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首页> 外文期刊>RSC Advances >Keratin-polyethylene oxide bio-nanocomposites reinforced with ultrasonically functionalized graphene
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Keratin-polyethylene oxide bio-nanocomposites reinforced with ultrasonically functionalized graphene

机译：用超声官能化石墨烯增强角蛋白 - 聚环氧乙烷生物纳米复合材料

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摘要

Polyethylene oxide (PEO) functionalized graphene (f-G) was prepared by ultrasonication of pristine graphene in PEO aqueous solution. The feasible sonication protocol of PEO degradation and graphene functionalization enabled fabrication of solvent cast nanocomposites. Additionally, the steps to form new bio-nanocomposite films have been described. Taking the advantage of the combination of graphene, PEO and keratin fibers from poultry feather waste, the aforementioned bio-nanocomposite films were designed with extraordinary properties allowing the films to have promising applications as eventual packaging materials and enabling bio-waste keratin to be converted into value-added materials. Compared to neat PEO, addition of only 0.3 wt% f-G provided an increase of 92% to the storage modulus. These findings are similar to the nanoindentation results, which yielded increases in the reduced modulus of the same composition by about 92%. Nanoindentation testing shows that the incorporation of 0.3 wt% f-G increased the reduced modulus and hardness of the keratin-PEO blend by about 155 and 99%, respectively.
机译：通过在PEO水溶液中超自然的原始石墨烯制备聚环氧乙烷（PEO）官能化石墨烯（F-G）。 PEO降解和石墨烯官能化的可行超声处理协议使溶剂浇注纳米复合材料的制备。另外，已经描述了形成新的生物纳米复合膜的步骤。从家禽羽毛废物中采用石墨烯，PeO和角蛋白纤维的组合，设计了上述生物纳米复合膜，具有特殊的性质，使薄膜具有最终包装材料的希望应用，并使生物废物角蛋白能够转换成增值材料。与整齐的PEO相比，仅增加0.3wt％F-g，提供92％的储存模量。这些发现类似于纳米indentation结果，其产生的增加的成分的增加约为92％。纳米狭窄测试表明，0.3wt％F-g的掺入分别将角蛋白 - PEO混合物的模量和硬度降低，分别为约155％和99％。

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  • 来源
    《RSC Advances》 |2015年第111期|共8页
  • 作者

    M. Grkovic; D. B. Stojanovic; A. Kojovic;

  • 作者单位

    Innovation Centre University of Belgrade Faculty of Technology and Metallurgy Belgrade Serbia.;

    University of Belgrade Faculty of Technology and Metallurgy Belgrade Serbia;

    Innovation Centre University of Belgrade Faculty of Technology and Metallurgy Belgrade Serbia.;

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  • 正文语种 eng
  • 中图分类 化学;
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