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首页> 外文期刊>Journal of Applied Polymer Science >Rheological behavior and morphology of poly(lactic acid)/low-density polyethylene blends based on virgin and recycled polymers: Compatibilization with natural surfactants
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Rheological behavior and morphology of poly(lactic acid)/low-density polyethylene blends based on virgin and recycled polymers: Compatibilization with natural surfactants

机译：基于处女和再循环聚合物的聚（乳酸）/低密度聚乙烯共混物的流变行为及形态：天然表面活性剂的相容化

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摘要

Blends based on poly(lactic acid) and low-density polyethylene were compatibilized exploiting an innovative strategy involving the introduction of different mixtures of two sustainable liquid surfactants characterized by dissimilar hydrophilic-lipophilic ratios. The compatibilization method was first applied on blends made of virgin polymers, aiming at assessing the surfactant mixture inducing a more significant morphology refinement. Besides, to verify the effectiveness of the selected compatibilizers on recycled materials, the same process was carried out on blends based on reprocessed polymers. Interestingly, the compatibilization caused a significant microstructure modification, with a decrease of 54% of the mean size of the dispersed particles, in the case of virgin polymers-based blends, with a consequent increase of 19% of the dynamic elastic modulus. On the other hand, in the case of reprocessed polymers-based blends, a different compatibilizer efficiency was observed, as the noncompatibilized blend showed amore regular microstructure compared to the compatibilized counterpart.
机译：基于聚乳酸和低密度聚乙烯的共混物采用一种创新策略进行增容，该策略包括引入两种具有不同亲水亲油比率的可持续液体表面活性剂的不同混合物。首次将增容方法应用于由原始聚合物制成的共混物，旨在评估表面活性剂混合物诱导更显著的形态细化。此外，为了验证所选相容剂对回收材料的有效性，对基于再加工聚合物的共混物进行了相同的处理。有趣的是，增容引起了显著的微观结构改变，在未经处理的聚合物基共混物中，分散颗粒的平均尺寸减小了54%，动态弹性模量随之增加了19%。另一方面，在再加工聚合物基共混物的情况下，观察到不同的增容剂效率，因为与增容对应物相比，非增容共混物显示出更规则的微观结构。

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