Tensile strength of Cotton, Nylon, Polyester fiber? 3

[geneiusxie]

I know this might sound like an easy question, but what's the tensile strength of Cotton, Nylon, and Polyester fibers? It's been months now and I still don't have any good data.

Also, what's the tensile strength of Technora fiber?

-Gene

 

[btrueblood]

Fiber ultimate strength is called "tenacity", and is usually quoted in grams/denier or g/d. Denier is a linear mass density. Wikipedia has data for typical cotton fibers, and you should be able to find the others with a bit of googling (I'm being more vague also, because there are about as many types/kinds of nylon as there are kinds of wood, and expect you will find even more variation from the generic term "polyester"). The tenacity for manufactured fibers will actually go up as the fiber denier is decreased (i.e. smaller fibers), just like with spring wire.

 

[Compositepro]

You will find useful information in these links:

http://www.tensiontech.com/papers/papers/deep_mor/deep_mor.html?spell=US

http://www.nap.edu/openbook.php?record_id=11268&page=1

 

[Demon3]

Googling Technora fiber strength took me to the manufacturers website (first hit in list) one click on "comparing aramids" too me here:

http://www.teijinaramid.com/aramids/comparing-aramids/

which gives the tensile strength as 3.4 GPa.

Chris DeArmitt

Expert consulting & training

http://www.phantomplastics.com

 

[Demon3]

The same table gives polyester (PET) as 1.1 GPa and nylon (PA6 and PA6,6) as 0.9 GPa.

Chris DeArmitt

Expert consulting & training

http://www.phantomplastics.com

 

[geneiusxie]

Huh. So nylon is 4x weaker than Kevlar and Technora. Pretty impressive.

I still can't find any data for cotton fibers.

 

[btrueblood]

Wikipedia gives tensile strengths for cotton fiber. Just enter cotton in the search box. But, it will give you figures in grams/denier, so you will have to convert.

 

[CoryPad]

Nice article here:

http://cp.literature.agilent.com/litweb/pdf/5991-0274EN.pdf

 

[Demon3]

A Google search for "strength cotton fiber MPa" gives the answers you want in the first hit.

http://cp.literature.agilent.com/litweb/pdf/5991-0274EN.pdf

Answer 1.1 GPa.

Really, can people at least make a real effort to use Google before asking?

Chris DeArmitt - PhD FRSC

Materials Consulting & Training

http://www.phantomplastics.com

 

[geneiusxie]

I already Googled it about twenty times before using different keywords.
Sorry, but I guess you're better at Googling stuff than I am. And thanks

 

[Demon3]

No worries! Googling may be more of an art than I'd suspected.

Chris DeArmitt - PhD FRSC

Materials Consulting & Training

http://www.phantomplastics.com