What are the flame retardants for nylon?

The halogen-free flame retardants widely used in nylon are red phosphorus and melamine salts.Red phosphorus has high flame retardant efficiency and can improve the arc resistance of products, but its storage and color limitations greatly limit its application in nylon, generally only used in nylon 6.Another halogen-free flame retardant used in nylon is melamine salts, mainly melamine urates and phosphates.They have good flame retardant efficiency, but poor thermal stability, and because of easy absorption of moisture products in the humid environment of poor electrical performance.

Nylon is a thermoplastic resin with repeated amide group (-nhco -) on the main chain.Nylon has good mechanical properties, electrical properties, heat resistance, toughness, oil resistance, self-lubrication, chemical resistance and other excellent properties, widely used in various fields.

Flame retardant nylon classification:

1. Halogen-free flame retardant nylon

Halogen-free flame retardant nylon. The halogen-free flame retardant widely used in nylon is red phosphorus and melamine salts. Halogen-free flame retardant nylon products have excellent flame retardant performance and the flame retardant level reaches UL94V.Grade I, with low precipitation, anti-drop, high electrical performance and good heat resistance, high CTI value, good electrical performance, high impact strength, environmentally friendly, environmental protection.Suitable for electrical connectors.The flame retardant properties of composite materials were improved by adding bromine flame retardants or halogen-free flame retardants of European ROHS standard.Including UL - 94V - O class test and V - 1, V - 2 class test.This granular nylon can withstand a processing temperature of 500F(260 ° c).

2. Enhanced flame retardant nylon

Glass fiber reinforced filling series are PA materials reinforced with different contents of glass fiber and mineral powder, mainly including two series: glass fiber reinforced filling PA6 and glass fiber reinforced filling PA66, which have high strength, high rigidity, high heat resistance, good dimensional stability and forming technology.Can be molded by injection, molding, extrusion and other methods, widely used in automotive, electrical and other industries.