Low-odor red phosphorus flame-retardant reinforced polyamide material

Abstract

The invention discloses a low-odor red phosphorus flame-retardant reinforced polyamide material. The low-odor red phosphorus flame-retardant reinforced polyamide material comprises polyamide resin, areinforced component and a red phosphorus flame retardant, and further comprises an odor absorption inhibitor. The odor absorption inhibitor is selected from modified diatomite or a compound of the modified diatomite and at least one of metallic oxide and an acid absorbent. The low-odor red phosphorus flame-retardant reinforced polyamide material is provided, generation of phosphine is inhibited in all directions and at multiple angles by addition of the odor absorption inhibitor, generated gas such as the phosphine is adsorbed fully, the odor grade of the red phosphorus flame-retardant reinforced polyamide material can be increased remarkably, and meanwhile, quite high mechanical property and flame retardant property are maintained.

Description

technical field [0001] The invention relates to the field of red phosphorus flame-retardant polyamide materials, in particular to a low-odor red phosphorus flame-retardant reinforced polyamide material. Background technique [0002] The red phosphorus flame retardant reinforced polyamide material has the following significant advantages: less addition, high flame retardant efficiency, and the flame retardant system can maintain excellent mechanical properties; in addition, the red phosphorus flame retardant polyamide system has a higher CTI value, which is It is widely used in electrical switches, low-voltage circuit breakers, connection contactors, sockets and other fields. [0003] However, due to the strong hygroscopicity of red phosphorus, under the action of water and oxygen, it is easily oxidized into a variety of oxyacids of viscous phosphorus (reacting with some inorganic minerals in the material to produce phosphate). These acids and salts are not only Migration fr...

AI Technical Summary

Problems solved by technology

However, due to the deep red limit of red phosphorus, most of the products made of red phosphorus flame-retardant reinforced polyamide materials are formulated into dark colors such as black or deep red. At the same time, the high-energy laser beam in the laser marking process will make the red phosphorus resistance The chemical reaction of the flammable agent causes the effect of laser marking red phosphorus flame retardant nylon to be unclear, showing a dark yellow or dark gray color

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