spandex yarn manufacturing process Options
Chemical route to polyurethane polymer Employed in manufacture of spandex. Spandex is especially composed of a polyurea derived through the reaction of a diol along with a diisocyanate. Two courses of spandex are described through the "macrodiols". A person class of macrodiols is the oligomer developed from tetrahydrofuran (i.Spandex can be a polym