11/23/2023 0 Comments Peek material supplier![]() In select applications, designers look beyond PEEK to further bridge the performance gap between that of metals and/or composites. In particular, PEEK is an appealing substitute for metal components due to its compatibility with most sterilization techniques and relatively lower cost. PEEK is often used in metal and composite replacement projects, but is also selected at times because it offers more freedom in design and fabrication compared to many other material types. This is largely because PEEK excels in applications that require high chemical resistance and heat resistance, high tensile and flexural properties, and lubricity. PEEK (polyetheretherketone) is often the preferred polymer when it comes to high performance materials for medical and other demanding market applications. Processing these polymers often involves nuances and special requirements that must be considered to achieve optimum material properties. With decades of experience in extrusion manufacturing, Spectrum understands the challenge of successfully processing high performance and high temperature polymers. So, what’s next in high performance polymers? By leveraging our material supplier relationships, Spectrum can provide recommendations to medical device designers as to which materials demonstrate the properties best suited for the design, processing, manufacturing, and sterilization requirements of a particular product. As such, it is important for contract manufacturers like Spectrum Plastics Group to engage with raw material suppliers to stay informed of new material formulations, developments, and technologies. Medical device designers utilize these new materials to create next-generation products, ideally while reducing material and production costs. Raw material suppliers are continuously challenged to advance material formulations and enhance the properties and characteristics of their existing offerings. Likewise, the utilization and understanding of Med Tech materials has advanced to include a broader range of higher performance polymers that support these technologies. In response to the demand for improved therapies and better patient outcomes, medical device technologies have continuously evolved and advanced. Extrusion Engineer – Spectrum Plastics Group Some of the properties of 450G and 150G are compared in the table below to illustrate these differences.Jonathan Jurgaitis – Sr. This is a consequence of the shorter polymer chains, which are less entangled, crystallise more readily and to a greater overall extent. However, the lower molecular weight also changes the bulk properties of the polymer: lower molecular weight PAEKs have higher stiffness and strength combined with reduced toughness, ductility and impact resistance. As a result, 150G may be more suitable for applications where lower viscosity in the melt during processing is desirable, for example, when injection moulding thin-walled parts or long, thin sections with intricate geometries impregnating carbon or glass fibres for composite prepregs or adding high levels of solid fibrous or particulate fillers and reinforcements to make compounds. ![]() ![]() VICTREX PEEK 150G is a higher flow, lower molecular weight, lower MV grade of PEEK compared to 450G. Other VICTREX PEEK grades are available with higher and lower melt viscosities and higher or lower molecular weights respectively. VICTREX PEEK 450G is defined as a standard melt viscosity (MV) PEEK grade, with a medium molecular weight. ![]()
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