EVERYTHING ABOUT SPANDEX YARN HUB

Chemical route to polyurethane polymer used in manufacture of spandex. Spandex is mainly composed of a polyurea derived with the response of the diol and a diisocyanate. Two classes of spandex are described from the "macrodiols". One particular class of macrodiols could be the oligomer made from tetrahydrofuran (i.These company vendors are usually