AKTIFIT AM是一种激活的SILFIT Z 91，对氨基官能团硅烷进行了表面改性。作为一种功能填料，既可以单独使用，也可结合其它填料或消光剂使用。结合产生硫磺或硫磺的基团，氨基或双酚交联体系可使极性弹性体取得最佳效果。可用于需要高抗张强度和高模量以及非常低的拉伸和压缩形变的场合，兼顾出色的加工和挤出性能
Hoffmann Mineral is a manufacturer of Neuburg Siliceous Earth, a natural combination of corpuscular Neuburg Silica and lamellar kaolinite: a loose mixture impossible to separate by physical methods. As a result of natural aging, the silica portion exhibits a round grain shape and consists of aggregated primary particles of about 200 nm diameter. Such a unique structure is responsible for a relatively high specific surface area and oil absorption, which result, besides rheological activity, also in a whole range of application properties. Their manufacturing program includes the standard products Sillitin, Sillikolloid and puriss, the surface-treated Aktisil and the calcined products Silfit and Aktifit.
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