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首页> 外文期刊>Polymer bulletin >Composites based on high-density polyethylene, polylactide and calcium carbonate: effect of calcium carbonate nanoparticles as co-compatibilizers
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Composites based on high-density polyethylene, polylactide and calcium carbonate: effect of calcium carbonate nanoparticles as co-compatibilizers

机译：基于高密度聚乙烯，聚酰胺和碳酸钙的复合材料：碳酸钙纳米粒子作为共聚者的影响

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摘要

Investigating the compatibility mechanism of hybrid composites based on two polymers and one mineral nanofiller is a challenge that needs to be better understood. This study evaluates the effect of calcium carbonate (nCaCO(3)) nanoparticles as co-compatibilizers in a blend based on poly(lactic acid) (PLA), polyethylene from renewable sources (HDPE) and maleic anhydride grafting polyethylene (HDPE-g-MA or MA) using rheological and morphological analyses. Morphological assessment by scanning electron microscopy showed the formation of co-continuous-like phase morphology when nCaCO(3) was added to the PLA/MA/HDPE blend, indicating that nCaCO(3) affected the dispersion of PLA domains in the HDPE matrix. Rheological characterization carried out by stress relaxation and sweep frequency response analysis demonstrated that the addition of nCaCO(3) improved the solid-like behavior of the blend, corroborating the morphological results. Additionally, an interaction mechanism of nCaCO(3) as a co-compatibilizer was also proposed.
机译：研究基于两个聚合物的混合体复合材料的相容机理，一个矿物纳米填充物是需要更好地理解的挑战。本研究评估碳酸钙（Ncaco（3））纳米颗粒的作用为基于聚（乳酸）（PLA），来自可再生源（HDPE）和马来酸酐接枝聚乙烯的聚乙烯（HDPE-G- MA或MA）使用流变和形态学分析。通过扫描电子显微镜的形态学评估显示，当向PLA / MA / HDPE混合物中加入Ncaco（3）时，表明Ncaco（3）影响了HDPE基质中PLA结构域的分散。通过应力松弛和扫描频率响应分析进行的流变表征证明了Ncaco（3）的加入改善了混合物的固体样行为，证实了形态学结果。另外，还提出了Ncaco（3）作为共复杂剂的相互作用机理。

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