BT-Epoxy


BT-Epoxy belongs to the group of thermoset resins used in printed circuit boards. It is a mixture of epoxy resin, a common raw material for PCBs and BT resins. BT stands for Bismaleimide-Triazine resin. This is in turn a mixture of bismaleimide, which is also used as a raw material for PCBs and cyanate ester. Three cyano groups of the cyanate ester are trimerized to a triazine ring structure, hence the T in the name. In presence of a bismaleimide, the double bond of the maleimide group can copolymerize with the cyano groups to heterocyclic 6-membered aromatic ring structures with two nitrogen atoms. The cure reaction occurs at temperatures up to 250 degrees C, and is catalyzed by strongly basic molecules like Dabco and 4-DMAP. Products with very high glass transition temperatures - up to 300 degrees C - and very low dielectric constant can be obtained. These properties make these materials very attractive for use in PCBs, which are often subjected to such conditions.

Applications of Epoxy

Epoxy resin coatings have long been used in marine, construction, and industrial environments for the high level of protection they offer as a final coating. That strength and clarity has increasingly been used by craftspeople and artists according to the Chicago Tribune. Such sort of flooring is discovered to be very beneficial in food industry where spillage of oil and food can produce the floor slippery. Epoxy flooring is highly advised for warehouse floors. While practical, it can also be stylish. It is very versatile and comes in a wide variety of colors too. It is a true low maintenance option. In such a situation, it is the best possible solution.