3D printing based cement based inorganic gelling material and preparation method thereof

An inorganic cementitious material, 3D printing technology, applied in the direction of additive processing, etc., can solve the problems of long bonding time, inability to print high-precision building components, clogging and other problems

Inactive Publication Date: 2018-09-04
深圳市明远建筑科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The existing gelling materials for printing have a long or too short bonding time, and the setting time cannot be freely adjusted to meet the requirements of printing and curing laminates, or they are solidified at the extrusion head during the printing process and cause blockage; The fluidity of gelled materials is not coordinated with extrusion printing, too large or too small will cause varying degrees of obstacles to extrusion printing; the existing gelled materials for printing cannot obtain early strength in a short period of time during the printing process, and it is difficult to guarantee printing The continuation of the process; the printing accuracy of the existing printing gel materials is poor, and it is impossible to print high-precision building components

Method used

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  • 3D printing based cement based inorganic gelling material and preparation method thereof
  • 3D printing based cement based inorganic gelling material and preparation method thereof
  • 3D printing based cement based inorganic gelling material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044] 1. Prepare the following substances in parts by weight:

[0045]

[0046]

[0047] Preparation method: Weigh the raw materials according to the formula, and add cement (composite Portland cement), dense filler (ultrafine quartz powder), active admixture (first-class fly ash), and water reducer to the cement slurry mixer in sequence (naphthalene-based high-efficiency water reducer), early strength agent (calcium formate), accelerator (alumina clinker), retarder (sodium gluconate), expansion agent (UEA expansion agent), impervious agent (water glass ) and fiber (polyvinyl alcohol fiber), fully stirred evenly, so as to obtain powdery cement-based inorganic gelling material;

[0048] Take 45 parts of water, add thickening water-retaining agent (hydroxypropyl methylcellulose ether), defoamer (polyether silicone oil), binder (polyvinyl alcohol) and lubricant (water-soluble emulsified silicone oil), stirred evenly to obtain a mixed solution.

[0049] Add the stirred mi...

Embodiment 2

[0052] Prepare the following materials in parts by weight:

[0053]

[0054]

[0055] Preparation method: Weigh the raw materials according to the formula, add cement 1 (composite Portland cement), cement 2 (double fast sulphoaluminate cement), dense filler (ultrafine clay), active blending Material (first-class fly ash), water reducer (calcium lignosulfonate), accelerator (calcium fluoroaluminate), retarder (citric acid), expansion agent (AEA expansion agent), anti-seepage agent ( Sodium hydroxide) and fiber (alkali-resistant glass fiber), fully stir evenly, obtain powdery cement-based inorganic gelling material with this;

[0056] Measure 45 parts of water, add thickening water-retaining agent (hydroxypropyl methyl cellulose ether), binding agent (epoxy resin), defoamer (high carbon alcohol) and lubricant (rosin) in magnetic stirrer with this NaOH), stirred evenly to obtain a mixed solution. Add the stirred mixed solution into the powdered cement-based inorganic ceme...

Embodiment 3

[0059] Prepare the following substances in parts by weight:

[0060]

[0061] Preparation method: Weigh the raw materials according to the formula, add cement 1 (composite Portland cement), cement 2 (double-fast sulphoaluminate cement), cement 3 (white Portland cement), dense Filler (limestone powder), active admixture (aluminum slag powder), water reducer (naphthalene superplasticizer), accelerator (calcium fluoroaluminate), retarder (sodium hexametaphosphate), expansion agent 1 (AEA expansion agent), expansion agent 2 (UEA expansion agent), anti-seepage agent (sodium carbonate) and fiber (ceramic fiber), fully stirred evenly, so as to obtain powdery cement-based inorganic gelling material;

[0062] Measure 50 parts of water, add thickening water-retaining agent (carboxymethyl hydroxyethyl cellulose), binding agent (vinyl acetate), defoamer (polycarboxylic acid) and lubricant 1 (water-soluble emulsified silicone oil), lubricant 2 (sodium abietate), and stirred evenly to o...

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Abstract

The invention provides a 3D printing based cement based inorganic gelling material and a preparation method thereof, and relates to a 3D printing material. In order to solve the problems of poorer printing precision and high-precision building component printing incapability of the existing gelling material for printing, the invention provides the 3D printing based cement based inorganic gelling material with the following technical scheme that the 3D printing based cement based inorganic gelling material is prepared from the following ingredients of cement, compaction filling materials, active mixing materials, water reducing agents, earth strength agents, accelerators, retarders, thickening water preservation agents, bonding agents, expansion agents, anti-foaming agents, anti-seepage agents, lubricating agents and fiber. The 3D printing based cement based inorganic gelling material has the beneficial effects that the preparation is simple and convenient; good continuous extrusion performance is realized; good overlapped layer building performance is realized; excellent waterproof, anti-seepage function and good anti-cracking performance are realized.

Description

technical field [0001] The invention relates to a 3D printing material, specifically, a cement-based inorganic gelling material based on 3D printing and a preparation method thereof. Background technique [0002] 3D printing is a technology of manufacturing three-dimensional products by adding materials layer by layer through 3D printing equipment based on the designed 3D model. This layer-by-layer accumulation forming technology is also called additive manufacturing. 3D printing integrates cutting-edge technologies in many fields such as digital modeling technology, electromechanical control technology, information technology, material science and chemistry. It is a kind of rapid prototyping technology and is known as the core technology of the "third industrial revolution". Compared with traditional manufacturing technology, 3D printing does not need to make molds in advance, remove a large amount of material during the manufacturing process, and get the final product with...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/04C04B28/06B33Y70/00
CPCB33Y70/00C04B28/04C04B28/06C04B2111/00181C04B2201/50C04B14/06C04B18/08C04B24/04C04B24/10C04B24/383C04B24/2623C04B24/42C04B22/00C04B16/0641C04B2103/12C04B2103/0068C04B2103/302C04B7/02C04B14/106C04B24/18C04B22/14C04B24/06C04B24/281C04B24/02C04B24/34C04B22/062C04B14/42C04B14/28C04B18/144C04B22/126C04B22/16C04B24/045C04B24/28C04B22/10C04B14/46
Inventor 黄明洋曹香鹏卢乐成
Owner 深圳市明远建筑科技有限公司
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