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A melamine-resin plate A melamine-resin ladle. Melamine resin is often used in kitchen utensils and plates (such as Melmac). Because of its high dielectric constant ranging from 7.2 to 8.4, melamine resin utensils and bowls are not microwave safe. [3] During the late 1950s and 1960s melamine tableware became fashionable.
Marking of product made of Melamine. Melamine / ˈ m ɛ l ə m iː n / ⓘ is an organic compound with the formula C 3 H 6 N 6. This white solid is a trimer of cyanamide, with a 1,3,5-triazine skeleton. Like cyanamide, it contains 66% nitrogen by mass, and its derivatives have fire-retardant properties due to its release of nitrogen gas when ...
In 1938, melamine thermosetting resin was developed by American Cyanamid Company. It resisted heat, abrasion and moisture better than phenolic or urea resins and could be used to make more colors; soon after, the Formica Corporation was buying the entire output of melamine from American Cyanamid.
Some resins (i.e., glues) used in producing composite wood products may contain formaldehyde. [4] As of 2021, “the wood panel industry uses almost 95% of synthetic petroleum-derived thermosetting adhesives, mainly based on urea, phenol, and melamine, among others”. [5] [6]
Left: individual linear polymer chains Right: Polymer chains which have been cross linked to give a rigid 3D thermoset polymer. In materials science, a thermosetting polymer, often called a thermoset, is a polymer that is obtained by irreversibly hardening ("curing") a soft solid or viscous liquid prepolymer (). [1]
Adding urea to MF resins has been shown to lower the amount of free formaldehyde below the legal limit and is often used for this purpose. [1] Another complication with MF resins is the low solubility of melamine in water. [16] Because of this and the free formaldehyde content, MF resins are not used as commonly in the field of wood modification.