Properties and Microstructure of Gypsum Waterborne Binder Shell
Author of the article:XU Guiping;LI Tao;LIU Baoguang;Qiu Baoqiang;WANG Xu
Author's Workplace：Shanghai Composite Materials Technology Co., Ltd., Shanghai 201100, China;Shanghai Aerospace Resin Matrix Composite Materials Engineering Technology Research Center, Shanghai 201100, China
Key Words：gypsum waterborne binder shell performance of gypsum shell formula microstructure
Abstract：
The process of producing hollow metal artwork by gypsum mould investment casting was taken as an example.The influence of filler, additive and water-based silica sol binder on the properties of gypsum shell was studied. By observing and analyzing the microstructure of the gypsum shell under different formulations, the formula with the best comprehensive performance was obtained. This formula can enhance the air permeability of gypsum shell, improve the mechanical properties and surface quality of gypsum shell, and reduce the cracking tendency of gypsum shell.
