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The term “nylons” refers to the group of plastics known as polyamides. Nylon is used in the production of film and fiber, but is also available as a moulding compound.
There are many types of nylon available (e.g. nylon 6, nylon 66, nylon 6/6-6, nylon 6/9, nylon 6/10, nylon 6/12, nylon 11, nylon 12). The material is available as a homopolymer, co-polymer or reinforced. Nylons may also be blended with other engineering plastics to improve certain aspects of performance. Nylon is well suited for processing via injection moulding, rotational moulding, casting or extrusion into film or fiber.
Its properties are determined by the R and R’ groups in the monomers. In nylon 6,6, R’ = 6C and R = 4C alkanes, but one also has to include the two carboxyl carbons in the diacid to get the number it donates to the chain.
The majority of nylons tend to be semi-crystalline and are generally very tough materials with good thermal and chemical resistance. The different types give a wide range of properties with specific gravity, melting point and moisture content tending to reduce as the nylon number increases. Nylons can be used in high temperature environments. Heat stabilized systems allow sustained performance at temperatures up to 185oC.
|Tensile Strength:||90 – 185 N/mm2|
|Notched Impact Strength:||5.0 – 13.0 Kj/m2|
|Thermal Coefficient of Expansion:||80 x 10-6|
|Max. Continued Use Temperature:||150 – 185 oC (302 – 365 oF)|
|Melting Point:||190 – 350 oC (374 – 662 oF)|
|Glass Transition Temp. (Nylon 66):||45 oC (113 oF)|
|Density:||1.13 – 1.35 g/cm3|
Edited by Leafly Mould Provides Injection Mold, Plastic Mold, Injection Molding, Die Casting Mold, Stamping Mold