Analysis of Spandex/Cotton Elastomeric Properties: Spinning and Applications

The spandex or lycra (chemically polyuthrene) is become a very popular and emerges as the only choice for the case of the elastomeric behaviour and can be easily blended with different other fiber like cotton, wool, silk or also can be mixed with other manmade polymer like nylon, polyester etc. The elastomeric behaviour of this type of elastomeric properties comes due to the soft and hard segmental attachment inside the spandex fiber. The ratio of the soft and the hard segment is very important to determine the elastomeric or mechanical properties (elongation, relaxation) of the spandex fiber blend with natural material like cotton fiber (spandex/cotton blend).