High temperature-resistant calcium alginate foaming flame-retardation material and preparation method thereof

The invention discloses a high temperature-resistant calcium alginate foaming flame-retardation material and a preparation method thereof, which belong to the technical field of a flame retardation material and its preparation. The method comprises the following steps: mixing sodium alginate and a percarbonate aqueous solution, adding manganese dioxide in a mixture, uniformly stirring the materials and performing standing on the materials under room temperature, performing complete foaming, finally, dumping reaction material liquid in moulding equipment and preparing the product with required shape, then introducing the product into coagulation bath for formalization until an ion exchange reaction is completed, cleaning the product with clear water, and drying the product to obtain the calcium alginate foaming flame-retardation material. The calcium alginate foaming flame-retardation material has the functions of flame retardation, heat insulation, shock absorption, sound absorption, absorption and insulation