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首页> 外文期刊>Journal of Polymers and the Environment >Effect of Alkali Treatment on Mechanical and Morphological Properties of Pineapple Leaf Fibre/Polyester Composites
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Effect of Alkali Treatment on Mechanical and Morphological Properties of Pineapple Leaf Fibre/Polyester Composites

机译：碱处理对菠萝叶纤维/聚酯复合材料力学和形态性能的影响

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摘要

In this study, our aim is to analyze the influence of fibre treatments and different fibre loading on mechanical, physical and chemical properties of pineapple leaf fibre reinforced polyester composites (PALF/PE). Fibre treatments were carried out with 1N NaOH and KOH for 1h. The untreated and treated PALF/PE composites were fabricated with 25wt%, 35wt% and 45wt% fibre loadings by compression molding technique. Fourier Transform Infrared Spectroscopy (FTIR) was used to understand the effects of chemical treatment on PALF mechanical test results revealed that 45wt% of PALF/PE composites treated with NaOH showed a 35% increase in tensile strength compared to untreated PALF/PE composites. The tensile modulus and the flexural module are also the highest at 45wt% of KOH treated composites. The highest impact strength of 70J/m was obtained for PALF/PE composites with NaOH treated fibres at 25% fibre loading. The results show that the fibre treatments in terms of the flexural and inter-laminar shear strength of composites were not effective. SEM of the tensile fractured specimen of PALF/PE composites revealed the changes in fibre characteristics due to the alkali treatment and less fibre pull-out at higher fibre loading. Overall we conclude that 1N NaOH, 45wt% treated PALF/PE composites satisfactorily and effectively improved both the mechanical and morphological properties. Obtained composites would be promising for construction materials, furniture and automotive components due to their superior strength and modulus at higher fibre loading.
机译：在这项研究中，我们的目的是分析纤维处理和不同纤维负载量对菠萝叶纤维增强聚酯复合材料（PALF / PE）的机械，物理和化学性能的影响。用1N NaOH和KOH进行纤维处理1小时。通过压缩成型技术以25wt％，35wt％和45wt％的纤维负载量制备未经处理和经处理的PALF / PE复合材料。傅立叶变换红外光谱（FTIR）用于了解化学处理对PALF机械性能的影响，结果表明，与未处理的PALF / PE复合材料相比，用NaOH处理的PALF / PE复合材料的45wt％显示出35％的拉伸强度增加。拉伸模量和弯曲模量在KOH处理的复合材料中也最高，为45wt％。含NaOH处理的纤维的PALF / PE复合材料在25％的纤维负载下可获得最高70J / m的冲击强度。结果表明，就复合材料的弯曲和层间剪切强度而言，纤维处理是无效的。 ＰＡＬＦ ／ ＰＥ复合材料的拉伸断裂试样的ＳＥＭ显示，由于碱处理和在较高的纤维载荷下较少的纤维拉出，纤维特性发生了变化。总的来说，我们得出的结论是1N NaOH，45wt％的PALF / PE复合材料能够令人满意地并有效地改善机械性能和形态性能。所获得的复合材料由于在较高的纤维负载下具有优异的强度和模量，因此有望用于建筑材料，家具和汽车零部件。

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  • 来源
    《Journal of Polymers and the Environment》 |2019年第6期|1191-1201|共11页
  • 作者

    Senthilkumar K.; Rajini N.; Saba N.; Chandrasekar M.; Jawaid M.; Siengchin Suchart;

  • 作者单位

    Kalasalingam Acad Res & Educ, Dept Mech Engn, Ctr Composite Mat, Srivilliputtur 626126, Tamil Nadu, India|King Mongkuts Univ Technol North Bangkok, Grad Sch Engn TGGS, Sirindhorn Int ThaiGerman, Dept Mech & Proc Engn, Bangkok 10800, Thailand;

    Kalasalingam Acad Res & Educ, Dept Mech Engn, Ctr Composite Mat, Srivilliputtur 626126, Tamil Nadu, India;

    Univ Putra Malaysia, Inst Trop Forestry & Forest Prod INTROP, Lab Biocomposite Technol, Upm Serdang 43400, Selangor, Malaysia;

    Univ Putra Malaysia, Dept Aerosp Engn, Fac Engn, Upm Serdang 43400, Selangor, Malaysia;

    Univ Putra Malaysia, Inst Trop Forestry & Forest Prod INTROP, Lab Biocomposite Technol, Upm Serdang 43400, Selangor, Malaysia;

    King Mongkuts Univ Technol North Bangkok, Grad Sch Engn TGGS, Sirindhorn Int ThaiGerman, Dept Mech & Proc Engn, Bangkok 10800, Thailand;

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  • 正文语种 eng
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  • 关键词

    Pineapple leaf fibre; Polyester composites; Alkali treatment; Mechanical properties; Morphological properties; Inter-laminar shear strength;

    机译：菠萝叶纤维;聚酯复合材料;碱处理;力学性能;形态学性能;层间剪切强度;

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