| Summary: | 碩士 === 國立高雄應用科技大學 === 化學工程與材料工程系博碩士班 === 102 === Metal salts of stearic acid have been used in various types of plastic and coating materials as lubricants over the years. It also can be used as heat stabilizer in plastics or caulk lubricant in wood primer. The usage amount
and range of metal salts of stearic acid in wood primer are quite large and wide. Besides, it can be blended with conductive polymer of polyaniline as plasticizers owing to polyaniline’s excellent chemical and environmental stability, easiness of synthesis, low cost advantages. However, it exhibits poor processibility which have obstructed its commercial application. In this study, polyaniline was synthesized with zinc stearate as surfactants and as plasticizer in blending with pp. Zinc stearate is well-dispersed in polyaniline matrix to avoid agglomeration, from transmission electron microscopy (TEM) and scanning electron microscope (SEM) images. The crystalline structure of the polyaniline was determined by X-ray diffraction patterns (XRD) and TGA measurement was used to check the weight loss of polyaniline at high temperature. On the other hand, when blending with polypropylene, via brabender mixer without adding any plasticizer . The rheology and morphology of polyblend were characterized by DSC, SEM and UV-Vis spectra. Furthermore, the effect of processing conditions on conductivity was studied. Finally, a conducting polyblend with surface resistance (2.46×10^4 Ω) was obtained.
|
|---|
