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首页> 外文期刊>Materials Chemistry and Physics. >Effects of surface modification of β-CaSiO_3 on electrospun poly(butylene succinate)/β-CaSiO_3 composite fibers
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Effects of surface modification of β-CaSiO_3 on electrospun poly(butylene succinate)/β-CaSiO_3 composite fibers

机译：β-CaSiO_3表面改性对电纺聚丁二酸丁二酯/β-CaSiO_3复合纤维的影响

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摘要

In this experiment, pure PBSU fibers, PBSU/12.5% β-CaSiO_3, and PBSU/25% β-CaSiO_3 composite fibers were fabricated by electrospinning. In order to investigate the effects of surface modification of β-CaSiO_3 on composite fibers, β-CaSiO_3 nanowires were surface esterified using dodecyl alcohol. SEM micrographs showed that composite materials with modified β-CaSiO_3 have homogeneous fibrous structures similar as that of pure PBSU fibers, while the fibers containing unmodified β-CaSiO_3 were inhomogeneous and much larger in diameter, and also junctions where α-CaSiO_3 agglomerated could be found. Mechanical testing showed that with the addition of unmodified α-CaSiO_3 into PBSU matrix, the tensile strength of fibrous materials decreased obviously, and the decrease degree increased with increased β-CaSiO_3 content. However, the tensile stresses of composite materials after surface modification of β-CaSiO_3 turned back and increased about 40% compared to those containing unmodified β-CaSiO_3. All of these results suggested surface modification of β-CaSiO_3 was an effective approach to obtain composite fibrous materials with better morphologies and enhanced mechanical properties, and this method is supposed to be feasible in other fibrous material systems.
机译：在该实验中，通过电纺丝制造了纯PBSU纤维，PBSU / 12.5％β-CaSiO_3和PBSU / 25％β-CaSiO_3复合纤维。为了研究β-CaSiO_3的表面改性对复合纤维的影响，使用十二烷醇对β-CaSiO_3纳米线进行了表面酯化。扫描电镜显微照片显示，具有改性的β-CaSiO_3的复合材料具有与纯PBSU纤维相似的均质纤维结构，而包含未改性的β-CaSiO_3的纤维不均一且直径大得多，并且还可以发现聚集有α-CaSiO_3的结。 。力学性能测试表明，在PBSU基体中加入未改性的α-CaSiO_3，纤维材料的拉伸强度明显下降，且随着β-CaSiO_3含量的增加，下降程度增加。但是，与未经改性的β-CaSiO_3相比，对β-CaSiO_3进行表面改性后的复合材料的拉伸应力反而增加了约40％。所有这些结果表明，β-CaSiO_3的表面改性是获得具有更好形貌和增强机械性能的复合纤维材料的有效方法，并且该方法被认为在其他纤维材料系统中是可行的。

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  • 来源
    《Materials Chemistry and Physics.》 |2009年第3期|379-384|共6页
  • 作者

    Darning Zhang; Jiang Chang;

  • 作者单位

    Biomaterials and Tissue Engineering Research Center, Shanghai Institute of Ceramics, Chinese Academy of Sciences, 1295 Dingxi Road, Shanghai 200050, People's Republic of China Graduate School of the Chinese Academy of Sciences, 1295 Dingxi Road, Shanghai 200050, People's Republic of China;

    Biomaterials and Tissue Engineering Research Center, Shanghai Institute of Ceramics, Chinese Academy of Sciences, 1295 Dingxi Road, Shanghai 200050, People's Republic of China;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    composite materials; interfaces; microstructure; mechanical properties;

    机译：复合材料;接口;微观结构机械性能;

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