![]() ![]() However, the material is only moderately resistant to UV radiation and can become brittle upon exposure, making it only moderately suited to outdoor applications. Its ability to withstand harsh chemical environments without degradation helps extend the service life of components, reducing maintenance costs and downtime.įurthermore, PEEK is resistant to gamma radiation, which is beneficial in industries like aerospace and nuclear, where components are often exposed to high levels of radiation. PEEK's chemical resistance is also advantageous in applications involving corrosive or reactive chemicals, such as chemical processing equipment or fluid handling systems. It is also resistant to hydrolysis, which ensures that it can maintain its structural integrity even when exposed to hot water or steam, which is especially useful in sterilization processes for medical and dental devices. PEEK demonstrates outstanding resistance to a wide range of solvents, acids, and bases, making it suitable for use in aggressive chemical environments. Chemical ResistanceĪnother critical aspect of PEEK is its excellent chemical resistance. However, as we will discuss, these excellent thermal properties make PEEK 3D printing extremely challenging, as high extrusion temperatures are required to melt the material. These thermal properties make PEEK a highly versatile material capable of meeting the stringent requirements of various industries that operate in extreme temperature conditions. This property enables PEEK components to dissipate heat efficiently, ensuring that they can function optimally in thermally demanding applications. PEEK also possesses excellent thermal conductivity, with a value of around 0.25 W/m This property is crucial in applications where maintaining tight tolerances and dimensional accuracy is essential, such as aerospace and medical devices. The material's low thermal expansion coefficient contributes to its dimensional stability under varying temperatures. As a result, PEEK components can be used in applications that experience high temperatures, such as engine components or electronics housings. ![]() These elevated temperature thresholds allow PEEK to maintain its mechanical and chemical properties in harsh thermal environments. It has a high glass transition temperature (Tg) of around 143 ☌ and a melting temperature (Tm) of about 343 ☌. ![]() PEEK's exceptional thermal properties make it stand out among other thermoplastic polymers. These mechanical properties allow PEEK to be used in various industries, including aerospace, automotive, and medical, where traditional materials might not meet the required performance criteria. Moreover, PEEK exhibits minimal creep under load, ensuring that the dimensions of printed parts remain stable even after prolonged exposure to stress. Its low friction coefficient and high resistance to deformation make it a suitable choice for components subjected to continuous or repetitive motion, such as gears and bearings. Additionally, PEEK has an impressive impact strength, ensuring that it can withstand significant stress without breaking.Īnother vital characteristic of PEEK is its excellent resistance to wear and abrasion. This level of mechanical performance is comparable to metals like aluminum and steel, making it an attractive alternative for lightweight components that require strength and rigidity. Its tensile strength can reach up to 100 MPa, and it has a flexural modulus of around 4,100 MPa. PEEK is known for its remarkable mechanical properties, which include high strength, stiffness, and toughness. The chemical composition of PEEK Mechanical Properties PEEK's unique combination of material properties makes it a preferred choice for many high-performance applications, both for prototyping and production of end-use parts. This unique combination of characteristics has made PEEK 3D printing a sought-after technology for applications where conventional materials and processes fall short. Furthermore, PEEK's high glass transition temperature and melting point enable it to maintain its properties in harsh thermal environments, while its excellent chemical resistance allows it to withstand a wide range of solvents and corrosive chemicals. ![]() The material’s high strength, stiffness, and resistance to wear make PEEK 3D printing ideal for demanding applications, particularly in aerospace, automotive, and medical industries. PEEK (polyether ether ketone) is a high-performance thermoplastic polymer, part of the PAEK (polyaryletherketone) family, that has gained popularity in the 3D printing industry due to its exceptional mechanical, thermal, and chemical properties. ![]()
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