机械力活化固相化学反应法制备纳米Sb_2O_3阻燃剂

Preparation of Nanosized Sb_2O_3 by Mechanically Activated Solid State Chemical Reaction

为了制备粒径较小的纳米Sb2O3,以酒石酸锑钾和氢氧化钠为原料,以超级行星式球磨机为研磨设备,通过机械力活化固相化学反应法制备纳米Sb2O3。通过XRD、TEM等研究了表面活性剂TX-10用量及球磨时间对产品粒径的影响;分析了机械力活化固相化学反应的机理。结果表明:反应物颗粒越细,制备的Sb2O3粒径越小;机械力活化固相化学反应法制备的纳米Sb2 O3为立方晶型,平均粒径为60 nm;扩散是固相化学反应的重要阶段。

Nanosized Sb2O3 was prepared by mechanically activated solid state chemical reaction using potassium antimony tartrate and NaOH as raw material and super planet ball mill as grinding equipment.The effects of amount of surfactant TX-10 and grinding time on the particle size of Sb2O3 were discussed in detail by XRD and TEM.The results show that the particle size of Sb2O3 declines with the decreasing of the particle size of reactants.The crystalline form of nanosized Sb2O3 is cubic with an average particle size of 60 nm.Diffusing is an important stage of solid state chemical reaction.