Preparation and Properties Investigation of Active High Temperature Resistant Insulation Material

摘要

The active high temperature resistant insulation material is devised to fulfill the specified requirements of the packing material. The complex material K_2O·6TiO_2 whisker/expanded perlite/resol was prepared in 20 mm thickness, its back temperature was stable below 180°C in fire test with its front surface burned by the fire at 950°C-1050°C, but its compressive strength was 4.22 MPa and its impact strength was just 0.43 kj/m~2 Whereas the back temperature of the complex material Al_2(SiO_3)_3 fiber/resol was stable below 140°C under the same test condition and its density and physical strength can be control. The compressive strength of the complex material Al_2(SiO_3)_3 fiber/resol was between 5.0 MPa and 30.0 MPa versus the density between 0.75 g/cm~3 and 1.05 g/cm~3 while its impact strength was hardly influenced by the density. The thermal coefficient of the material through the fire test became lower. The analysis of its structure and thermal behavior show the complex material prepared possesses the function of active high temperature resistant insulation.