流变性能对陶瓷浆料稳定性影响的比较研究

摘要/Abstract

摘要： 在陶瓷生产中,浆料的稳定性对产品质量和生产效率至关重要。本研究深入探讨了流变性能对陶瓷浆料悬浮稳定性的影响,分析了不同稳定剂(聚乙二醇、聚氧化乙烯、聚乙烯醇和瓜尔胶)对陶瓷浆料流变性能的影响,并比较研究了剪切黏度和弹性对稳定性的独立影响。结果表明,掺入不同稳定剂的陶瓷浆料在颗粒粒径与体积分数相同条件下,虽然黏度相近,但悬浮稳定性存在显著差异。使用瓜尔胶作为稳定剂的浆料展现出最佳的稳定性。此外,储能模量G′、损耗模量G″及损耗因子tan δ是影响浆料稳定性的关键黏弹性参数。当陶瓷浆料弹性相同时,随着剪切黏度的增加,浆料的稳定性得到提升。研究结果强调了浆料弹性和黏性在悬浮颗粒中的重要性,并指出黏弹性参数和黏度对颗粒沉降行为有明显影响,为陶瓷浆料的稳定性研究和应用提供了新的视角。本研究为选择适当的稳定剂提高浆料稳定性和优化陶瓷浆料配方与生产工艺提供了有益的参考和建议。

关键词: 陶瓷浆料, 流变性能, 黏弹性, 黏度, 稳定性, 稳定剂

Abstract: In ceramic production, the stability of slurry plays a crucial role in ensuring high product quality and production efficiency. This study was conducted to investigate the effects of rheological properties on the suspension stability of ceramic slurry. The effects of various stabilizers, such as polyethylene glycol, polyoxyethylene oxide, polyvinyl alcohol, and guar gum, on the rheological properties of ceramic slurry were analyzed. Then, the independent effects of shear viscosity and elasticity on the stability were compared. The results show that there are significant differences in suspension stability of ceramic slurry with different stabilizers under the same particle size and volume fraction condition, although the viscosity is similar. Notably, the slurry that utilized guar gum as a stabilizer exhibits the best stability. Furthermore, the storage modulus G′, loss modulus G″, and loss factor tan δ are the key viscoelastic parameters that affect the stability of ceramic slurry. When the elasticity of ceramic slurry is same, the stability of slurry is improved with the increase of shear viscosity. The results emphasize the importance of elasticity and viscosity of slurry in suspended particles. The study highlights that viscoelastic parameters and viscosity have noticeable effects on particle settlement behavior, offering a fresh perspective for stability research and application of ceramic slurry. The research provides valuable references and suggestions for selecting appropriate stabilizers to enhance the stability of ceramic slurry and optimize the formulation and production process.

Key words: ceramic slurry, rheological property, viscoelastic, viscosity, stability, stabilizer

中图分类号:

TQ174

鲍志蕾, 于欢, 江超. 流变性能对陶瓷浆料稳定性影响的比较研究[J]. 硅酸盐通报, 2024, 43(12): 4553-4562.

BAO Zhilei, YU Huan, JIANG Chao. Comparative Study on Effect of Rheological Properties on Stability of Ceramic Slurry[J]. BULLETIN OF THE CHINESE CERAMIC SOCIETY, 2024, 43(12): 4553-4562.

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