Preparation of 3D rapid prototyping alumina-zirconia-carbon ceramic powder material

Abstract

The invention discloses a method for preparing a 3D rapid prototyping alumina-zirconia-carbon ceramic powder material. The method is characterized by comprising the following steps: firstly, pre-treating alumina-zirconia-carbon ceramic powder with N-(beta-aminoethyl)-gamma-amino propyl trimethoxy silane and stearic acid to obtain pre-treated alumina-zirconia-carbon ceramic powder; then, adding the following components in percentage by mass: 60-70 percent of trichloroethane and 2-5 percent of bisphenol A polycarbonate into a reactor, stirring and dissolving, and adding 26-36 percent of the pre-treated alumina-zirconia-carbon ceramic powder, uniformly stirring and mixing, intensively stirring at constant temperature of 50+ / -5 DEG C, refluxing to react for 5-7 hours, and drying by spraying to obtain the rapid prototyping alumina-zirconia-carbon ceramic powder material. The material does not need to spray adhesive, can be directly molded in a molding temperature range of 220-230 DEG C, has the advantages of simple preparation process, easily controlled condition and low production cost, and is easy for industrial production.

Description

technical field [0001] The invention relates to a method for preparing a 3D printing inorganic powder molding material, which belongs to the field of rapid prototyping materials, and in particular to the preparation and application of a 3D printing rapid prototyping zirconium aluminum carbon ceramic powder material. Background technique [0002] Traditional high-alumina refractory materials introduce structural micropores to improve the thermal shock resistance of the material, so that while the thermal shock resistance is improved, the erosion resistance and strength of the material are compromised. Polycrystalline monoclinic zirconia with a certain degree of agglomeration is added to the refractory material, and the microcracks accompanying the introduction of dispersed zirconia are used to replace the structural micropores introduced in the design of traditional thermal shock-resistant refractory materials, and the preparation has excellent thermal shock resistance. The c...

AI Technical Summary

Problems solved by technology

[0005] 3D printing technologies include 3DP technology, FDM fusion lamination molding technology, SLA stereolithography technology, SLS selective laser sintering technology, DLP laser molding technology and UV ultraviolet molding technology. The most widely used is FDM3D printing technology. This technology can be used in the home. It is easy to operate and the materials used are generally available. The products printed by this technology are also close to our daily necessities. The materials used are mainly environmentally friendly polymer materials. Such as: PLA, PCL, PHA, PBS, PA, ABS, PC, PS, PVC, because this technology is generally printed on the desktop, the smell produced by the molten polymer material or the harmful substances produced by decomposition directly contact us contact with other people, it is easy to cause safety problems

However, there are many shortcomings in the SLS process that seriously limit the further application and popularization of SLS; thus, the use of molding materials based on the SLS process is also limited.