Effects of Sodium Salts Organic Acids Modification on the Microstructure and Dispersion Behavior of Palygorskite Nano-Powder via High-Pressure Homogenization Process | |
Department | 环境材料与生态化学研究发展中心 |
Liu Y(刘毅)1; Xu JX(徐继香)2; Wang WB(王文波)1; Wang AQ(王爱勤)1; Wang AQ(王爱勤) | |
2014 | |
Source Publication | Journal of Dispersion Science and Technology |
ISSN | 0193-2691 |
Volume | 35Issue:6Pages:840-847 |
Abstract | High-pressure homogenization could disaggregate the crystal bundles of palygorskite and favor the adsorption of electrolyte ions onto its surface through the produced cavitation, shear, and turbulence forces, and has evident influences on the micromorphologies and properties of clay. In this work, a series of palygorskite samples modified with sodium citrate, sodium benzoate, sodium lactate, sodium acetate, and sodium propionate were obtained under the condition of high-pressure homogenization. The effects of type and concentration of sodium salts organic acids on the microstructure, morphology, surface charge, and physicochemical property of palygorskite were studied through x-ray diffraction (XRD), N2 adsorption–desorption isotherm, field emission scanning electron microscopy, zeta potential, rotational viscosity, and rheological measurements. XRD results confirmed that the crystal structure of homogenized palygorskite was not changed after introduction of sodium salts organic acids, but the aggregates were effectively disaggregated. Modification of palygorskite with sodium citrate made the surface more negatively charged, and the samples exhibited higher specific surface area and rheological properties. This work provided a method to improve the rheological properties of palygorskite suspension through dispersion of clay in sodium citrate solution followed by homogenization at 30 MPa. |
Keyword | Microstructure Palygorskite Rheological Properties Sodium Salts Organic Acids Zeta Potential |
Subject Area | 环境材料与生态化学 |
DOI | 10.1080/01932691.2013.818547 |
Funding Organization | “863” Project of the Ministry of Science and Technology, P. R. China (No. 2013AA031403);the Science and Technology Support Project of Jiangsu Provincial Science & Tecnhology Department (No. BY2011194;BE2012113) |
Indexed By | SCI |
If | 0.795 |
Language | 英语 |
Funding Project | 功能复合材料组 |
compositor | 第一作者单位 |
Citation statistics | |
Document Type | 期刊论文 |
Identifier | http://ir.licp.cn/handle/362003/6548 |
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.Chinese Acad Sci, Lanzhou Inst Chem Phys, Ctr Xuyi Palygorskite Appl Technol, Lanzhou 730000, Peoples R China 2.Shandong Silk Text Vocat Coll, Dept Dye Chem Engn, Zibo, Shandong, Peoples R China |
Recommended Citation GB/T 7714 | Liu Y,Xu JX,Wang WB,et al. Effects of Sodium Salts Organic Acids Modification on the Microstructure and Dispersion Behavior of Palygorskite Nano-Powder via High-Pressure Homogenization Process[J]. Journal of Dispersion Science and Technology,2014,35(6):840-847. |
APA | Liu Y,Xu JX,Wang WB,Wang AQ,&王爱勤.(2014).Effects of Sodium Salts Organic Acids Modification on the Microstructure and Dispersion Behavior of Palygorskite Nano-Powder via High-Pressure Homogenization Process.Journal of Dispersion Science and Technology,35(6),840-847. |
MLA | Liu Y,et al."Effects of Sodium Salts Organic Acids Modification on the Microstructure and Dispersion Behavior of Palygorskite Nano-Powder via High-Pressure Homogenization Process".Journal of Dispersion Science and Technology 35.6(2014):840-847. |
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