What is the difference between cast and extruded Nylon?

What is Nylon Sheet?

Nylon Sheet and Nylon Rod have become the most well known engineering plastics due to their excellent properties. Nylon acts as an all rounder product and is capable in many situations of being a safe and dependable plastic.

Nylon sheet, plates, tubes or rods within the polyamides, are commonly referred to as "nylon", each with distinguishable differences between the types. The most important ones are: Nylon PA 6, PA 66, PA 11 and PA 12. The differences in physical properties which exist between these types of nylons are mainly determined by the composition and the structure of their molecular chains.

Nylon 6 is perhaps the most popular used nylon grade used throughout Europe due to its properties, and Nylon sheet is particularly easy to machine, be it through automated machines or manual machinery. 

 

What is the difference between cast and extruded Nylon?

 

How is Nylon made?

Nylon, like other plastics, typically starts with the distillation of hydrocarbon fuels into lighter groups called “fractions,” some of which are combined with other catalysts to produce plastics (usually via polymerization or polycondensation). Nylon can also be produced from biomass. Based on the nature of biomass, it can potentially result in a more biodegradable material. The actual process for Nylon production falls into one of two methodologies. The first involves the reaction of monomers with amine (NH2) groups reacting with carboxylic acid (COOH). The second consists of the reaction of diamine (a molecule with 2 x NH2 groups) with dicarboxylic acid (a molecule with 2 x COOH groups).

 

Extruded Nylon & Cast Nylon Characteristics

● High mechanical strength, stiffness, hardness and toughness

● Good fatigue resistance

● High mechanical damping ability

● Good sliding properties

● Excellent wear resistance

● Good electrical resistance

● High resistance against high energy radiation (gamma and X-rays)

● Good machinability

 

What is the difference between cast and extruded Nylon?

The main difference lies in the manufacturing process. Cast polyamide products are manufactured by means of a chemical reaction process. This allows products with extremely large dimensions and custom cast parts to be manufactured. Water absorption and dimensional changes are lower in CAST. The crystallinity is greater so that wear resistance and machinability are better. Extruded absorbs more moisture and is thus tougher and has greater impact and vibration damping properties.

 

COLORFUL NYLON (PA6) MC CAST NYLON SHEET

Shandong HUAAO Engineering Technology Co., Ltd. is one of the largest engineering plastic product manufacturers and trading company in China. We produce CAST NYLON SHEET, welcome your inquiries. Feel free to contact us.

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