Technical information PEEK is often used in the Medical industry, Aerospace, Automotive, Semi-conductor, Electrical industry and other demanding industries. Filled: glass, carbon or a combination of carbon/graphite/PTFE etc. 1Introduction 2Lens Material Properties 2.1Index of Refraction 2.2Chromatic Dispersion 2.3Abbe Number 2.3.1Abbe Diagram 2.3.2Crown vs Flint Glass 2.3.3Chromatic Dispersion Correction 2.4Specific Gravity 2.5Ultraviolet Absorption 3Common Eyeglass Lens Materials 3.1Standard glass 3.2Standard plastic 3.3Polycarbonate 3.4Trivex 3.Working temperature from -40☌ to +250☌ (short periods +310☌) Properties of PEEK can be improved by adding additives like carbon, glass etc.Excellent strength, rigidity and toughness at elevated temperatures.PEEK can withstand a continuous working temperature of 250☌ and has an excellent long-term chemical resistance. PEEK has a unique combination of thermal, mechanical and chemical resistance properties. PEEK offers exceptional performance over a wide range of temperatures and extreme conditions. Continuous Service Temp / Fair Bearing and Wear Properties.PEEK (polyetheretherketone) PEEK is generally considered to be one of the best performing thermoplastics in the world. Sheet Thickness Availability (Off the Shelf)Įxcellent Chemical Resistance / 480 degrees F. Excellent chemical resistance to organics. Chemical resistance: Very good resistance against virtually every substance, even at. Rod Diameter Availability (Off the Shelf) PEEK performs over a wide range of temperatures and can be use continuously in operating temperatures up to 250C. Thermal properties: Tg around 150 C, Tm 340 C. Tg depends on the chemical structure of the polymer defined by its crystallinity. Which type of polymers undergo glass transition Polymers are made up of long chains of molecules. Online calculator, figures and tables showing specific heat, C P and C V, of gasous and liquid ammonia at temperatures ranging from -73 to 425C (-100 to 800F) at pressure ranging from 1 to 100 bara (14.5 - 1450 psia) - SI and Imperial Units. The Tg for most synthetic polymers lies between 170K to 500K. Influence of thermal processing conditions in 3D printing on the crystallinity and mechanical properties of PEEK material. Degree Fahrenheit (☏) Kelvin (K) The value depends on the mobility of the polymer chain. 7 where in the range 25300 ☌ DSC curves reveal the only peculiarity upon heating. Maximum Unlubricated No Load Bearing Velocity (V)Ĭoefficient of Thermal Expansion // to LaminatesĬoefficient of Thermal Expansion I to Laminates Polyetheretherketone has very high continuous operating temperature (250C), high strength and hardness, high tensile and alternating bending strength (high. The temperature dependence of the specific heat capacity C p (t) for CF-PEEK composites is represented in Fig. SpecificationĬompressive Strength ⊥ to Laminate (Modulus)Ĭompressive Strength ⊥ to Laminate (Yield)Ĭompressive Strength ⊥ to Laminate (Ultimate)Ĭoefficient of Friction (Dry vs Steel) StaticĬoefficient of Friction (Dry vs Steel) Dynamic PEEK PVX is an excellent alternative to bearing grade fluoropolymers, it also works well for seal components where ductility and inertness are important. A new bearing grade PEEK PVX offers superior bearing and wear performance at elevated pressure and velocity (PV) levels. Carbon fiber, Graphite and PTFE reinforced grades provide excellent dimensional stability and increased bearing and wear properties at higher loads. PEEK offers steam and wear resistance and is now available black making ideal for instrument components where aesthetics are important. in hot water and/or steam without permanent loss of physical properties. With a V-O flammability rating PEEK can be used continuously to 480 degrees F. Chemically resistant to aggressive environments, suitable for sterilization for medical and food contact applications. All grades of PEEK offer excellent chemical and hydrolysis resistance similar to PPS (polyphenylene Sulfide), but can operate at higher temperatures. 5 found that excellent chemical stability and reprocessability of PEEK make it possible to use in the space manufacturing to reduce the need of raw materials. Unreinforced grades of PEEK (polyetheretherketone) offer high elongation and toughness. PEEK (poly-ether-ether-ketone) is an engineering thermoplastic with high tensile strength and good biocompatibility. PEEK plastic is a semicrystalline engineering thermoplastic of the polyaryletherketone (PAEK) family with high-temperature tolerances, strength, and stability across harsh environments. PEEK is a high performance thermoplastic used in many medical and pharmaceutical applications. 9 min read Polyether ether ketone (PEEK) plastic is a highly coveted engineering material, thanks to its superb blend of strength, resistances, and workability.
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