Nanoscale dispersion of palygorskite bundles by a facile mechanical/chemical approach | |
Department | 环境材料与生态化学研究发展中心 |
Wang WB (王文波)1,2; Wang FF (王方方)1; Kang YR (康玉茹)1,2; Zong L (宗莉)1,2; Wang Q (汪琴)1,2; Wang AQ (王爱勤)1,2 | |
The second department | 中科院兰州化学物理研究所盱眙凹土应用技术研发中心 |
2018 | |
Conference Name | International Conference on Nanomaterials and Nanotechnology |
Source Publication | Advanced Materials Proceedings |
Volume | 3 |
Issue | 7 |
Pages | 447-453 |
Conference Date | 2017 |
Conference Place | India |
Author of Source | International Association of Advanced Materials (IAAM) |
Publication Place | Sweden |
Publisher | VBRI Press |
Abstract | In this paper, we developed a simple mechanical/chemical process to efficiently disperse palygorskite (PAL) crystal bundles into individual nanorods. The “cavity effect” of high-pressure homogenization process generated many “Miniature bombs” in the interior gap of crystal bundles, which may mildly “blast” and effectively burst through the hugged PAL rod crystals without losing their original aspect ratio. Sodium metaaluminate (SM) was simultaneously introduced in the high-pressure homogenization process to promote the dispersion of crystal bundles and restrain the re-aggregation of dispersed nanorods. The dispersion degree and surface charge of PAL nanorods were greatly improved, and the colloidal viscosity of aqueous suspension of highly dispersed PAL rods greatly enhanced by 148% in contrast to raw PAL aggregates. Also, the colloidal stability and rheological properties of PAL were clearly improved after dispersion. As a whole, this process can produce PAL nanorods in an industrial scale, which opens a new avenue to extend the application of PAL in many industrial areas such as fine chemicals, functional carriers and nanocomposites. |
MOST Discipline Catalogue | 工学::材料科学与工程(可授工学、理学学位) |
DOI | 10.5185/amp.2018/6999 |
Language | 英语 |
Citation statistics | |
Document Type | 会议论文 |
Identifier | http://ir.licp.cn/handle/362003/24826 |
Collection | 环境材料与生态化学研究发展中心 |
Corresponding Author | Wang AQ (王爱勤) |
Affiliation | 1.Key Laboratory of Clay Mineral Applied Research of Gansu Province, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, P.R. China 2.R&D Center of Xuyi Palygorskite Applied Technology, Lanzhou Institute of Chemical Physics, Chinese Academy of Science, Lanzhou 730000, P.R. China |
Recommended Citation GB/T 7714 | Wang WB ,Wang FF ,Kang YR ,et al. Nanoscale dispersion of palygorskite bundles by a facile mechanical/chemical approach[C]//International Association of Advanced Materials (IAAM). Sweden:VBRI Press,2018:447-453. |
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