The effect of Joncryl ADR^®-4368 (abbreviated ADR) and dicumyl peroxide (DCP) on poly(butylene adipate-co-terephthalate) (PBAT)/poly(lactic acid) (PLA) blend was investigated. Two different blending procedures were adopted: (1) one-step blending of all components for 8 min; (2) premixing of PBAT and ADR (or DCP) for 4 min followed by addition of PLA blending for 4 min. ADR and DCP were effective compatibilizers for the PBAT/PLA blend by one-step blending which were confirmed by improving the phase interface between PBAT and PLA, decreasing the dispersed phase size, increasing the elasticity, viscosity and tensile strength. Moreover, the addition of ADR into PBAT/PLA blend by two-step blending was more efficient than the one-step blending based on refined morphology and further increased tensile properties. The two-step blending was beneficial to produce a larger amount of PBAT-graft-PLA (PBAT-g-PLA) copolymers at the phase interface. However, DCP was added to the PBAT/PLA blend by the two-step blending which showed lower properties than one-step blending. DCP triggered free branching reactions in a fast way. Based on the character of compatibilizers, choosing properly blending procedures can enlarge the tensile properties. These results would be interesting for industrial polymer materials, and may be importance to the wider practical application of PBAT/PLA blends.

中文翻译：

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混合步骤和反应性增容剂对可生物降解的聚己二酸丁二醇酯-对苯二甲酸对苯二甲酸酯/聚乳酸混合物的性能的影响

的Joncryl ADR的影响^®研究了聚己二酸丁二酯-对苯二甲酸对苯二甲酸酯（PBAT）/聚乳酸（PLA）混合物上的-4368（缩写为ADR）和过氧化二枯基（DCP）。采用两种不同的混合步骤：（1）所有组分一步混合8分钟；（2）将PBAT和ADR（或DCP）预混合4分钟，然后加入PLA混合4分钟。ADR和DCP是一步混合法对PBAT / PLA共混物的有效增容剂，可通过改善PBAT和PLA之间的相界面，减小分散相的大小，增加弹性，粘度和拉伸强度来证实。此外，通过两步共混将ADR添加到PBAT / PLA共混中比基于精细形态和进一步提高拉伸性能的一步共混更为有效。两步共混有利于在相界面处产生大量的PBAT-接枝-PLA（PBAT-g-PLA）共聚物。但是，通过两步混合将DCP添加到PBAT / PLA共混物中，该过程显示出比一步混合低的性能。DCP快速触发了自由支化反应。根据增容剂的特性，选择适当的共混程序可以提高拉伸性能。这些结果对于工业聚合物材料将是令人感兴趣的，并且对于PBAT / PLA共混物的更广泛的实际应用可能是重要的。选择适当的混合程序可以扩大拉伸性能。这些结果对于工业聚合物材料将是令人感兴趣的，并且对于PBAT / PLA共混物的更广泛的实际应用可能是重要的。选择适当的混合程序可以扩大拉伸性能。这些结果对于工业聚合物材料将是令人感兴趣的，并且对于PBAT / PLA共混物的更广泛的实际应用可能是重要的。