{"id":3952,"date":"2024-09-29T11:48:52","date_gmt":"2024-09-29T11:48:52","guid":{"rendered":""},"modified":"2025-08-06T09:57:24","modified_gmt":"2025-08-06T09:57:24","slug":"peek-plastic","status":"publish","type":"post","link":"https:\/\/wp.unionfab.com\/es\/peek-plastic\/","title":{"rendered":"PEEK Plastic Material: All You Should Know"},"content":{"rendered":"

Decode PEEK plastic material from its properties, grades, and prices to its applications, and compare it with similar high-performance materials.<\/p>\n

Introduction<\/h2>\n

Polyether Ether Ketone (PEEK) is a high-performance thermoplastic known for its remarkable strength, temperature resistance, and chemical stability.<\/p>\n

Widely used in demanding applications like aerospace, medical devices, and automotive components, PEEK offers a unique blend of properties that make it ideal for environments where traditional materials fall short.<\/p>\n

In this article, we\u2019ll explore everything you need to know about PEEK, from its key properties and different grades to its processing options and the unique advantages it offers over other high-performance materials.<\/p>\n

Whether you\u2019re considering PEEK for an industrial application or simply want to learn more about this remarkable material, this guide will provide a comprehensive understanding of what makes PEEK one of the most sought-after thermoplastics in the market today.<\/p>\n

Definition of PEEK<\/h2>\n

PEEK (Polyether Ether Ketone) is a high-performance thermoplastic polymer belonging to the polyaryletherketone (PAEK) family. It is known for its exceptional combination of properties that include high mechanical strength, excellent chemical resistance, and thermal stability, even at temperatures up to 260\u00b0C (500\u00b0F). PEEK\u2019s unique attributes make it suitable for demanding applications in industries such as aerospace, automotive, medical, and oil and gas.<\/p>\n

\"Chemical<\/p>\n
Chemical Symbol of PEEK <\/em>
Source: wikipedia.org<\/em><\/figcaption><\/figure>\n

PEEK Plastic Properties<\/h2>\n

Physical Property<\/strong><\/p>\n\n\n\n<\/colgroup>\n\n\n\n\n\n
\n

Property<\/strong><\/p>\n<\/th>\n

\n

Description<\/strong><\/p>\n<\/th>\n<\/tr>\n

\n

Specific Gravity<\/p>\n<\/td>\n

\n

1.30 g\/cm\u00b3
lightweight compared to metals<\/p>\n<\/td>\n<\/tr>\n

\n

Water Absorption (24-hour Immersion)<\/p>\n<\/td>\n

\n

0.1% to 0.5%
ensuring stability in moist environments<\/p>\n<\/td>\n<\/tr>\n

\n

Dimensional Stability<\/p>\n<\/td>\n

\n

Maintains shape and size under thermal and mechanical stress<\/p>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

Electrical Property<\/strong><\/p>\n\n\n\n<\/colgroup>\n\n\n\n\n\n
\n

Property<\/strong><\/p>\n<\/th>\n

\n

Description<\/strong><\/p>\n<\/th>\n<\/tr>\n

\n

Dielectric Strength<\/p>\n<\/td>\n

\n

17-25 kV\/mm
suitable for high-voltage insulation<\/p>\n<\/td>\n<\/tr>\n

\n

Dielectric Constant<\/p>\n<\/td>\n

\n

3.2-3.5
stable across a wide frequency range<\/p>\n<\/td>\n<\/tr>\n

\n

Volume Resistivity<\/p>\n<\/td>\n

\n

10^16 ohm-cm
excellent electrical insulation<\/p>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

Mechanical Property<\/strong><\/p>\n\n\n\n<\/colgroup>\n\n\n\n\n\n\n\n\n\n\n\n
\n

Property<\/strong><\/p>\n<\/th>\n

\n

Description<\/strong><\/p>\n<\/th>\n<\/tr>\n

\n

Tensile Strength<\/p>\n<\/td>\n

\n

90-100 MPa (13,000 to 14,500 psi)
Reflects the maximum stress during stretching before breaking.<\/p>\n<\/td>\n<\/tr>\n

\n

Tensile Modulus<\/p>\n<\/td>\n

\n

3.6-4.1 GPa
Indicates stiffness, showing resistance to deformation under tensile load.<\/p>\n<\/td>\n<\/tr>\n

\n

Tensile Elongation<\/p>\n<\/td>\n

\n

20-40%
Represents the material\u2019s stretchability before breaking.<\/p>\n<\/td>\n<\/tr>\n

\n

Flexural Strength<\/p>\n<\/td>\n

\n

150-170 MPa
Measures resistance to bending forces.<\/p>\n<\/td>\n<\/tr>\n

\n

Flexural Modulus<\/p>\n<\/td>\n

\n

3.7-4.0 GPa
Shows high stiffness and rigidity.<\/p>\n<\/td>\n<\/tr>\n

\n

Compressive Strength<\/p>\n<\/td>\n

\n

110-120 MPa
Indicates the material\u2019s ability to withstand compressive forces.<\/p>\n<\/td>\n<\/tr>\n

\n

Hardness<\/p>\n<\/td>\n

\n

Shore D 85
Reflects surface wear resistance.<\/p>\n<\/td>\n<\/tr>\n

\n

Izod Impact (Notched)<\/p>\n<\/td>\n

\n

5-15 kJ\/m\u00b2
Measures toughness and resistance to sudden impacts.<\/p>\n<\/td>\n<\/tr>\n

\n

Wear Resistance<\/p>\n<\/td>\n

\n

Excellent, with a low coefficient of friction
Suitable for applications with repetitive motion and friction.<\/p>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

Thermal Property<\/strong><\/p>\n\n\n\n<\/colgroup>\n\n\n\n\n\n\n\n
\n

Property<\/strong><\/p>\n<\/th>\n

\n

Description<\/strong><\/p>\n<\/th>\n<\/tr>\n

\n

Melting Point<\/p>\n<\/td>\n

\n

343\u00b0C (649\u00b0F)
ideal for high-temperature applications<\/p>\n<\/td>\n<\/tr>\n

\n

Glass Transition Temperature (Tg)<\/p>\n<\/td>\n

\n

143\u00b0C (289\u00b0F)
indicating the transition from rigid to flexible<\/p>\n<\/td>\n<\/tr>\n

\n

Continuous Use Temperature<\/p>\n<\/td>\n

\n

Up to 250\u00b0C (482\u00b0F)
without significant loss of properties<\/p>\n<\/td>\n<\/tr>\n

\n

Thermal Conductivity<\/p>\n<\/td>\n

\n

Moderate
suitable for controlled heat transfer<\/p>\n<\/td>\n<\/tr>\n

\n

Thermal Expansion<\/p>\n<\/td>\n

\n

Low coefficient
minimizing dimensional changes with temperature<\/p>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

Other Properties <\/strong><\/p>\n\n\n\n<\/colgroup>\n\n\n\n\n\n\n
\n

Property<\/strong><\/p>\n<\/th>\n

\n

Description<\/strong><\/p>\n<\/th>\n<\/tr>\n

\n

Chemical Resistance<\/p>\n<\/td>\n

\n

Resistant to strong acids, bases, and organic solvents<\/p>\n<\/td>\n<\/tr>\n

\n

Flame Retardance<\/p>\n<\/td>\n

\n

Meets UL 94 V-0 Standards
minimal smoke and toxic gas emission<\/p>\n<\/td>\n<\/tr>\n

\n

Biocompatibility<\/p>\n<\/td>\n

\n

FDA-approved for medical implants<\/p>\n<\/td>\n<\/tr>\n

\n

Radiation Resistance<\/p>\n<\/td>\n

\n

High resistance to gamma rays and X-rays
suitable for nuclear environments<\/p>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

Grades and Variants of PEEK and Their Comparison<\/h2>\n\n\n\n\n\n<\/colgroup>\n\n\n\n\n\n\n\n\n\n
\n

Grades and Variants<\/p>\n<\/th>\n

\n

Key Properties<\/p>\n<\/th>\n

\n

Applications<\/p>\n<\/th>\n

\n

Notes<\/p>\n<\/th>\n<\/tr>\n

\n

Unfilled PEEK<\/strong><\/p>\n<\/td>\n

\n

Standard PEEK with balanced properties.<\/p>\n<\/td>\n

\n

General industrial use, medical devices.<\/p>\n<\/td>\n

\n

High purity, good for general-purpose use.<\/p>\n<\/td>\n<\/tr>\n

\n

Glass-filled PEEK<\/strong><\/p>\n<\/td>\n

\n

30% glass fiber reinforcement, increased stiffness and dimensional stability.<\/p>\n<\/td>\n

\n

Structural components, electronics.<\/p>\n<\/td>\n

\n

Improved rigidity but slightly reduced impact resistance.<\/p>\n<\/td>\n<\/tr>\n

\n

Carbon-filled PEEK<\/strong><\/p>\n<\/td>\n

\n

30% carbon fiber reinforcement, superior strength and wear resistance.<\/p>\n<\/td>\n

\n

Bearings, bushings, aerospace parts.<\/p>\n<\/td>\n

\n

Higher tensile strength and lower coefficient of friction.<\/p>\n<\/td>\n<\/tr>\n

\n

Medical-grade PEEK<\/strong><\/p>\n<\/td>\n

\n

Biocompatible, sterilization-resistant.<\/p>\n<\/td>\n

\n

Implants, surgical instruments.<\/p>\n<\/td>\n

\n

Certified for long-term human contact, FDA approved.<\/p>\n<\/td>\n<\/tr>\n

\n

Lubricated PEEK<\/strong><\/p>\n<\/td>\n

\n

Contains internal lubricants for enhanced wear performance.<\/p>\n<\/td>\n

\n

Seals, gears, sliding components.<\/p>\n<\/td>\n

\n

Reduces friction and improves wear resistance, especially for moving parts.<\/p>\n<\/td>\n<\/tr>\n

\n

Colorable PEEK<\/strong><\/p>\n<\/td>\n

\n

Customizable in various colors.<\/p>\n<\/td>\n

\n

Consumer products, visible components.<\/p>\n<\/td>\n

\n

Maintains PEEK properties while adding aesthetic flexibility.<\/p>\n<\/td>\n<\/tr>\n

\n

Conductive PEEK<\/strong><\/p>\n<\/td>\n

\n

Filled with conductive materials (e.g., carbon) to improve electrical conductivity.<\/p>\n<\/td>\n

\n

Electronics, EMI shielding.<\/p>\n<\/td>\n

\n

Balances electrical performance with mechanical integrity.<\/p>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

Processing Options<\/h2>\n

PEEK (Polyether Ether Ketone) can be processed using various methods depending on the application requirements. Here\u2019s an overview of the primary processing options:<\/p>\n

1. Injection Molding<\/h3>\n