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Effects of interfacial modification and fiber content on physical properties of sisal fiber/polypropylene composites

机译：界面改性和纤维含量对剑麻纤维/聚丙烯复合材料物理性能的影响

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摘要

Sisal fiber (SF)/polypropylene (PP) composites were prepared at fiber content of 10, 20, and 30 wt.% and their mechanical, thermal, morphological, and water absorption properties were characterized. The effects of fiber treatment (alkalization and heat treatment) and adding a compatibilizer (maleic anhydride grafted polypropylene, MAPP) on the properties of the PP composites were comparatively studied. The fiber treatment and adding MAPP led to an improvement of mechanical properties, cellulose decomposition temperature, and water resistance of the PP composites. SEM micrographs revealed that the interfacial modification enhanced the interfacial adhesion between the fiber and the PP matrix. Alkalization and heat treatment provided comparable enhancement in the mechanical properties of the sisal fiber/PP composites. Adding MAPP showed the most effective improvement of the mechanical properties of the PP composites. With increasing fiber content, tensile strength and modulus of the PP composites increased but impact strength and elongation at break decreased. Water absorption of PP composites also increased with fiber content.
机译：剑麻纤维（SF）/聚丙烯（PP）复合材料的纤维含量分别为10、20和30 wt。％，并对其机械，热，形态和吸水性能进行了表征。比较研究了纤维处理（碱化和热处理）和添加相容剂（马来酸酐接枝聚丙烯，MAPP）对聚丙烯复合材料性能的影响。纤维处理和添加MAPP可以改善PP复合材料的机械性能，纤维素分解温度和耐水性。 SEM显微照片表明，界面改性增强了纤维与PP基体之间的界面粘合力。碱化和热处理在剑麻纤维/ PP复合材料的机械性能方面提供了相当的增强。添加MAPP可以最有效地改善PP复合材料的机械性能。随着纤维含量的增加，PP复合材料的拉伸强度和模量增加，但冲击强度和断裂伸长率降低。 PP复合材料的吸水率也随纤维含量的增加而增加。

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  • 来源
    《Composites》 |2013年第1期|544-549|共6页
  • 作者

    Sulawan Kaewkuk; Wimonlak Sutapun; Kasama Jarukumjorn;

  • 作者单位

    School of Polymer Engineering, Institute of Engineering, Suranaree University of Technology, Nakhon Ratchasima 30000, Thailand Center of Excellence on Petrochemical and Materials Technology, Bangkok 10330, Thailand;

    School of Polymer Engineering, Institute of Engineering, Suranaree University of Technology, Nakhon Ratchasima 30000, Thailand Center of Excellence on Petrochemical and Materials Technology, Bangkok 10330, Thailand;

    School of Polymer Engineering, Institute of Engineering, Suranaree University of Technology, Nakhon Ratchasima 30000, Thailand Center of Excellence on Petrochemical and Materials Technology, Bangkok 10330, Thailand;

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  • 正文语种 eng
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  • 关键词

    A. Polymer-matrix composites; B. Mechanical properties; B. Thermal properties; B. Interface; Natural fiber;

    机译：A.聚合物基复合材料;机械性能;B.热性能;B.接口;天然纤维;

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