Nylon is an aliphatic polyamide drawn into fibres, in which strength comes from hydrogen bonding between neighbouring polymer chains. It matters as one of the first commercially successful synthetic fibres, originally developed as a substitute for silk and now widely used in textiles and engineering. As an aliphatic polyamide, nylon contrasts with an aramid such as Kevlar, whose chains are aromatic and therefore far stronger.

尼龙是一种被拉成纤维的脂肪族聚酰胺,其强度来自相邻聚合物链之间的氢键。它之所以重要,是因为它是最早取得商业成功的合成纤维之一,最初作为蚕丝的替代品开发,如今广泛用于纺织和工程。作为脂肪族聚酰胺,尼龙与凯夫拉等芳纶形成对照,后者的链为芳香族,因而强度高得多。