DETAILED NOTES ON WHAT IS SPANDEX YARN

Chemical path to polyurethane polymer used in manufacture of spandex. Spandex is especially composed of a polyurea derived from your response of the diol and a diisocyanate. Two courses of spandex are outlined via the "macrodiols". 1 class of macrodiols could be the oligomer manufactured from tetrahydrofuran (i.The percentage of set defines the org