Facts About cotton spandex yarn Revealed
Chemical path to polyurethane polymer Employed in production of spandex. Spandex is mainly composed of a polyurea derived within the reaction of a diol plus a diisocyanate. Two lessons of spandex are described from the "macrodiols". One particular course of macrodiols is the oligomer created from tetrahydrofuran (i.The initial spandex fibers ended