Classification standards and testing methods for insulating, conductive and antistatic PEEK
Introduction to the classification standards and measurement methods of insulating, conductive and antistatic PEEK
— Changzhou Junhua PEEK Co., Ltd.: Zhang Chengxiang and Tan Zongshang
1. Overview
Pure PEEK is an insulator with outstanding high and low voltage resistance, and can maintain its electrical properties in a wide range of temperature and frequency. However, in special industries such as electronic semiconductors, static electricity accumulation generated during the production process can absorb dust, causing electronic devices to break down and damage, or even lead to major accidents such as explosions and fires. This requires that PEEK rollers, PEEK vacuum pen tips, etc. must not only have the advantages of high temperature resistance, wear resistance, and high strength, but also have anti-static and conductive functions. Conductive auxiliary materials such as carbon fiber and graphite can be added to pure PEEK to form anti-static PEEK or even conductive PEEK.
2. Classification Standards
One of the main ways to distinguish insulators, antistatic materials and conductors is to detect their surface resistance. The classification standards are detailed in the table below:
| Features | Surface resistance | unit | Measurement method | |
| Insulation PEEK | It is an insulator, non-conductive, prone to static electricity and cannot be discharged | 1012 and above | Ω (Ohm) | Surface resistance tester |
| Antistatic PEEK | It is anti-static and can discharge static electricity. | 106-1011 | Ω (Ohm) | Surface resistance tester |
| Conductive PEEK | It is a conductor and can conduct electricity. | 103-105 | Ω (Ohm) | Surface resistance tester |
Remark:
1. Surface resistance value is referred to as surface resistance.
2. The concept of surface resistance: It refers to the ratio of the DC voltage between two points on the surface of a material to the current passing through it, unit: Ω (ohm).
3. Measurement methods, instruments and photos: There are two commonly used methods for measuring surface resistance:
1. It can be measured with a surface resistance tester, see the figure below for details.
Light-on surface resistance tester
Use a light-on surface resistance tester to test PEEK insulator products
Use a light-on surface resistance tester to test anti-static PEEK boards
Using a light-on surface resistance tester to test the conductor PEEK rod
Note: The surface resistance tester is designed according to EOS/ESD, CECC, ASTM and UL test procedures, and is used to measure the impedance or resistance of all conductive, antistatic and electrostatic discharge surfaces. There are two types: light-on type and heavy hammer type. Junhua uses the light-on type.
2. It can also be measured with a megohmmeter (also called a multimeter)
The pictures of using a megohmmeter to test insulators, antistatic bodies and conductors are as follows:
Product picture of PEEK insulator tested by megohmmeter
Megohmmeter to measure anti-static PEEK amplitude modulation nut picture
Megohmmeter to measure anti-static PEEK amplitude modulation nut picture
