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Dicyandiamide C2H4N4 CAS 461-58-5 - Leading China Suppliers and Factory for Quality Chemicals
Dicyandiamide, abbreviated as DICY or DCD, is a dimer of cyanamide and also a cyanide derivative of guanidine. It is a white crystalline powder. It is soluble in water, alcohols, ethylene glycol and dimethylformamide, and is almost insoluble in ethers and benzene. It is non-flammable. It is stable when dried.
Dicyandiamide curing agent belongs to one of the earliest types of latent curing agents that are heated for curing. It is in solid form at room temperature and insoluble in epoxy resin. It is dispersed in epoxy resin in the form of microparticles and then undergoes heating reaction. Once heated to near the melting point, it begins to dissolve and rapidly react for curing.
Frequently Asked Questions
What is Dicyandiamide (DCD/DICY)?
Dicyandiamide is a dimer of cyanamide and a cyanide derivative of guanidine, appearing as a stable white crystalline powder.
What are the solubility characteristics of DICY?
It is soluble in water, alcohols, ethylene glycol, and dimethylformamide, but almost insoluble in ethers and benzene.
How is Dicyandiamide used as a curing agent?
It acts as a latent curing agent for epoxy resins. It remains solid and insoluble at room temperature and only reacts once heated near its melting point.
Is Dicyandiamide flammable or unstable?
No, Dicyandiamide is non-flammable and remains stable as long as it is kept in a dry condition.
What is the physical form of DCD in epoxy resin mixtures?
It is dispersed within the epoxy resin as microparticles rather than being dissolved, until the heating process begins.
When does the curing reaction trigger?
The reaction triggers rapidly once the mixture is heated to a temperature close to the melting point of the Dicyandiamide.