EXAMINE THIS REPORT ON COVERED SPANDEX YARN

Chemical route to polyurethane polymer Utilized in creation of spandex. Spandex is especially composed of a polyurea derived through the response of the diol along with a diisocyanate. Two courses of spandex are described by the "macrodiols". 1 class of macrodiols could be the oligomer produced from tetrahydrofuran (i.The Fantastic elasticity of sp