论文部分内容阅读
研究了不同分散条件,对碳化钛粉末在水介质中分散性的影响。利用物理法和化学法共同作用,通过激光粒度分析仪和场发射扫描电镜(FESEM)来表征碳化钛粒度及粒度分布情况,沉降实验和Zeta电位仪对碳化钛悬浮液的稳定性进行验证。实验结果表明:在pH为9.5和分散剂(聚乙烯吡咯烷酮(PVP)、α-甲基丙烯酸(MA)质量分数各为1%)的共同作用下,碳化钛的分散效果最好,表明静电稳定和空间稳定能够有效地改善碳化钛粉末在水基体系的分散性。
The effects of different dispersion conditions on the dispersibility of titanium carbide powder in aqueous media were investigated. The particle size and particle size distribution of titanium carbide were characterized by laser particle size analyzer and field emission scanning electron microscopy (FESEM). Physical and chemical methods were used to verify the stability of the titanium carbide suspension by sedimentation experiments and Zeta potentiometer. The experimental results show that under the combined action of pH 9.5 and dispersant (polyvinyl pyrrolidone (PVP), α-methacrylic acid (MA) mass fraction 1% each), the dispersion effect of titanium carbide is the best, And space stability can effectively improve the dispersion of titanium carbide powder in water-based system.