In What Ways Does Polyether Ether Ketone (PEEK) Differ From Other Materials?
In What Ways Does Polyether Ether Ketone (PEEK) Differ From Other Materials?
PEEK plastic is distinguished by its exceptional strength and toughness, stability in water-bound settings, and resilience to wear and chemicals. PEEK was developed specifically for use in extreme heat; thus, it continues to function at temperatures well above 500 degrees Fahrenheit. PEEK does not easily catch fire, even when melted, and produces little smoke and no harmful gases. PEEK is superior to other plastics in terms of its strength-to-weight ratio, thermal conductivity, and lubricity, all of which are required for bearing applications. It is resistant to fatigue, stress cracking, and ultraviolet light and has good abrasion and wear resistance as well. PEEK is a rigid material; however, it can show flexibility on par with other polymers (though this will greatly depend on the PEEK grade used). PEEK is great for medical implants and devices due to its biocompatibility and flexural modulus, which are most similar to those of human cortical bone. PEEK is imperceptible to imaging modalities like MRI and CT scans and is also resistant to gamma rays thanks to its pure radiolucency. PEEK can withstand attacks from solvents, oxidation, and acids, and it is resistant to nearly all organic and inorganic compounds.
Where Does PEEK (Polyether Ether Ketone) Fit In?
PEEK plastic has several industrial uses, including but not limited to the following:
- Bearing balls
- Components of a pump or piston
- Sheathing for cables
- Electronics-related screws and bolts
- Components for automobiles
- Instruments and prosthetics for surgery
- Products that come into contact with food must meet FDA standards.
- Insert molded components
- Aerospace hardware
- Equipment for making semiconductors and more
When Compared to Other Plastics, How Does Polyether Ether Ketone (PEEK) Stack Up?
PEEK plastic is one of the most robust and resistant plastics that can be easily shaped using an injection moulding machine. Because of its natural self-lubricity, PEEK may be injected into moulds with minimal friction. It has excellent fluidity when melting and can make components that are as strong as metal components yet weigh a fraction as much. PEEK polymers are the only ones that can meet the high performance and low weight requirements of injection moulding, regardless of the complexity of the part’s geometry.
How Does Polyether Ether Ketone (PEEK) Stack Up Against Other Plastics for Injection Molding?
Injection moulding with PEEK plastic presents challenges due to the material’s complex processing parameters, including the need for high temperatures and the occurrence of anisotropic shrinking upon cooling. To prevent damage from machining pressures, PEEK, like other machined polymers, requires additional setup steps and working considerations. Finally, the moisture level of PEEK pellets must be reduced to below 0.02% for the material to be successfully injection-molded.
Polyether ether ketone (PEEK): What Effects Does It Have on People’s Health?
PEEK is a versatile material that may be utilized for both internal and external medical implants thanks to its approval as both a food contact and medical device material. When compared to other polymers, PEEK has negligible (if any) health effects from exposure in any form and produces negligible fumes or toxic smoke even when heated. Recent research has shown that the main health risk associated with working with PEEK is the potential for burns from hot or molten PEEK during processing; nevertheless, these burns may be treated in the same way as any other thermal burns.
What about PEEK? Does it have any toxicity?
There are no indications of physical risks, hazardous statuses from OSHA or other regulatory organizations, or toxicological threats on most safety data sheets. There is no evidence that PEEK releases dangerous substances into the environment, and ingestion, inhalation, or skin/eye contact with PEEK will only result in mechanical irritation.
Is injection moulding possible with PEEK plastic?
PEEK may be moulded using conventional IM equipment. PEEK has a high melting temperature, often between 350 and 400 degrees Celsius (662 and 752 degrees Fahrenheit), so operators must adjust production temperatures accordingly. Due to their propensity to collect moisture from the environment, PEEK grains and pellets must be adequately dried before injection moulding, with operators aiming for a moisture content of 0.02%. Because of PEEK’s high melting temperature, contamination from other polymers will quickly degrade and leave unattractive scars (or worse, negatively influence) on the final injection mould, so it’s important to avoid any mixing of these materials throughout the injection moulding process. The IM machine or the regrinding process may become contaminated.
What Sets Polyether Ether Ketone (PEEK) Apart From Ethanol?
PEEK is an engineering thermoplastic with exceptional performance, while ethanol is a colourless, volatile liquid with solvent and fuel applications. At normal temperature, PEEK exists in the solid state, while ethanol is liquid. Alcoholic drinks rely on ethanol, which is produced through the anaerobic fermentation of carbohydrates into ethanol and CO2. In contrast, aromatic monomer units are used in a step-growth polymerization process to generate PEEK.
