by Denise Sullivan Denise Sullivan No Comments

Exploring the Revolutionary Applications of PEEK Plastic Material: A Comprehensive Overview of PEEK Material Application in Various Industries

The demand for high-performance materials has increased in recent years, driven by technological advancements and a need for superior properties in various industries. One such material that has gained significant attention is Polyether Ether Ketone (PEEK) plastic. With its unique combination of exceptional mechanical, thermal, and chemical properties, PEEK has become a game-changer in multiple sectors.

peek material application

This article aims to provide a comprehensive overview of the revolutionary applications of PEEK plastic material across different industries. From aerospace and automotive to medical and electronics, we will explore how this versatile material transforms these sectors with its remarkable performance capabilities.

The Versatility of PEEK Plastic Material

PEEK plastic is known for its outstanding versatility and exceptional properties. Let’s delve into some key characteristics that make it an ideal choice for various applications:

  1. High-Temperature Resistance: One of the standout features of PEEK plastic is its ability to withstand extreme temperatures. It can operate continuously at temperatures up to 260°C (500°F) without losing its mechanical properties or degrading chemically.
  2. Mechanical Strength: PEEK exhibits impressive mechanical strength and stiffness, making it suitable for demanding applications where structural integrity is crucial.
  3. Chemical Resistance: This material is excellently resistant to chemicals such as acids, bases, solvents, fuels, and radiation exposure.
  4. Low Friction Coefficient: With a low friction coefficient comparable to that of lubricated metals like steel or brass, PEEK reduces wear and tear while improving the efficiency of moving parts.
  5. Biocompatibility: Due to its biocompatible nature, PEEK is ideal for medical applications where compatibility with human tissues is vital.
  6. Electrical Insulation Properties: PEEK is widely used in electrical and electronic applications due to its high dielectric strength and low moisture absorption.

With these remarkable properties, it’s no wonder that PEEK plastic is widely used in various industries. Below, we’ll explore some of the revolutionary applications of this material.

Aerospace Industry: Lightweight Solutions for Enhanced Performance

The aerospace industry demands lightweight materials to withstand extreme conditions and improve fuel efficiency. PEEK plastic has emerged as an excellent choice for various aerospace applications:

  1. Aircraft Interiors: PEEK’s ability to meet stringent flammability standards makes it a preferred material for aircraft interiors. It is used in seating systems, ducting, insulation panels, and cabin interiors.
  2. Engine Components: With its high-temperature resistance and mechanical strength, PEEK is employed in engine components like seals, gaskets, thrust washers, bearings, and compressor parts.
  3. Aircraft Structural Parts: PEEK’s lightweight nature reduces weight in aircraft structural parts without compromising strength or durability.

Automotive Industry: Advancing Performance and Efficiency

In the automotive sector, where performance and efficiency are paramount concerns, PEEK plastic offers several advantages:

  1. Engine Components: Similar to aerospace applications, PEEK is used in various engine components such as piston rings, valve seats/inserts, connectors/seals for turbochargers, and exhaust systems due to its ability to withstand high temperatures and chemical resistance.
  2. Electrical Systems: Electric vehicles are becoming more popular globally due to their eco-friendly nature, and the demand for reliable electrical systems is also increasing. Thanks to its excellent electrical insulation properties and resistance against thermal degradation under high voltage conditions, PEEK has become an ideal choice for connectors/plugs within these systems.
  3. Interior Applications: In vehicle interiors where weight reduction is crucial without compromising safety or aesthetics, manufacturers utilize the lightweight yet robust characteristics of PEEK for components such as seat frames, door handles, and dashboard parts.

Medical Sector: Transforming Healthcare Solutions

PEEK plastic has revolutionized the medical industry with its exceptional biocompatibility and sterilization compatibility. Here are some notable applications:

  1. Orthopedic Implants: PEEK’s biocompatible nature, strength, and radiolucency make it an ideal material for orthopedic implants such as spinal cages, joint replacements, and trauma fixation devices.
  2. Dental Applications: PEEK is used in dental prosthetics like crowns and bridges due to its excellent esthetics, durability, resistance to wear against natural teeth, and biocompatibility with oral tissues.
  3. Surgical Instruments: The lightweight nature of PEEK, combined with its chemical resistance, makes it a preferred choice for surgical instruments that require autoclaving or repeated sterilization cycles.
  4. Medical Devices: From catheters and pacemaker components to drug delivery systems and diagnostic equipment housings, PEEK enables the development of advanced medical devices that meet stringent regulatory requirements while enhancing patient care.

Electronics Industry: Enabling Technological Innovations

In the ever-evolving electronics industry, where miniaturization is critical, PEEK plays a crucial role in enabling technological innovations:

  1. Printed Circuit Boards (PCBs): With their excellent electrical insulation properties and high-temperature resistance, PEEK is used as PCB substrates, providing stability under extreme conditions while ensuring signal integrity.
  2. Connectors/Plugs: Due to their high dielectric strength and chemical resistance, PEEK connectors/plugs help maintain reliable electrical connections in electronic devices, even in harsh environments or when exposed to aggressive substances.
  3. Insulation Components: In power electronics applications with critical thermal management, PEEK insulating materials help dissipate heat effectively while providing electrical insulation between circuit board components.

PEEK plastic has emerged as a revolutionary material that is transforming various industries by providing exceptional performance capabilities across different sectors. Its unique combination of mechanical strength, chemical resistance, thermal stability, biocompatibility, and electrical insulation properties have made it indispensable in aerospace engineering, automotive manufacturing, medical advancements, and electronics innovations. From reducing weight and improving fuel efficiency in aircraft and automobiles to enhancing patient care with biocompatible orthopedic implants and medical devices, PEEK plastic continues to push the boundaries of what is possible.

As industries continue to evolve and demand increasingly high-performance materials, PEEK will undoubtedly play a vital role in driving innovation and finding new applications. With its versatility, reliability, and remarkable properties, PEEK plastic has become a game-changer that opens up new possibilities for technological advancements across multiple sectors.

Frequently Asked Questions (FAQs)

  1. Q: What are the advantages of using PEEK plastic over other materials?
    A: PEEK offers advantages such as high-temperature resistance, exceptional mechanical properties, chemical resistance, low friction coefficient, biocompatibility, and electrical insulation. These qualities make it ideal for various industries requiring superior performance.
  2. Q: Is PEEK plastic environmentally friendly?
    A: PEEK plastic is considered environmentally friendly as it can be recycled and reused multiple times without losing its performance properties. Additionally, its lightweight nature contributes to fuel efficiency in transportation applications.
  3. Q: How does PEEK compare to metal alloys regarding weight reduction?
    A: Compared to metal alloys like steel or aluminum, PEEK plastic reduces weight while maintaining strength and stiffness. This makes it attractive for industries seeking lightweight solutions without compromising performance.
  4. Q: Can PEEK withstand sterilization processes used in medical applications?
    A: One of the remarkable features of PEEK is its ability to withstand repeated sterilization cycles commonly employed in medical applications such as autoclaving or ethylene oxide sterilization.
  5. Q: Is PEEK suitable for high-frequency electronic applications?
    A: Absolutely! The excellent electrical insulation properties and low dielectric loss tangent make PEEK a preferred material for high-frequency electronic applications where signal integrity is crucial.
by Denise Sullivan Denise Sullivan No Comments

How Canted Coil Springs Provide EMI/RFI Protection

Canted coil springs

The rise of technology has brought about a new era of innovation and efficiency in the modern world. With the advancement of electronic devices, there has been an exponential increase in the number and type of gadgets we use daily. Electronics have become integral to our lives, from smartphones to computers, cars to airplanes. However, with this increase in usage comes a corresponding increase in electromagnetic interference (EMI) and radio frequency interference (RFI). EMI/RFI can cause significant harm to sensitive electronics resulting in malfunctioning or failure. Canted coil springs can be a way to protect equipment from EMI/RFI interference.

Canted Coil Springs as EMI Shielding

Shielding sensitive electronics from EMI/RFI is thus an essential requirement for any electronic device manufacturer. Various shielding solutions, like metal shields or coatings, often suffer from weight, thermal management problems, and low flexibility.

This is where canted coil springs come into play. These springs provide superior EMI/RFI shielding while being lightweight and flexible. The unique design features independent coils that serve as multiple contact points for optimal conductivity and/or grounding, ensuring consistent, reliable connection with mating surfaces under shock and vibration.

The precisely engineered coil angles ensure that these springs provide maximum surface area contact, resulting in efficient current transfer and decreasing contact resistance between mating surfaces. This feature leads to less energy loss due to heat dissipation than traditional designs, translating into better performance over time.

Canted coil springs are made using various materials, including stainless steel alloys capable of handling high temperatures without losing shape over time, ensuring longevity even under harsh operating conditions.

Applications as EMI Shielding

These unique springs can be used for applications ranging from medical equipment to aerospace systems, where reliability is paramount. One such example is their use as connectors between motherboard components on computers, where they reduce the noise created by signal transference between components leading to improved overall system performance.

Canted coil springs can also be used as cable shielding, providing flexible, lightweight, and low-resistance solutions for high-speed data transmission cables. They are especially useful in applications where weight is critical, like aerospace or automotive.

Advantages of Canted Coil Springs

An advantage of these springs is their ability to absorb shock and vibration, reducing the risk of damage to electronics due to mechanical stress over time. This feature makes them ideal for use in rugged environments such as military applications, industrial machinery, or heavy-duty vehicles.

In addition, canted coil springs are easy to install and require no additional hardware making them a cost-effective solution for manufacturers. They can be easily integrated into existing designs without redesigning entire systems, thus reducing development costs while still providing superior performance.

Overall, canted coil springs offer an excellent solution for EMI/RFI shielding needs with their superior conductivity, flexibility, and shock absorption capabilities, all while being lightweight and easy to install. Their versatility makes them an excellent choice for almost any application where reliable electronic performance is essential.

PVDF is used extensively in pumps, valves, fittings, and pipes
by Sara McCaslin, PhD Sara McCaslin, PhD No Comments

The Basics of PVDF

Kynar PVDF (property of Arkema) is a high purity polymer that combines extreme-temperature performance, easy manufacturability, and durability in some of the harshest environments. 

What is PVDF?

PVDF (polyvinylidene difluoride or polyvinyl fluoride) is a fluorinated thermoplastic resin that is classified as a specialty polymer whose brand names include Kynar (Arkema), KF (Kureha), and Solef or Hylar (Solvay). This engineering polymer can often be found in environments that involve high purity, hot acid, extremely high temperatures, and/or radiation. 

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by Sara McCaslin, PhD Sara McCaslin, PhD No Comments

Medical Engineering in the Age of COVID-19

Medical Engineering in the Age of COVID-19

Due to the COVID-19 pandemic, there has been an increase in worldwide demand for thermal scanners, respirators, and ventilators. This has been accompanied by an increased need for medical disposables such as gloves, respirators, medical masks, face shields, single-use syringes, and drapes. As a result, medical engineering and manufacturing both have temporarily shifted their focus and the results are fascinating.

3D printed hand sanitizer clasp

Additive Manufacturing

Shortages of some items have led to innovative design and manufacturing, much of it involving additive manufacturing using polymer materials. For example, Old Dominion University has been 3D printing masks and mask components made from PLA and designed so that they can be easily sterilized and reused. Europe has already seen companies in the 3D printing industry volunteer their equipment and knowledge to aid in manufacturing replacement parts for critical equipment such as oxygen and respirator valves, and many other countries are doing the same thing. 

Ventilator Designs

Many countries, including the United States, are worried about a potentially deadly shortage of ventilators. Various technology firms worldwide such as Nvidia are working to design critical care devices that can be produced both quickly and inexpensively. NASA has been given permission to start production of their emergency use ventilator that can be manufactured and built quickly, with the only drawback being its limited lifespan. 

In addition, ventilator manufacturers such as Medtronic have ramped up production and publicly shared their design specifications for one of their ventilator models so others can help meet this critical need.

Innovation

Engineers all over the world are looking for ways to make the treatment of COVID-19 patients easier and safer for medical personnel. For example, engineers in the Boston area have teamed up local doctors to develop a 3D printed bracket that will hold the tube and respirator hookup together in ventilator patients. The goal is to prevent release of the COVID-19 virus into air when these connections come undone, as they often do. 

Others at Boston University are looking at polymer nasal swabs that will do a better job of collecting mucus for COVID-19 tests, which could increase the reliability of testing and help with testing material shortages. At the Oxford Institute of Biomedical Engineering, engineers are leveraging wearable technology to allow nurses to track the vitals of COVID-19 patients who are not on ventilators and thus must remain mobile to recover.

Conclusion

The COVID-19 pandemic has changed how much of the world lives, and has affected a shift in the focus of many engineers. Trademarks of this shift include the use of additive manufacturing for PPE and replacement parts for life-saving equipment, a fresh look at ventilator designs that emphasizes manufacturability and availability, and the birth of innovative approaches to medical issues related to the pandemic. And, in this midst of this, companies like Advanced EMC are still working hard to make available the right polymer seals and bearings needed for medical equipment. 

by Sara McCaslin, PhD Sara McCaslin, PhD No Comments

Canted Coil Springs: Benefits for Medical Applications

What is a Canted Coil Spring?

Canted coil springs (also known as cant or slant coil springs) are not your typical spring, and this becomes obvious when you take a look at the three different types of tasks they support:

  • Acting as a mechanical connector
  • Energizing seals for better performance
  • Providing EMI/RFI shielding
  • Serving as a multiple contact point conductor

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