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Synthetic aramid fibres absorb bullet impacts by distributing kinetic energy across strands. The figure is taken from Encyclopaedia Britannica, which is linked in full on this page. Every fact on Mondo Knows names its source rather than repeating an unsourced claim.

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Kevlar polymer derives extreme strength from inter-chain hydrogen bonds

Synthetic aramid fibres absorb bullet impacts by distributing kinetic energy across strands

Kevlar is a synthetic aramid polymer composed of long repeating molecular chains aligned parallel to one another. Strong aromatic ring structures and dense hydrogen bonds between adjacent polymer chains lock the fibres into an exceptionally rigid sheet structure. This molecular alignment gives Kevlar five times the tensile strength of steel on an equal weight basis.

Where this comes from

Encyclopaedia Britannica

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Tags: materials, polymers, kevlar

Kevlar polymer derives extreme strength from inter-chain hydrogen bonds: the short answers

Where does this come from, and can I check it?: Synthetic aramid fibres absorb bullet impacts by distributing kinetic energy across strands. The figure is taken from Encyclopaedia Britannica, which is linked in full on this page. Every fact on Mondo Knows names its source rather than repeating an unsourced claim.
Is this really a science fact?: Yes. It sits on the Science shelf, one of 1,090 sourced facts grouped into space, animals, the human body, history, science and more. Category pages collect every fact in the same field.
What else can I read about it?: The links under the fact point to a quiz, game, puzzle or calculator on the same subject, and the shelf below shows related facts. The wording here is original, and quoted phrases are marked as quotations.