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Is kevlar a hydrogen bond?
No, Kevlar is not a hydrogen bond. Kevlar is a synthetic fiber made of a strong, heat-resistant polymer matrix. Hydrogen bonds are weak electrostatic interactions between hydrogen atoms and electronegative atoms like oxygen or nitrogen.
What is the repeating unit or kevlar?
The repeating unit of kevlar is made up from two monomers. Benzene-1,4 dicarboxylic acid (A benzene ring with a COOH group on either end) and 1,4 - diaminobenzene (A benzene ring with an NH2 group on either end) When reacted in a condensation reaction, they form the repeating unit of kevlar; -CO-(Benzene)-CO-NH-(Benzene)-NH- With the oxygen molecules double bonded to the carbons. This then repeats over and over to create Kevlar.
Why do lumberjacks wear kevlar?
Lumberjacks wear Kevlar for protection against sharp objects such as chainsaw blades and flying wood debris. Kevlar is a strong and heat-resistant material that can help prevent injuries while working in the dangerous environment of a lumberyard.
Is kevlar expensive?
Yes, Kevlar is relatively expensive due to its high strength and durability. The cost of Kevlar can vary depending on the specific type and application, but it is generally more expensive than other materials like nylon or polyester.
What are the two monomers that form Kevlar?
The two monomers that form Kevlar are 1,4-phenylenediamine and terephthaloyl chloride. These monomers undergo a condensation polymerization reaction to form the long, stiff molecular chains characteristic of Kevlar.
Why were improvements made to kevlar?
Same reason anything is improved - to make it better. Stronger, lighter, more useful...
When was kevlar made?
1927 kevlar was invented by stephanie kwolec
What is kevlar body armor made out of?
The protective plates, depending on the age of it, will be steel, ceramics, or kevlar.
What further improvements have been made to the ipod?
the futher improvements that will be made to the ipod could be water proof and no headphones needed
What are 2 improvements that have been made to the periscope?
kuf
What improvements have been made to solar cars?
tacos
What improvements have been made to the iPod?
everything has changed on the ipod
What improvements have been made to the cardboard box?
different materials
What improvements have been made to calculator?
One of the improvements that has been made to the calculator since the invention of the device is that calculators are much smaller now. Another improvement is that many of them are solar powered.
What is the PASGT helmet made of?
Kevlar.
What improvements have been made in WinZip 7?
Performance improvements have been made in WinZip 7 including improved daily statistics performance, and a smaller navigation widget. A number of security fixes have been implemented to.
Can you get wedding rings made from kevlar?
Yes. you can get at Kevlar tungsten wedding rings http://madtungsten.com/product-category/kevlar-carbon-fiber-rings/
