PDF(Pubmed)
Abstract：
Poly(L-lactide)-b-poly(ethylene glycol)-b-poly(L-lactide) (PLLA-PEG-PLLA) shows promise for use in bioplastic applications due to its greater flexibility over PLLA. However, further research is needed to improve PLLA-PEG-PLLA\'s properties with appropriate fillers. This study employed zinc phenylphosphate (PPZn) as a multi-functional filler for PLLA-PEG-PLLA. The effects of PPZn addition on PLLA-PEG-PLLA characteristics, such as crystallization and thermal and mechanical properties, were investigated. There was good phase compatibility between the PPZn and PLLA-PEG-PLLA. The addition of PPZn improved PLLA-PEG-PLLA\'s crystallization properties, as evidenced by the disappearance of the cold crystallization temperature, an increase in the crystallinity, an increase in the crystallization temperature, and a decrease in the crystallization half-time. The PLLA-PEG-PLLA\'s thermal stability and heat resistance were enhanced by the addition of PPZn. The PPZn addition also enhanced the mechanical properties of the PLLA-PEG-PLLA, as demonstrated by the rise in ultimate tensile stress and Young\'s modulus. We can conclude that the PPZn has potential for use as a multi-functional filler for the PLLA-PEG-PLLA composite due to its nucleating-enhancing, thermal-stabilizing, and reinforcing ability.
摘要：
聚(L-丙交酯)-b-聚(乙二醇)-b-聚(L-丙交酯)(PLLA-PEG-PLLA)由于其优于PLLA的更大的灵活性而显示出用于生物塑料应用的前景。然而,需要进一步研究以使用适当的填料改善PLLA-PEG-PLLA的性能。这项研究使用苯基磷酸锌（PPZn）作为PLLA-PEG-PLLA的多功能填料。PPZn添加对PLLA-PEG-PLLA特性的影响,如结晶和热和机械性能，被调查了。PPZn和PLLA-PEG-PLLA之间存在良好的相相容性。PPZn的加入提高了PLLA-PEG-PLLA的结晶性能,正如冷结晶温度的消失所证明的那样，结晶度的增加，结晶温度的升高，和结晶半衰期的减少。PPZn的加入提高了PLLA-PEG-PLLA的热稳定性和耐热性。PPZn的添加还增强了PLLA-PEG-PLLA的机械性能，如极限拉应力和杨氏模量的增加所证明的。我们可以得出结论，由于其成核增强，PPZn具有用作PLLA-PEG-PLLA复合材料的多功能填料的潜力，热稳定，增强能力。
