Fire and environmental protection in the search for a balance between the future development of flame retardant is an important node. With the growing awareness of environmental protection, safety and health, countries around the world began to focus on environmental protection and fire retardant as research and development and application, and has achieved some results. Flame retardants according to the effective element classification, can be divided into phosphorus, chlorine, bromine and antimony, aluminum, boron-based flame retardants. According to the effective elements of flame retardant can be divided into flame retardant halogen-free flame retardants, brominated flame retardants, halogen-phosphorus synergistic flame retardants and other flame retardants, these environmentally friendly flame retardants have a broad application prospect.

 

　　Environmental protection flame retardant one: Halogen-free flame retardant

Halogen-free, low-smoke, low toxicity of environmentally friendly flame retardant has been the pursuit of the goal in recent years, some of the world's supply of flame retardants and application of halogen-free flame retardant showed a high enthusiasm for halogen-free flame retardants and resistance Fuel material development has also put a lot of power. According to the analysis, the main varieties of halogen-free flame retardant phosphorus-based flame retardants and inorganic hydrates. The former mainly includes red phosphorus flame retardant, inorganic phosphate ammonium phosphate (app), ammonium dihydrogen phosphate, diammonium phosphate, phosphate and other organophosphorus non-halogen phosphate.

 

　　The latter mainly includes magnesium hydroxide, aluminum hydroxide, modified materials such as hydrotalcite and the like. Ammonium polyphosphate, hydrotalcite for the series of environmentally friendly and better market prospects on behalf of the product.

 

　　Environmental flame retardant two: bromine flame retardant

　　Brominated flame retardant production and use of more than 30 years of history, the current production of brominated flame retardants about 70 kinds, of which the most important decabromodiphenyl ether (dbdpo), tetrabromobisphenol a ( Tbbpa) and hexabromocyclododecane (hbcd) and so on. The first two of the production of brominated flame retardants accounted for about 50%. Some of the traditional brominated flame retardants due to increasingly stringent environmental requirements of the pressure, forcing users to find alternatives to bromine flame retardants, while promoting the advent of new flame retardant system. Polybrominated diphenyl ethers and other traditional brominated flame retardants market atrophy, brominated epoxy resin, decabromodiphenyl ethane and other environmentally friendly brominated flame retardant products provide a market space.

 

　　Environmental flame retardant three: halogen - phosphorus flame retardant

　　Such flame retardants are characterized by the simultaneous presence of bromine and phosphorus or bromine, phosphorus and nitrogen atoms in the molecule. In the flame retardant performance synergies with each other; molecular bromine content is relatively low, the combustion process with less smoke, harmful gas volatile less; a certain degree of bromine content can improve the general phosphate esters Flame retardants have high volatility, poor resistance to migration and poor heat aging resistance. The main products include dibromodiphenylglycerol (dbnpg), dibromo-octylpentanediol phosphate and dibromo-octylpentanediol phosphate ester cyanamide salts and so on. The halogen-phosphorus flame retardants can complement each other by using different action mechanisms to achieve synergistic results.