What kind of polymer is wool generally known as

Synthetic fibres are cheaper than natural fibre. Synthetic fibres are stronger than natural fibre. Synthetic fibres are more durable than natural fibre. Synthetic fabrics are dried up in less time. Synthetic fibres are easy to maintain and wash.

Plastic is a polymer that can be recycled, coloured, reused, mould or drawn into wires or various other shapes. Units of some plastics have linear arrangement while some plastics are formed by the cross linked arrangement of their units. Thus, plastic is used in making toys, suitcase, bags, cabinets, brush, chairs, tables, and many other countless items.

Polythene is one of the most famous types of plastic, which is used in manufacturing of carry bags. Thermoplastic: Plastics which can be easily bent or deform on heating are known as thermoplastic. PVC and Polythene are the examples of thermoplastics. Thermosetting plastic: Plastics which do not get deformed or softened on heating when mold once, are called thermosetting plastics. Bakelite and melamine are the examples of thermosetting plastics.

In our previous section on network polymers, we mentioned vulcanized rubber and pectin. Vulcanized rubber is a synthetic man-made polymer, while pectin is an example of a natural polymer. Rubber can be found in nature and harvested as a latex milky liquid from several types of trees.

Natural rubber coming from tree latex is essentially a polymer made from isoprene units with a small percentage of impurities in it. Rubber can also be made synthesized by man.

Synthetic rubber can be made from the polymerization of a variety of monomers, including isoprene. Natural rubber does not handle easily it's sticky , nor does it have very good properties or durability it rots.

It is usually vulcanized, a process by which the rubber is heated in the presence of Sulfur, to improve its resilience, elasticity and durability. Synthetic rubber is preferable because different monomers can be mixed in various proportions resulting in a wide range of physical, mechanical, and chemical properties. The monomers can be produced pure and addition of impurities or additives can be controlled by design to give optimal properties. Vulcanization, also called curing, is the chemical process used in the rubber industry in which individual polyisoprene chains are linked to other polyisoprene chains by chemical bonds see reaction sequence below.

These scales protect from dirt and are what enable felting to occur. Lanolin is the waxy coat produced by glands surrounding the cuticle. It protects sheep from the elements and repels water while allowing water vapour absorption. When wool is processed, lanolin is removed. Schematic diagram of wool fibre structure. Photographer : Textile and Fibre Technology.

Millions of cells bind together to create cortical cells. Cortical cells — fine wool contains two main types are para-cortical and ortho-cortical and each has a unique chemical composition. Basically, these cells put the crimp in wool. Macrofibril — these are the long filaments found inside the cortical cells.

In turn, these are made up of microfibrils.