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Gallium, a scarce metal produced mainly from Bayer liquor, is widely used in semiconductors. Ion-exchange method is currently considered as the most effective method to recover gallium from Bayer liquor. In this article, fibrous amidoxime adsorbents are introduced to recover gallium from Bayer liquor. In addition, hydrazine cross-linked polyvinyl amidoxime (HPAO) fibers have been prepared. The structure...
Thermally conductive high-density polyethylene (HDPE) composites with high loadings of flake graphite (FG) and expandable graphite (EG) were prepared by melt-blending process. Thermal conductivity of the composites was measured by hot disk method, and a very high value of 13.41 W/mK was obtained for HDPE/EG composite with 60 wt% EG, which is 28.3 times and 60.4 % higher than the values obtained for...
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