Flame-retardant high-temperature-resistance polyamide composition and preparation method thereof

Abstract

The invention discloses a flame-retardant high-temperature-resistance polyamide composition and a preparation method thereof. The composition is characterized by being prepared from the following components in parts by weight: 40-70 parts of polyamide, 5-15 parts of polyester, 0-10 parts of an impact-resistant modifier, 15-60 parts of a filler, 5-200 parts of a fire retardant and 0.2-1 part of a thermal stabilizing agent. According to the method, polyester and polyamide are mixed and modified, the polyamide carbonizing capability can be improved by means of polyester, the flame retarding performance of polyamide can be improved, the usage amount of flame retardant can be reduced, and further the attenuation of high-temperature aging resistance caused by introducing massive flame retardant can be further reduced; the alloy fluidity is further improved by using polyester, and the mold filling capability in the material injection-molding process can be improved. The flame-retardant high-temperature-resistance polyamide composition is especially applicable to the most advanced fields of precise electronic appliance parts, automobile engine compartment high-temperature high-humidity application environment, aerospace and the like.

Description

technical field [0001] The invention relates to the field of polymer materials, in particular to a flame-retardant and high-temperature-resistant polyamide compound and a preparation method thereof. Background technique [0002] Due to their excellent mechanical properties, chemical resistance, processability, and thermal and oxidative aging resistance, polyamide compositions are often used in the fields of electronic appliances, automobiles, aerospace, and electric tools that have strict requirements on the working environment. Applications below the hood are particularly common. With the development of engine miniaturization, turbocharging replaces natural air intake to increase the intake air volume of the engine, thereby increasing the power and torque of the engine. This forces the high temperature resistance level of the materials used around the engine to be continuously upgraded, and the ambient temperature around the engine can reach an operating temperature above ...

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Problems solved by technology

At the same time, it also has a high flame retardant level, and there are few reports on this kind of flame retardant and high temperature resistant polyamide materials.

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