激光粒度仪测定近纳米氢氧化铝粒径的研究

Measurement of particle size of near-nano Al(OH)_3 with laser particle size analyzer

以六偏磷酸钠和十二烷基苯磺酸钠为分散剂,利用激光粒度仪对自制近纳米氢氧化铝进行粒径分析。考察了分散体系、氢氧化铝溶液浓度、超声分散时间等因素对近纳米氢氧化铝粒径测定的影响,并与电镜所测的近纳米氢氧化铝粒径作比较,确定了近纳米氢氧化铝粒径的最佳测定条件。

The particle size of near-nano Al （OH）3 is measured by laser particle size analyser, using sodium hexametaphosphate （ Na （ PO4 ）6 ） and Sodium dodecylbenzene sulfonate （ C18 H29 NaO3S） as the dispersants. The influence of type of dispersants, ultrasonic dispersing time and concentration of dispertants on measurement of near-nano Al（ OH）3 particle size are examined. The optimum determination conditions are also determined.