1results about How to "Reduce heat release" patented technology

The invention relates to the technical field of polymethyl methacrylate, and discloses a flame-retardant polymethyl methacrylate material and a preparation method thereof.The flame-retardant polymethyl methacrylate material is obtained by reacting polymethyl methacrylate, a hydroxyl-terminated flame retardant and p-toluenesulfonic acid. The linear polymethyl methacrylate is crosslinked into a three-dimensional network structure, so that the crosslinking degree between molecular chains is enhanced, the molecular chains are not easy to slip under stress, good structural stability is maintained, and the polymethyl methacrylate has high tensile strength and bending strength. The flame retardant contains piperazine rings and phosphate structures, forms an intumescent flame-retardant system, generates phosphoric acid substances, nitrogen and other gases during combustion, promotes dehydration of a matrix to form an intumescent carbon layer, isolates oxygen, prevents heat conduction, inhibits the combustion process, remarkably reduces the peak value of the heat release rate and the total heat release amount, and has excellent flame-retardant performance.