What are the four common types of curing agents?

Curing Agents

Table of Contents

Aliphatic polyamines and derivatives.
Modified aliphatic polyamines.
Aromatic amines.
Acid anhydrides.
Carboxylic acids.
Lewis acid and base type curing agents.
Aminoplast and phenoplast resins.

What is polyamine hardener?

Polyamine-based hardeners are used to cure epoxy resins at room temperature. These hardeners are made from an organic molecule consisting of two or more amine groups. They are used by the composites industry. Polyamine hardeners are corrosive and some are moderately toxic to the skin.

What is hardener in epoxy?

Epoxy resin systems consist of two parts, an “A” and a “B” side. The B side, also known as the “hardener”, is the epoxy curing agent; the curing agent is responsible for reacting with the epoxy groups contained in the epoxy resin A side. Reaction of curing agents with epoxy resins results in hard, thermoset materials.

What is the hardener in epoxy?

The B side, also known as the “hardener”, is the epoxy curing agent; the curing agent is responsible for reacting with the epoxy groups contained in the epoxy resin A side. Reaction of curing agents with epoxy resins results in hard, thermoset materials.

What is polyamine epoxy?

A polyamide epoxy is a polymer that employs a polyamide resin as a curing agent. A polyamide in an epoxy is essentially an organic compound very similar to ammonia, but has had one of its hydrogen atoms replaced with another atom. A polyamide epoxy is commonly used as a coating or an adhesive.

What is difference between polyamide and polyamine?

Note the Difference: Polyamide cured epoxies provide better flexibility, better abrasion resistance, improved corrosion resistance, and are relatively safer to use whereas polyamine-cured epoxies are tough, more chemical resistant, brittle, and provide improved abrasion resistance.

What is the main ingredient in epoxy?

Epoxy resins usually comprise four ingredients: the monomeric resin, a hardener, an accelerator and a plasticizer. Manufacturers generally provide a standard formulation, however the hardness and flexibility of the polymerized block can be manipulated by varying the amount of the individual components.