Adding flame retardants to nylon resins can better solve the shortcomings of nylon's flammability and expand its application in the electrical, electronic and electrical industries. In terms of performance characteristics, flame retardant nylon and pure nylon have the following changes:

1. Mechanical properties generally decline No matter what kind of flame retardant is added, it will affect the mechanical properties of nylon, but red phosphorus and nitrogen flame retardant nylons are relatively better. For structural parts, flame retardant reinforced nylon can meet the needs;

2. Improved processing fluidity The addition of low-molecular compounds has a positive effect on improving the processing fluidity of nylon. Especially when a suitable dispersant is added, the fluidity of the material is greatly improved. It is worth mentioning that the nitrogen-based flame retardant nylon has particularly good fluidity;

3. The heat resistance has changed, and the heat resistance of bromine flame retardant nylon has decreased compared to pure nylon. Of course, this deficiency can be remedied by adding appropriate antioxidants. In addition, during the forming process, reduce the processing temperature as much as possible to avoid the problem of thermal oxygen aging of the material;

4. Friction resistance decreases, and the flame resistance of nylon will decrease after adding flame retardant. Therefore, flame retardant nylon is generally not suitable for use as a wear-resistant material.

The addition of flame retardants has a large impact on the mechanical properties of the product. Since most of the flame retardants are low molecular compounds, their compatibility with nylon is poor. Therefore, the addition of flame retardants will reduce the mechanical properties of nylon. With the increase of the amount of flame retardant, the impact strength and flexural strength of flame retardant PA6 and flame retardant PA66 show a downward trend. Whether the flame retardant is dispersed uniformly in flame retardant nylon has a certain effect on the flame retardant effect. Surface treatment can improve the adhesion and dispersibility between the flame retardant and the nylon substrate. It is beneficial to reduce the amount of flame retardants, which can reduce production costs and improve product mechanical properties.

Dole Chemical is a high-tech enterprise integrating R & D, production and sales of fine chemicals. The company has undergone considerable development in more than ten years. It is distributed throughout the country and serves more than 4,000 customers. It also cooperates with major universities in China to develop new products and introduces a large number of foreign advanced technology patents and equipment. In the halogen-free flame retardant industry, we are a leading developer, manufacturer and marketer, providing customized flame retardant application services to many well-known companies.