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What is an amino resin?

Mar 04, 2019

What is an amino resin?

The main function of amino resin (melamine-formaldehyde, benzoguanamine formaldehyde and urea formaldehyde (uranal) resin) in thermosetting coatings is to crosslink the main film-forming material molecules into a three-dimensional (stereoscopic) network through chemical reaction. structure. This network structure is obtained by reacting an amino resin molecule with a functional group on a molecule of a film-forming material and simultaneously undergoing a polycondensation reaction with other amino resin molecules. Amino resins are readily reacted with polymers having primary and secondary hydroxyl, carboxyl, and amide groups, and thus amino resins are commonly used in acrylic, polyester, alkyd, or epoxy based paint systems. Amino resins are also used in polyurethane systems as a coating additive to improve the overall performance of certain applications of coatings.

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