The Electrochemical Study on Pulverization nanoparticle for Advanced Materials

• Main Authors: Chang, Shuao Pau, 張曉波
• Other Authors: U.H.-Lee
• Format: Others
• Language: zh-TW
• Published: 1998
• Online Access: http://ndltd.ncl.edu.tw/handle/08598818279821581221

碩士 === 國立臺灣大學 === 材料科學與工程學研究所 === 86 === Using the physical method to simplify montmorillonite can separate the differe nt crystalline minerals ; but can't to leave the ionic impurity . The reserach adopts the electrochemical way to simplify montmorillonite further . When the potential equals to -0.8V , that Ti4+will be reducted from the site of the oc tahedral bonding . Using the Rietveld method to analyse the crystal of montmor illonite , and discovering that the distorted bonding will restore comply with removing the titanium . Judging the suitabi Montmorillonite is the littles t particle in the clay minerals , its size always be small than 3um , which i s called nanoparticle . It is very important to control the particle's dispers ing and condensing in a aqueous . The study is to find the precipitate quantit y of surfactant PVA , correlated to the rest potential and its particle size d istribution . It wants to use the potential to control the particle size . It discovers that using PVA/Mont.=12wt% in 0.5wt% montmorillonite solution , wil l makes mo In the other way , finging sericite's particle size , simultaneo usly.