Effect of dispersant and binder on the morphology of zirconia granules during spray drying

被引:3
作者
Luo, Fei [1 ,2 ]
Wen, Jin [2 ]
Tian, Xiuying [2 ]
Zhu, Ling [2 ]
Li, Chunyan [2 ]
Cao, Jianhui [3 ]
He, Zhiyuan [4 ]
Li, Yimin [1 ]
Luo, Fenghua [1 ]
机构
[1] Cent South Univ, State Key Lab Powder Met, Changsha 410083, Peoples R China
[2] Hunan Univ Humanities Sci & Technol, Hunan Prov Modern Ind Sch Adv Ceram, Hunan Prov Key Lab Fine Ceram & Powder Mat, Loudi 417000, Peoples R China
[3] Hunan Prov Xinhua Cty Xinxing Electron Ceram Co Lt, Xinhua 417000, Hunan, Peoples R China
[4] Xinhua Shunda Elect Ceram Co Ltd, Xinhua 417000, Hunan, Peoples R China
关键词
Spray drying; Morphology; Viscosity; Settling speed; Organic additives; DRIED PARTICLES; OXIDE; POWDERS;
D O I
10.1016/j.powtec.2024.119530
中图分类号
TQ [化学工业];
学科分类号
0817 ;
摘要
Polyacrylic acid (PAA) was utilized as a dispersant, while either copolymer of polyacrylic acid or polyvinyl alcohol (PVA) served as a binder for the preparation of zirconia granules using spray drying technology. Dense spherical granules were successfully obtained by employing 0.5 wt% Dispersant 1000 and 2 wt% PVA. Meanwhile, porous spherical granules were achieved when utilizing 1.5 wt% Dispersant 1,250,000 and 1 wt% PVA. Higher molecular weight dispersant necessitates larger mass for optimal addition. Compared to polyacrylic acid copolymer, PVA significantly improves the slurry viscosity and reduces the settling speed. A hypothesis is proposed that a three-dimensional network is formed by hydrogen bonding between PAA and PVA in the slurry, wherein zirconia particles and organic additives are uniformly immobilized, thereby facilitating the formation of spherical granules. By adjusting the molecular weight of PAA, enabling manipulation of dried granules morphology to achieve either dense or porous spherical granules.
引用
收藏
页数:10
相关论文
共 54 条
[1]   Unraveling Particle Formation: From Single Droplet Drying to Spray Drying and Electrospraying [J].
Boel, Eline ;
Koekoekx, Robin ;
Dedroog, Sien ;
Babkin, Iurii ;
Vetrano, Maria Rosaria ;
Clasen, Christian ;
Van den Mooter, Guy .
PHARMACEUTICS, 2020, 12 (07) :1-58
[2]   Mechanical characteristics, structure, and phase stability of tetragonal crystals of ZrO2-Y2O3 solid solutions doped with cerium and neodymium oxides [J].
Borik, M. A. ;
Kulebyakin, A., V ;
Myzina, V. A. ;
Lomonova, E. E. ;
Milovich, F. O. ;
Ryabochkina, P. A. ;
Sidorova, N., V ;
Shulga, N. Y. ;
Tabachkova, N. Y. .
JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS, 2021, 150
[3]   From powders to sintered pieces: forming, transformations and sintering of nanostructured ceramic oxides [J].
Bowen, P ;
Carry, C .
POWDER TECHNOLOGY, 2002, 128 (2-3) :248-255
[4]   Simulation of the Spray Drying of Single Granules: The Correlation Between Microscopic Forces and Granule Morphology [J].
Breinlinger, Thomas ;
Hashibon, Adham ;
Kraft, Torsten .
JOURNAL OF THE AMERICAN CERAMIC SOCIETY, 2015, 98 (06) :1778-1786
[5]   Preparation of ZrO2 microspheres by spray granulation [J].
Chen, Jun ;
Yang, Hao ;
Xu, Chang-Ming ;
Cheng, Ji-Gui ;
Lu, Ying-Wei .
POWDER TECHNOLOGY, 2021, 385 :234-241
[6]   Sintering of fine oxide powders .2. Sintering mechanisms [J].
Chen, PL ;
Chen, IW .
JOURNAL OF THE AMERICAN CERAMIC SOCIETY, 1997, 80 (03) :637-645
[7]   Effect of calcination temperature and composition on the spray-dried microencapsulated nanostructured SAPO-34 with kaolin for methanol conversion to ethylene and propylene in fluidized bed reactor [J].
Ebrahimi, Alireza ;
Haghighi, Mohammad ;
Aghamohammadi, Sogand .
MICROPOROUS AND MESOPOROUS MATERIALS, 2020, 297 (297)
[8]   Partial flocculation for spray drying of spherical mixed metal oxide particles [J].
Ehrhart, Brian D. ;
Ward, Barbara J. ;
Richardson, Benjamin M. ;
Anseth, Kristi S. ;
Weimer, Alan W. .
JOURNAL OF THE AMERICAN CERAMIC SOCIETY, 2018, 101 (10) :4452-4457
[9]   Effect of freeze drying, spray drying and electrospraying on the morphological, thermal, and structural properties of powders containing phage Felix O1 and activity of phage Felix O1 during storage [J].
Ergin, Firuze .
POWDER TECHNOLOGY, 2022, 404
[10]   Microencapsulation of curcumin by spray drying and freeze drying [J].
Guo, Jiayue ;
Li, Peilong ;
Kong, Lingyan ;
Xu, Baojun .
LWT-FOOD SCIENCE AND TECHNOLOGY, 2020, 132 (132)