• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>RSC Advances >Waste brewed tea leaf derived cellulose nanofiber reinforced fully bio-based waterborne polyester nanocomposite as an environmentally benign material
【24h】

Waste brewed tea leaf derived cellulose nanofiber reinforced fully bio-based waterborne polyester nanocomposite as an environmentally benign material

机译：废弃酿造茶叶衍生纤维素纳米纤维加强全生物基水性聚酯纳米复合材料作为环境良性材料

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Bio-resources have carved a unique niche for the ever-increasing thrust of the global scientific community to impart green credentials to various research outputs along with the demands for advanced materials. In this milieu, the authors wish to fabricate a fully bio-based waterborne polyester nanocomposite as an advanced material using different bio-based reactants and cellulose nanofibers as the nanomaterial. Three different compositions of the nanocomposite were prepared at different loadings of cellulose nanofibers (0.25, 0.5 and 1 weight%) which were isolated from waste brewed green tea leaves. The structural attributes of the nanocomposites were evaluated by Fourier transform infrared spectroscopic, X-ray diffraction, scanning electron microscopic and transmission electron microscopic studies. The nanocomposites were further cured with glycerol based epoxy and fatty acid based poly(amido amine) as the hardener to obtain the respective thermosets. The significant improvements in mechanical properties including tensile strength (13.71-22.33 MPa), elongation at break (128-290%), toughness (15.65-45.18 MJ m(-3)) and scratch hardness (8 to >10 kg) were observed for the thermosetting nanocomposites and the thermogravimetric analysis supports their high thermostability (234-265 degrees C). Further, the thermosetting nanocomposites were found to be highly biodegradable by Bacillus subtilis and Pseudomonas aeruginosa bacterial strains, hemocompatible with the erythrocytes present in RBCs and showed antioxidant properties. Thus, this nanocomposite could be used as a promising eco-friendly material for different related applications.
机译：生物资源已经雕刻了一个独特的利基，以获得全球科学界的不断增长的推力，将绿色凭证传授各种研究产出以及先进材料的需求。在这个Milieu中，作者希望使用不同的生物基反应物和纤维素纳米纤维作为纳米材料制造完全生物基水性聚酯纳米复合材料。在不同载荷的纤维素纳米纤维（0.25,0.5和1重量％）的不同载荷中制备三种不同的组合物，其从废酿造的绿茶叶中分离出来。通过傅里叶变换红外光谱，X射线衍射，扫描电子显微镜和透射电子显微镜研究评估纳米复合材料的结构属性。将纳米复合材料用甘油基于甘油的环氧和脂肪酸基聚（Amido胺）作为硬化剂，得到相应的热固性。包括拉伸强度（13.71-22.33MPa），断裂伸长率（128-290％），韧性（15.65-45.18MJ m（-3））和划伤硬度（8至> 10kg）的显着改善对于热固性纳米复合材料和热重分析支持它们的高热稳定性（234-265℃）。此外，发现热固性纳米复合材料是由枯草芽孢杆菌和假单胞菌铜绿假单胞菌细菌菌株的高度生物降解的，与RBC中存在的红细胞的血液相处，并显示出抗氧化性能。因此，该纳米复合材料可用作不同相关应用的有前途的环保材料。

著录项

  • 来源
    《RSC Advances》 |2019年第36期|共12页
  • 作者

    Dutta Geeti Kaberi; Karak Niranjan;

  • 作者单位

    Tezpur Univ Dept Chem Sci Adv Polymer &

    Nanomat Lab Tezpur 784028 Assam India;

    Tezpur Univ Dept Chem Sci Adv Polymer &

    Nanomat Lab Tezpur 784028 Assam India;

  • 收录信息
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 化学;
  • 关键词

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号