Kevlar Part Two
I hope you enjoyed the last lesson! Today we will be talking about the molecular and chemical components to Kevlar, so buckle up and get ready for some fancy words!
What is Kevlar's other name?
WHAT? Kevlar has more names than just Kevlar?
Yep! Actually Kevlar has several names. If you think about it, all sorts of household things have several names. Can you name some?
What are Kevlar's other names then?
Right now we will focus on one and break it down to see what it says about Kevlar.
Synthetic Aromatic Polyamide Polymer
Synthetic means that the product is made in a lab. This means it's not natural like animal fur is. In this case, it is telling us that Kevlar is not natural, that it is from a chemistry lab. Kevlar was made in DuPont Chemicals.
Aromatic means that the molecules inside of a material has a structure similar to a benzine ring. Kevlar's molecules are aromatic.
What on earth is a benzene ring?
Polyamide means that the aromaticity of Kevlar makes it's molecules able to connect and make long chains inside of Kevlar to make it's fibers.
Polymer means that the substance, Kevlar, comes from several identical molecules bonded together. Each of these molecules is called a monomer, which in Kevlar's structure are based off of a modified benzene ring.
Nomex and Kevlar
You may remember (or maybe not) what a material called Nomex is. Nomex is a material similar to Kevlar, and is also a Synthetic Aromatic Polyamides, or Arimid for short. Both Nomex and Kevlar are made in DuPont Chemicals, but with some differences. Where Kevlar is knife and bullet proof, Nomex focuses more on fire resistancy.
Nomex is used in a variety of things, but most importantly, fireproof gear, like the uniforms firemen wear. In these instances, the Nomex fabric is mixed with Kevlar fabric, creating a fireproof, bulletproof, and tear-resistant outfit.
Want to learn a cool word?
Alright! Try saying this!
What does this even have to do with Kevlar?
This is another one of Kevlar's names!
"I hope I'm saving lives. There are very few people in their careers that have the opportunity to to do something to benefit mankind."
Stephanie L. Kwolek
Inventor of Kevlar
Test your knowledge!
DO YOU HAVE ANY QUESTIONS?
I will see you next time!