Home page

Frequently asked 1uestions about aluminum hydroxide flame retardant

Jan 30,2024

The most common inorganic flame retardants are hydroxides or aluminum and magnesium. Trivalent aluminum hydroxide (ATH) is currently the most widely used tonnage basis for flame retardants. Aluminum hydroxide flame retardant has the advantages of good accessibility, non-toxicity and low cost, and will have an increasing demand. Aluminum hydroxide flame retardants are mainly used in cables, rubber products, flame retardant wires, arc and carpet backing. In addition, aluminum hydroxide has the characteristics of absorbing a large amount of heat and being decomposable at 230℃. Aluminum hydroxide flame retardant is also used as a filler for various materials.

Aluminum hydroxide is widely used as an effective smoke suppressant in polymers such as ethylene vinyl acetate, polyester, PVC, acrylics, epoxy resins and rubber. Although it is inexpensive, it is usually required at up to 60% or more of the polymer, with higher loadings, since the flame retardant mechanism is based on the release of water, which is used to cool and dilute the flame zone. Magnesium hydroxide (MDH) is used for polymers with higher processing temperatures, and although it is stable, its maximum working temperature is only 300°c-500°c.

■

—

Jan 30,2024