Oyster shell powder reinforced 3D printing composite material and preparation method thereof

A technology of oyster shell powder and composite materials, which is applied in the direction of additive processing, climate sustainability, sustainable waste treatment, etc., can solve the problems of lack of photosensitive resin design scheme, poor strength and toughness, etc., and achieve good appearance gloss, Low cost, good for environmental protection

Pending Publication Date: 2022-05-27
GUANGXI MEDICAL UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

There are many technical solutions for designing printing materials, but the design solutions to solve the technical problems caused by photosensitive resins are still lacking
[0011] Because the advantages of photosensitive resin are smooth surface, high precision, waterproof and moisture-proof, fast delivery cycle, and low price, but at the same time, its disadvantage is that its strength and toughness are slightly poor, so it is urgent to design a model that can make the model have a good glossy appearance. 3D printing materials with high wear resistance and long service life

Method used

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  • Oyster shell powder reinforced 3D printing composite material and preparation method thereof
  • Oyster shell powder reinforced 3D printing composite material and preparation method thereof
  • Oyster shell powder reinforced 3D printing composite material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0047] Please refer to figure 1 , this embodiment mainly introduces a preparation method of 3D printing composite material reinforced by oyster shell powder, which includes:

[0048] S1. Wash the surface of the oyster shell;

[0049] S2, crushing and grinding;

[0050] S3. Screen with a 100-mesh sieve;

[0051] S4, carry out dialysis and impurity removal with the powder obtained in S3;

[0052] S5, the powder obtained in S4 is dried to obtain powdered oyster shell powder;

[0053] S6, adding powdered oyster shell powder to the photosensitive resin, mixing and stirring to form a mixture;

[0054] S7. After stirring for a period of time, ultrasonic treatment is performed to obtain a 3D printing composite material;

[0055] S8. Put the 3D printing composite material into the SLA photosensitive resin 3D printing hopper.

[0056] Further, in the step S1, the surface of the oyster shell is washed with 1M HCl low-concentration hydrochloric acid.

[0057] Further, in the step S...

Embodiment 2

[0069] Based on the above-mentioned embodiment 1, this embodiment mainly introduces a method and results of testing the hardness of a 3D printing composite material reinforced by oyster shell powder using a Vickers hardness tester as follows:

[0070] S1. Preparation before the experiment

[0071] 1. Check the accuracy of the hardness tester: start it when the test piece is not installed, check the action of each mechanism, and then use the standard Vickers hardness block to check the indication accuracy;

[0072] 2. Preparation of the sample: the surface of the sample should be smooth, and the surface of the sample must be smooth in the production of the sample;

[0073] 3. Selection of test bench: It can ensure that the test piece is placed on it stably, and the surface is perpendicular to the indenter;

[0074] 4. Selection of test force: The test force is selected according to the thickness of the specimen, the expected hardness and the depth of the hardened layer.

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Abstract

The invention discloses a preparation method of an oyster shell powder reinforced 3D printing composite material. The preparation method comprises the following steps: S1, cleaning the surface of an oyster shell; s2, crushing and grinding; s3, screening with a 100-mesh sieve; s4, performing dialysis and impurity removal on the powder obtained in S3; s5, drying the powder obtained in the step S4 to obtain powdery oyster shell powder; s6, adding the powdery oyster shell powder into the photosensitive resin, and mixing and stirring to form a mixture; and S7, after stirring is conducted for a period of time, ultrasonic treatment is conducted, and the 3D printing composite material is obtained. And S8, the 3D printing composite material is put into an SLA photosensitive resin 3D printer trough. According to the method, the oyster shells and the photosensitive resin are used as raw materials, the oyster shells are wide in resource and rich in source and do not damage the ecological environment, meanwhile, the printing cost can be reduced through the method, the fineness of a printed and formed model is high, and a printed and formed finished product is good in appearance glossiness, high in abrasion resistance and high in hardness; and the service life is long.

Description

technical field [0001] The invention belongs to the field of preparation and design of 3D printing composite materials, in particular to a 3D printing composite material reinforced by oyster shell powder and a preparation method. Background technique [0002] 3D printing technology is based on the computer three-dimensional design model. Through the software layered discrete and numerical control molding system, the metal powder, ceramic powder, plastic, cell tissue and other special materials are stacked layer by layer by means of laser beams, hot melt nozzles, etc. Bonded, and finally superimposed to create a solid product. The limitations and bottlenecks of 3D printing technology are mainly reflected in materials. At present, the printing materials are mainly plastics, resins, gypsum, ceramics, sand and metals, etc., and the materials that can be used for 3D printing are very limited. Moreover, 3D printing is still a relatively expensive technology. Due to the difficul...

Claims

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Application Information

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IPC IPC(8): C08L101/00C08K3/26B33Y70/10
CPCC08K3/26B33Y70/10C08K2003/265C08L101/00Y02W30/91
Inventor 赵劲民郑立钟静萍龙炳材余菁
Owner GUANGXI MEDICAL UNIVERSITY
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