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Gypsum-based 3D printing material based on high-pressure homogenization and rapid jet molding and preparation method of gypsum-based 3D printing material

A 3D printing, high pressure homogenization technology, applied in the field of 3D printing materials, can solve the problems of difficult to control the molding process, low viscosity of gypsum materials, difficult inorganic materials, etc., to achieve low cost, improve thixotropic properties, and increase bond strength. Effect

Inactive Publication Date: 2017-08-11
WUHAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is to provide a gypsum-based 3D printing high-pressure homogenized injection rapid prototyping material and its preparation method for the above-mentioned existing technology, and accurately control the instantaneous solidification time of the injection-molded slurry through solid-liquid high-speed homogenization , to solve the problems that inorganic materials are difficult to be used for 3D printing molding, gypsum materials have low viscosity, low strength, and difficult to control the molding process

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Embodiment 1: Gypsum-based 3D printing high-pressure homogenized injection rapid prototyping material and its preparation method, the weight ratio of each component is as follows:

[0024] The powder material is in mass ratio: 85 parts of α hemihydrate gypsum, 10 parts of filler material (a spherical inorganic inert material with a particle size of 10 μm to 100 μm, such as fly ash, the same below), 5 parts of calcium carbonate whiskers (fiber Diameter≤10μm, fiber length is 300μm~1mm); the mass ratio of the liquid material: 97 parts of water, 2 parts of hydroxypropyl methylcellulose ether, 1 part of polycarboxylic acid, the mass ratio of the atomized material: Soluble sulfate 1 part.

[0025] Described α hemihydrate gypsum is to use any one of natural dihydrate gypsum, phosphorus-based dihydrate gypsum and desulfurized dihydrate gypsum as a raw material, and is synthesized by atmospheric pressure hydrothermal method, and the aspect ratio of described α hemihydrate gypsum...

Embodiment 2

[0027] Embodiment 2: Gypsum-based 3D printing high-pressure homogenized injection rapid prototyping material and its preparation method, the weight ratio of each component is as follows:

[0028] According to the mass ratio of the powder materials: 55 parts of α hemihydrate gypsum, 30 parts of filler material (spherical inorganic inert material with a particle size of 10 μm to 100 μm), 15 parts of carbon fiber (fiber diameter ≤ 10 μm, fiber length of 300 μm to 1 mm) ; The mass ratio of the liquid material: 95 parts of water, 2 parts of hydroxypropyl methylcellulose ether, 1 part of melamine, and the mass ratio of the liquid material: 1 part of chloride salt.

[0029] Described α hemihydrate gypsum is to use any one of natural dihydrate gypsum, phosphorus-based dihydrate gypsum and desulfurized dihydrate gypsum as a raw material, and is synthesized by atmospheric pressure hydrothermal method, and the aspect ratio of described α hemihydrate gypsum is 1:1~1:3, the crystal is shor...

Embodiment 3

[0031] Embodiment 3: Gypsum-based 3D printing high-pressure homogenized injection rapid prototyping material and its preparation method, the weight ratio of each component is as follows:

[0032] According to the mass ratio of the powder materials: 70 parts of α hemihydrate gypsum, 15 parts of filler material (spherical inorganic inert material with a particle size of 10 μm to 100 μm), 15 parts of polypropylene fiber (fiber diameter ≤ 10 μm, fiber length of 300 μm to 1 mm); the mass ratio of the liquid material: 96 parts of water, 1.5 parts of hydroxypropyl methylcellulose ether, 0.5 part of polycarboxylic acid, and the mass ratio of the liquid material: 1.5 parts of chloride salt.

[0033] Described α hemihydrate gypsum is to use any one of natural dihydrate gypsum, phosphorus-based dihydrate gypsum and desulfurized dihydrate gypsum as a raw material, and is synthesized by atmospheric pressure hydrothermal method, and the aspect ratio of described α hemihydrate gypsum is 1:1~...

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Abstract

The invention relates to a gypsum-based 3D printing material based on high-pressure homogenization and rapid jet molding and a preparation method of the gypsum-based 3D printing material. The preparation method comprises steps as follows: 1 part by mass of a powder material and 0.3-0.5 parts by mass of a liquid material are homogenized and stirred, and slurry with initial fluidity larger than or equal to 180 mm and setting time shorter than or equal to 30 min is prepared; 0.1-0.2 parts by mass of an atomization material and the slurry are subjected to opposed mixing at high speed, and the gypsum based 3D printing high-pressure homogenization and rapid jet molding material with accurate and controllable setting time being 0-5 min is prepared. The gypsum-based 3D printing material based on high-pressure homogenization and rapid jet molding and the preparation method of the gypsum-based 3D printing material have the beneficial effects as follows: firstly, the cost is low, and resource utilization of waste is effectively realized; secondly, alpha-hemihydrate gypsum is prepared with a normal-pressure hydrothermal method, and the preparation process is low-carbon and efficient; thirdly, aiming at an industrial actual production process, a high-pressure homogenization and rapid jet curing molding based 3D printing technology is adopted, so that actual construction is facilitated.

Description

technical field [0001] The invention belongs to the technical field of 3D printing materials, and relates to a gypsum-based 3D printing high-pressure homogenizing jet rapid prototyping material and a preparation method thereof. Background technique [0002] 3D printing technology, also known as "additive manufacturing", is a kind of rapid prototyping technology. As early as the 1990s, 3D printing technology has been developed. 3D printing technology is based on a personalized 3D model, based on 3D printing equipment, through the principle of layer-by-layer or point-by-point integral accumulation, a rapid prototyping technology that realizes complex shapes of products but requires high precision. 3D printing technology integrates cutting-edge technologies in multidisciplinary fields such as digital modeling technology, electromechanical control technology, information technology, and material science and technology. [0003] 3D architectural printing materials are mainly ce...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/14B33Y70/00
CPCC04B28/146B33Y70/00C04B2111/00181C04B18/08C04B14/383C04B24/383C04B24/24C04B22/14C04B14/386C04B24/128C04B22/12C04B16/0633
Inventor 马保国郅真真郭炎飞苏英金子豪彭毅卢文达祝路孙仲达
Owner WUHAN UNIV OF TECH
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