3 Combustion methodCombustion method is a method of synthesizing materials by combustion of precursors. When the reactants reach the ignition temperature of the exothermic reaction, ignition in some way, the subsequent reaction that is maintained by the heat released, the combustion products are the

1 high-temperature solid-phase methodThe use of high-temperature solid-phase reaction method for the preparation of long afterglow materials is a more traditional method, this method is more widely used. In general, the general operation of the solid-phase reaction is to solid powder as raw material

Evacuation signs should be made of non-combustible materials, otherwise they should be outside with a protective cover made of glass or other non-combustible transparent materials. Cover. In other words, except for the signs made of aluminum alloy and other non-combustible materials as the base mate

Article 1028 of the "Fire Code for Building Design" stipulates that the evacuation aisles and main evacuation routes of the dance and entertainment venues, underground stores and the ground or the wall near the ground should be set up with luminous evacuation signs. The design of high-rise civil bui