磷酸锆碟片粒径对提高二氧化钛悬浮液分散稳定性的影响

发布时间：2018-03-13 06:57

  本文选题：纳米悬浮液　切入点：磷酸锆碟片　出处：《功能材料》2017年05期 　论文类型：期刊论文

【摘要】：制备纳米二氧化钛(TiO_2)分别和729.6,1 004.5,1 168.5nm 3种粒径的磷酸锆碟片(ZrP)混合纳米悬浮液,研究了混合悬浮液的分散稳定性。运用稳定性性分析仪,沉降实验和紫外-可见分光光度计综合分析了纳米悬浮液的分散稳定性,并测量了混合悬浮液的粘度。结果表明,加入ZrP碟片后,TiO_2悬浮液的粘度增大,稳定性提高;3种混合纳米悬浮液的粘度相近,但ZrP粒径最小的混合悬浮液,其分散稳定性最好。通过分析发现,3种混合纳米悬浮液中,ZrP粒径越小,颗粒团聚粒径和团聚速度越小,其原因可能是ZrP碟片的粒径越小,相同质量浓度条件下碟片数目浓度越大,对TiO_2的空间位阻作用越强。
[Abstract]:Nano-titania TiO-2) and 729.6n 1 004.5N 1 168.5 nm nano-sized Zirconium Phosphate (Zirconium Phosphate) suspension were prepared, and the dispersion stability of the mixed suspensions was studied by using a stability analyzer. The dispersion stability of nano-suspension was analyzed by sedimentation experiment and UV-Vis spectrophotometer, and the viscosity of mixed suspension was measured. The results showed that the viscosity of TiO2 suspension increased with the addition of ZrP disc. The stability of the three kinds of mixed nano-suspensions is similar to that of the three kinds of mixed nano-suspensions, but the dispersion stability of the mixed suspensions with the smallest ZrP particle size is the best. It is found that the smaller the particle size of ZrP in the three kinds of mixed nano-suspensions is, The smaller the agglomeration size and agglomeration rate, the smaller the particle size of ZrP disc, and the greater the number and concentration of disc at the same mass concentration, the stronger the steric resistance to TiO_2.
【作者单位】： 广东工业大学材料与能源学院广东省功能软凝聚态物质重点实验室;
【基金】：国家自然科学基金资助项目(51576050) 广东省科技计划公益研究与能力建设专项资助项目(2015A010106013)
【分类号】：O648.22;TB383.1
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本文编号：1605271