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Chemical route to polyurethane polymer Utilized in creation of spandex. Spandex is principally made up of a polyurea derived from your response of the diol and a diisocyanate. Two courses of spandex are outlined via the "macrodiols". A single course of macrodiols may be the oligomer genera
A prepolymer serves as the foundation of elastic yarns and textiles. Blended with solvents for straightforward dealing with, the material is pushed by way of a system known as a spinneret, which resembles a showerhead with small holes.
If a yarn really springs back whenever you Carefully pull on
A prepolymer serves as the foundation of elastic yarns and textiles. Combined with solvents for straightforward dealing with, the material is pushed via a unit named a spinneret, which resembles a showerhead with small holes.
If a yarn definitely springs back if you Carefully pull on it (like soc