High glow-wire ignition temperature halogen-free flame-retardant reinforced nylon composite and preparation method thereof

Abstract

The invention discloses a high glow-wire ignition temperature halogen-free flame-retardant reinforced nylon composite, the composite comprises the following raw materials: by mass, 33 ~ 68 parts of PA66 (polyamide 66) resin, 6 ~ 10 parts of a flame retardant A, 6 ~ 10 parts of a flame retardant B, 2 ~ 8 parts of a complex flame retardant agent, 15 ~ 30 parts of glass fiber, 3-6 parts of a toughening agent, 0.1-0.5 part of an antioxidant and 0.1-1 part of a lubricant. The high-efficiency low-smoke non-toxic halogen-free flame-retardant reinforced nylon composite is prepared by multiple flame retardant effects of gas phase and condensed phase flame retardants, the high-efficiency low-smoke non-toxic halogen-free flame-retardant reinforced nylon composite keeps original flame retardant effects of a composite, and at the same time further enhances the glow wire ignition temperature, the glow wire ignition temperature of a 3.0mm sample strip reaches 800 DEG C above, namely reaches non-ignition flame retardant standards, and the high glow-wire ignition temperature halogen-free flame-retardant reinforced nylon composite can be widely used in the production of binding posts, connectors, sockets, switches, electrical appliance housings, parts in home appliances, and the like.

Description

technical field [0001] The invention relates to a nylon material, in particular to a halogen-free flame-retardant reinforced nylon composite material with high glow wire ignition temperature, and also relates to a preparation method of the composite material. Background technique [0002] Due to the excellent mechanical strength, impact performance, heat resistance, wear resistance, self-lubrication, processability and mechanical balance of glass fiber nylon materials, they are widely used in industries such as electronics, communication equipment and home appliances . However, nylon materials are flammable materials, which are easy to cause fires. With the improvement of people's life safety awareness, the fire prevention and environmental protection requirements of nylon materials are also continuously improved, and it has gradually become a hot spot and an important direction for the development of nylon materials. [0003] In the prior art, fire prevention is usually ...

AI Technical Summary

Problems solved by technology

However, nylon materials are flammable materials, which are easy to cause fires. With the improvement of people's life safety awareness, the fire prevention and environmental protection requirements of nylon materials are also increasing, and gradually become a hot spot and an important direction for the development of nylon materials.

[0003] In the prior art, fire prevention is usually achieved by adding flame retardants, and most nylon materials are prepared with brominated flame retardants and antimony trioxide as flame retardants. Although the materials obtained by using such flame retardants It has a good flame retardant effect. However, once the material is burned, it will emit a large amount of toxic gas and smoke, which seriously endangers people's physical and mental health and cannot meet people's needs for safety.

[0004] The current nylon material not only requires that it can be extinguished quickly when it burns at a very high temperature, but also requires that it cannot be ignited and does not produce an open flame. Therefore, the glow wire ignition temperature of the material is also required to be higher and higher. However, currently on the market The glow wire ignition temperature of the halogen-free flame-retardant nylon material is not high, and it can only reach 750 ° C for 30 seconds without ignition

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