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Rheological properties of HDPE/chitosan composites modified with PE-g-MA

机译：PE-g-MA改性HDPE /壳聚糖复合材料的流变性能

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摘要

The rheological behavior of composites made with high-density polyethylene (HDPE) and chitosan was studied. Composites were prepared by melt processing in a laboratory internal mixer. Maleic anhydride grafted HDPE (PE-g-MA) was used as compatibilizer to enhance the dispersion of chitosan in the HDPE matrix. Different percentages of chitosan and compatibilizer (up to a maximum of 25 phr) were added into HDPE to prepare composites. Characterization of the composites with parallel plate rheometer and laboratory internal mixer revealed that the presence of chitosan increases the complex viscosity, loss modulus, storage modulus and the torque (i.e., melt viscosity), and the combination chitosan/compatibilizer has a similar, if slighter, effect. At higher filler levels it is clear that the PE-g-MA affected the microstructure of the compounds, possibly increasing matrix-filler interactions and acting as an effective compatibilizer.
机译：研究了由高密度聚乙烯（HDPE）和壳聚糖制成的复合材料的流变行为。通过在实验室内部混合器中熔融加工来制备复合材料。马来酸酐接枝的HDPE（PE-g-MA）被用作增容剂，以增强壳聚糖在HDPE基质中的分散性。将不同百分比的壳聚糖和增容剂（最多25 phr）添加到HDPE中以制备复合材料。用平行板流变仪和实验室内部混合器对复合材料进行表征，结果表明，壳聚糖的存在会增加复数粘度，损耗模量，储能模量和扭矩（即熔体粘度），并且壳聚糖/增容剂的组合物具有相似的作用，甚至更轻微。 ，效果。显然，在较高的填料含量下，PE-g-MA会影响化合物的微观结构，可能会增加基体与填料之间的相互作用并充当有效的增容剂。

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  • 来源
    《Journal of Materials Research》 |2017年第4期|775-787|共13页
  • 作者

    Poliana S. Lima; Rebecca S.F. Brito; Barbara F.F. Santos; Albaniza A. Tavares; Pankaj Agrawal; Daniela L.A.C.S. Andrade; Renate M.R. Wellen; Eduardo L. Canedo; Suedina M.L. Silva;

  • 作者单位

    Department of Materials Engineering, Federal University of Campina Grande, Campina Grande, PB 58429-900, Brazil;

    Department of Materials Engineering, Federal University of Campina Grande, Campina Grande, PB 58429-900, Brazil;

    Department of Materials Engineering, Federal University of Campina Grande, Campina Grande, PB 58429-900, Brazil;

    Department of Materials Engineering, Federal University of Campina Grande, Campina Grande, PB 58429-900, Brazil;

    Department of Materials Engineering, Federal University of Campina Grande, Campina Grande, PB 58429-900, Brazil;

    Department of Materials Engineering, Federal University of Campina Grande, Campina Grande, PB 58429-900, Brazil;

    Department of Materials Engineering, Federal University of Paraiba, Joao Pessoa, PB 58051-900, Brazil;

    Department of Materials Engineering, Federal University of Campina Grande, Campina Grande, PB 58429-900, Brazil;

    Department of Materials Engineering, Federal University of Campina Grande, Campina Grande, PB 58429-900, Brazil;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);
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