Aluminium and Magnesium Hydroxide

Aluminium hydroxide (ATH) and magnesium hydroxide (MDH) are two types of metal flame retardants that by absorbing heat and decomposing to release their water of hydration, they act as a flame retardant. This process has a lot of benefits, such as cooling both the polymer and flame, decreasing the rate of flame spread and amount of smoke generated, creating a protective metal oxide layer over the combustion stuff. Currently, aluminum hydroxide is the most widely used flame retardant; it is easy to incorporate into plastics but the major difference with MDH is the range of temperature decomposing, ATH decomposing temperature is 220 to 250 °C while MDH is decomposed over the range of 330 to 340 °C. Hence, MDH can be used in plastics processed at higher temperature than aluminum hydroxide, like polypropylene and engineering plastics; also it produces more char than ATH, and adsorbs significantly more heat from the combustion zone.
Kimya Pooyesh Baspar company is be honored to present these products in the variety of aggregation from (1 to 100 μ) and also in the form of with and without coating.