Preparation and Performance of Building Fire Protection and Insulation Materials

In this paper, a series of calcium silicate thermal insulation materials were prepared by hydrothermal method, and their structure, mechanical properties and thermal insulation properties were systematically studied by adjusting their preparation process, aiming to develop a new type of calcium silicate thermal insulation material with excellent performance. We found that the product gradually changed from a dense flocculent substance on the surface to a loose needle rod substance, and the grain grew, and the crystallinity increased with the increase of synthesis temperature. As the initial calcium silicon ratio increases, the surface pores of the product increase, and the surface gradually becomes loose from dense, resulting in the appearance of tobermorite and xonotlite phases.