Composite Materials

Question 1

Define the term Composite Material

Answer 1

Composite materials are formed when two or more different materials are combined to create a new material with improved properties and functionality.

Question 2

Name TWO plastic based composites.

Answer 2

Glass Reinforced Plastic (GRP) & Carbon Fibre Reinforced Plastic (CRP)

Question 3

Why is it difficult to recycle many composite materials?

Answer 3

It is difficult to break down the separate materials.

Question 4

Name a breathable Technical Textile.

Answer 4

Gore Tex

Question 5

Explain how this technical textile stops water from getting in, yet lets water vapor out.

Answer 5

Gore Tex has tiny pores (150 million per cm/2) which stops water droplets from getting in but persperation from the body turns to vapour which can escape through the tiny pores.

Question 6

Kevlar Fibre has a high tensile strength. true or false

Answer 6

True

Question 7

Name a common use for Kevlar

Answer 7

Bullet proof jacket