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首页> 外文期刊>Polymers for advanced technologies >Cooperative effects of nucleation agent and plasticizer on crystallization properties of stereocomplex-type poly(lactide acid)
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Cooperative effects of nucleation agent and plasticizer on crystallization properties of stereocomplex-type poly(lactide acid)

机译：成核剂与增塑剂的协同作用对立体络合物型聚乳酸的结晶性能的影响

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摘要

An investigation of the cooperative effects of plasticizer (PEG) and nucleation agent (TMC-306) on stereocomplex-type poly(lactide acid) formation and crystallization behaviors between poly(L-lactide acid) (PLLA) and poly(D-lactide acid) (PDLA) was conducted. Wide-angle X-ray diffraction (WAXD) and differential scanning calorimetry (DSC) analysis indicated that exclusive stereocomplex-type poly(lactide acid) (sc-PLA) crystallites without any homocrystallites poly(lactide acid) (hc-PLA) did form by incorporation of PEG, TMC-306, or both at a processing temperature higher than the melting temperature of sc-PLA (around 230 degrees C). The non-isothermal and isothermal crystallization kinetics showed that PEG and TMC-306 could independently accelerate the crystallization rate of sc-PLA. The crystallization peak temperature and crystallization rate of sc-PLA were significantly improved by the presence of PEG and TMC-306. The influence of PEG and TMC-306 on the morphologies of sc-PLA was also investigated using polarized optical microscopy (POM). Copyright (c) 2016 John Wiley & Sons, Ltd.
机译：增塑剂（PEG）和成核剂（TMC-306）协同作用对立体复合型聚丙交酯酸的形成和结晶行为的研究）（PDLA）。广角X射线衍射（WAXD）和差示扫描量热法（DSC）分析表明，确实形成了独有的立体络合物型聚乳酸（sc-PLA）微晶，而没有任何均聚物聚乳酸（hc-PLA）通过在高于sc-PLA熔化温度（约230摄氏度）的加工温度下掺入PEG，TMC-306或两者。非等温和等温结晶动力学表明，PEG和TMC-306可以独立地促进sc-PLA的结晶速率。 PEG和TMC-306的存在显着提高了sc-PLA的结晶峰温度和结晶速率。 PEG和TMC-306对sc-PLA形态的影响也使用偏振光学显微镜（POM）进行了研究。版权所有（c）2016 John Wiley＆Sons，Ltd.

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