Introduction to PK materials
PK (Polyketone) is a linear semi-crystalline thermoplastic engineering polymer synthesized through the alternating copolymerization of carbon monoxide, ethylene, and propylene. It features a high degree of crystallinity and a tightly packed molecular structure, which endows PK materials with excellent mechanical properties, chemical stability, and environmental adaptability, making them highly promising for a wide range of industrial applications.
In terms of performance, PK material possesses
It can resist corrosion from various chemical agents such as acids, alkalis, and fuels, making it suitable for harsh operating conditions.
It has a low friction coefficient and excellent wear resistance, making it ideal for high-intensity moving components.
It maintains stable performance even with prolonged exposure to hot and humid environments, making it suitable for water-contact and moisture-prone applications.
It effectively reduces gas and liquid permeability, enhancing sealing performance.
It meets low VOCs environmental standards, helping to reduce the release of volatile organic compounds and supporting sustainability.
About the
INNOKETONE®
Brand
INNOKETONE® is a brand of modified PK materials under WDF, dedicated to providing customers with high-performance and high-stability modified PK resins. The brand name combines “Inno” (innovation) and “Ketone” (a type of chemical compound), symbolizing WDF’s technological advantage in the research, modification, and application of polyketone materials.
As a supplier of PK materials, WDF leverages its independent research and development and mature production system to offer customized modified PK solutions that meet the needs of various industries.
INNOKETONE®
Series Classification
Unreinforced
Series
“Unreinforced Series” features balanced mechanical strength, excellent impact resistance, and chemical stability. Its molecular structure grants the material high crystallinity, outstanding wear resistance, as well as exceptional oil and solvent resistance. It maintains stable physical properties even under high-temperature and high-humidity environments.
Ideal for scenarios requiring high wear resistance, chemical resistance, or toughness, such as industrial gears, bearings, automotive fuel system components, kitchenware, keycaps, and toys. Particularly suitable for plastic gears to reduce noise.
Unreinforced
Series
Filled/Reinforced
Series
The “Reinforced Series”, enhanced with glass fiber (GF), carbon fiber (CF), or mineral fillers, significantly improves rigidity, heat resistance, and creep resistance, and creep resistance. For example, a 30% glass fiber-reinforced grade achieves a tensile strength of over 180 MPa and a heat deflection temperature (HDT) exceeding 210°C, while maintaining low moisture absorption.
Ideal for load-bearing applications that require dimensional and physical stability. It is particularly well-suited for structural components exposed to water or demanding chemical environments, such as automotive thermal management parts (water valves, flow plates, pipe connectors), floor scrubber components, industrial robot end tools, and high-temperature-resistant electrical connectors.
Filled/Reinforced
Series
Low Warpage
Series
The Low Warpage Series, by optimizing molecular chain arrangement and incorporating mineral reinforcements, significantly reduces molding shrinkage, enhances dimensional stability, and minimizes warpage in thin-walled or complex-structured parts, while maintaining a high surface finish.
Ideal for components requiring high dimensional accuracy, such as motor housings, gearbox casings, and medical device enclosures.
Low Warpage
Series
Halogen-Free Flame
Retardant Series
The Halogen-Free Flame-Retardant Series, by incorporating environmentally friendly halogen-free flame retardants, significantly enhances flame retardancy while maintaining the original mechanical properties of POK. It meets UL94 V-0 certification and features low smoke and non-toxic combustion, complying with RoHS and environmental regulations for electronic and electrical products.
Primarily used in the electronics and electrical sectors, including charger housings, battery brackets, circuit board insulation components, as well as high-voltage components for new energy vehicles and interior parts for rail transit, where stringent safety and environmental standards are required.
Halogen-Free Flame
Retardant Series
Wear-Resistant
Modified Series
The Wear-Resistant Modified Series, through synergistic modification with special lubricants and fillers, further reduces the friction coefficient, enhances surface lubrication, and improves wear resistance. It minimizes debris generation over long-term use, reducing equipment wear and maintenance.
Ideal for high-friction, high-frequency contact components such as conveyor pulleys, automation machinery guide rails, ski bindings, and precision instrument transmission parts. It is particularly well-suited for applications requiring long-term maintenance-free operation.
Wear-Resistant
Modified Series
The above categories cover the mainstream modification directions of Worldful’s PK materials. Users can flexibly select based on specific operating conditions to achieve the integrated goals of lightweight, long service life, and cost optimization.
WDF consistently upholds the ESG development philosophy. INNOKETONE® PK materials not only feature environmental advantages such as low VOCs and durability, but also help end products reduce maintenance costs and extend service life, thereby lowering resource consumption and supporting the green and low-carbon transformation of the industrial chain.
In the future,WDF will continue to accelerate innovation and application expansion of PK materials, providing the industry with higher-performance and more environmentally-friendly engineering plastic solutions.