Structure Control of Agglomerative Slurry of Mono-modal Particles by Spin Coating
Structure Control of Agglomerative Slurry of Mono-modal Particles by Spin Coating
复制标题
旋涂法控制单峰颗粒团聚浆料的结构
DOI：
10.1678/rheology.33.279
复制
发表时间：
2005
期刊：
影响因子：
--
通讯作者：
H. Usui
中科院分区：
文献类型：
--
作者：
Hiroshi Yoshiba;Y. Komoda;H. Imakoma;H. Usui
通过改变旋涂转速，控制了单峰球形粒子溶胶的结构。对在旋涂层中形成的簇的数目进行计数。颗粒（13 μm直径）的表观粘度测量溶胶，并通过Spanli悬浮模型预测团簇尺寸和团簇中包含的初级颗粒的数量，该模型假设当团簇在通过旋涂的简单剪切流下断裂成两部分时，发生颗粒间键合的多重断裂。结果表明，颗粒的最大堆积体积分数可以成功地用于浆料粘度的预测，间接说明本研究确定的最大堆积体积分数是合理的。实验数据与预测结果吻合较好。这意味着，在旋涂技术中，可以使用Mendi模型来预测颗粒的受控结构。
The structure of mono-modal spherical particle sols was controlled by changing the rotation rate of the spin coating. The number of cluster formed in the spin coated layer was counted. The apparent viscosity of particle (13 μm dia.) sols was measured, and the cluster size and number of primary particles contained in the cluster were predicted by the Usui's suspension model, which makes assumption that multi-breakup of inter-particle bonding occurs when a cluster breaks into two parts under a simple shear flow by spin coating. It was certified that the maximum packing volume fraction for particles can be successfully used to predict the slurry viscosity, and this means indirectly the maximum packing volume fraction determined in this study may be reasonable. Good agreement of the number of cluster between experimental data and the prediction was obtained. This means that the Usui's model can be used to predict the controlled structure of particles in spin coating technology.