Halogenless composite fire retardant for polyolefine plastic
A technology of compound flame retardant and polyolefin, which is applied to the flame retardant of polypropylene. , Halogen-free composite flame retardants for polyolefin plastics, polyethylene field, can solve the problems of flame retardants that cannot be recycled, threaten human health, the environment and the next generation of descendants, and achieve the goal of suppressing smoke and hydrogen chloride generation, non-corrosive prices Effect
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Embodiment 1
[0018] Take 10 kg of aluminum hydroxide according to the proportioning ratio; 40 kg of brucite powder; 5 kg of whiteness coated red phosphorus; 2 kg of resorcinol diphosphate; Formulated as a halogen-free composite flame retardant.
Embodiment 2
[0020] Take 20 kg of aluminum hydroxide according to the proportioning ratio; 60 kg of brucite powder; 10 kg of whiteness coating red phosphorus; 3 kg of resorcinol diphosphate; 15 kg of ammonium polyphosphate; Formulated as a halogen-free composite flame retardant.
Embodiment 3
[0022] Take 30 kg of aluminum hydroxide according to the proportioning ratio; 80 kg of brucite powder; 15 kg of red phosphorus coated with whiteness; 5 kg of resorcinol diphosphate; Formulated as a halogen-free composite flame retardant.
[0023] The flame retardant works differently at different temperatures:
[0024] 1. Ammonium polyphosphate is heated and decomposed at 225°C to release ammonia and water vapor. The water vapor and non-combustible gas produced by the reaction make the molten system expand and foam, which can promote the formation of a non-flammable three-dimensional carbon layer on the surface of organic matter, which can reduce thermal decomposition. The generated combustible tar and low-molecular combustibles promote the generation of non-combustible gases. At the same time, pentaerythritol and acid are dehydrated and carbonized to form inorganic substances and charcoal residues. In addition, the non-volatile phosphorus oxide and polyphosphoric acid produc...
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