6,6'-(1-phenylethane-1,2-diyl)bis(6H-dibenzo[c,e][1,2]oxaphosphinine) 6,6'-dioxide NEW

Product Introduction DI-DOPO organic phosphorus flame retardant is a novel additive-type DOPO-derived organic phosphorus flame retardant. Its symmetrical and regular chemical structure, along with uniform electron cloud distribution, endows it with lower dielectric constant and dielectric loss compared to traditional halogen-free flame retardants. The tightly packed molecular structure of the product results in superior heat resistance. It is the optimal halogen-free flame retardant for high-frequency and high-speed copper-clad laminates. DI-DOPO contains up to 13.5% phosphorus, with two P-C bonds in its chemical structure. Its initial decomposition temperature is 351°C, and the temperature for 5% mass loss is 382°C. It is suitable for specialty materials requiring high processing temperatures and 5G materials for high-frequency and high-speed applications.Superior Performance DI-DOPO exhibits excellent flame retardant properties compared to other flame retardants, with high phosphorus content, meeting the halogen-free flame retardant requirements of high-performance resins (such as hydrocarbon resins). As a solid additive-type flame retardant, DI-DOPO overcomes the migration issues of other liquid flame retardants within polymers. It is ideal for high-performance printed circuit board (PWB) epoxy resin insulation materials.