Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Ceramic slurry and preparation method and application thereof
The invention provides ceramic slurry and a preparation method and application thereof. The preparation method of the ceramic slurry comprises the following steps of S1, mixing ceramic powder and a first dispersing agent in a first solvent, and reacting to obtain modified ceramic powder, and S2, mixing the modified ceramic powder with auxiliary materials to obtain ceramic slurry. The modified ceramic powder or ceramic slurry is subjected to secondary modification through a second dispersing agent. The hydrophilic end of the first dispersing agent reacts with the surface group of the ceramic powder and is grafted to the surface of the ceramic powder, so that the surface property of the ceramic powder is changed, and the viscosity of the formed ceramic slurry is reduced. The inventor accidentally finds that even if the dispersing agent and the dispersing time are excessive, what cannot be ensured is that all the surfaces of the ceramic powder are coated with the dispersing agent. Therefore, the modified ceramic powder or the formed ceramic slurry is subjected to secondary modification, the surface of the modified ceramic powder or the formed ceramic slurry is further grafted with thesecond dispersing agent, the ceramic powder is fully coated, and the viscosity of the ceramic slurry is more effectively reduced.
本发明提供陶瓷浆料及其制备方法和应用。该陶瓷浆料的制备方法包括以下步骤：S1：将陶瓷粉体和第一分散剂置于第一溶剂中混合，反应得到改性陶瓷粉体；S2：将改性陶瓷粉体与辅料混合，得到陶瓷浆料；其中，改性陶瓷粉体或陶瓷浆料经第二分散剂进行二次改性。第一分散剂的亲水端与陶瓷粉体的表面基团反应，接枝到陶瓷粉体表面，改变了陶瓷粉体的表面性质，从而使形成的陶瓷浆料的粘度下降。发明人意外地发现，即便分散剂和分散时间过量仍然无法确保所有的陶瓷粉体表面都包覆上分散剂。因此，对改性后的陶瓷粉体或形成的陶瓷浆料进行二次改性，使其表面进一步接枝第二分散剂，充分包覆陶瓷粉体，更有效地降低陶瓷浆料的粘度。
Ceramic slurry and preparation method and application thereof
The invention provides ceramic slurry and a preparation method and application thereof. The preparation method of the ceramic slurry comprises the following steps of S1, mixing ceramic powder and a first dispersing agent in a first solvent, and reacting to obtain modified ceramic powder, and S2, mixing the modified ceramic powder with auxiliary materials to obtain ceramic slurry. The modified ceramic powder or ceramic slurry is subjected to secondary modification through a second dispersing agent. The hydrophilic end of the first dispersing agent reacts with the surface group of the ceramic powder and is grafted to the surface of the ceramic powder, so that the surface property of the ceramic powder is changed, and the viscosity of the formed ceramic slurry is reduced. The inventor accidentally finds that even if the dispersing agent and the dispersing time are excessive, what cannot be ensured is that all the surfaces of the ceramic powder are coated with the dispersing agent. Therefore, the modified ceramic powder or the formed ceramic slurry is subjected to secondary modification, the surface of the modified ceramic powder or the formed ceramic slurry is further grafted with thesecond dispersing agent, the ceramic powder is fully coated, and the viscosity of the ceramic slurry is more effectively reduced.
本发明提供陶瓷浆料及其制备方法和应用。该陶瓷浆料的制备方法包括以下步骤：S1：将陶瓷粉体和第一分散剂置于第一溶剂中混合，反应得到改性陶瓷粉体；S2：将改性陶瓷粉体与辅料混合，得到陶瓷浆料；其中，改性陶瓷粉体或陶瓷浆料经第二分散剂进行二次改性。第一分散剂的亲水端与陶瓷粉体的表面基团反应，接枝到陶瓷粉体表面，改变了陶瓷粉体的表面性质，从而使形成的陶瓷浆料的粘度下降。发明人意外地发现，即便分散剂和分散时间过量仍然无法确保所有的陶瓷粉体表面都包覆上分散剂。因此，对改性后的陶瓷粉体或形成的陶瓷浆料进行二次改性，使其表面进一步接枝第二分散剂，充分包覆陶瓷粉体，更有效地降低陶瓷浆料的粘度。
Ceramic slurry and preparation method and application thereof
陶瓷浆料及其制备方法和应用
BAI JIAMING (Autor:in) / SUN JINXING (Autor:in)
12.03.2021
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
/
B33Y
ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
,
Additive (generative) Fertigung, d. h. die Herstellung von dreidimensionalen [3D] Bauteilen durch additive Abscheidung, additive Agglomeration oder additive Schichtung, z. B. durch 3D- Drucken, Stereolithografie oder selektives Lasersintern
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