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磁带是将磁性物质(如γ—Fe_2O_3)的粉末均匀分散在聚合物粘接剂中,并涂布在聚酯薄膜基带上做成的。磁带性能好坏,首先应该注意磁粉是否具有较好的磁性能。对于确定磁性材料磁性能的好坏往往是与它粒子大小、轴比、均匀性,表面性有关。在选定的粘接剂情况下,还应该考虑磁粉与该粘接材料的亲和能力和它能否在粘接剂中很好地分散。为了改善磁粉在粘接剂中分散,国内外对添加剂和生产工艺进行了广泛的研究。1975年,我们进行了磁粉处理研究工作,企图通过磁粉的处理,减少磁粉之间的相互作用、增加磁粉与粘接剂的
Tape is a magnetic material (such as γ-Fe_2O_3) powder dispersed in a polymer adhesive and coated on the polyester film base made. Tape performance is good or bad, first of all should pay attention to whether the magnetic powder has better magnetic properties. For determining the magnetic properties of magnetic materials is often good or bad with its particle size, axial ratio, uniformity, surface properties. In the case of the selected adhesive, the affinity of the magnetic powder with the adhesive material should also be taken into account and whether it can be well dispersed in the adhesive. In order to improve the dispersion of magnetic powder in adhesives, extensive research has been conducted on additives and production processes at home and abroad. In 1975, we conducted a research work on magnetic powder processing, attempting to reduce the interaction between magnetic particles, increase the magnetic powder and adhesive