NIU Rui-xue, LUO Fa-liang, LIU Yi, HE Ben-qiao, ZHENG Liu-chun. Preparation and Thermal Stability of High Heat-resistant Poly(butylene succinate)[J]. Polymer Bulletin, 2023,36(3):338-345.
NIU Rui-xue, LUO Fa-liang, LIU Yi, HE Ben-qiao, ZHENG Liu-chun. Preparation and Thermal Stability of High Heat-resistant Poly(butylene succinate)[J]. Polymer Bulletin, 2023,36(3):338-345. DOI: 10.14028/j.cnki.1003-3726.2023.03.007.
Because of the excellent comprehensive properties of bio-based poly(butylene succinate) (PBS)
it is widely used in food packaging and tableware. However
due to its poor thermal stability
it tends to thermally degrade during processing and use. Therefore
it is necessary to add auxiliaries to improve the thermal stability of PBS. The effects of different auxiliaries on the thermal stability of PBS were evaluated by differential scanning calorimeter calorimetry (DSC)
thermogravimetric analysis (TGA)
tensile properties
melt flow rate and heat deformation temperature. The results showed that the addition of different auxiliaries could improve the thermal stability of PBS
and the initial decomposition temperature of PBS increased by 3.2 ℃ to 15.2 ℃; On the other hand
compared with the compound auxiliaries
one single additive significantly reduced the melt flow rate of PBS. The melt flow rate decreased to 3.41 g/10 min that decreased by 58.9%
and the tensile strength
heat deformation temperature and elongation at break of PBS increased to 39.1 MPa
90.2 ℃ and 360% that represent 15.0%
12.5% and 48.4% increase. The modified PBS has excellent rigidity