Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Method for preparing gadolinium oxysulfide ceramic hollow microspheres
The invention discloses a method for preparing gadolinium oxysulfide ceramic hollow microspheres, which comprises the following steps: adding additives into a water solvent, uniformly mixing to prepare a premixed solution, and the additives comprise a dispersing agent, a monomer, a cross-linking agent, a green body reinforcing agent, a closed pore forming agent and a sintering aid; carrying out ball milling on Gd2O2S ceramic powder and the premixed liquid to prepare Gd2O2S slurry with the solid content of 75-85%, adding an initiator and a catalyst, and uniformly mixing for later use; a semi-arc-shaped super-hydrophobic track coated with a super-hydrophobic film is manufactured, the track is arranged on an inclined rack, and a heating belt is attached to the lower portion of the inclined plane of the track; a dispensing machine needle head is selected to enable a titration needle cylinder to be located at the position 18-15 cm above the track, Gd2O2S ceramic slurry is injected into the titration needle cylinder, the inclined plane is controlled to be heated to 150-210 DEG C, the size of liquid drops is controlled to be 0.18-1 mm through the air inlet pressure of compressed air and the size of a needle hole, the liquid drops drop on the metal track coated with the super-hydrophobic film from the top end of the inclined plane, and the Gd2O2S ceramic slurry is obtained. The Gd2O2S microspheres roll downwards and are heated and cured into Gd2O2S microsphere blanks; and drying and degreasing the formed Gd2O2S ball blank, and sintering to obtain the Gd2O2S ceramic hollow microsphere.
本发明公开一种制备硫氧化钆陶瓷空心微球的方法，在水溶剂中加入添加剂混合均匀制备预混液，添加剂包括分散剂、单体、交联剂、坯体增强剂、闭孔造孔剂、烧结助剂；将Gd2O2S陶瓷粉末与预混液球磨制备出固含量为75~85%的Gd2O2S浆料，再加入引发剂和催化剂混合均匀后待用；制作涂覆有超疏水薄膜的半圆弧形超疏水轨道，将轨道置于倾斜台架上，轨道斜面下方用加热带贴附；选用点胶机针头使滴定针筒位于轨道上方18~15cm处，将Gd2O2S陶瓷浆料注入到滴定针筒内，控制斜面加热至150~210℃，通过压缩空气的进气压力和针孔尺寸控制液滴尺寸为0.18~1mm，液滴由斜面顶端滴落于施涂了超疏水薄膜的金属轨道上，向下滚动并被加热固化成Gd2O2S微球球坯；将成型后的Gd2O2S球坯经干燥脱脂后，烧结制得Gd2O2S陶瓷空心微球。
Method for preparing gadolinium oxysulfide ceramic hollow microspheres
The invention discloses a method for preparing gadolinium oxysulfide ceramic hollow microspheres, which comprises the following steps: adding additives into a water solvent, uniformly mixing to prepare a premixed solution, and the additives comprise a dispersing agent, a monomer, a cross-linking agent, a green body reinforcing agent, a closed pore forming agent and a sintering aid; carrying out ball milling on Gd2O2S ceramic powder and the premixed liquid to prepare Gd2O2S slurry with the solid content of 75-85%, adding an initiator and a catalyst, and uniformly mixing for later use; a semi-arc-shaped super-hydrophobic track coated with a super-hydrophobic film is manufactured, the track is arranged on an inclined rack, and a heating belt is attached to the lower portion of the inclined plane of the track; a dispensing machine needle head is selected to enable a titration needle cylinder to be located at the position 18-15 cm above the track, Gd2O2S ceramic slurry is injected into the titration needle cylinder, the inclined plane is controlled to be heated to 150-210 DEG C, the size of liquid drops is controlled to be 0.18-1 mm through the air inlet pressure of compressed air and the size of a needle hole, the liquid drops drop on the metal track coated with the super-hydrophobic film from the top end of the inclined plane, and the Gd2O2S ceramic slurry is obtained. The Gd2O2S microspheres roll downwards and are heated and cured into Gd2O2S microsphere blanks; and drying and degreasing the formed Gd2O2S ball blank, and sintering to obtain the Gd2O2S ceramic hollow microsphere.
本发明公开一种制备硫氧化钆陶瓷空心微球的方法，在水溶剂中加入添加剂混合均匀制备预混液，添加剂包括分散剂、单体、交联剂、坯体增强剂、闭孔造孔剂、烧结助剂；将Gd2O2S陶瓷粉末与预混液球磨制备出固含量为75~85%的Gd2O2S浆料，再加入引发剂和催化剂混合均匀后待用；制作涂覆有超疏水薄膜的半圆弧形超疏水轨道，将轨道置于倾斜台架上，轨道斜面下方用加热带贴附；选用点胶机针头使滴定针筒位于轨道上方18~15cm处，将Gd2O2S陶瓷浆料注入到滴定针筒内，控制斜面加热至150~210℃，通过压缩空气的进气压力和针孔尺寸控制液滴尺寸为0.18~1mm，液滴由斜面顶端滴落于施涂了超疏水薄膜的金属轨道上，向下滚动并被加热固化成Gd2O2S微球球坯；将成型后的Gd2O2S球坯经干燥脱脂后，烧结制得Gd2O2S陶瓷空心微球。
Method for preparing gadolinium oxysulfide ceramic hollow microspheres
一种制备硫氧化钆陶瓷空心微球的方法
YANG SHUO (Autor:in) / WANG SHUAICHAO (Autor:in) / XIE SHUFENG (Autor:in) / LIU HANQIANG (Autor:in) / WANG YAHUI (Autor:in) / GUO YOU (Autor:in) / SU YAO (Autor:in)
22.07.2022
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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