在過去塗佈研究中多半是以高分子溶液進行研究，對含有微粒的懸浮液的塗佈技術研究甚少，目前在工業界中有愈來愈多含有微粒的懸浮液的塗佈產品，如背噴光擴散燈箱片(light diffusing backlit film)、抗炫膜(Anti-glare film)、鋰電池(Lithium battery)、燃料電池(fuel cell)和偏光膜等。本研究利用聚乙烯醇 (PVA)和甘油當作基本流體，該流體除了是水溶性、無毒，易於實驗進行的優點外，更重要的是它已經被廣泛的應用在工業材料上，同時本研究利用數種不同微粒如二氧化鈦加入聚乙烯醇和PMMA加入甘油，形成分散良好的懸浮液，並針對加入微粒後的流體所呈現的物性與塗佈行為進行研究。
由我們的實驗，可得知不論是二氧化鈦加入聚乙烯醇系統的狹縫式塗佈或是PMMA加入甘油系統的淋幕式塗佈，微粒的添加均有助於塗佈視窗變大，我們藉由添加不同的粒徑和不同的濃度的粉體當作變因，觀察出對於塗佈視窗有著不同的差異。改變酸鹼環境下，由於懸浮液系統吸附量的改變，也會對懸浮液的穩定性造成影響。
而上述研究的主題，對於將來運用在一些工業上的產品，均有參考價值，也是我們本次研究最主要的動機和目的。

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