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Structural characteristics of curing agent-Ningxia curing agent Manufacturers
Edit:Ningxia Runshengfu Chemical Co., Ltd.   UpDate:2019-02-25

Structural characteristics of curing agent-NingxiaCuring Agent Manufacturers

The curing agent, also known as hardener, curing agent or modifier, is a kind of substance or mixture that enhances or controls the curing reaction. Resin curing is through condensation, closed-loop, addition or catalysis and other chemical reactions, so that thermosetting resin can undergo irreversible changes in the process, curing is done by adding curing (crosslinking) agent. Curing agent is an essential additive, whether it is as a binder, paint, castable need to add curing agent, otherwise epoxy resin can not solidify. The varieties of curing agent have great influence on the mechanical properties, heat resistance, water resistance and corrosion resistance of the curing matter.

The curing agent, also known as hardener, curing agent or modifier, is a kind of substance or mixture that enhances or controls the curing reaction. Resin curing is through condensation, closed-loop, addition or catalysis and other chemical reactions, so that thermosetting resin can undergo irreversible changes in the process, curing is done by adding curing (crosslinking) agent.

The curing agent is classified according to chemical composition 1. aliphatic amines such as vinyl trimethylamine DETA piperazine AE 2. Aromatic amines such as Phenylenediamine M-PDA MPD two P-diphenylmethane DDM HT-972 DEH-50 3. amide amine 4. Latent curing amine 5. Urea substitutes for the.

The curing temperature of the curing agent has a great relationship with the heat resistance of the curing matter. Similarly, in the same type of curing agent, although it has the same functional base, but because of the different chemical structure, its properties and curing properties are also different. Therefore, it is very important for the selection of curing agent to fully understand the characters and characteristics of polyamine curing agent with the same functional base and different chemical structure.

In terms of hue, the lipid ring is shallow and basically transparent, while the degree of coloring of aliphatic and aromatic families is quite significant. In terms of viscosity, there are also very different, lipid ring family is only 0 PA s, and polyamide is very viscous, up to several PA s, aromatic amines are mostly solid. The application period is exactly the opposite of curing, the aliphatic reactivity is high, while the lipid ring family, amide, aromatic family decreased in turn.