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[Chemical Knowledge]：Properties and Uses of Polycaprolactam

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Polycaprolactam (Polycaprolactam, PA6 for short) is an important raw material for chemical production and belongs to polymer materials. It has excellent properties and a wide range of applications, and is an important basic raw material in the fields of plastics, fibers and engineering materials. This article will detail the properties and uses of polycaprolactam.

1. properties of polycaprolactam

1. physical properties of
polycaprolactam is a semi crystalline polymer compounds, with good mechanical properties, heat resistance, wear resistance, chemical resistance and dimensional stability. It has a density of about 1.14-1.15g/cm³, a melting point in the range of 215-225°C, and a glass transition temperature (Tg) of about 47°C. Polycaprolactam also has good electrical insulation properties, but its high water absorption will affect its electrical properties.

2. chemical properties
polycaprolactam main chain containing amide group (-CONH-), it has a certain reactivity. Under certain conditions, polycaprolactam can be hydrolyzed, aminolysis, acidolysis and other reactions. In addition, polycaprolactam also has good oil resistance, solvent resistance and acid resistance.

2. the use of polycaprolactam

1.
in the field of plastics polycaprolactam can be used to produce a variety of plastic products, such as film, pipe, bar, plate, fiber and so on. Because of its good mechanical properties, heat resistance and dimensional stability, it is widely used in automobiles, electronic appliances, aerospace, construction and other fields.

2.
in the field of fiber Polycaprolactam fiber (nylon) is a common synthetic fiber with high strength, elastic recovery rate and abrasion resistance, so it is often used in the production of sportswear, outdoor clothing, tents, etc.

3.
in the field of engineering materials Polycaprolactam can be used as engineering materials used in various mechanical parts, structural parts and wear parts. Because of its good heat resistance, wear resistance and dimensional stability, it can be used for mechanical equipment under harsh conditions such as high temperature, high pressure, and high wear.

In conclusion, polycaprolactam as an important raw material for the production of chemical products has a wide range of applications in the fields of plastics, fibers and engineering materials. With the continuous development of science and technology, the performance and application of polycaprolactam will continue to expand.

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