By George Wypych, Jurgen Pionteck

This is often the 1st entire guide written almost about antistatic ingredients for polymers. those are ingredients able to editing homes of fabrics in this kind of approach they develop into antistatic, conductive, and/or EMI protective. The publication comprises 22 chapters, each one addressing a selected point of houses and functions of antistatic brokers. the excellent research of functionality of those fabrics types a severe resource of data for undefined, examine, academia, and legislature.

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Wilcke, J. , Disputatio Physica Experimentalis de Electricitatibus Contraris, Rostock, 1757. , Ann. , 64, 217 (1898). References 5. 6. 7. 8. 9. 10. 11. 12. 13. 14. 15 Seanor, D. A in Electrical Properties of Polymers, Frisch, K. ; Patsis, A. , Technomic Publishing, Westport, 1972, 37-58. Van Krevelen, D. , Properties of Polymers - their Correlation with Chemical Structure; their Numerical Estimation and Prediction from Additive Group Contributions, Elsevier, Amsterdam, 1990. , Additives for Plastics, Springer-Verlag, New York, 1983, 124-134.

The rate of charge decay is a very important property in many applications. It depends on the molecular structure of the dielectric polymers but also on the environmental conditions. Moisture or impurities on the surface of the polymers strongly influence the electrification as well as the charge decay, especially in the cases of polar and hydrophilic polymers. 7 The electron capacity of insulating polymers, and therefore the charge density, is rather low. , in photographic films. The demand to control the charging of objects increased drastically with the development of new man-made plastics and fibres, which are commonly non-conductive and easy chargeable.

The higher mobility of the polar groups may be caused not only by increased temperature, but also by plasticizations or rubber modification. In composites containing fillers with high permittivities similar to metals, the relative permittivity is additive and very high εr-values can be reached. In the opposite case, foams exhibit only very low permittivities due to the low εr values of air or other gases filling the pores. Other components can influence the permittivity of a system by combined mechanism.

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