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Kevlar is poly para-phenyleneterephthalamide. That structure has a benzene ring that has a carbon chain on each opposite end ("Para") in a repeating fashion. So, it is like a strand of a rope.
The strands are held together tightly by hydrogen bonding between the amide (carbonyl (C=O) with an amine (NH) on one side) and by stacking interactions between the benzene rings and (a little bit) by dispersion forces.
So, since the strands hold on tightly to each other, it is chemically "tightly woven".
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Where was kevlar invented?
it comes from a UFO that crahed on earth in Roswell, New Mexico according to the records
What are Kevlar's properties?
Kevlar is a man made organic fibre that it is extremely strong and tough. Indeed, it is up to five times stronger than steel. When submerged in water, Kevlar can become up to 20 times stronger than steel. It can also withstand temperatures up to 300°C while still retaining its strength properties. Even at -196°C, Kevlar shows no signs of loss of strength. Almost all solvents are ineffective at corroding Kevlar except some very powerful acids. Kevlar, however is known to degrade when exposed to UV radiation.
What is kevlar armor?
Kevlar is a light, strong para-aramid synthetic fiber. Molecular formula [-CO-C6H4-CO-NH-C6H4-NH-]n See the related link for more information.
When did Stephanie kwolek create kevlar?
She created kevlar in 1965
Is Kevlar a smart material?
Yes kevlar is a smart material. Hope I helped :)
How strong is kevlar?
it is very week
What is the usefulness of kevlar?
Bullet-proof vests are made of Kevlar as are motorcycle re-enforcement pads. Kevlar is extremely strong weave of synthetic fibre which has the added feature of being flexible.
What is the strong fiber manufactured by chemicals?
The? There are hundreds of strong fibers made from chemicals...but we'll be easy and say kevlar.
Why are kevlar they used?
Kevlar is a very strong man made fiber. Although flexible it is stronger than steel. It is one of several fibers used to make (among other things) body armor. Strong, lightweight, and flexible.
What material is very strong and tough but shows very little elongation as it absorbs energy?
kevlar
Why are kevlar gloves considered useful?
Kevlar gloves are important because they can provide excellent protection from work accidents. The reason Kevlar is used in the military is that it is very strong and can protect you from certain dangers that would otherwise be fatal. This is the same reason it can be useful in hard labor careers.
Which material is very strong and tough but shows very little elongation as it absorbs energy?
Kevlar®
Who invented the kevlar vest?
Stefan Kevlar
Where was kevlar invented?
it comes from a UFO that crahed on earth in Roswell, New Mexico according to the records
What is kevlar body armor made out of?
The protective plates, depending on the age of it, will be steel, ceramics, or kevlar.
What are Kevlar's properties?
Kevlar is a man made organic fibre that it is extremely strong and tough. Indeed, it is up to five times stronger than steel. When submerged in water, Kevlar can become up to 20 times stronger than steel. It can also withstand temperatures up to 300°C while still retaining its strength properties. Even at -196°C, Kevlar shows no signs of loss of strength. Almost all solvents are ineffective at corroding Kevlar except some very powerful acids. Kevlar, however is known to degrade when exposed to UV radiation.
What is kevlar armor?
Kevlar is a light, strong para-aramid synthetic fiber. Molecular formula [-CO-C6H4-CO-NH-C6H4-NH-]n See the related link for more information.
