What is Polyketone (PK)?

Polyketone (PK) is made up of an alternating copolymer of carbon monoxide and ethylene, with some propylene. The polar ketone groups in the polymer backbone give polyketone its unique properties.

Polyketones (PK) are thermoplastic high-performance polymers with high impact strength, low wear, good solvent resistance and low water absorption. The good environmental compatibility rounds off the positive properties of this versatile material.

 Polyketone (PK) is non-toxic and biocompatible polymers that is FDA and NSF approved. It exhibits excellent chemical resistance, excellent toughness, and abrasion resistance. With its balanced properties, polyketone (PK) is widely used in markets such as automotive, water meter, water purifier, toys, medical devices, pipes, films.

What is so special about polyketone?

Polyketone polymers can be characterized as strong, tough, and ductile. Tensile yield stress is 60MPa. Stiffness iss moderate, with tensile and flexural modulus of 1.5~1.7 Gpa. Polyketone polymers also exhibit good retention of stiffness.

Superior Resilience and Snapability

Elongation at yield is very high(25%), and Polyketone polymers can subjected to much larger(repetive) deformation than any other engineering plastics before permanent deformation occurs. Polyketone polymers are also very resilient and well suited to snap-fir assemblies, allowing for relatively large design strain.

Very good Impact Performance


Polyketone polymers’ impact strength is unusually high and they exhibit a high level of ductility over a broad temperature range.