| Abstract: | Polymers are responsible for a large proportion of audio/video/computer tape characteristics. Several years ago, the polymers used as a binder were selected only empirically without fundamental study. From this standpoint, the authors have systematically investigated the different effects of functional groups of various polymer binders on electromagnetic performance. As a result, it was found that the proper design of polymer binders offers significant potential for further improvement in magnetic performance. With the recent introduction of high dispersion and high durability binders, it has become clear that the particulate media like a metal tape dominates in the field of higher density recording media such as an 8 mm and Hi-8 video tape, a professional video tape like a Beta CAM SP, D2, D3, UNIHI and 1.2 Gb/s HD, and a DAT streamer tape. |
