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一种新型耐温表面活性剂在球形Al₂O₃纳米粉制备中的应用研究

A Novel Heat-resisting Surfactant for Synthesis of Spherical Al₂O₃ Nanometer Powder

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【Author】 Chang Yufen 1,Ning Guiling 1,Lin Yuan 1, Liu Yihui 2,Liu Jing 2(1.School of Chemical Engineering;2.Laboratory of Comp rehensive Utilization of Carbanaceous,Dalian Unversity of Technology,Liaoning Dalinan,116012)

【机构】大连理工大学化工学院；辽宁大连碳资源综合利用实验室!116012；

【摘要】以硝酸铝为原料 ,探讨了具有三维结构耐温表面活性剂对水相沉淀法合成球形Al2 O3 纳米粉的颗粒分散性能 ,研究了该活性剂不同G值和用量对粉体粒径及分布的影响 ,并讨论了该表面活性剂的作用机理更多还原

【Abstract】 By using a three dimensional surfactant,dendrimer,as modifier,in the synthesis of alumina from Al(NO 3) 3 aqueous solution,spherical Al 2O 3 nanometer powder with mono-dispersion is obtained.The deffect of the G value and the amount of the surfactant on the particle size and distribution are investigated.A possible modification mechanism is proposed更多还原