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Preparation method of photo-curable resin porous material

A technology of light-curing resin and porous material, which is applied in the field of preparing porous materials by using light-curing resin through 3D printing technology, can solve the problems of many technological processes, long production time and high rejection rate, and achieve advanced technology, less production process and cost. low cost effect

Inactive Publication Date: 2019-05-21
无锡映型三维数字技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

These processes are complicated, the operation is cumbersome, and the scrap rate is high in the production process. Especially when making small porous materials, the demand cannot be adapted to meet the design, and the process flow is long, the production time is long, and the shape is solidified.

Method used

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  • Preparation method of photo-curable resin porous material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] Use salt powder as the granular material and water as the solvent.

[0027] 1) According to the design needs, batch production of salt powder with a particle size of about 0.03mm as a "punched" granular substance;

[0028] 2) Add salt powder into the photocurable resin, and the volume ratio of the salt powder mixed with the photocurable resin is 70%;

[0029] 3) The light-curing resin mixed with salt powder is printed and formed by a light-curing 3D printer;

[0030] 4) Put the printed object into the water, so that the mixed salt powder is dissolved in the water;

[0031] 5) After dissolving, a hole is formed in the original part of the salt powder, and the holes are connected to form a channel.

[0032] According to the solution of the present invention as described in the above embodiment, by adding salt powder that is insoluble in resin but soluble in water to the photocurable resin used for printing, after the material is printed and formed, the salt powder is di...

Embodiment 2

[0034] Chitosan was used as the particulate matter and water was used as the solvent.

[0035] 1) According to the design needs, batch production of chitosan particles with a particle size of 0.05mm as a "punched" granular material;

[0036] 2) Incorporating chitosan particles into the photocurable resin, and the volume ratio of the incorporated chitosan particles to the photocurable resin is greater than 50%;

[0037] 3) The light-curing resin doped with chitosan particles is printed and formed by a light-curing 3D printer;

[0038] 4) Put the printed object into water to dissolve the incorporated chitosan particles in the water;

[0039] 5) After dissolving, holes are formed in the original chitosan particles, and the holes are connected to form channels.

[0040] According to the solution of the present invention as described in the above embodiment, by adding chitosan, which is insoluble in resin but soluble in water, into the photocurable resin used for printing, after ...

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Abstract

The invention provides a preparation method of a photo-curable resin porous material. The method comprises the steps of incorporating a particulate substance that is insoluble in photo-curable resin but soluble in other solvents into photo-curable resin, printing the photo-curable resin by a photo-curing process, putting the printed object into a solvent to dissolve the incorporated particulate substance, and forming pores in the dissolved portion to finally obtain the desired porous material. The adopted 3D printing technology is advanced and simple in operation; the multifarious requirementsfor different shapes during manufacturing of small-sized porous materials can be met only by changing the size, number and shape of the particulate substance as needed, and objects in quite complicated shapes can be manufactured easily; compared with traditional porous materials, the photo-curable resin porous material has low density, good performance, and low manufacturing cost; and the printedmaterial is ready to use after being printed, the process is simple and the speed is high.

Description

technical field [0001] The invention relates to a preparation method of a porous material, in particular to a method for preparing a porous material by using a photocurable resin through a 3D printing technology. Background technique [0002] A porous material is a material with a network structure composed of interconnected or closed pores. For thousands of years, natural porous materials such as wood, sponge and coral have been widely used by people. In modern times, people also began to make their own porous materials, the simplest of which is a honeycomb material composed of a large number of similar prismatic holes, which can be used as lightweight components. More common is the polymer foam material, which has a wide range of uses, from the small coffee cups that can be seen everywhere to the shock pads of the aircraft cabin. With the development of modern technology, metals, ceramics, glass and other materials can also be foamed like polymers. These new foams are i...

Claims

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Application Information

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IPC IPC(8): C08J9/26
Inventor 杜晖
Owner 无锡映型三维数字技术有限公司
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