Electric properties of fiber forming polymers modified with metal sulfides

• Autorzy: Koprowska J. , Kacprzyk R. , Zawadzka-Michalak L.
• Języki publikacji: EN

Abstrakty

EN

Electro-conductive fibers can be obtained in numerous ways. The surface modification of fiber material is one of such methods. The subject of the research were electro-conductive polyacrylonitryl fibers, which were modified with semi-conductive copper and silver sulfides in the finishing process. The method, consisting in coordinative binding of the above-mentioned chemical compounds with the fiber forming polymer was developed at the Textile Research Institute in Łódź. This paper shows the results of the tests that allow to determine that the probable dominating conductivity mechanism of the specified fibers is the electron mechanism. The conclusions concerning the conductivity mechanism of polyacrylonitryl modified with copper and silver sulfides were based on the measurements of resistance and the thermoelectric power. The values of the determined Seebeck's coefficient for the above-mentioned group of materials were at the level of α = 8 - 12 žV/deg for average temperature in the 310 - 330 °K range. The researchers stated that the coefficient depends on the temperature. Both the values and temperature dependencies of the α coefficient show that it is mainly the charge carriers with energies close to the Fermi's level (metallic conductivity) that are responsible for the electric conductivity.

Słowa kluczowe

EN

polyacrylonitryl; modification; metal sulfides; electric conductivity

PL

poliakrylonitryl; modyfikacja; przewodność elektryczna

• Wydawca: West Pomeranian University of Technology. Publishing House
• Czasopismo: Polish Journal of Chemical Technology
• Rocznik: 2006
• Tom: Vol. 8, nr 3
• Strony: 87--89
• Opis fizyczny: Bibliogr. 5 poz., rys., tab.

Twórcy

autor

Koprowska J.

autor

Kacprzyk R.

autor

Zawadzka-Michalak L.

• Textile Research Institute, ul. Brzezińska 5/15, 92-103 Łódź,

Bibliografia

• (1) Koch M.: Applications of Electrically Conductive Textiles, EMC Zurich, 2001.
• (2) Okoniewski M., Koprowska J.: Textilveredlung 1982, nr 6, s.250
• (3) Tauc J.: Zjawiska fotoelektryczne i termoelektryczne w półprzewodnikach. PWN, Warszawa, 1966.
• (4) Oreszkin P. T.: Fizika Poluprovodnikov i Dielektrikov. Izd. Vysszaja Szkola, Moskva, 1977.
• (5) Kacprzyk R., Koprowska J.: ,,Thermoelectric Properties of Selected Textile Fabrics", VI Int. Symposium ELTEX, Łódź, 2004