Shen Zhou City Hongda Hardware Products Co.,Ltd is a family owned
company, founded in 1998, loacated at Tang feng industry zone, Shen
Zhou. It has covered an area of 20 hectares, with a total asset of 20
million and more than 300 people with 80 engineering technicians, a
5-person research group, and a service group dedicated to provide the
best solutions. Gabion Wire Mesh,Heavily Galvanized Gabion,Galvanized Gabion Mesh,Gabion Basket Screen Shenzhou City Hongda Hardware Products Co.,Ltd , https://www.galvanziedwire.com
polymer additive,Flame Retardant
Product
Melamine Hydrobromide
Specifications
Appearance: white powder
Purity: 99.0% min
Moisture: 1.0% max
Ash: 0.5% max
Applications
PP
Â
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Model NO.: tech grade
Melamine Hydrobromide plastic additive as fire retardantThe fire retardant characteristics of additives based on mixtures of melamine hydrobromide-free radical initiator-basic bismuth carbonate (or antimony trioxide) are discussed on the basis of the dependence of oxygen index on composition in the case of polypropylene.
It is shown that the free radical initiator enhances the effectiveness of the fire retardant action of melamine hydrobromide. A further significant decrease of flammability, as measured by oxygen index, is induced by addition of the metal compound. Thus, polypropylene can be fire retarded with very small amounts of additive (<2%) without excessive formation of smoke which is typical of the most common halogenated additives. This seems to be due to a smoke suppressant activity of the melamine structure.
These additives act by a condensed phase mechanism which seems not to be limited to induction of extensive dripping of the polymer on burning.