Red phosphorus flame retardant

Red phosphorus flame retardant is a flame retardant represented by red phosphorus, which is purple or slightly brown amorphous powder. It is an inorganic halogen-free flame retardant with excellent thermal stability and non-volatility. No corrosive gas, good flame retardant effect, good electrical insulation and so on.

Advantages of red phosphorus flame retardant

Red phosphorus has high flame retardant efficiency, low cost and does not contain halogen. It can be widely used in flame retardant of various resins, unsaturated resins, hot melt adhesives, rubber, coatings and other products. There is no danger of toxicity during use, the addition amount is small, it does not dissolve, and it has the advantages of high melting point.

Halogen-free, low-smoke, low-toxic environment-friendly flame retardants have always been the goal pursued by people.Among the phosphorus series flame retardants, red phosphorus may have the best flame retardant effect and the highest flame retardant efficiency. In theory, red phosphorus is a complete phosphorus element, and the phosphorus content can reach 100%. Although the phosphorus content has decreased after coating, However, it is still far higher than other phosphorus compounds. In addition, the coated red phosphorus has more convenient storage and transportation in terms of moisture absorption and processing thermal stability. Therefore, red phosphorus has become the only thermoplastic material in the phosphorus series flame retardants. The most widely used.

Disadvantages of red phosphorus flame retardants

First of all, the color must be red or black, which greatly limits its application in many materials.Secondly, although the red phosphorus has been coated, it may inevitably cause "fires" during use due to various reasons limited to the process and raw materials. What's more serious is that the processing characteristics of red phosphorus are relatively poor, the compatibility with resin is not very good, the mechanical properties of the processed materials are very poor, and the "stinky" taste in the production process makes it difficult to produce high-grade red phosphorus promoted in the material.

Shijiazhuang Qibo Chemical Co., Ltd. is a large-scale high-tech enterprise dedicated to the research, development, production and sales of plastic flame retardant.