Miscibility, Mechanical and Thermal Properties of PLA/PTT/SEBS or SEBS-g-MA Blends

• Main Authors: Yo-Cheng Huang, 黃又成
• Other Authors: 程耀毅
• Format: Others
• Language: zh-TW
• Published: 2011
• Online Access: http://ndltd.ncl.edu.tw/handle/4a8r4g

碩士 === 國立臺北科技大學 === 有機高分子研究所 === 99 === In this study, blends of biodegradable polylactic acid (PLA) and polyethylene terephthalate (PTT) were prepared of different mixing ratio. The blends were added Poly(styrene – ethylene – butylene – styrene) (SEBS) or maleic anhydride-grafted Poly(styrene – ethylene – butylene – styrene) (SEBS-g-MA). The effects of the two toughening compatilizers on thermal properties of blends were compared, compatibility, crystallization, mechanical properties. Thermal gravimetric (TGA) was used to observed changes in the thermal properties. Differential scanning calorimetry (DSC) was used to examine glass transition temperature and miscibility. X-ray diffraction (XRD) was used to obtain the percent of crystallinity on melting crystallization. The universal testing machine was used to obtain mechanical properties.