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Polymer Structure

Properties and Overview of PK (Polyketone)

Overview:

Image of PK or Application PK (Polyketone) is a high-performance thermoplastic polymer recognized for its excellent mechanical strength, chemical resistance, and wear resistance. As a relatively newer class of engineering plastics, PK stands out for its balance of properties, including toughness, low friction, and ease of processing. These characteristics make it a versatile material for applications across industries such as automotive, industrial machinery, and consumer goods.


Production:

The production of polyketone involves copolymerizing carbon monoxide (CO) with olefins like ethylene or propylene. This unique polymerization process produces a highly regular alternating structure, contributing to the material's exceptional mechanical and thermal properties. PK can be processed using standard thermoplastic manufacturing techniques, such as injection molding and extrusion, enabling the production of complex components with high precision. Its natural toughness and lubricity reduce the need for reinforcement or additives, simplifying production and enhancing recyclability.


Applications:

PK is widely used in applications that demand durability, wear resistance, and chemical stability. In the automotive industry, it is employed for fuel system components, connectors, and structural parts, where its resistance to fuels and mechanical stress ensures long-term performance. In industrial machinery, PK is used for gears, bearings, and conveyor parts, benefiting from its low friction and wear resistance, which reduce maintenance and improve efficiency. The consumer goods sector relies on PK for durable products such as power tool housings, sports equipment, and kitchenware, whose toughness and resistance to repeated use are critical. Additionally, PK's low permeability to gases makes it a valuable material in packaging applications, especially for food products requiring extended shelf life.


Summary:

Polyketone is a versatile, high-performance polymer with a unique combination of strength, wear resistance, and chemical stability. Its adaptability and ability to perform in demanding conditions make it a critical material in automotive, industrial, and consumer applications. As industries increasingly seek sustainable and durable materials, PK stands out as an innovative solution, driving reliability and efficiency across various fields. Its potential for further advancements ensures its continued importance in modern engineering and manufacturing.



See a comprehensive list of electrical, mechanical, physical and thermal properties for PK (Polyketone) below:



Electrical Properties of PK (Polyketone)

Electrical Property (Units) Value
PK (Polyketone) Dielectric Constant at 'Standard Temperature and Pressure' 2.7 to 3.5
PK (Polyketone) Electrical Breakdown Voltage at Atmospheric Pressure (kV/mm) ~20
PK (Polyketone) Electrical Conductivity (S/m) 1.00E-15 to 1.00E-13
PK (Polyketone) Electrical Resistivity at Room Temperature (25°C) (Ω·m) 1.00E+13 to 1.00E+15
PK (Polyketone) Magnetic Property N/A
PK (Polyketone) Superconducting Transition Temperature (K) N/A
PK (Polyketone) Temperature Coefficient of Resistance (°C⁻¹) Unknown

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Mechanical Properties of PK (Polyketone)

Mechanical Property (Units) Value
PK (Polyketone) Compressive Strength (MPa) 40 to 70
PK (Polyketone) Ductile to Brittle Transition Temperature (°C) - 10 to 0
PK (Polyketone) Fatigue Limit (MPa) 20
PK (Polyketone) Fracture Toughness (MPa·√m) 2
PK (Polyketone) Hardness Brinell 60
PK (Polyketone) Hardness Rockwell 95 HRR
PK (Polyketone) Hardness Vickers 90
PK (Polyketone) Heat Deflection Temperature (°C) 80 to 120
PK (Polyketone) Modulus of Elasticity / Young's Modulus (GPa) 1.2
PK (Polyketone) Percent Elongation (%) 10
PK (Polyketone) Poissons Ratio 0.35
PK (Polyketone) Shear Modulus (GPa) 0.6
PK (Polyketone) Shear Strength (MPa) 40
PK (Polyketone) Ultimate Tensile Strength (MPa) 70
PK (Polyketone) Yield Strength (MPa) 55

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Physical Properties of PK (Polyketone)

Physical Property (Units) Value
PK (Polyketone) Boiling Point at Atmospheric Pressure (°C) Decomposes
PK (Polyketone) Chemical Composition (Element %) (C3H4O)n
PK (Polyketone) Cost ($/kg) 4 to 6
PK (Polyketone) Density at 'Standard Temperature and Pressure' (kg/m3) 1220
PK (Polyketone) Glass Transition Temperature at Atmospheric Pressure (°C) -25
PK (Polyketone) Melting Point at Atmospheric Pressure (°C) 220
PK (Polyketone) Polymer Family Thermoplastic
PK (Polyketone) Refractive Index 1.52
PK (Polyketone) Specific Gravity 1.22
PK (Polyketone) Viscosity at Melting Point (mPa·s) Unknown

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Thermal Properties of PK (Polyketone)

Thermal Property (Units) Value
PK (Polyketone) Coefficient of Thermal Expansion (µm/m·K) 40 to 80
PK (Polyketone) Emissivity Coefficient 0.9
PK (Polyketone) Specific Heat Capacity (J/kg·K) 1100
PK (Polyketone) Thermal Conductivity (W/m.K) 0.25
PK (Polyketone) Thermal Conductivity (BTU/h·ft·°F) 0.14

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