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Phosphogypsum-based outdoor landscape material for 3D (three-dimensional) printing

A 3D printing, phosphogypsum technology, applied in the field of phosphogypsum-based outdoor landscape materials, can solve problems such as easy generation of harmful gases, unsuitable outdoor environment, hidden dangers, etc., and achieve the effect of shortening the development cycle, shortening the condensation time, and protecting the environment.

Active Publication Date: 2017-03-15
HUBEI UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] As mentioned above, a variety of gypsum materials for 3D printing have been disclosed in the prior art, but if these materials are directly applied to outdoor landscapes, there are still some disadvantages, such as containing some decomposable polymer materials, which are prone to produce harmful gases and / or or substances, causing safety hazards; or low strength, poor water resistance, not suitable for outdoor environments; or high-strength gypsum, which is expensive

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] (1) Evenly mix 70 parts of β-hemihydrate gypsum, 3 parts of calcium sulfate dihydrate whiskers, 4 parts of cement, 0.03 parts of graphene oxide and 2 parts of nano silicon dioxide to obtain composite powder:

[0032] (2) The roller pushes the composite powder in step (1) to the modeling platform, and evenly spreads a layer with a thickness of <0.075mm. At the same time, the print head sprays 20 parts of the adhesive-cured composite powder, and the color inkjet print head sprays 2 parts of the pigment It is optional to spray on the paved powder material, and then the modeling platform is lowered layer by layer, and this action is repeated until the phosphogypsum-based outdoor landscape is completed.

[0033] The adhesive is a composite of wet-milled water-quenched blast furnace slag and water-soluble polyurethane acrylate photosensitive resin, and the composite weight ratio is 8:1.

[0034] The pigment is a mixture of inorganic composite pigment and nitrogen-doped nano-t...

Embodiment 2

[0040] Embodiment 2, with embodiment 1, the difference is,

[0041] (1) 85 parts of phosphogypsum, 8 parts of calcium sulfate dihydrate whiskers, 2 parts of cement, 0.01 part of graphene oxide and 0.5 part of nano silicon dioxide are uniformly mixed to obtain composite powder;

[0042] (2) The roller pushes the composite powder in step (1) to the modeling platform, and evenly spreads a layer with a thickness of <0.075mm. At the same time, the print head sprays 8 parts of the adhesive-cured composite powder, and the color inkjet print head sprays 2 parts of the pigment It is optional to spray on the paved powder material, and then the modeling platform is lowered layer by layer, and this action is repeated until the phosphogypsum-based outdoor landscape is completed.

[0043] The adhesive is a composite of wet-milled water-quenched steel slag and water-soluble polyurethane acrylate photosensitive resin, and the composite weight ratio is 8:2.

[0044] The pigment is a mixture o...

Embodiment 3

[0049] Embodiment 3, with embodiment 1, the difference is,

[0050] (1) Evenly mix 75 parts of phosphogypsum, 5 parts of calcium sulfate dihydrate whiskers, 3 parts of cement, 0.03 part of graphene oxide and 2 parts of nano silicon dioxide to obtain composite powder;

[0051] (2) The roller pushes the composite powder in step (1) to the modeling platform, and evenly spreads a layer with a thickness of <0.075mm. At the same time, the print head sprays 15 parts of the adhesive-cured composite powder, and the color inkjet print head sprays 2 parts of the pigment It is optional to spray on the paved powder material, and then the modeling platform is lowered layer by layer, and this action is repeated until the phosphogypsum-based outdoor landscape is completed.

[0052] The adhesive is a composite of wet-milled water-quenched steel slag and water-soluble polyurethane acrylate photosensitive resin, and the composite weight ratio is 8:2.

[0053] The pigment is a mixture of inorgan...

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Abstract

The invention discloses a phosphogypsum-based outdoor landscape material for 3D (three-dimensional) printing. 70-85 parts of phosphorus gypsum, 3-8 parts of coagulation accelerators, 2-4 parts of cement, 0.01-0.03 part of graphene oxide and 0.5-2 parts of nano-silicon dioxide are mixed to obtain composite powder, a roller is pushed to a modeling platform, a layer is uniformly paved, the thickness of the layer is smaller than 0.075mm, a printing head sprays 8-20 adhesive curing composite powder, a color ink-jet printing head selectively jets two pigments on paved powder, and the modeling platform repeatedly reduces layer by layer until phosphogypsum-based outdoor landscapes are finished. The prepared phosphogypsum-based outdoor landscape material is a green building material, wide in source, low in cost, easy to obtain, low in toxic and side effect, good in water resistance and prepared in a 3D printing manner and has functions of removing odor, resisting pollution, purifying air and the like, mechanical machining or any molds are omitted, 28d strength is larger than 20Mpa, and a softening coefficient is larger than 0.85.

Description

technical field [0001] The invention belongs to the technical field of building decoration materials, in particular to a 3D printed phosphogypsum-based outdoor landscape material. Background technique [0002] 3D printing is a high-tech developed in recent years. It has achieved great success in machinery manufacturing and other industries, and has also developed in the fields of materials and construction. 3D printers can quickly produce accurate models for curved and special-shaped buildings, achieving a level of craftsmanship that cannot be achieved by traditional architectural model production. The current 3D printing materials used for outdoor landscapes are relatively limited. At present, there are about 4 kinds of materials that can be used, mainly plastic, metal powder, wood, cement and so on. However, cement is heavy, poor in plasticity, and the cost of anti-corrosion wood is high. The mechanical properties of wood-plastic composites are not high, and they are susc...

Claims

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Application Information

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IPC IPC(8): C04B28/14B33Y70/00
CPCB33Y70/00C04B28/143C04B2111/00017C04B2111/20C04B2111/28C04B2201/50C04B14/383C04B7/00C04B14/024C04B14/06C04B24/282C04B24/2641C04B2103/54
Inventor 贺行洋代飞苏英王迎斌曾三海郑正旗王庭苇孙艺恒叶青秦景燕江波
Owner HUBEI UNIV OF TECH
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