Gelcasting method for red mud waste material by using ceramic powder modified silica gel mold with full-information surface

Abstract

A gelcasting method for a red mud waste material by using a ceramic powder modified silica gel mold with a full-information surface is characterized by comprising the following steps: adding ceramic powder in silica gel and uniformly stirring to prepare ceramic powder modified silica gel, adjusting the viscosity of the ceramic powder modified silica gel by using a silica gel diluent, adding a curing agent to the outside of the ceramic powder modified silica gel, stirring uniformly and then uniformly coating the surface of a silica gel mold, after curing, adding an initiator and a catalyst in red mud waste material gelcasting slurry, stirring uniformly, and then injecting into the silica gel mold, and after curing at a certain temperature, demolding, drying, fettling and firing to obtain the final product. By addition of the ceramic powder, the electrochemical characteristics (or surface chemical potential characteristics) of the surface of the silica gel are changed, C=C double bonds in organic monomer acrylamide molecules in the gelcasting slurry are successfully opened to carry out polymerization reaction under the effect of ammonium persulfate as the initiator, by addition of the ceramic powder, the surface of the silica gel mold is modified, thus, the curing strength of the surface of a cured blank is completely equal to the curing strength of the surface of the blank of ametal mold, and the surface information of the blank is complete.

Description

technical field [0001] The invention relates to a ceramic powder modified full-information surface silica gel mold red mud waste injection molding method, which belongs to the technical field of ceramic material preparation. Background technique [0002] With the continuous improvement of living standards, people's requirements for the beautification and original ecology of the home environment and social public environment continue to increase. However, every artist or artist needs to spend a lot of time, money and energy to create a work. It cannot satisfy people's pursuit of beauty, so there is an urgent need for a method that can reproduce the exquisite works of artists or artists in large quantities at low cost; [0003] Every exquisite work of art is expressed by full-information surfaces such as creative graphics and graphic surface textures, animal skin hairs, and surface bumps, so their shapes are extremely complex. The best way to solve the above problems is to us...