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Microcrystalline Cellulose from Fruit Bunch Stalk of Date Palm: Isolation and Characterization

机译：来自枣牛的果实棕榈的微晶纤维素：隔离和表征

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摘要

Present study deals with the extraction and isolation of microcrystalline cellulose (MCC) from date palm fruit bunch stalk (DPFS) of date palm tree (Phoenix dactylifera L.) through integrated chemical method. To facilitate comparative study, each DPFS-treated, DPFS-pulp and DPFS-MCC samples were produced through respective bleaching, alkaline and acid hydrolysis treatments. The obtained samples were characterized in aspects of structural, morphological, elemental, crystallinity and thermal properties. From physicochemical analysis, fourier transform infrared ray (FTIR) and X-ray diffraction (XRD) showed the improved cellulose crystalline structure from DPFS-treated to DPFS-MCC. Morphology analysis revealed that the isolated DPFS-pulp and DPFS-MCC samples had microfibrillar structure, which achieved through the fibre disintegration by a series of chemical treatments. Moreover, the rigidity was also found the highest for isolated DPFS-MCC with 79.4% crystallinity degree. Further, the DPFS-MCC sample manifested better thermal properties for its high weight loss (84.15%), low residual weight (15.44%) and high decomposition temperature (364.2 degrees C) compared to the other fibre samples. Also, the DSC analysis showed the thermal behaviour which is in line with the thermal decomposition of those fibre samples. Therefore, in view of the overall result, the isolated DPFS-MCC could act as potential filler for reinforcing polymeric materials in composite field of applications.
机译：目前的研究通过综合化学方法对日期棕榈树（Phoenix Dactylifera L.）的日期棕榈果束茎（DPF）进行微晶纤维素（MCC）的提取和分离。为了促进比较研究，通过各自的漂白，碱性和酸性水解处理产生每种DPF处理的DPFS-纸浆和DPFS-MCC样品。所得样品的特征在于结构，形态，元素，结晶度和热性能方面。从物理化学分析，傅里叶变换红外线（FTIR）和X射线衍射（XRD）显示了从DPF处理到DPFS-MCC的改进的纤维素晶体结构。形态学分析表明，分离的DPFS-纸浆和DPFS-MCC样品具有微纤维纤维结构，其通过纤维崩解通过一系列化学处理来实现。此外，刚性也为分离的DPFS-MCC具有79.4％的结晶度。此外，与其他纤维样品相比，DPFS-MCC样品表现为其高重量损失（84.15％），低残留重量（15.44％）和高分解温度（364.2℃）的更好的热性能。此外，DSC分析显示了与那些纤维样品的热分解一致的热行为。因此，鉴于总体结果，分离的DPFS-MCC可以充当潜在的填料，用于加强在复合应用中的聚合物材料。

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  • 来源
    《Journal of Polymers and the Environment》 |2020年第6期|1766-1775|共10页
  • 作者

    Alotabi Majed D.; Alshammari Basheer A.; Saba N.; Alothman Othman Y.; Kian Lau Kia; Khan Anish; Jawaid Mohammad;

  • 作者单位

    King Abdulaziz City Sci & Technol Life Sci & Environm Res Inst Riyadh Saudi Arabia;

    King Abdulaziz City Sci & Technol Mat Sci Inst Natl Ctr Petrochem Riyadh Saudi Arabia;

    Univ Putra Malaysia Inst Trop Forestry & Forest Prod Dept Biocomposite Technol Upm Serdang Selangor Malaysia;

    King Saud Univ Coll Engn Dept Chem Engn Riyadh Saudi Arabia;

    Univ Putra Malaysia Inst Trop Forestry & Forest Prod Dept Biocomposite Technol Upm Serdang Selangor Malaysia;

    King Abdulaziz Univ Ctr Excellence Adv Mat Res POB 80203 Jeddah 21589 Saudi Arabia|King Abdulaziz Univ Fac Sci Chem Dept POB 80203 Jeddah 21589 Saudi Arabia;

    Univ Putra Malaysia Inst Trop Forestry & Forest Prod Dept Biocomposite Technol Upm Serdang Selangor Malaysia|King Saud Univ Coll Engn Dept Chem Engn Riyadh Saudi Arabia;

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  • 正文语种 eng
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  • 关键词

    Date palm tree; Fruit bunch stalk; Pulp bleaching; Acid hydrolysis; Microcrystalline cellulose;

    机译：枣椰树;果束茎;纸浆漂白;酸水解;微晶纤维素;

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