| abstract |
The application relates to the field of fire doors, in particular to a wooden fire door and a processing method. The wooden fire door includes a wooden flame retardant layer and a flame retardant coating. The wooden flame retardant layer is made by pressing, and its raw materials include rock wool, wood fiber, adhesive, melamine, sepiolite powder, non-polar reinforcing material and polylactic acid. The flame retardant coating is obtained by drying the flame retardant slurry after coating. The flame retardant slurry includes water-based epoxy resin emulsion, foaming agent, antimony trioxide, expanded graphite, surfactant, other additives and water. . Through the above technical scheme, the fire door has a relatively low density, and at the same time, has good strength and strong fire resistance, which is convenient for processing and installation. In addition, the processing method of the wooden fire door includes the preparation of polylactic acid-sepiolite pellets, the pressing of the wooden flame retardant layer, the configuration and coating of the flame retardant slurry, the drying of the flame retardant slurry and the ultraviolet treatment to obtain the flame retardant Coating and grinding and polishing steps are more convenient to process. |