As we all know, traditional materials generally choose to use phosphorus-nitrogen modified materials as flame retardants. In doing so, red phosphorus can interfere with plastic coloring. In shades, only black or red can be achieved with red phosphorus. In addition, its side effects can affect processing, and it is highly corrosive when used in high temperature and humid environments.

The lower the melt index of the plastic resin itself, the more flame retardants are used. The higher the melt index, the less flame retardant is used. In PE plastics, products with a melting index of 0.5-1.0 have the worst flame retardant effect, and the amount of flame retardant is 5-10% more than that of products with a melting index of 4-7.

In recent years, epoxy resin (EP) has been widely used in various packaging materials, coatings, civil engineering, construction, adhesives, electronics and aviation. The oxygen index of ordinary EP is only about 19.8%, which is a flammable substance. Therefore, how to improve the flame retardant performance of EP has attracted extensive attention of domestic and foreign researchers.

With the continuous advancement of science and technology, rubber products have been widely used in all walks of life. Wires and cables, rubber ropes, conveyor belts, rubber hoses, air ducts, rubber belts, and rubber products used in the electrical and electronic industries must meet the corresponding national standard requirements in terms of flame retardant properties and mechanical properties.

The lower the melt index of the plastic resin itself, the more flame retardants are used. The higher the melt index, the less flame retardant is used. In PE plastics, products with a melting index of 0.5-1.0 have the worst flame retardant effect, and the amount of flame retardant is 5-10% more than that of products with a melting index of 4-7.

At present, the cable industry is accustomed to refer to flame retardant (FireRetardant), halogen-free low-smoke (LowSmokeHalogenFree, LSOH) or low-halogen low-smoke (LowSmokeFume, LSF), fire resistance (FireResistant) and other cables with certain fire resistance properties are collectively referred to as fireproof cables.

With the continuous progress of polymer synthesis and processing technology, engineering plastics have penetrated into all fields of people's production and life. In many applications, the flame retardancy of plastics is an important performance index for the application of materials, and some plastic additives, such as halogenated flame retardants, may have potential hazards to the environment and human health, so they are To solve this contradiction, some users of engineering plastics gave up the application of these plastic additives, and turned to those engineering plastics that have flame retardant properties themselves.

The variety and grade of unsaturated polyester resin is Quito. In terms of product performance, the following types are used as the matrix of the composite material. 1. General purpose resin. The general-purpose resins are mainly o-phthalic unsaturated polyester resins, and also include some iso-phthalic unsaturated polyester resins, which are mostly used for hand lay-up of glass fiber reinforced plastic products.