Membranes

HideShow resource information
  • Created by: Abigail
  • Created on: 16-04-15 20:36

HYDROPHILIC;

  • cotton is an example of this so it can absorb moisture both from perspiration and rain
  • cotton takes a long time to dry so wet cotton is uncomfortable 
  • wool is also hydrophilic as it will absorb 1/3 of its own weight in water

HYDROPHOBIC;

  • fibres like acrylic, polyester, nylon and nomex are said to be hydrophobic - also known as water hating
  • doesn't absorb water
  • a drop of water will stay on the surface of pure nylon until it evaporates
  • this makes it uncomfortable to wear as it doesn't allow wicking so these fibres are often blended with naturals

GORE TEX;

  • made from an oil-hating substance and PTFE which is hydrophobic 
  • initially developed for space missions being the first ever membrane
  • has nine billion microscopic holes per square 2.5cm
  • makes it breathable, waterproof, windproof
  • can be laminated to any type of natural or…

Comments

No comments have yet been made

Similar Textiles resources:

See all Textiles resources »See all Textiles resources »