Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Method for preparing porous zirconium carbide ceramic by adopting polymer precursor
The invention discloses a method for preparing porous zirconium carbide ceramic by adopting a polymer precursor. The method is implemented according to the following steps of: 1, preparing a slurry: dissolving a dispersing agent in a solvent which is a mixed solution or emulsion of water and an organic solvent to obtain a dispersing agent solution, and then adding a zirconium carbide precursor forball milling to prepare the slurry; 2, injecting the slurry into a model mold, and performing freezing to obtain a frozen green body; 3, performing low-temperature drying on the frozen green body toobtain a porous green body; and 4, carrying out high-temperature cracking reaction on the porous green body to obtain the porous zirconium carbide ceramic. The preparation method disclosed by the invention is simple in process and easy to operate, and the porous zirconium carbide ceramic is prepared by combining a high-temperature cracking technology and a freeze drying technology of the zirconium-containing polymer precursor. The preparation method has the characteristics of simple process, high aperture ratio, good gas permeability, high strength and the like in preparation of the porous zirconium carbide ceramic by a freeze drying method, and also has the advantages of a zirconium carbide ceramic polymer precursor.
本发明公开了一种采用聚合物前驱体制备多孔碳化锆陶瓷的方法，按照以下步骤实施：步骤1，配制浆料：将分散剂溶于溶剂中得到分散剂溶液，所述溶剂为水和有机溶剂的混合溶液或乳浊液，然后再加入碳化锆前驱体球磨制备浆料；步骤2，把浆料注入模型模具，冷冻得到冷冻素坯；步骤3，对冷冻素坯进行低温干燥得到多孔素坯；步骤4，将多孔素坯经过高温裂解反应得到多孔碳化锆陶瓷。本发明的制备方法过程简单、易操作，将含锆聚合物前驱体的高温裂解技术和冷冻干燥技术相结合制备出多孔碳化锆陶瓷。具备冷冻干燥法制备多孔碳化锆陶瓷的工艺简单、开孔率高、气体透过性好和强度高等特点，又兼顾了碳化锆陶瓷聚合物前驱体的优点。
Method for preparing porous zirconium carbide ceramic by adopting polymer precursor
The invention discloses a method for preparing porous zirconium carbide ceramic by adopting a polymer precursor. The method is implemented according to the following steps of: 1, preparing a slurry: dissolving a dispersing agent in a solvent which is a mixed solution or emulsion of water and an organic solvent to obtain a dispersing agent solution, and then adding a zirconium carbide precursor forball milling to prepare the slurry; 2, injecting the slurry into a model mold, and performing freezing to obtain a frozen green body; 3, performing low-temperature drying on the frozen green body toobtain a porous green body; and 4, carrying out high-temperature cracking reaction on the porous green body to obtain the porous zirconium carbide ceramic. The preparation method disclosed by the invention is simple in process and easy to operate, and the porous zirconium carbide ceramic is prepared by combining a high-temperature cracking technology and a freeze drying technology of the zirconium-containing polymer precursor. The preparation method has the characteristics of simple process, high aperture ratio, good gas permeability, high strength and the like in preparation of the porous zirconium carbide ceramic by a freeze drying method, and also has the advantages of a zirconium carbide ceramic polymer precursor.
本发明公开了一种采用聚合物前驱体制备多孔碳化锆陶瓷的方法，按照以下步骤实施：步骤1，配制浆料：将分散剂溶于溶剂中得到分散剂溶液，所述溶剂为水和有机溶剂的混合溶液或乳浊液，然后再加入碳化锆前驱体球磨制备浆料；步骤2，把浆料注入模型模具，冷冻得到冷冻素坯；步骤3，对冷冻素坯进行低温干燥得到多孔素坯；步骤4，将多孔素坯经过高温裂解反应得到多孔碳化锆陶瓷。本发明的制备方法过程简单、易操作，将含锆聚合物前驱体的高温裂解技术和冷冻干燥技术相结合制备出多孔碳化锆陶瓷。具备冷冻干燥法制备多孔碳化锆陶瓷的工艺简单、开孔率高、气体透过性好和强度高等特点，又兼顾了碳化锆陶瓷聚合物前驱体的优点。
Method for preparing porous zirconium carbide ceramic by adopting polymer precursor
一种采用聚合物前驱体制备多孔碳化锆陶瓷的方法
ZHAO KANG (Autor:in) / WANG KAI (Autor:in) / MENG QINGNAN (Autor:in) / TANG YUFEI (Autor:in) / HU HUATING (Autor:in) / XU ZHUOLI (Autor:in) / JIAO HUA (Autor:in) / LI FUPING (Autor:in)
15.12.2020
Patent
Elektronische Ressource
Chinesisch
Zirconium carbide ceramic precursor and preparation method thereof
| Europäisches Patentamt | 2020
Soluble zirconium carbide ceramic precursor and preparation method thereof
| Europäisches Patentamt | 2015
METHOD FOR PREPARING POROUS SILICON CARBIDE CERAMIC CARRIER
| Europäisches Patentamt | 2021
| Europäisches Patentamt | 2016