Polymer fibres are used to make firefighter uniforms. The table below shows some properties of two polymer fibres.Evaluate the suitability of poly(propene) and polyester for firefighter uniforms – 6162

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1. Advantages of polyester for firefighter uniforms

   Has better flame resistance, so it burns less easily and helps protect the firefighter.

   Has a higher melting point, so it doesn’t melt easily and the uniform is less likely to be damaged.

   Can absorb some water, making it less likely to catch fire.

   Disadvantages of polyester

   Has high density, making the uniform heavy.

   Absorbs water, so the firefighter can get wet.

   When it absorbs water, the uniform becomes even heavier.

   Conclusion: Polyester is good for protection against fire, but it can be uncomfortable and heavy when wet.

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