The Study Of Surface Modification Of PET Fiber By Continuous Treatment In Atmospheric Dielectric Barrier Plasma

In this study, the experiment device is the home-made atmospheric dielectric barrier discharge(DBD) system, including the plasma reaction chamber, gas supply system and continuous fiber transmission device. The atmospheric DBD for material modification has the following characteristics: simple discharge equipment, less cost than low-pressure plasma device; the large scale coaxial electrodes, is easy to get the uniformity of plasma; the reaction chamber's structure is beneficial to chemical reaction and good material modification results. As physical dry process, the atmospheric DBD meets the industrial requirements of national environmental protection and energy savings.In addition to electrical function and optical diagnostics, the gas analysis and audio analysis were used as new atmospheric DBD diagnosis, in order to get more data of plasma. The gas analysis of plasma products detected atomic oxygen in an argon-oxygen plasma, which is hard to observe in optical emission spectrum. And audio analysis is suitable methods for the condition which is difficult for other diagnostic, and it is simple and cheap. It is found that the interfacial adhesion strength between treated PET fiber and resorcinol formaldehyde latex (RFL)-rubber was greatly improved (about 50%) by the measurement of interfacial shear strength (IFSS) and peel test. The wettability was improved rapidly in the initial treatment time. It is considered that oxidation chemical reaction as the major role of PET fiber surface modification ahead of the physical etching effect.The atmospheric DBD plasma can be applied to kinds of cord materials' modification, to meet the needs of the market national environmental protection and energy savings...