Study of Crystallization Behavior and Physical Properties of PBS/MWNT & PBS/PLA Composites

• Main Authors: Bo-Jiue Kao, 高伯爵
• Other Authors: 程耀毅
• Format: Others
• Language: zh-TW
• Published: 2010
• Online Access: http://ndltd.ncl.edu.tw/handle/w85ffd

碩士 === 國立臺北科技大學 === 有機高分子研究所 === 98 === In this study, organic environmental polymer biodegradable Poly(butylene succinate) (PBS)/ multi-walled carbon nanotubes (MWNTs) nanocomposite and (PBS)/ Poly (lactic acid) (PLA) composite were prepared by melt compounding. Nonisothermal crystallization and subsequent melting behavior, isothermal crystallization kinetics, spherulitic morphology, and crystal structure of neat PBS and its nanocomposite were studied by differential scanning calorimetry (DSC), scanning electron microscopy(SEM), polarizing optical microscope(POM) and wide angle X-ray diffraction. The presence of MWNTs has a significant heterogeneous nucleation effect on the crystallization and morphology of PBS, and therefore the crystallization rate is enhanced during both nonisothermal and isothermal crystallization in the nanocomposite. Moreover, the crystal structure of PBS is not affected by MWNTs. Thermal gravimetric (TGA) result shows that the residue and weight loss temperature are improved with the increase of MWNTs and PLA