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本文通过改变分散剂,砂磨时间和磁粉填充率,研究了磁浆的流变特性以及磁性薄膜的机械特性和磁特性,结果表明,三者之间反映出良好的对应关系,流变特性的测量可以作为评价磁粉分散性和配方组分如分散剂使用效果的一种简便而有效的方法。通过流变特性的测量,可以选择磁粉和分散剂的最佳含量以及最佳砂磨时间;对于一种给定的磁粉,存在着与粘合剂的最佳比值,据此可以得到最佳的机械特性,磁特性和流变特性,这种最佳的比值表明,在磁浆内部存在着磁粉-粘合剂的最佳结构。
In this paper, the rheological properties of magnetic slurry and mechanical properties and magnetic properties of magnetic films were studied by changing the dispersant, sanding time and magnetic particle filling rate. The results showed that there was a good correspondence between the three, rheological properties The measurement can be used as a convenient and effective method for evaluating the dispersibility of magnetic particles and the effects of the use of the formulation components such as dispersants. Through the measurement of the rheological properties, it is possible to select the optimum content of the magnetic powder and dispersant as well as the optimum sanding time; for a given magnetic powder there is the optimum ratio to the binder, from which the best Mechanical properties, magnetic properties and rheological properties, the best ratio indicates that there is magnetic powder inside the best structure of the binder.