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首页> 外文期刊>RSC Advances >Acetylation improves thermal stability and transmittance in FOLED substrates based on nanocellulose films
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Acetylation improves thermal stability and transmittance in FOLED substrates based on nanocellulose films

机译：乙酰化基于纳米纤维素薄膜提高了叶片基材中的热稳定性和透射率

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摘要

Bleached softwood pulp was used to prepare nanofibrillated cellulose (NFC) by mechanical grinding and a high-pressure homogenization process. Acetylation improved the aspect ratio and dispersion of the NFC; however, highly acetylated NFC was not able to form a film by vacuum filtration if the NFC : acetic anhydride (AA) ratio was greater than 1 : 6. An NFC film prepared by acetylated NFC has potential as a flexible organic light-emitting device (FOLED) substrate. Acetylation improved the thermal stability and transmittance of NFC films, which were optimal at 5.43 ppm K-1 and 65%, respectively, when the ratio of NFC : AA was 1 : 3. Moreover, both the mechanical properties and flexibility of the NFC films were well maintained when the NFC : AA ratio was 1 : 3. Additionally, all NFC films prepared by acetylated NFC were smooth, flat, and uniform.
机译：通过机械研磨和高压均质化方法，使用漂白软木纸浆制备纳米纤化纤维素（NFC）。 乙酰化改善了NFC的纵横比和分散; 然而，如果NFC：乙酸酐（AA）比大于1：6，则高度乙酰化NFC不能通过真空过滤形成膜。通过乙酰化NFC制备的NFC膜具有柔性有机发光装置（ 叶片）衬底。 乙酰化改善了NFC膜的热稳定性和透射率，当NFC：AA的比例分别为5.43ppm K-1和65％时，它们分别为5.43ppm k-1和65％，而且NFC膜的机械性能和柔韧性 当NFC：AA比率为1：3时保持良好。另外，通过乙酰化NFC制备的所有NFC膜都是光滑的，平坦的和均匀的。

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

    Yang Shuang; Xie Qiuxia; Liu Xiuyu; Wu Min; Wang Shuangfei; Song Xueping;

  • 作者单位

    Guangxi Univ Coll Light Ind &

    Food Engn Nanning 530004 Peoples R China;

    Guangxi Univ Coll Light Ind &

    Food Engn Nanning 530004 Peoples R China;

    Guangxi Univ Coll Light Ind &

    Food Engn Nanning 530004 Peoples R China;

    Guangxi Univ Coll Light Ind &

    Food Engn Nanning 530004 Peoples R China;

    Guangxi Univ Coll Light Ind &

    Food Engn Nanning 530004 Peoples R China;

    Guangxi Univ Coll Light Ind &

    Food Engn Nanning 530004 Peoples R China;

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  • 正文语种 eng
  • 中图分类 化学;
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