what materials are used to make kevlar?
480225
Kevlar is made by a condensation reaction of an amine (1,4-phenylene-diamine) and and acid chloride (terephthaloyl chloride). The kevlar chains are relatively rigid and tend to form mostly planar sheets, similar to those of silk. This is due to the para-orientation of the benzene rings.
338350
Kevlar is a manmade fibre, it as an organic fibre in aromatic polyamide family. The unique properties and disti nct chemical composition of wholly aromatic polyamides (aramids) distinguish them from other man-made fibre. Kevlar has a unique combination of high strength, high modulus, toughness and thermal stability.
135909
['Low-density polyethylene (LDPE)', 'High-density polyethylene (HDPE)', 'Polypropylene (PP)', 'Polyvinyl chloride (PVC)', 'Polystyrene (PS)', 'Nylon, nylon 6, nylon 6,6.', 'Teflon (Polytetrafluoroethylene)', 'Thermoplastic polyurethanes (TPU)']
1288741
The frightening reality is that while it'll protect you against cuts, a knitted Kevlar® glove offers basically zero protection against punctures. ... add layers made from a puncture-resistant material on top of the Kevlar® (such as leather or a palm coating like nitrile or latex) or b.)
646940
['Elastomer.', 'Butyl rubber.', 'Ethylene-propylene copolymer.', 'Polyisoprene.', 'Styrene-butadiene rubber.', 'Butadiene rubber.', 'Neoprene.', 'Carbon black.']
553030
['Weapons like knives, swords and firearms.', 'Magnetic substances.', 'Corrosive materials like thermometers, mercury and acid.', 'Infective substances, such as bacteria and viruses.', 'Poisons.', 'Organic peroxides.', 'Flammable solids, such as fire lighters and matches.']
1273003
Various materials are used for making a water tank: plastics (polyethylene, polypropylene), fiberglass, concrete, stone, steel (welded or bolted, carbon, or stainless).
117882
['Leather. Leather is flexible yet durable, as sturdy as it is supple. ... ', 'Textiles. Fabric is also quite commonly used for making shoes. ... ', 'Synthetics. ... ', 'Rubber. ... ', 'Foam.']
657957
Ask students to name some materials that might be used to build a model glider. Responses might include balsa wood, paper, cardboard, plastic, and Styrofoam.
328769
['Nylon and polyester. Made from petrochemicals, these synthetics are non-biodegradable as well, so they are inherently unsustainable on two counts. ... ', 'Rayon (viscose) This is another artificial fibre, made from wood pulp, which on the face of it seems more sustainable. ... ', 'Cotton. ... ', 'Wool. ... ', 'Manufacturing processes. ... ', 'Other materials.']
247608
['Buckram Fabric. It is a stiff coated fabric made from a lightweight loosely woven fabric, impregnated with adhesives and fillers. ... ', 'Cambric Fabric. Cambric a lightweight fabric woven in plain weave and produced with a stiff finish. ... ', 'Casement Fabric. ... ', 'Cheese Cloth. ... ', 'Chiffon Fabric. ... ', 'Chintz Fabric. ... ', 'Corduroy Fabric. ... ', 'Crepe Fabric.']
566385
['Marbles or small balls.', 'About 6 feet of flexible tubing, such as ¾-inch. foam pipe insulation.', 'Masking tape.', 'Plastic cup.', 'Scissors.', 'Various supports, such as boxes, paper towel. tubes or books.']
684171
['Building and road construction materials.', 'Combustible fuels, including gas and coal.', 'X-ray security systems.', 'Televisions.', 'Fluorescent lamp starters.', 'Smoke detectors (americium)', 'Luminous watches (tritium)', 'Lantern mantles (thorium)']
1467593
['Flammable liquids and solids.', 'Oxidisers such as bleaching powders.', 'Organic peroxides.', 'Tear gas devices or any gas cylinders.', 'Infectious substances such as live virus materials.', 'Wet-cell car batteries.', 'Magnetrons.']
794442
Examples of manmade fibres are: polyester; polyamide – (nylon); acrylics; viscose, made from wood bark; Kevlar, a high-performance fibre; and Nomex, a high-performance fibre.
460432
['Beeswax.', 'Beeswax wrap.', 'Biodegradable athletic footwear.', 'Biodegradable polythene film.', 'BioSphere Plastic.']
348832
Materials used in construction include asbestos, asphalt, brick and stone, cement, concrete, flooring, foil sealing agents, glass, glue, mineral wool and synthetic mineral fibres for insulation, paints and primers, plastic and rubber, steel and other metals, wallboard, gypsum and wood.