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首页> 外文期刊>Journal of Polymers and the Environment >Optimization of Pineapple Leaf Fibre Extraction Methods and Their Biodegradabilities for Soil Cover Application
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Optimization of Pineapple Leaf Fibre Extraction Methods and Their Biodegradabilities for Soil Cover Application

机译：菠萝叶纤维提取方法的优化及其生物降解性在土壤覆盖中的应用

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摘要

Cellulosic natural fibres from pineapple leaves are considered as a green alternative to the conventional polyethylene (PE) soil cover in agro-industry. The use of pineapple leaf fibres (PALFs) soil cover can overcome the disposal problem of the conventional plastic covers which take hundreds of years to degrade. This research was undertaken to study the effectiveness methods of extracting the PALFs. The mechanical method utilized 'roller and bladder system', where the chemical method involved the extraction with 6% NaOH, 20% aqueous acetone, and pineapple juice solution. The semi-mechanical method was a combination of "roller and bladder" system and a chemical retting process using 6% NaOH alkaline solutions. The characteristics of the extracted fibers were determined using X-ray diffraction (XRD) and Fourier transform infrared spectroscopy (FTIR). Kappa number test of the fibres extracted with semi-mechanical method showed the lowest percentage of lignin (3.39%). Based on XRD results, the highest percentage of crystallinity was recorded when PALF was extracted using the semi-mechanical method. A remarkable change on the morphological surface the biodegraded PALF soil cover was observed after 90 days of soil burial test. Biodegradability of soil cover made from PALF was higher than the commercial degradable soil cover i.e. PE/starch (80 wt% PE/ 20 wt% starch). Meanwhile, the growing rate and the soil fertility of chili tree that used PALFs soil cover showed better results than the chili tree that used conventional PE/starch soil cover.
机译：菠萝叶中的纤维素天然纤维被认为是农业工业中传统聚乙烯（PE）土壤覆盖物的绿色替代品。菠萝叶纤维（PALFs）土壤覆盖物的使用可以克服传统塑料覆盖物的处置问题，这种降解需要数百年的时间才能降解。这项研究是为了研究提取PALFs的有效方法。机械方法采用“滚筒和膀胱系统”，其中化学方法包括用6％NaOH，20％丙酮水溶液和菠萝汁溶液提取。半机械方法是“滚筒和膀胱”系统与使用6％NaOH碱性溶液的化学脱胶工艺的结合。使用X射线衍射（XRD）和傅里叶变换红外光谱（FTIR）确定提取纤维的特性。用半机械法提取的纤维的卡伯值测试显示木质素的百分比最低（3.39％）。根据XRD结果，当使用半机械方法提取PALF时，记录了最高的结晶度百分比。 90天土壤埋藏试验后，观察到生物降解的PALF土壤覆盖物的形态表面发生了显着变化。由PALF制得的土壤覆盖物的生物降解性高于商用可降解土壤覆盖物，即PE /淀粉（80 wt％PE / 20 wt％淀粉）。同时，使用PALFs覆盖的辣椒树的生长速率和土壤肥力要比使用常规PE /淀粉土壤覆盖的辣椒树更好。

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  • 来源
    《Journal of Polymers and the Environment》 |2018年第1期|319-329|共11页
  • 作者

    Sarah S.; Rahman W. A. W. A.; Majid R. A.; Yahya W. J.; Adrus N.; Hasannuddin A. K.; Low J. H.;

  • 作者单位

    Univ Teknol Malaysia, Malaysia Japan Int Inst Technol MJIIT, Vehicle Syst Engn, Jalan Sultan Yahya Petra, Kuala Lumpur 54100, Malaysia|Univ Teknol Malaysia, Fac Chem & Energy Engn, Biopolymer Res Grp, Skudai 81310, Johor, Malaysia;

    Univ Teknol Malaysia, Fac Chem & Energy Engn, Biopolymer Res Grp, Skudai 81310, Johor, Malaysia;

    Univ Teknol Malaysia, Fac Chem & Energy Engn, Biopolymer Res Grp, Skudai 81310, Johor, Malaysia;

    Univ Teknol Malaysia, Malaysia Japan Int Inst Technol MJIIT, Vehicle Syst Engn, Jalan Sultan Yahya Petra, Kuala Lumpur 54100, Malaysia;

    Univ Teknol Malaysia, Fac Chem & Energy Engn, Biopolymer Res Grp, Skudai 81310, Johor, Malaysia;

    Univ Teknol Malaysia, Malaysia Japan Int Inst Technol MJIIT, Vehicle Syst Engn, Jalan Sultan Yahya Petra, Kuala Lumpur 54100, Malaysia;

    Univ Teknol Malaysia, Fac Chem & Energy Engn, Biopolymer Res Grp, Skudai 81310, Johor, Malaysia;

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  • 正文语种 eng
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  • 关键词

    Pineapple leaf fiber; Soil cover; Extraction; Biodegradability; Kappa number;

    机译：菠萝叶纤维;土壤覆盖;提取;生物降解性;卡伯值;

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