Aramid vs kevlar

Difference Between Aramid and Kevlar ? What are aramid fibers? The concept is just like JEEP vs SUV. When the sellers tell the products is made of “ ARAMID” , that means it is alike Kevlar , with a litter performance margin. Is aramid stronger than Kevlar?

There are two steps to making Kevlar.

Kevlar is a fabric that is exclusively made by Du Point. Kevlar fiber has a tensile strength comparable with that of carbon fiber, a modulus between those of glass and carbon fibers and lower density than both. Kevlar aramid is used for high-performance composite applications where lightweight, high strength and stiffness, damage resistance, and resistance to fatigue and stress rupture are important.

Aramid fibers are another group of super-heros of the fiber world. Kevlar and other polyamides, all conjure up images of ultra strong materials that are elbowing out more conventional construction materials such as steel. Aramid fabrics are those that have no melting point, have extraordinary weight-to-strength ratios and a very low flammability. They are used in aerospace and military applications, for ballistic-rated body armor fabric and ballistic composites, in marine cordage, marine hull reinforcement, and as an asbestos substitute.

The strength of both materials is similar. Nomex is meta poly amide, kevlar is para.

This substitution pattern around the aromatic ring causes the different properties, kevlar has a greater elastic modulus making it tough whereas nomex changes its conformation with heat (ie it absorbs heat and changes chemically) hence its greater heat resistance. Aramid , in full aromatic polyamide, any of a series of synthetic polymers (substances made of long chainlike multiple-unit molecules) in which repeating units containing large phenyl rings are linked together by amide groups. Amide groups (CO-NH) form strong bonds that are resistant to solvents and heat. Aromatic polyamide (aramid) threads are the result.

They are further refine by dissolving the threads and spinning them into regular fibres. Both Kevlar and Twaron belong to the aramid family of synthetic fibers. DuPont is the manufacturer of Kevlar while Teijin is the manufacturer of Twaron (originally produced by Akzo). They are heat resistant, cut resistant, chemical resistant, and can handle high impacts.

When using machinery with a back side idler, the belt takes a beating and normal belts can wear out faster. The body armor should be strong enough and should be able to protect the wearer from any kind of impact. Kevlar v-belts are made to last longer in these situations. If the body armors are reliable enough then the percentage of death and bullet injuries can be reduced easily. Compared to carbon fiber the Kevlar material is engineered with the elastomer technology.

Been looking into denim jeans lately, and I have seen a few options, but the best seem to be sold outside the US. Moisture regain of para- aramid fibre ranges from 1. It’s great for sound distribution, and its material is flexible. As for durability, the winner is polypropylene.

Its rigid material makes it great for the outdoors, but not as good as Kevlar in terms of sound quality. Aramid main advantages are high strength and low weight.

Like graphite, it has a slightly negative axial coefficient of thermal expansion, which means aramid laminates can be made thermally stable in dimensions. Unlike graphite, it is very resistant to impact and abrasion damage. It can be made waterproof when combined with other materials like epoxy.

By choosing PBI, you’re getting the highest protection available. The backface concave is more than aramid Performance degradation if the temperature is higher than celsius While Aramid does decay faster because they absorb moisture, we at Body Armor Megastore put all of our material inside a ripstop water tight nylon sleeve.