Mechanical and thermal properties of epoxidized soybean oil plasticized polybutylene succinate blends

作者：Zhao Yongqing; Qu Jinping^*; Feng Yanhong; Wu Zhenghuan; Chen Fuquan; Tang Hailong

来源：Polymers for Advanced Technologies, 2012, 23(3): 632-638.

DOI：10.1002/pat.1937

• polybutylene succinate
• plasticization
• epoxidized soybean oil
• blending
• properties

Epoxidized soybean oil (ESO) was blended as a novel plasticizer with polybutylene succinate (PBS) in a twin-screw extruder. The effects of ESO on the mechanical and thermal properties of the PBS/ESO blends were investigated by means of tensile test, differential scanning calorimetry (DSC), dynamic mechanical analysis (DMA), and scanning electronic microscope. ESO improved elongation at break for PBS, which increased and then decreased with the increase in ESO. Elongation at break reached a maximum of 15 times than that for pure PBS when the ESO loading was 5wt%. The tensile strength and modulus for the blends were lower than those for pure PBS. Compared with pure PBS, the blends exhibited lower glass transition temperature, crystallization temperature, and melting temperature. The storage modulus and tan delta peaks for the blends were lower compared with that for pure PBS. ESO had very limited compatibility with PBS, and phase separation was observed when more ESO was added.

• 出版日期2012-3
• 单位华南理工大学