What are examples of regenerated cellulose fibres and synthetic fibres?

What are examples of regenerated cellulose fibres and synthetic fibres?

• what is the difference and could you give some examles ... and maybe some properties or something if you know any :D cheers x

• Answer:

  To make regenerated cellulose fibres, purified cellulose (derived, for example, from wood) is liquified, then extruded to make fibres. These fibres may be woven to make Rayon fabrics. The (Celanese) factory I visited used the fibres to make cigarette filters. In these cases, the cellulose is purified from its original source, and re-shaped without chemical change (the result is fibrous cellulose.) These fibres have the chemical properties (breaking strength, flammability, etc.) of the original ingredient, cellulose. Other synthetic fibres, such as nylon or polyester, are composed of long-chain molecules made from a synthetic mixture made by combining(usually) petrochemical ingredients. The properties of these fibres vary widely. Some are very strong (like nylon), have a special texture (e.g. 'trilobal' polyester, which is triangular in cross-section has a silk-like texture), a high melting or burning point (like Kevlar, worn by race-car drivers and firefighters), or elasticity (like Spandex.)