Product introduction
Phoretar312 is a kind of phosphorus - free halogen - free combustion curing agent. It is cured by reaction with common epoxy resins, and is grafted onto epoxy resin through the reaction itself, so as to achieve the purpose of curing epoxy resin and improving the flame retardancy of epoxy resin. In order to cure epoxy resin and improve the flame retardancy of epoxy resin, the usual way is to react with epoxy resin and flame retardant epoxy resin first with DOPO and other flame retardants, then solidify with phenolic {Phenol novolac} or chloramine {DICY} as curing agent.


Product use
It is suitable for printed circuit board and copper clad plate.
However, the flame retardant epoxy resin prepared by this method tends to become brittle in wet environment, and the thermal properties of epoxy resin are reduced sharply. When mixed with other epoxy resins, the overall flame retardancy of the mixed epoxy resin decreased with the decrease of phosphorus content.
Phoretar 312 is a high-end technology and innovative product in the field of flame retardant epoxy resin preparation. By giving the flame retardancy to the curing agent, he made up for the defects in the flame retardant of the preparation group. He did not increase the flame retardancy of the epoxy resin and improved the thermal properties of the epoxy resin. Reduce the moisture absorption rate, and can also be used with a variety of epoxy resin. Not only the ordinary epoxy resin, but also the high end epoxy resin can also be used together.


Product features
A halogen-free flame retardant curing agent, UL-94 experiment can reach V-0.


Product specification
Colorless transparent - light brown
Phosphorus content {solid} 8.7-9.1%
Hydroxyl {-OH} equivalent {g/eq} 325-375
Solid content of {%} 54-60%
Viscosity {cps, @25 C} 400-2,00
Solvent 1-methoxy-2-propanol>30%, n-BuOH<10%


Packing specification and transportation
Packaging specifications: UN (200kg net).
Hazard grade and packaging classification: 3.PG III
Dangerous goods number: UN1866