroplatinic acid and diethyl phthalate to the mixture obtained in (1), stir and mix evenly to obtain a colorless and transparent photocurable 3D printing material.

[0048] The light-curing 3D printing material was applied to a light-curing 3D printer in the container, and the printing test was performed at 25°C. The curing rate was fast, and the molded parts had good transparency and high strength.

Embodiment 3

[0050]

[0051] Preparation Process:

[0052] (1) Mix 40g of dimethylvinylsiloxy-terminated dimethylpolysiloxane, 30g of trimethylsiloxy-terminated methylhydrogenpolysiloxane, 20g of fumed silica, and 9.999g of inhibitor The agent is mixed and stirred evenly.

[0053] (2) Add 0.001 g of an alcohol solution of chloroplatinic acid to the mixture obtained in (1), stir and mix evenly to obtain a colorless and transparent photocurable 3D printing material.

[0054] The light-curing 3D printing material was applied to a light-curing 3D printer in a container, and the printing test was performed at 25°C. The curing rate was slow, and the molded parts had general transparency and low strength.

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Abstract

The invention discloses a colorless and transparent light-cured 3D printing material and belongs to the technical field of cured materials. The printing material comprises organopolysiloxane containing a vinyl group, organopolysiloxane containing a silicon-hydrogen bond, a photoinitiator, reinforcing filler and an aid. A preparation method of the material comprises steps as follows: evenly mixing the organopolysiloxane containing the vinyl group, the organopolysiloxane containing the silicon-hydrogen bond, the reinforcing filler and the aid in percentage by mass; then adding the photoinitiator, and evenly mixing the mixture to obtain the colorless light-cured 3D printing material. The printing material has the benefits as follows: (1) the light-cured product is colorless, good in transparency and elastic; (2) the light-cured material is low in molding shrinkage, and the volume shrinkage is lower than 1.0%; (3) all components in a resin mixture participate in curing, no volatile solvent exists, and pollution is avoided; (4) the printing material is high in curing light source applicability, and the maximum curable light wavelength is 405 nm.

Description

technical field [0001] The invention belongs to the field of curing materials, in particular to a colorless and transparent light-curing 3D printing material and a preparation method thereof. Background technique [0002] Organosilicon polymers are semi-inorganic and semi-organic polymer compounds with silicon-oxygen bonds as the main chain and side chains through silicon and organic groups. The special structure endows it with many excellent properties, such as high and low temperature resistance, weather resistance, aging resistance, corrosion resistance, low surface tension and physiological inertia. Light curing technology has the advantages of fast curing, low energy consumption, high efficiency, and no pollution. It fully complies with the "3E" principle: Energy (energy saving), Ecology (ecology and environmental protection), and Economy (economy). It is an environmentally friendly green technology. Light-curing silicone materials are favored due to the excellent perf...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L83/07C08L83/05C08K3/36C08K5/12
Inventor 崔京南董琳王柳郑玉斌
Owner CHANGSHU RES INST OF DALIAN UNIV OF TECH CO LTD
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