SPANDEX YARN CAN BE FUN FOR ANYONE

Chemical route to polyurethane polymer Employed in creation of spandex. Spandex is mainly composed of a polyurea derived with the response of a diol as well as a diisocyanate. Two lessons of spandex are described from the "macrodiols". One particular course of macrodiols is definitely the oligomer created from tetrahydrofuran (i.The primary spandex