Flame retardant polyamide resin composition

Abstract

A flame retardant polyamide resin composition that excels in all of flame retardance, glow wire and antitracking characteristics and mechanical strength and excels in metal corrosion suppression, finding suitable application in electrical / electronic parts with metal contact point / terminal, such as connectors. The flame retardant polyamide resin composition is characterized by containing 100 partsby weight of polyamide resin (A), 10 to 60 parts by weight of salt (B) formed from an aminotriazine compound and at least one compound selected from the group consisting of sulfuric acid, pyrosulfuric acid and an organic sulfonic acid and at least one compound (C) selected from the group consisting of a hindered phenol compound, hydrotalcite and a hydroxide of alkaline earth metal, the mixing ratio of component (C) to component (B), (C) / (B), being in the range of 0.0005 to 0.2.

Description

Flame retardant polyamide resin composition technical field The present invention relates to a flame-retardant polyamide resin composition. In detail, it relates to a flame-retardant polyamide resin composition which is excellent in arc tracking resistance and glow wire characteristic as one of electrical safety of electric parts and electronic parts, and which is resistant to metal corrosion Also excellent, suitable for electrical and electronic components with metal contacts, metal terminals. Background technique Polyamide resins have been used in automotive parts, mechanical parts, electrical and electronic parts, and the like due to their excellent mechanical strength, heat resistance, and the like. Especially in recent years, in the use of electrical and electronic components such as connectors and plugs with metal terminals, switches and circuit breakers with metal contacts, the level of flame retardancy requirements has gradually increased, and the requirements are...

AI Technical Summary

Problems solved by technology

As described in Patent Document 2, when flame retardants such as melamine polyphosphate, melam (Melam) and melem (Melem) double salt, polymetaphosphate melamine, polyphosphate amide, etc. are used, there is a glow wire low sex problem

In addition, the thermoplastic resin composition described in the examples of Patent Document 3 may have low glow thread property and low tensile strength.

In addition, according to studies by the inventors of the present invention, it has been found that when electrical and electronic components are manufactured using a resin composition containing a sulfur-containing melamine-based flame retardant such as melamine sulfate, due to the heat generated during energization, etc., the Produce sulfate ions, sulfur dioxide, hydrogen sulfide and other metal corrosive gases, corrode metal contacts and terminals, resulting in poor conduction and other problems

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