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3D printing materials, their preparation methods and applications, and 3D products

A 3D printing and 3D technology, applied in the field of 3D printing, can solve the problems of slow molding speed and easy collapse, and achieve the effects of not easy to collapse, good pumping performance, and simple and efficient preparation method

Active Publication Date: 2021-08-24
YINGCHUANG BUILDING TECH SHANGHAI CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the actual printing process, because this process requires the material to have high plasticity, no support is needed during the molding process, so 3D printing puts forward higher requirements for the strength, molding speed, slump and plasticity of raw materials. 3D printing materials generally have problems such as slow forming speed and easy collapse. It is difficult for ordinary traditional 3D printing materials to meet their technical requirements. Therefore, a 3D printing material with higher strength, less collapse and fast forming is developed to adapt to It is an important work in the field of 3D printing technology to meet the needs of 3D printing technology and provide the preparation method of 3D printing materials used in conjunction with it.

Method used

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  • 3D printing materials, their preparation methods and applications, and 3D products
  • 3D printing materials, their preparation methods and applications, and 3D products
  • 3D printing materials, their preparation methods and applications, and 3D products

Examples

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preparation example Construction

[0081] According to a second aspect of the present invention, a method for preparing a 3D printing material includes the following steps:

[0082] Mix dry powder with solvent to get 3D printing material.

[0083] The method has the advantages of simple process, short time consumption and high efficiency.

[0084] Preferably, the preparation method of 3D printing material comprises the following steps:

[0085] Mix cement, admixture, fine aggregate, plastic retainer, binder, fiber, acrylic emulsion, water and optional water reducer evenly, and heat to 20~50°C to obtain 3D printing material.

[0086] Since the material is heated during the preparation step, the heat of the material can promote its rapid solidification and is not easy to crack or collapse.

[0087] According to a third aspect of the present invention, an application of a 3D printing material or a 3D printing material prepared by a method for preparing a 3D printing material in a 3D printing building is provided...

Embodiment 1

[0092] A 3D printing material, including dry powder and solvent;

[0093] Comprising the following components by weight percentage:

[0094] Gray cement 24.46%

[0095] Mineral powder 12%

[0096] Fly Ash 8%

[0097] Dry sand 15%

[0098] Blast furnace slag 20%

[0099] Shredded construction waste 20%

[0100] HPMC cellulose 0.02%

[0101] Polyvinyl alcohol 0.02%

[0102] Alkali-resistant chopped glass fiber 0.5%

[0103] Solvent comprises following components by weight percentage:

[0104] β-methyl naphthalene sulfonate condensation polymer 0.25%

[0105] Acrylic Emulsion 0.25%

[0106] Water 99.5%

[0107] A method for preparing a 3D printing material, comprising the following steps:

[0108] Mix gray cement, mineral powder, fly ash, oven-dried sand, blast furnace slag, crushed construction waste, HPMC cellulose, polyvinyl alcohol, and alkali-resistant chopped glass fiber in proportion to obtain dry powder; mix acrylic emulsion, Water and β-methyl naphthalene su...

Embodiment 2

[0113] A 3D printing material, including dry powder and solvent;

[0114] Comprising the following components by weight percentage:

[0115] Gray cement 16.46%

[0116] Mineral powder 20%

[0117] Fly Ash 8%

[0118] Dry sand 15%

[0119] Blast furnace slag 20%

[0120] Shredded construction waste 20%

[0121] CMC cellulose 0.02%

[0122] Redispersible latex powder 0.02%

[0123] Alkali-resistant glass fiber 0.5%

[0124] Solvent comprises following components by weight percentage:

[0125] β-methyl naphthalene sulfonate condensation polymer 0.25%

[0126] Acrylic Emulsion 0.25%

[0127] Water 99.5%

[0128] A method for preparing a 3D printing material, comprising the following steps:

[0129] Mix gray cement, mineral powder, fly ash, drying sand, blast furnace slag, crushed construction waste, CMC cellulose, redispersible latex powder, and alkali-resistant chopped glass fiber in proportion to obtain dry powder; The emulsion, water and β-methyl naphthalene sulfon...

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Abstract

The invention provides a 3D printing material, its preparation method, application and 3D products, and relates to the technical field of 3D printing. A 3D printing material, including dry powder and solvent; the dry powder does not contain coarse aggregate, but contains cement, admixture, fine aggregate, plastic retainer, binder and fiber; wherein the admixture includes mineral powder and pulverized coal Ash, in terms of weight ratio, mineral powder: fly ash is (11-33): (8-30); fine aggregate includes dry sand, blast furnace slag, and crushed construction waste, in weight ratio, dry sand: Blast furnace slag: construction waste pulverized into (3-69): (1-60): (1-65); solvent includes acrylic acid emulsion, water and optional water reducing agent. The present invention obtains a 3D printing material without coarse aggregate, high in strength, fast in forming, and not easy to collapse and deform, and a preparation method thereof. Print and get 3D products.

Description

technical field [0001] The invention relates to the technical field of 3D printing, in particular to a 3D printing material, its preparation method and application, and 3D products. Background technique [0002] 3D printing is a technology that is quite different from traditional manufacturing technologies such as subtractive manufacturing and equal material manufacturing. Based on the three-dimensional data of the model, the material is extruded through the printer nozzle, and the material is added layer by layer to generate a 3D entity. Therefore, Also known as additive manufacturing (additive manufacturing), it includes many cutting-edge technologies, such as: modeling technology, electromechanical control technology, information technology, material science, etc. [0003] Although 3D printing has the advantages of freer form, shorter time, good environmental protection and energy saving, as a new technology currently in the research and development trial stage, 3D printi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B28/04C04B28/08C04B28/06B33Y70/10B33Y80/00
CPCB33Y70/00B33Y80/00C04B28/04C04B28/06C04B28/065C04B28/08C04B2111/00181C04B18/141C04B18/08C04B14/06C04B18/16C04B24/383C04B24/2623C04B14/42C04B24/226C04B24/2641C04B2103/0057
Inventor 马义和
Owner YINGCHUANG BUILDING TECH SHANGHAI CO LTD