A coloring agent suitable for 3D printing white cement-based materials and its use and application

A 3D printing and white cement technology, which is applied in the field of building materials, can solve the problems of easy efflorescence on the surface of products, poor dispersion of colorants, collapse, etc., and achieve the effects of reducing efflorescence, reducing cement alkalinity, and increasing plastic viscosity

Active Publication Date: 2022-03-25
UNIV OF JINAN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Yet the inventor thinks: these traditional coloring agents are poor in dispersibility in cement, coloring performance is unstable, product surface is easy to efflorescence, weather resistance is poor, and the rheology, thixotropy, setting time etc. of the colored cement that make are all inferior It is suitable for the performance requirements of 3D printing cement-based materials, and the matching with 3D printing equipment is not high. The printing time is short and cannot be stably adjusted. The established 3D printing structure is easy to deform or even collapse.

Method used

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  • A coloring agent suitable for 3D printing white cement-based materials and its use and application
  • A coloring agent suitable for 3D printing white cement-based materials and its use and application

Examples

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Embodiment 1

[0037]A colorant suitable for 3D printing white cement-based materials, in parts by weight, the colorant comprises the following components: 2 parts of silane coupling agent, 5 parts of polymer emulsion, 30 parts of phenolic resin, and mineral admixture 20 parts, 17 parts of pigments, 28 parts of coagulant, 9 parts of water reducing agent, 1.1 parts of defoamer, and 110 parts of water. The polymer emulsion is polyacrylate emulsion; the mineral admixture is microsilica fume (whiteness is 89); the pigment is azo red; the coagulant is calcium nitrate; the water reducing agent It is a non-air-entraining polycarboxylate water reducer.

Embodiment 2

[0039] A colorant suitable for 3D printing white cement-based materials, in parts by weight, the colorant includes the following components: 5 parts of silane coupling agent, 16 parts of polymer emulsion, 17 parts of phenolic resin, and mineral admixture 10 parts, 20 parts of pigment, 9 parts of coagulant, 7 parts of water reducer, 0.05 part of defoamer, and 120 parts of water. The polymer emulsion is styrene-acrylic emulsion; the mineral admixture is lithium slag (whiteness is 90); the pigment is chrome green; the coagulant is potassium sulfate; Gas type polycarboxylate water reducer.

Embodiment 3

[0041] A colorant suitable for 3D printing white cement-based materials, in parts by weight, the colorant includes the following components: 1 part of silane coupling agent, 18 parts of polymer emulsion, 23 parts of phenolic resin, and mineral admixture 30 parts, 5 parts pigment, 30 parts coagulant, 6 parts water reducing agent, 0.15 part defoamer, 105 parts water. The polymer emulsion is vinyl acetate-acrylate copolymer emulsion; the mineral admixture is microsilica powder (whiteness is 91); the pigment is iron oxide blue; the coagulant is calcium sulfate; The water-reducing agent is a low-air-entraining polycarboxylate water-reducing agent.

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Abstract

The invention belongs to the technical field of building materials, and in particular relates to a colorant suitable for 3D printing white cement-based materials and its use method and application. In parts by weight, the colorant is compounded from the following components: 1-5 parts of coupling agent, 5-30 parts of polymer emulsion, 5-30 parts of resin, 10-40 parts of mineral admixture, pigment 5-25 parts, 5-30 parts coagulant, 2-9 parts water reducer, 0.05-1.10 parts defoamer, 95-120 parts water. The coloring agent proposed by the present invention has good colorability, weather resistance, pan-alkali resistance, plastic viscosity, yield stress, fast and stable setting time, and the printed object has a low deformation rate, etc., which can well meet the requirements of 3D printing needs of white cement-based materials.

Description

technical field [0001] The invention belongs to the technical field of building materials, and in particular relates to a colorant suitable for 3D printing white cement-based materials, a method of use and application thereof. Background technique [0002] The information disclosed in this Background of the Invention is only for enhancement of understanding of the general background of the invention and should not necessarily be taken as an acknowledgement or any form of suggestion that this information forms the prior art already known to a person of ordinary skill in the art. [0003] 3D printing technology is a technology that constructs printed objects by layer-by-layer printing of materials based on the designed digital model. It has been initially used in the field of building materials. Compared with traditional technologies, 3D printing building material technology has many advantages, such as: no need for building templates, and many complex building structures and ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B24/42C04B103/54
CPCC04B40/0039C04B2103/54C04B24/42C04B24/2641C04B24/302C04B18/146C04B24/129C04B22/085C04B24/24C04B2103/50C04B24/2676C04B18/144C04B22/06C04B22/147C04B22/143
Inventor 芦令超徐嘉宾陈明旭赵丕琪王守德宫晨琛
Owner UNIV OF JINAN
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