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MEK PEROXIDES

Description

MEK peroxides, also known as methyl ethyl ketone peroxides, are organic peroxide compounds widely used in polymer and resin industries. These potent initiators play a crucial role in the curing process of unsaturated polyester resins and vinyl ester resins. MEK peroxides are typically supplied as colorless to slightly yellow liquids, often diluted in dimethyl phthalate or other phlegmatizers for safety and ease of handling.

In skincare formulations, MEK peroxides are not typically used due to their highly reactive nature and potential skin irritation. However, their chemical properties make them valuable in industrial applications. MEK peroxides function by decomposing into free radicals when exposed to heat or certain metal salts, initiating polymerization reactions.

The concentration and type of MEK peroxide used can significantly impact curing time and final product properties. Formulators must carefully consider factors such as gel time, peak exotherm temperature, and cure speed when selecting the appropriate MEK peroxide for a specific application. Proper storage and handling are essential, as these compounds are thermally unstable and can decompose explosively if mishandled. Safety measures, including temperature control and use of stabilizers, are crucial when working with MEK peroxides.