文章信息/Info

Title:

Research Progress on the Effect of Dispersants on the Dispersion of Stereolithography 3D Printing Ceramic Slurry

文章編號:

1674-3962(2025)10-0914-08

作者:

樊軍; 李喬磊; 岳新艷; 梁靜靜; 李金國

1.中國科學院金屬研究所 師昌緒先進材料創新中心，遼寧 沈陽 110016 2.東北大學材料科學與工程學院，遼寧 沈陽 110819

Author(s):

FAN Jun;  LI Qiaolei;  YUE Xinyan;  LIANG Jingjing;  LI Jinguo

1. Shi changxu Innovation Center for Advanced Materials,Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016, China 2. School of Materials Science and Engineering,Northeastern University,Shenyang 110819, China

關鍵詞:

增材制造; 陶瓷型芯; 漿料; 分散劑; 粘度; 穩定性

Keywords:

additive manufacture;  ceramic core;  slurry;  dispersant;  viscosity;  stability

分類號:

TQ174.6

DOI:

10.7502/j.issn.1674-3962.202311033

文獻標志碼:

A

摘要:

光固化3D打印陶瓷技術與傳統陶瓷成形工藝相比，具有成形精度高、生產周期短、成本低等優點，為復雜結構陶瓷型芯的制備提供了一種可靠的成形工藝。該工藝制備高性能陶瓷的關鍵在制備低粘度、高固含量、均勻穩定的陶瓷漿料，小尺寸陶瓷顆粒的加入在提高陶瓷構件性能的同時，帶來漿料分散性差、粘度大、固化性能差等問題。針對該問題，目前最有效的解決措施是在陶瓷漿料中添加分散劑，利用分散劑空間位阻和靜電排斥機制，改善氧化物陶瓷顆粒與油性光敏樹脂不相容的問題，增強陶瓷顆粒間排斥作用，減少陶瓷顆粒間的團聚從而實現低粘度、高固含量、均勻穩定陶瓷漿料的制備。總結了目前國內外利用分散劑改善光固化3D打印陶瓷漿料的研究進展，對陶瓷漿料的分散劑選用規則進行了概述，為制備均勻穩定的高固含量3D打印陶瓷漿料提供了理論基礎。

Abstract:

Compared with the traditional ceramic preparation technology, the stereolithography 3D printing technology has the advantages of high molding accuracy, short production cycle and low cost, which provides a reliable forming process for the preparation of complex structural ceramic components. The key to high-performance ceramic core via the stereolithography 3D printing lies in the prepare ceramic slurry with high solid loading, low viscosity and uniform stability. The addition of small size ceramic particles can improve the performance of ceramic components, but it also causes the poor dispersion, high viscosity and insufficient curing depth of the slurry. To solve these problems, the most effective method is to add dispersant in ceramic slurry, utilizing steric hindrance and electrostatic repulsion mechanism of dispersant, the incompatibility between oxide ceramic particles and oily photosensitive resin can be alleviated, the repulsion between ceramic particles can be increased, and the agglomeration between ceramic particles can be reduced, so as to realize the preparation of ceramic slurry with low viscosity, high solid loading and uniform stability. In this paper, the domestic and international research progress of using dispersant to improve the stereolithography 3D printing ceramic slurry status was summarized, and the selection rules of dispersants for preparation of ceramic slurry were summarized, which provided a theoretical basis for the preparation of uniform and stable 3D printing ceramic slurry with high solid loading.