Dicumene to the structural particularity, the C-C bond between the corresponding quaternary carbon atoms is not stable, and it is easy to dissociate to form free radicals. The double cumyl group and its derivatives are attributed to a free radical initiator having an unstable C-C bond, and are mainly used as a flame retardant synergist and a cross-linking copolymerization catalyst. Compared with general free radical initiators such as peroxides and azo compounds, it has high stability and is safe to use.
As a flame dicumene synergist, on the one hand, the halogen chain is transferred and combined by forming a radical; on the other hand, when the external temperature is raised, the halogen radical is generated to achieve a flame retardant effect. The amount of DMDPB added has little effect on the tensile strength of the system. The elongation at break of the system decreases with the increase of the amount of DMDBP. It may be due to the increase of the amount of DMDBP added. The reason for the deterioration.
Although it is a chemical substance, it is rarely seen in life. Its main function is as a flame retardant, which can achieve good results. Because of its special nature, it also has a system. Tensile properties.
As a synergistic agent for flame retardant of polyolefin plastics, it can replace antimony trioxide in bromine-based flame retardant system, increase the flame retardant effect, and increase the physical and mechanical properties of plastics while reducing the amount of flame retardant. A graft catalyst for polystyrene and polypropylene.www.china-zhufengchem.com