3D printing building material

Abstract

The invention discloses a 3D printing building material. The 3D printing building material comprises, by weight, 70 to 90 parts of building rubbish, 20 to 30 parts of diatomite, 20 to 30 parts of river mud, 4 to 8 parts of asbestos fiber, 12 to 16 parts of fly ash, 24 to 30 parts of perlite, 60 to 70 parts of a filling material, 10 to 16 parts of a gelatin compound, 7 to 9 parts of epoxy modifiedpolyester resin, 14 to 20 parts of unsaturated polyester resin, 5 to 8 parts of a curing agent, 2 to 4 parts of phenyltriethoxysilane, 2 to 4 parts of a pigment, and 6 to 8 parts of a light reflectionpowder. The gelatin compound is prepared via following steps: gelatin is dissolved in water, polyvinyl alcohol is added for uniform mixing, the pH value of an obtained system is adjusted with hydrochloric acid to be 6 to 6.4, an obtained mixture is heated and stirred, a glutaraldehyde aqueous solution is added for stirring, filtering is carried out, epoxy soybean oil and bisphenol A are added foruniform stirring, m-phenylenediamine is added, an obtained mixed material is heated, stirred, and cooled, and phenol is added for stirring so as to obtain the gelatin compound.

Description

technical field [0001] The invention relates to the technical field of 3D printing, in particular to a 3D printing material for the construction industry. Background technique [0002] The realization of 3D printing technology for building materials is based on a slurry material that can be precisely positioned according to computer data and has a high degree of controllable extrusion. After computer modeling, 3D printing technology can use this material to print layer by layer according to the model. First, the plant components are printed out, then transported to the site for installation, and finally a three-dimensional object is formed. The application of 3D printing in the construction industry has not yet formed a scale, and 3D printing of physical buildings is still in the experimental stage. [0003] The development and application of architectural 3D printing building materials is mainly used in the manufacturing fields of building interior and exterior walls, natu...

AI Technical Summary

Problems solved by technology

The application of 3D printing in the construction industry has not yet formed a scale, and 3D printing of physical buildings is still in the experimental stage

3D printing building materials have been preliminarily applied to engineering practice, but at present, their cost is high, their performance is poor, and their impact strength cannot meet the demand, which needs to be solved urgently.