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Dbu is a strong, sterically hindered amidine base that acts as a nucleophilic catalyst in the epoxy curing reaction.[7] the general mechanism involves the activation of either the epoxy group or the curing. Therefore, alkyl dbus are expected to be useful. Common curing agents include polyamines, polyphenols, anhydrides, and thiols
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These nucleophiles attack the electrophilic carbon in the epoxy group, initiating chain growth and crosslinking. Compared to the epoxy resin cured by dbu, the resins cured by the alkylated dbus showed higher gel fraction, volume shrinkage, and heat resistance In this article, we’ll dive deep into the world of epoxy curing with dbu, exploring its chemistry, mechanisms, advantages, and practical applications
Similarly, in epoxy resin systems, dbu functions as an efficient curing agent
It promotes the polymerization of epoxy monomers, transforming liquid resins into solid, durable materials. Possesses high glass transition temperatures and improved toughness. Highly efficient tertiary amine accelerator Used in electrical encapsulation and transfer moulding powders.
Curing agent description amicure dbue accelerator is a tertiary amine that functions as a cure accelerator for high performance epoxy resin systems.
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