作　　者： ; ; ; ; ;

机构地区： 仲恺农业工程学院化学化工学院

出　　处： 《精细化工》 2011年第8期729-732,共4页

摘　　要： 将纳米锑掺杂氧化锡(antimony doped tin oxide,ATO)分散于乙醇与水的混合改性介质中,利用硅烷偶联剂KH-570与纳米ATO表面羟基的脱水反应以及硅烷偶联剂间的缩合反应,制得了KH-570包覆的纳米ATO粉体。用FTIR、XPS、TG、TEM对纳米ATO粉体的表面结构进行了表征,并通过亲油性的测试,考察了其分散稳定性。结果表明,在ATO纳米粒子表面接枝上了7.36%～7.73%(质量分数)的KH-570,改性后的纳米ATO粒子的亲油性及分散性得到大幅度提高,改性ATO在正丁醇中能够稳定分散100 h以上。 KH-570 coated nano-sized antimony doped tin oxide（ATO） particles were obtained by dehydration reaction of ATO functionalized with silicon coupling agent KH-570 and condensation reaction of silicon coupling agent in the mixed media of ethanol and deionized water.The surface structure and the property of the obtained nano-sized ATO particles were characterized by means of a series of tests such as FTIR,XPS,TG,TEM.The grafting ratio of KH-570 and the surface modifying mechanism of ATO with KH-570 were further discussed here.The results reveal that about 7.36%～7.73% of KH-570 had been successfully grafted onto the surface of ATO.The lipophilicity and the dispersibility of the modified nano-sized ATO particles were significantly improved：these particles could be dispersed stably in n-butanol for more than 100 h.

关 键 词： 纳米锑掺杂氧化锡 硅烷偶联剂 接枝 表面改性 亲油性 分散性 功能材料

领　　域： [化学工程]