MYTUTOR SUBJECT ANSWERS

439 views

Why are GORE-TEX type materials are waterproof and yet breathable?

The material is made up from nylon laminated with a PTFE / polyurethane membrane. The membrane is too fragile on its own hence why it is combined with the nylon. The holes in membrane are too small for water to pass through but are big enough for water vapour to pass through.

Lily B. GCSE Maths tutor, GCSE Physics tutor, GCSE Chemistry tutor

1 year ago

Answered by Lily, a GCSE Chemistry tutor with MyTutor

Still stuck? Get one-to-one help from a personally interviewed subject specialist

154 SUBJECT SPECIALISTS

£18 /hr

Roshni R.

Degree: Dentistry (Bachelors) - Birmingham University

Subjects offered: Chemistry, Spanish+ 4 more

Chemistry
Spanish
Maths
Biology
-Personal Statements-
-Medical School Preparation-

“Tutoring approach Professional but friendly approach.  Work with my students to identify the areas the student is finding most difficult. Review the topic with my hand-written notes.  Explain any misunderstood areas. Work through examp...”

£18 /hr

Ruby R.

Degree: Medicine (Doctorate) - Nottingham University

Subjects offered: Chemistry, Maths

Chemistry
Maths

“Hi there, my name's Ruby and I'm a first year medical student studying at the Universtiy of Nottingham. Throughout my GCSE and A-Level years I have found Maths and Science truly interesting subjects and I'd love to be able to help you...”

£22 /hr

Ashleigh H.

Degree: Physics (Masters) - University College London University

Subjects offered: Chemistry, Science+ 2 more

Chemistry
Science
Physics
Maths

“ I believe tutoring isn't just about helping a student get to grips with the content of their course, but also building their confidence and exam technique”

About the author

Lily B.

Currently unavailable: no new students

Degree: Geophysics (Masters) - Imperial College London University

Subjects offered: Chemistry, Physics+ 1 more

Chemistry
Physics
Maths

“-First year undergraduate studying Geophysics at Imperial College London, hoping to share my enthusiasm for maths and sciences with GSCE students, as well as teaching them exactly what they need to know!”

MyTutor guarantee

You may also like...

Posts by Lily

Why are GORE-TEX type materials are waterproof and yet breathable?

Why do lasers produce an intense coherent beam of light?

Other GCSE Chemistry questions

What is activation energy?

How can I check if my reaction equations are correct?

Calculate the enthalpy of formation of water.Is the reaction an exothermic or endothermic reaction?

What happens when you heat Calcium Carbonate?

View GCSE Chemistry tutors

Cookies:

We use cookies to improve our service. By continuing to use this website, we'll assume that you're OK with this. Dismiss

mtw:mercury1:status:ok