N

Nanofiller
Primary particle compound used as filler or reinforcer in polymers with very small particle size (in the nanometer range). Generally, surface modified Montmorillite clays (also called Nanoclays) are used to provide material with excellent mechanical, barrier or FR performances.

Nanocomposite
A class of plastic compound containing well dispersed and exfoliated nanofiller such as nanoclays. Nanocomposites exhibit unique performance profiles such as stiffness/impact balance or transparent barrier properties.

Nanotube (or Carbon Nanotubes)
Long, thin cylinders of carbon. Nanotubes have a very broad range of electronic, thermal, and structural properties that change depending on the different kinds of nanotube (defined by its diameter, length, and chirality, or twist).

Natural Rubber, NR (extended definition)
Natural rubber is a polymer produced in the sap of rubber trees (Hevea Brasiliensis) and some other plants. As a natural product, it is formed as a latex which can be collected and dried. The polymer is cis-polyisoprene. It is not cross-linked in the natural state and only becomes a durable solid when it is cross-linked by, for example, vulcanisation.

Nitrile rubber
Nitrile rubber is synthetic, as opposed to natural latex. Car tyres are made of Nitrile. Although it is not considered to be a "plastic" it can be injection moulded. (Working Temperature Range: -30°C to +100°C)

Nucleating agent
Substance with the ability to act as substrate for crystal formation by epitaxy, thus increasing the nucleation density. Improves crystallisation behaviour in processing, i.e., cycle time or line speed, as well as crystallinity and morphology in final product, improving optical and mechanical properties.
See Clarifier