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首页> 外文期刊>RSC Advances >Ice-regenerated flame retardant and robust film of Bombyx mori silk fibroin and POSS nano-cages
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Ice-regenerated flame retardant and robust film of Bombyx mori silk fibroin and POSS nano-cages

机译：Bombyx Mori丝素蛋白和POSS纳米笼的冰再生阻燃和强大的薄膜

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摘要

In this study, we present a simple method to prepare and control the structure of regenerated hybrid silkworm silk films through icing. A regenerated hybrid silk (RHS) film consisting of a micro-fibrillar structure was obtained by partially dissolving amino-functionalized polyhedral oligomeric silsesquioxanes (POSS) and silk fibers in a CaCl2-formic acid solution. After immersion in water and icing, the obtained films of RHS showed polymorphic and strain-stiffening behaviors with mechanical properties that were better than those observed in dry or wet-regenerated silk. It was also found that POSS endowed the burning regenerated silk film with anti-dripping properties. The higher beta-sheet content observed in the ice-regenerated hybrid micro-fibrils indicates a useful route to fabricate regenerated silk with physical and functional properties, i.e. strain-stiffening, similar to those observed to date in natural spider silk counterpart and synthetic rubbers, and anti-dripping of the flaming melt. Related carbon nanotube composites are considered for comparison.
机译：在这项研究中，我们介绍了一种简单的方法，通过结冰制备和控制再生杂交蚕丝膜的结构。通过将氨基官能化的多面体低聚体二烷烷（POSS）和丝纤维部分溶解在CaCl 2-甲酸溶液中，获得由微纤维结构组成的再生杂交丝（RHS）膜。在浸入水中和结冰之后，所得RHS膜显示出具有比在干燥或湿式再生丝的中观察到的机械性能的多态性和菌株加强行为。还发现，通过抗滴水性能赋予燃烧的再生丝膜。在冰再生的杂交微纤维中观察到的更高的β-板料表明，用物理和功能性，即应变加固的可用途径，即类似于天然蜘蛛丝对应和合成橡胶的迄今为止观察到的那些。并反滴的燃烧熔体。考虑相关的碳纳米管复合材料进行比较。

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  • 来源
    《RSC Advances》 |2018年第17期|共7页
  • 作者

    Valentini Luca; Bon Silvia Bittolo; Pugno Nicola M.;

  • 作者单位

    Univ Perugia UdR INSTM Dipartimento Ingn Civile Ambientale Str Pentima 4 I-05100 Terni Italy;

    Univ Perugia UdR INSTM Dipartimento Ingn Civile Ambientale Str Pentima 4 I-05100 Terni Italy;

    Univ Trento Dept Civil Environm &

    Mech Engn Lab Bioinspired &

    Graphene Nanomech Via Mesiano 77 Trento Italy;

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  • 正文语种 eng
  • 中图分类 化学;
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