硅酸盐通报2024，Vol.43Issue(10)：3787-3797,11.
HA-Al2O3复相陶瓷浆料的调制及其高精度光固化性能
Modulation of HA-Al2O3 Composite Ceramic Paste and Its High Precision Curing Performance
摘要
Abstract
High-strength alumina(Al2O3)was utilized as a reinforcing phase to improve the strength of hydroxyapatite(HA),a bioactive material,but the HA-Al2O3 ceramics prepared by traditional hydrothermal method could not achieve the precise control of pore size and porosity,whereas the light curing additive manufacturing technology could achieve the high precision molding of HA-Al2O3 ceramics through the high-performance photocurable slurry.The state of HA-Al2O3 slurry is adjusted by the addition of dispersant,photoinitiator,and photoabsorbent to alleviate the severe scattering effect caused by the refractive index mismatch between HA powder,Al2O3 powder,and photosensitive resin.In this study,the effects of the type and content of photoinitiator and dispersant on the slurry were explored.The rheological and curing properties of the slurry are first improved and then weakened with the addition of both,and the optimal dosages of photoinitiator and dispersant are 0.5％and 4％(mass fraction),respectively.The effects of two light absorbers,graphite and methyl yellow,on improving the printing accuracy were compared.Although graphite improves the printing accuracy and rheology of the slurry,it reduces the printing quality,so the dosage of 5.0 × 10-5 methyl yellow is determined,and finally HA-Al2O3 slurries suitable for high precision printing are obtained.关键词
陶瓷/HA-Al2O3/精度调控/固化深度/流变性/浆料调控Key words
ceramics/HA-Al2O3/precision control/curing depth/rheology/slurry control分类
化学化工引用本文复制引用
刘秋玉,黎志伟,王澳,王志浩,王宇蓝,陈斐..HA-Al2O3复相陶瓷浆料的调制及其高精度光固化性能[J].硅酸盐通报,2024,43(10):3787-3797,11.基金项目
国家自然科学基金(51972246,51521001) （51972246,51521001）
湖北省国际合作项目(2022EHB037) （2022EHB037）
济南市"新高校20条"资助项目(202333030) （202333030）
