“…In the past several decades, there have been various studies to improve the flame retardant property of LDPE. Although the halogenated flame retardants (FRs) exhibit excellent efficiency in improving the flame retardancy of polymers, 2 its applications are restricted due to the release of toxic gases and smoke during combustion 3,4 . Typical halogen‐free FRs such as metal hydroxides, 5,6 FRs containing phosphorus, 7,8 nitrogen‐containing FRs, 9,10 montmorillonite, 11–13 , etc have been used to reduce the burning rate, smoke release, and dripping of LDPE.…”