Polyester fabric modified with atmospheric dielectric barrier discharge supplied with voltage of different frequencies

• Дата: 2010
• Автори: Píchal, J., Sláma, J.
• Формат: Стаття
• Мова: English
• Опубліковано: Національний науковий центр «Харківський фізико-технічний інститут» НАН України 2010
• Теми: Низкотемпературная плазма и плазменные технологии
• Онлайн доступ: http://dspace.nbuv.gov.ua/handle/123456789/17500
• Назва журналу: Digital Library of Periodicals of National Academy of Sciences of Ukraine
• Цитувати: Polyester fabric modified with atmospheric dielectric barrier discharge supplied with voltage of different frequencies / J. Píchal, J. Sláma // Вопросы атомной науки и техники. — 2010. — № 6. — С. 188-190. — Бібліогр.: 4 назв. — англ.

Final characteristics of polymers are the compromise between wanted surface and bulk properties. Important change of the polymer use-value can be caused by modification of characteristics of its upper structural units (i.e. in region under the surface deep some tens of nanometers). These changes – and modification – can be performed i. a. by treatment with the “cold” plasma and moreover with low costs and minimum environmental impact. Modification of polymer surface characteristics may proceed during functionalization, when plasma particles react with polymer surface molecules and new chemical functional groups are formed on polymer surface. These chemical reactions can be influenced with composition of atmosphere in the plasma reactor, e.g. application of oxygen plasma leads to polymer surface energy and wettability increase. To evaluate the efficiency of this process, we studied connection of the ADBD supply energy/voltage frequency and changes of the polymer surface chemical composition. ADBD was operated in the filamentary regime. Experiments proved that growing supply voltage frequency that produced also reactor input energy increase allowed both substantial reduction of treatment time and more effective modification.