This study aims to evaluate the effects of poly(2-ethyl-oxazoline) (PEOx) on the thermal properties, wettability, and optical properties of poly(lactic acid) (PLA). The PLA/PEOx blends (PEOx loading: 5 to 20 wt%) were prepared using the solvent casting method. Good interaction between PLA and PEOx was confirmed by Fourier transform infrared spectroscopy (FTIR) and work of adhesion (determined from dynamic contact angle). The transparency of PLA was improved by the addition of PEOx. X-ray diffraction (XRD) and differential scanning calorimetry (DSC) results proved that the PEOx induces the β-crystals formation of PLA. The higher the loading of PEOx is, the higher the intensity of the β-crystals formation. The transparent PLA/PEOx blends are suitable for packaging applications (both non-food and food packaging).

这项研究旨在评估聚（2-乙基-恶唑啉）（PEOx）对聚乳酸（PLA）的热学性质，润湿性和光学性质的影响。使用溶剂浇铸法制备PLA / PEOx共混物（PEOx载量：5至20 wt％）。通过傅里叶变换红外光谱（FTIR）和粘附作用（由动态接触角确定）证实了PLA与PEOx之间的良好相互作用。通过添加PEOx可以提高PLA的透明度。X射线衍射（XRD）和差示扫描量热法（DSC）的结果证明，PEOx诱导了PLA的β晶体形成。PEOx的负载越高，β的强度越高-晶体形成。透明的PLA / PEOx混合物适用于包装应用（非食品和食品包装）。