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1 – 1 of 1Fan Yang, Jihui Wang, Changzeng Wang, Junlei Chen and Anxin Ding
In order to find an appropriate method to synthesize a new high-efficiency flame retardant for epoxy resin.
Abstract
Purpose
In order to find an appropriate method to synthesize a new high-efficiency flame retardant for epoxy resin.
Design/methodology/approach
In this work, a flame retardant with heterocyclic groups, HOMP, was acquired after removing the obstacle from triazines which was not readily soluble. The molecular structure, thermal and flame retardant properties were fully characterized and analyzed. Also, the mechanism was researched through multi-methodologies. As well, the authors evaluated the effects of HOMP on mechanical properties.
Findings
The results suggested that HOMP helped extinguish the combustion of specimens and could reach an LOI value of 29.2% and the V0 level in the UL-94 test with a phosphorus content of only 0.6wt%. With respect to the mechanism, HOMP was a gas-phase flame retardant and helped generate a thicker carbon protective coating. However, for the mechanical properties, the addition of HOMP enhanced the compressibility, while the tensile strength decreased significantly.
Originality/value
The approach not only simplified the operations but also obtained HOMP with excellent flame retardant properties.
Details