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Is kevlar reactive?
No, Kevlar is not reactive. It is a synthetic material known for its high tensile strength and heat resistance, making it popular for use in body armor and other protective gear.
What is the mass of kevlar?
The mass of Kevlar can vary depending on the specific type and application, but generally it has a density of about 1.44 grams per cubic centimeter. So, for example, a piece of Kevlar fabric that is 1 square meter in size and 1 millimeter thick would weigh around 1440 grams or 1.44 kilograms.
Which company owns Kevlar?
E. I. du Pont de Nemours and Company Stephanie Kwolek invented the syntheticWhile working for DuPont, Kwolek invented Kevlar. In anticipation of a gas shortage, in 1964 her group began searching for a new lightweight strong fiber to use for light but strong tires. The polymers she had been working with at the time, poly-p-Phenylene-terephthalate and polybenzamide, formed liquid crystal while in solution, something unique to those polymers at the time. The solution was "cloudy, opalescent upon being stirred, and of low viscosity" and usually was thrown away. However the technician, Charles Smullen, who ran the "spinneret" persuaded Kwolek to test her solution, and was amazed to find that the fiber did not break, unlike nylon. Both her supervisor and laboratory director understood the significance of her discovery and a new field of polymer chemistry quickly arose. By 1971, modern Kevlar was introduced. However, Kwolek was not very involved in developing the applications of Kevlar.Stefan Kevlar
How do you make molecular model of graphite?
To make a molecular model of graphite, you can represent it using a 3D structure of hexagonally arranged carbon atoms linked together in layers. You can use modeling kits or software to create a visual representation of the hexagonal structure, showing the layers of carbon atoms arranged in a flat sheet. Graphite has a structure where each carbon atom is bonded to three other carbon atoms in a trigonal planar arrangement, forming a network of hexagonal rings.
What gain covalent structure is often used in pencils and lubricants?
Graphite is the gain covalent structure often used in pencils and lubricants. It consists of layers of carbon atoms arranged in a hexagonal lattice that allows for smooth, low-friction movement between layers, making it ideal for use in lubricants.
What do you use mortar for?
Mortar is used to bind building materials together when building a building.
What are body armors made out of?
most light armmor us kevlar some also use steel plate and kevlar
Does the army use kevlar?
Yes, and they have for years now.
When did Stephanie kwolek create kevlar?
Stephanie Kwolek invented Kevlar in 1965 while working as a chemist at DuPont. Kevlar is a strong and lightweight synthetic fiber that is well-known for its use in ballistic protection and other high-strength applications.
How can I bind a loose leaf textbook?
To bind a loose leaf textbook, you can use a three-ring binder or a binding machine. Simply punch holes in the pages and insert them into the binder or use the binding machine to secure the pages together.
Does kevlar have a patent?
Yes, Kevlar is a trademarked term for a type of para-aramid synthetic fiber developed by DuPont. While the specific formulation of Kevlar is patented, the use of para-aramid fibers in general is not restricted by patent.
If you base coat with kevlar fabric that is resin inpregnated and coat it with a explosive resistant spray coating would it be bullet proof?
Using a kevlar fabric as a base coat and coating it with an explosive-resistant spray may provide some level of protection against bullets, but it does not guarantee bulletproofing. The resistance to bullets depends on various factors such as the thickness and quality of the kevlar, the type and speed of the bullet, and the specific properties of the spray coating. It is essential to consult with experts and conduct thorough testing to determine the level of protection provided.
Can you tell me how to make meatballs that hold together?
The key is to make sure to use egg. That really helps bind them together. Epicurious.com has fantastic recipes as does allrecipes.com
What do you use to make war helmets?
There are steel helmets with fiberglass liners, and Kevlar ones. Steel helmets are made from sheet steel, fiberglass cloth and polyester resin. Kevlar helmets are made from Kevlar cloth and epoxy resin.
What use does mortar have in building trade?
Mortar is the substance used to bind building materials together. It is laid between bricks to seal them in place.
How is a field hockey stick made?
Depending on the type of stick: * A wooden base is carved from a strong timber. It is then smoothed off and painted. * Layers of various types of carbon fibre are laid together in a mould with resin. As the resin dries, more layers are added until it reaches the final size. The two halves are then placed together and more fibre and ersin is added around them to bind them. When it is finished, the outside will be smoothed off and the stick painted and capped. * A wooden beam is carved from timber. Layers of composite material (fibres and resin) are then added to create the shape of the stick. The final product is finished off, painted and capped.
How do you laminate kevlar?
Laminating kevlar is very much like laminating fiberglass, with a couple of differences. First, the resin is different. You can use polyester or vinylester resin for fiberglass; low-viscosity epoxies must be used for kevlar. And second, the way you wet it out is different--it requires a lot more force because kevlar is more tightly woven than fiberglass is.
