Analysis of Particle Motion of Suspensions with Inorganic Particles.
|關鍵字:||薄膜;無機粒子;懸濁液;粒子沉積;電漿改質;親水性官能基;Thin film;Inorganic particle;Suspension;Particle aggregation;Plasma treatment;Hydrophilic functional group|
Recently, using functional polymer thin film has become a new trend of technical development. The performance of a display can be improved not only from its mechanical structure but from its raw material. The “Self-Assembly” behavior can change the material properties, such as thermal endurance and conductivity, when nanoparticle-hybrid polymer solution is made. However, the studies on the procedure of nanoparticle-hybrid polymer solution is yet been done. This study investigated the dispersion and aggregation behavior of inorganic nanoparticle is hybrid with polymer solution with designated hybrid ratio. The attraction for nanoparticle caused by the hydrophilic functional group, which is adhered on the substrate, is also investigated. In addition, the relation of nanoparticle-hybrid polymer thin film between solidified-film and yet-solidified film is founded simultaneously. The hybrid polymer solution with different recipes is coated uniformly on the substrate by the coating rod and the films are solidified by the oven. Film thickness detection and nanoparticle distribution are detected by the thickness gauge and SEM (Scanning Electron Microscope) respectively. The distribution data will be quantified by an image collection software. The result shows that the hydrophilic functional group does have influence on attracting nanoparticles and causes aggregation phenomena, the variation of adhesion force on the substrate results in the slip of velocity and changes the shear rate of the hybrid polymer solution. Overall, the tendency of variation caused by functional group attractive fore can be observed, and the thickness model of polymer thin film can be determined by an experimental equation. The results of this study offers references for further research of the functional mechanisms of nanoparticle-hybrid polymer thin film procedure.