Flame retardant PBDE (polybrominated biphenyl)

- Aug 15, 2018-

Poly Brominated Diphenyl Ethers (referred to as PBDEs), there are 209 homologues such as tetrabromodiphenyl ether, pentabromo, hexabromo, octabromo and decabromo. Its commercial polybrominated diphenyl ethers are a group of diphenyl ether mixtures with different numbers of bromine atoms and are therefore collectively referred to as polybrominated diphenyl ethers.


The largest use of polybrominated diphenyl ethers is as a flame retardant, which is added to the composite during the manufacturing process to improve the fire resistance of the product.


Among them, decabromodiphenyl ether (PBDE-209) is a compound containing the largest number of bromine atoms in the polybrominated diphenyl ether family. Because of its low price and superior performance, acute toxicity is the lowest among all brominated diphenyl ethers, so it is global. It is the most widely used, such as in various electronic appliances and automatic control equipment, building materials, textiles, furniture and other products. According to statistics, at present, decabromodiphenyl ether accounts for more than 75% of the total amount of flame retardants.


Laboratory studies have shown that PCBs can disrupt the balance of neuronal cell-linked systems. Preliminary data from the California Environmental Protection Agency suggest that PBDE may disrupt some of the neural communication systems with similar transmission mechanisms.


Numerous studies have also shown that PBDEs are stable in the environment and are enriched along the food chain, eventually accumulating in the human body through food, breast milk, the atmosphere and room dust. In addition to a large number of basic data on body load (blood, breast milk and adipose tissue PBDEs levels, etc.), few studies have shown that PBDEs have harmful health effects on human exposure, but a large body of laboratory evidence has shown that PBDEs have experimental animals. Liver and kidney toxicity, reproductive toxicity, embryo toxicity, neurotoxicity and carcinogenicity can interfere with endocrine and alter the instinctive behavior of animals, and may have potential developmental neurotoxicity to humans, especially children.