Synthetic Fibres and Plastics

PVC (Polyvinyl Chloride) is widely used for plumbing pipes and electrical wiring insulation due to its durability, chemical resistance, and insulating properties. Nylon and Teflon have other specialized applications. 'Ploythene' appears to be a misspelling of polyethylene, which is also used for pipes but PVC is more common in plumbing.

Cotton is preferred for aprons because it is absorbent, breathable, and heat-resistant, making it safer and more comfortable in a kitchen environment compared to synthetics that might melt.

Synthetic fibres are popular because they are generally hydrophobic (soak less water), easy to care for, durable, and cost-effective.

Rayon is a regenerated fibre; while it starts with natural wood pulp, it requires extensive chemical processing to become a usable fibre, classifying it as man-made.

Nylon is a synthetic polyamide made from petrochemicals, specifically coal, water, and air.

Thermosetting plastics undergo a chemical change during curing and cannot be softened or remoulded by heating once set.

PET (Polyethylene terephthalate) is a well-known type of polyester used in bottles and clothing fibres.

PVC, Polythene, and Bakelite are all synthetic polymers. The other options contain natural fibres like wool, cotton, or silk.

Melamine is a thermosetting plastic known for its heat resistance, whereas PVC and Polythene are thermoplastics.

Teflon (PTFE) is a non-stick polymer used on cookware and irons due to its low coefficient of friction and heat resistance.

Melamine is a thermosetting plastic with high fire and heat resistance, making it suitable for protective gear.

Rayon is produced from cellulose and has a sheen and texture similar to silk, earning it the name 'artificial silk'.

Polywool is a blend of polyester and wool, making it a mixture of two different fibres.

Acrylic is a synthetic fibre that mimics the warmth, texture, and appearance of wool.

Nylon is widely recognized as the first fully synthetic fiber, developed in the 1930s. Other options like rayon are semi-synthetic, as they are derived from natural cellulose.

Polyesters are polymers formed by the condensation polymerization of monomers containing ester functional groups. The name itself indicates the presence of multiple ester linkages.

Rayon is a regenerated cellulose fiber produced by chemically treating wood pulp. It is often called artificial silk.

Wallace Carothers and his team at DuPont successfully synthesized nylon in 1935, but the patent application and initial development work were finalized in 1931.

A polymer is a large molecule (macromolecule) composed of many repeating structural units called monomers. The process of joining these units is called polymerization.

Cellulose is a natural polysaccharide consisting of a linear chain of several hundred to many thousands of beta-glucose units. It is the primary structural component of plant cell walls.