SingleWall

Singlewall is a term used in several domains to describe structures, materials, or devices that consist of a single layer, rather than multiple nested or insulated layers. Because the term spans different fields, its precise meaning depends on the context.

In nanotechnology and materials science, single-walled carbon nanotubes (SWCNTs) are cylindrical structures formed by rolling a single sheet of carbon atoms (graphene) into a tube. They have exceptional mechanical strength, electrical conductivity, and thermal properties, making them a focus of research for nanoelectronics, composite materials, and sensors. They are distinguished from multi-walled carbon nanotubes, which contain multiple concentric graphene cylinders and exhibit different optical and mechanical behaviors.

In construction and home systems, single-wall refers to vent pipes or chimneys with a single metal wall and no insulation. Such piping is lighter and cheaper but requires larger clearances from combustible materials and can transfer more heat to surrounding surfaces. It is generally used for short runs and approved appliances, with double-wall configurations available for added insulation and safety.

In packaging, single-wall cardboard describes corrugated board with one layer of fluting between two liners. This type is lighter and cheaper and provides basic protection, suitable for lighter or less fragile contents, while double-wall cardboard offers greater strength and impact resistance.

The term can also appear in other contexts where a single layer defines the basic structure. When encountering “singlewall,” the intended meaning is usually clarified by the domain or by accompanying descriptors.