Morphology of the surface and magnetic resonance properties of lavsan modified by steel clusters by ion-plasma exposure

• Main Authors: A. G. Anisovich, I. P. Akula, A. P. Laskovnev, M. I. Markevich, V. T. Stelmakh, N. M. Chekan
• Format: Article
• Language: English
• Published: Belarusian National Technical University 2019-10-01
• Series: Litʹë i Metallurgiâ
• Subjects: polyethylene terephthalate (lavsan) fabric; magnetic – resonance absorption; cathode-arc deposition; electromagnetic pollution of the environment
• Online Access: https://lim.bntu.by/jour/article/view/3034

Polymeric materials are mainly dielectrics. The use of protective clothing made of such materials may occur accumulation of static electricity. The electrification of materials creates a fire hazard in the presence of dust and various gas mixtures. For reducing the accumulation of static electricity charges on the surface of protective clothing carried out the modification of polyethylene terephthalate by clusters of steel 12X18H10T. Modification was carried out in a vacuum using stationary metal plasma source operating in the mode of separations. The process was carried out by alternating periods of the source plasma (1 minute) and pause for tissue cooling (1 minute).The results of the study of the surface morphology of polyethylene terephthalate steel coated fabrics and magnetic resonance absorption measurements of microwave energy is given. The main regularities of the magnetic-resonance absorption spectra are revealed. Method of electronic magnetic resonance (EMR) found that the spectra are inhomogeneous broadened broad lines with effective g-factor value of 2.2±0.1 and the line width of 110.1 mTl. It was found that the non-resonance absorption of the electromagnetic field of microwave is insignificant.