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Kevlar

— Science

Kevlar-reinforced lithium-ion batteries shouldn't catch fire

By - January 28, 2015 2 Pictures
While lithium-ion batteries may outperform their older, lower-tech counterparts, they do have one drawback – occasionally, they catch fire. This can happen when fern-like metal structures known as dendrites form between the battery's two electrodes, causing a short circuit. Now, however, researchers at the University of Michigan have used Kevlar nanofibers to create a barrier between the electrodes, which is impervious to those nasty dendrites. Read More
— Bicycles

Wooden mountain bike gets by with a little help from Kevlar

By - March 18, 2014 10 Pictures
Wooden-framed bikes are things of undeniable beauty, but they're also highly prized for their smooth ride capabilities. At the North American Handmade Bicycle Show, Chris Connor of Denver-based Connor Wood Bicycles introduced us to a new mountain bike named DURT, that's had sections of the steam-bent, locally-sourced reclaimed wooden frame reinforced with Kevlar for a gorgeous combination of strength, beauty and performance. Read More
— Marine

Quickboat foldable boat: From roof rack to water in 60 seconds

By - July 25, 2013 18 Pictures
Think it takes more time to build a boat than make a French omelette? Think again. The Quickboat is the first foldable boat we've seen that a team of two can put together in a minute or less. That's insanely fast compared to the build times of other foldable boats we've covered, such as the Transporter (10 minutes) and the Smartkat (20 minutes). In fact, the boat is so easy to construct says Deryck Graham, the Managing Director of Australian company Quickboats, that one person with a beer in hand could assemble one in three minutes even with friends around to distract them. Read More
— Good Thinking

Socrates socks with integrated Kevlar are designed to never wear out

By - October 15, 2012 4 Pictures
For many, socks and jocks are the go-to gifts for dads for Christmas and birthdays. While not the most imaginative gift, most men can generally use a steady resupply of both thanks to the inevitable holes that appear in such garments coupled with an apparent reluctance to spend money on underwear. Well, gift givers may need to put in a bit more thought if dad invests in a couple of pairs of Socrates socks. Made from Kevlar-carbon matrix material, they’re designed never to get a hole, droop, or wear out. Read More
— Environment

Wood pulp extract stronger than carbon fiber or Kevlar

By - September 3, 2012 12 Pictures
The Forest Products Laboratory of the US Forest Service has opened a US$1.7 million pilot plant for the production of cellulose nanocrystals (CNC) from wood by-products materials such as wood chips and sawdust. Prepared properly, CNCs are stronger and stiffer than Kevlar or carbon fibers, so that putting CNC into composite materials results in high strength, low weight products. In addition, the cost of CNCs is less than ten percent of the cost of Kevlar fiber or carbon fiber. These qualities have attracted the interest of the military for use in lightweight armor and ballistic glass (CNCs are transparent), as well as companies in the automotive, aerospace, electronics, consumer products, and medical industries. Read More
— Military

U.S. Army develops “Kevlar underpants” to protect soldiers' nether regions

By - February 23, 2012 1 Picture
When it comes to the many “life-changing” injuries that can result from an IED blast, the loss of a limb is probably the first one that springs to mind. But injuries to the pelvic region that leave soldiers with the inability to have children can obviously be just as devastating. That’s why the U.S. Army has developed a Pelvic Protection System - dubbed “Kevlar boxers” or “combat underpants” by some soldiers - to protect dismounted soldiers patrolling Afghanistan roads. Read More
— Urban Transport

Wire Bike uses carbon fiber and Kevlar cables

By - March 9, 2009 3 Pictures
Super light structural materials such as carbon fiber and Kevlar have incredible natural strength in tension but are much weaker in compression. A good example of this is how the carbon fiber suspension on a formula one car can resist several tons of downforce but explodes when crashed into a barrier. The concept of tension has been a familiar sight in large engineered structures such as suspension bridges and now the same concept has been applied to a bike frame. Read More
— Military

Kevlar gauntlets to protect soldiers in combat

By - January 20, 2004 3 Pictures
The almost universal use of Kevlar armoured vests by US soldiers in combat situations has resulted in a big increase in arm injuries from combat situations. The Kevlar vests have proven to be so effective that they are reducing deaths, but those that survive do so with arms often damaged beyond repair due to burns and shrapnel penetration. A new arm-armour known as the Sandia Gauntlet could prove to be the solution to the problem. Read More
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