Electrostatic discharge materials (ESD materials) are plastics that reduce static electricity to protect against damage to electrostatic-sensitive devices (ESD) or to prevent the accidental ignition of flammable liquids or gases.
Materials
The properties relevant to a material in an ESD context are:
- Conductivity: how well it passes electricity. When dealing in thin sheets, sheet resistance is used, describing the resistance of a square of the material for a current flowing from one edge to the opposite edge. The value is depends on the thickness of the material.
- Antistatic: whether rubbing can cause dangerous electrostatic buildup (> 1000 V) on the material via triboelectric effect.
- Static-dissipation: whether any existing static charge can be gradually removed by conducting through the material.
- Shielding: whether the electromagnetic field due to an electrostatic discharge from the outside results in a non-dangerous amount of voltage on the inside.
- Isolation: whether the two sides of the material are electrically isolated enough, so that any discharge that happens across the material is weak enough.
See also
References
Further reading
- The Wiley Encyclopedia of Packaging Technology; 1st Edition; Kit. L. Yam; John Wiley & Sons; 1353 pages; 2009; .
- Plastics Additives Handbook; 6th Edition; Zweifel, Maier, Schiller; Hanser Publications; 1222 pages; 2009; .
- Handbook of Conducting Polymers; 3rd Edition; Skotheim and Reynolds; CRC Press; 1680 pages; 2007; .
- Conductive Polymers and Plastics: In Industrial Applications; 1st Edition; Larry Rupprecht; Elsevier; 293 pages; 1999; .
- Plastics Additives and Modifiers Handbook ; 1st Edition; Jesse Edenbaum; Springer; 1136 pages; 1992; .
- Metal-Filled Polymers: Properties and Applications; 1st Edition; S.K. Bhattacharya; CRC Press; 376 pages; 1986; .
External links