Recently, the supply of phosphate ester flame retardants is tight or even unavailable. It has always been thought that many products in the market are in oversupply, but many products in the flame retardant industry are in short supply.

Polycarbonate (PC) is a thermoplastic engineering plastic with excellent mechanical properties, good heat resistance and low temperature resistance, stable electrical properties and good dimensional stability. However, PC has poor processing fluidity, is sensitive to notches, is prone to stress cracking, has poor chemical resistance, and is expensive, which limits its application range. Compatible toughener ST-1 can solve the problem.

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.

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.

Halogen-free flame retardants, as the name suggests, do not contain halogens and have relatively good flame retardant effects. The main components are phosphorus-based compounds and metal hydroxides. It has the advantages of non-volatile and no corrosive gas during combustion, and is called a pollution-free flame retardant. In addition, there are several new types of halogen-free flame retardants such as silicon series and nitrogen series. Halogen-free flame retardants have become new products that conform to the development trend of international standards for flame retardants because of their clean, environmentally friendly and pollution-free advantages.

The burning and flame retardant burning of rubber is a natural phenomenon in the objective world, such as lightning strikes can cause forest fires. Combustion is also an artificial phenomenon required in human life or production. For combustion to occur and proceed, three conditions are required, none of which are indispensable. Any substance at a certain temperature can ignite only after the ambient temperature reaches the ignition point.

Triphenyl phosphate (flame retardant TPP) is a phosphorus-containing compound, which can be used as a halogen-free environment-friendly flame retardant for dissolving in organic solvents. White, odorless crystalline powder, slightly deliquescent; vapor pressure 0.01kPa/20℃; flash point 220℃; melting point 47-53℃;