Considering the importance of polylactic acid (PLA) biopolymer in industry, in this research we represent a protocol that benefits from the presence of PA6 phase (30 wt%), using an ester-amide exchange catalyst and GN as nanofiller to enhance PLA mechanical properties. To this purpose, it was decided to fabricate blends and nanocomposites in the presence of cobalt(II) acetylacetonate (Cat) as the catalyst. XRD patterns revealed good compatibility of the polymer moieties by broadening of the PLA characteristic peaks and also good dispersion of the GN nanoparticles within the matrix. In the TEM pictures, the GN nanoparticles size ranged from 20 to 130 nm which confirms its good intercalation and exfoliation. T₀ and T_max, considered as thermal stability, of the samples decreased slightly by reactive blending, however, the values were still comparable with them in pure PLA. DSC thermograms and the curves from DMTA exhibited the lower T_g, T_m and crystallinity values of PLA matrix in the alloys and nanocomposites especially in the presence of Cat. Investigation of tensile properties revealed significantly enhanced elongation at break, from 7 in origin PLA to the maximum of 29% in PLA/PA/Cat, with negligible deficiency in modulus, from 2.85 to a minimum of 1.95 GPa, and tensile strength, from 65 to a minimum of 46 MPa, respectively. MFI test results disclosed higher flow-ability of the alloys and composites in compare with neat PLA and also melt flow ratio in two different testing weighs, shows broad molecular weight distribution of the fabricates due to the occurrence of exchange reactions in the presence of Cat.

考虑到聚乳酸（PLA）生物聚合物在工业中的重要性，在这项研究中，我们代表一种使用酯酰胺交换催化剂和GN作为纳米填料增强PA6机械性能的方案，该方案受益于PA6相（30 wt％）的存在。为此，决定在乙酰丙酮钴（II）（Cat）作为催化剂的情况下制备共混物和纳米复合材料。XRD图谱显示，通过扩宽PLA特征峰，聚合物部分具有良好的相容性，并且GN纳米颗粒在基质中的分散性也很好。在TEM图片中，GN纳米颗粒的大小在20到130 nm之间，这证实了其良好的嵌入和剥离效果。T ₀和T _max反应共混后，样品的热稳定性（被认为是热稳定性）略有下降，但是，该值仍与纯PLA相当。DSC热分析图和DMTA曲线显示较低的T _g，T _m合金和纳米复合材料中PLA基体的结晶度和结晶度值，特别是在Cat的存在下。拉伸性能的研究表明，断裂伸长率显着提高，从原始PLA的7提高到PLA / PA / Cat的最大值29％，模量从2.85降低到1.95 GPa的最小值可以忽略不计，拉伸强度从65最低分别为46 MPa。MFI测试结果显示，与纯PLA相比，合金和复合材料具有更高的流动性，并且在两种不同的测试重量下的熔体流动比也更高，这表明由于在Cat的存在下发生了交换反应，从而使织物的分子量分布较宽。