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Compounding with APP-based flame retardants in polypropylene is described in. [7] Further applications are thermosets, where APP is used in unsaturated polyesters and gel coats (APP blends with synergists), epoxies and polyurethane castings (intumescent systems). APP is also applied to flame retard polyurethane foams.
A large group of the studied flame retardants were found to have a good environmental and health profile: ammonium polyphosphate (APP), aluminium diethyl phosphinate (Alpi), aluminium hydroxide (ATH), magnesium hydroxide (MDH), melamine polyphosphate (MPP), dihydrooxaphosphaphenanthrene (DOPO), zinc stannate (ZS) and zinc hydroxstannate (ZHS).
A fire retardant is a substance that is used to slow down or stop the spread of fire or reduce its intensity. This is commonly accomplished by chemical reactions that reduce the flammability of fuels or delay their combustion. [1] [2] Fire retardants may also cool the fuel through physical action or endothermic chemical reactions.
Aluminium diethyl phosphinate is used as a halogen-free flame retardant for polyamides, polyesters, thermoset resins (e.g. epoxies) in electrical engineering and electronics (E&E) applications for switches, plugs, PC fans, and structural and housing components. Mobile phones, washing machines, and airplane parts, among others, contain the product.
Research on fire-retardant polymers was bolstered by the need for new types of synthetic polymers in World War II. The combination of a halogenated paraffin and antimony oxide was found to be successful as a fire retardant for canvas tenting. Synthesis of polymers, such as polyesters, with fire retardant monomers were also developed around this ...
Until the late 1970s, TDCPP was used as a flame retardant in children’s pajamas in compliance with the U.S. Flammable Fabrics Act of 1953. This use was discontinued after children wearing fabrics treated with a very similar compound, tris(2,3-dibromopropyl) phosphate, were found to have mutagenic byproducts in their urine.
The image above shows the fire line near Piuma Road in Malibu, with red flame retardant visible on the ground. Normally, QRF's mobile retardant plant — the apparatus on the ground that combines ...
Fire-retardant materials should not be confused with fire-resistant materials. A fire resistant material is one which is designed to resist burning and withstand heat. An example of a fire-resistant material is one which is used in bunker gear worn by firefighters to protect them from the flames of a burning building.