7/30/2023 0 Comments Peek material full form![]() PEEK in its amorphous form still outperforms other plastics and common engineered polymers. Every aspect of PEEK is affected by decreased crystallinity, tensile, flexural, heat resistance, chemical resistance, density and even coefficient of friction. When PEEK has been chosen for an application based on specific performance values and the subsequent PEEK extrusions are not fully crystalline, resulting in an extruded part that has decreased properties than what the design originally calls for. A deeper dive into the comprehensive processing guides or technical literature is necessary to begin to understand the role crystallinity plays in PEEK’s performance.Īll data documented on each of the various PEEK grades’ technical data sheets are based on test values from fully crystallized samples, which is not clearly stated on the data sheets. But this state is not something that is entirely obvious to those that are new to or unfamiliar with PEEK. PEEK can be frozen in a fully amorphous state or even somewhere in-between. Through unique processing methods or secondary processes, the crystals need to be allowed to grow. But this crystalline structure doesn’t come easy. The chemistry of PEEK, the strength of its bonds and its semi-crystalline structure is what gives PEEK all its amazing and extreme properties. PEEK is a semi-crystalline thermoplastic polymer, which means that a portion of its molecules aligns and forms crystals while the rest remains amorphous. Its level of crystallinity is one of its most challenging and least understood characteristics. While PEEK offers many benefits over traditional materials, it requires special machinery and processing expertise to optimize its properties and ensure peak performance of extruded parts. These represent only a small percentage of standard blends available.Polyetheretherketone (PEEK) is finding its way into more and more medical applications as a replacement to legacy materials such as stainless steel and PTFE, providing a higher strength option over more common catheter and engineered polymers. These are mean values and can be altered by material source and process. Superior resistance to gamma and X-rays.Our Semi-finished capacity and capability All our materials are tested on site to International Standards so we can maintain a consistent quality product without impacting on lead times. We ensure the highest quality materials by mechanical property testing. In addition to this, we produce machine finished components for a range of industries including Aerospace, semi-conductor, Petrochem and Oil & Gas. We manufacture PEEK semi-finished products including rod, tube and sheet by compression moulding. ![]() It is extensively used in the aerospace, automotive, and chemical process industries. It is one of the few plastics compatible with ultra-high vacuum applications. ![]() It dissolves completely in concentrated sulfuric acid at room temperature.īecause of its robustness, PEEK is used to fabricate items used in demanding applications, including bearings, piston parts, pumps, HPLC columns, compressor plate valves, and cable insulation. It is attacked by halogens and strong acids as well as some halogenated compounds and aliphatic hydrocarbons at high temperatures. It is highly resistant to thermal degradation as well as attack by both organic and aqueous environments. Some grades have a useful operating temperature of up to 250 ☌ (482 ☏). PEEK has a glass transition temperature of around 143 ☌ (289 ☏) and melts around 343 ☌ (662 ☏). The Young's modulus is 3.6 GPa and its tensile strength 90 to 100 MPa. The processing conditions used to mold PEEK can influence the crystallinity, and hence the mechanical properties. PEEK is a semicrystalline thermoplastic with excellent mechanical and chemical resistance properties that are retained to high temperatures. Polyether ether ketone (PEEK) is a colourless organic thermoplastic polymer in the polyaryletherketone (PAEK) family, used in engineering applications. Our range includes over 500 materials that offerĮxceptional characteristics enabling them to operate in Our company Fluorinoid® register, based on elastomer, PTFE and thermoplastic technologies includes over 500 materials that offer exceptional characteristics enabling them to operate in demanding environmental conditions at temperatures to over 300☌. In Fluoropolymer materials, coatings and Advanced An extensive range of standard and bespoke solutions
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