What does curing agent do?
A curing agent is a substance that is used to harden a surface or material. It is typically applied to polymer surfaces to facilitate the bonding of the molecular components of the material. The stronger the molecular bonds are, the harder the material surface is.
What is latent curing agent?
One-package epoxy resins require a so-called latent curing agents which does not react with epoxy resins at room temperature, but react with epoxy resins on heating. Representative compounds which have been proposed as latent curing agent is dicyanodiamide(DICY).
What is hardener used for?
In some mixtures a hardener is used simply to increase the resilience of the mixture once it sets. In other mixtures a hardener is used as a curing component. A hardener can be either a reactant or a catalyst in the chemical reaction that occurs during the mixing process. A hardener may also be known as an accelerator.
What is the curing process?
Curing is a process during which a chemical reaction (such as polymerization) or physical action (such as evaporation) takes place, resulting in a harder, tougher or more stable linkage (such as an adhesive bond) or substance (such as concrete).
How is curing done?
It’s done by spraying or sprinkling water or curing agents over the concrete surface to ensure that the concrete surface is continuously moist. Moisture from the body of concrete is retained from evaporating and contributes to the strength-gain of concrete.
Which chemical is used for curing?
Epoxy resins are typically cured by the use of additives, often called hardeners. Polyamines are often used. The amine groups ring-open the epoxide rings. In rubber, the curing is also induced by the addition of a crosslinker.
Which is the most common curing agent for elastomers?
Although the following is far from a complete list, the most common curing agents can be classified as follows: 1. Aliphatic polyamines and derivatives. These include materials such as ethylenediamine, diethylenetriamine, triethylenetetramine, tetraethylenepentamine, and several cycloaliphatic amines.
What is another name for hardener?
In this page you can discover 10 synonyms, antonyms, idiomatic expressions, and related words for hardener, like: zinc-oxide, thickener, , resin, red-lead, linseed-oil, thixotropic, plasticizer, epoxy and degrease.
What is a cure period?
cure period. A specified amount of time needed to correct a default or breach of contract.