Polymers are used in many composite materials.i) Is the polymeric material the matrix or reinforcment? (2 marks)ii) State TWO examples of such a composite. (2 marks)iii) Give a typical application for one of these composites and describe why theyare so suitable for that application.

i) In composite materials, the polymeric material typically serves as the matrix. The matrix binds the reinforcement to form the composite material.

ii) Two examples of such composites are:

1. Fiberglass: This is a composite material made of glass fibers embedded in a resin matrix.
2. Carbon Fiber Reinforced Polymer (CFRP): This is a composite material that uses carbon fibers as the reinforcement in a polymer matrix.

iii) A typical application for one of these composites is in the aerospace industry, specifically in the construction of aircraft. CFRP, for example, is used extensively in the design of modern aircraft. The reason for this is that CFRP has a high strength-to-weight ratio, meaning it is very strong for its weight. This is a critical property in the aerospace industry, where reducing weight is a major focus. Additionally, CFRP is resistant to corrosion, which is another important factor in its suitability for use in aircraft.