Preparation of natural brucite nanofibers by the dispersion method

Li Xu1,2), Wen Ni1), Wenping Li3), Xingde Liu1), Hailong Yang1), and Xiaoguang Yang1) 1) State Key Laboratory of the Ministry of Education of China for High-Efficient Mining & Safety of Metal Mines, University of Science and Technology Bei- jing, Beijing 100083, China 2) China Electric Power Research Institute, Beijing 102401, China3) Kerneos Aluminate Technologies Ltd., Beijing 100027, China

摘 要：The preparation of natural brucite nanofibers through dispersion by the wet process is described. The test results indicate that brucite fibers can be well dispersed by using sodium dioctyl sulfosuccinate （OT） as the dispersant at a dispersant/fiber mass ratio of 0.15:1, dispersing for 30 min at a water/solid mass ratio of 20:1. The prepared nanofibers were characterized with X-ray diffraction （XRD）, scanning electron microscope （SEM）, and transmission electron microscope （TEM）. It is shown that the prepared single brucite nanofiber is around 30 nm in diameter and the talus of the nonsingle brucite nanofibers is about 50-150 nm in diameter. Natural brucite mineral fibers were treated by the dispersion method to obtain nanomaterials. These fibers have significant advantages over artificial nanofibers both in yield and in cost.

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