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首页> 外文期刊>Journal of Materials Science >The role of poly(ethylene terephthalate-co-isophthalate) as interfacial agent in polypropylene–matrix composites
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The role of poly(ethylene terephthalate-co-isophthalate) as interfacial agent in polypropylene–matrix composites

机译：聚对苯二甲酸乙二醇酯/间苯二甲酸酯作为界面活性剂在聚丙烯基复合材料中的作用

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摘要

The effect of modifying the particle/matrix interfacial region on the morphology and tensile behaviour of glass bead-filled polypropylene (PP) composites was studied. The interface modification was promoted by blending PP with a small concentration (5% by weight) of poly(ethylene terephthalate-co-isophthalate) (co-PET). Ten different PP/co-PET/glass beads ternary composites were prepared, characterized and compared with the homologous PP/glass beads binary ones. Maleic anhydride-grafted PP was added as a compatibilizing agent for PP and co-PET in some of the studied formulations, and its effect studied. Furthermore, four different silane-treated glass beads were used to prepare the composites (50 wt.%). Results showed that three different interfaces, corresponding to three different levels (low, middle and high) of particle/matrix adhesion, could be obtained in these composites by varying the matrix composition and the silane coupling agent on the glass bead surface, which resulted in a wide range of tensile properties, from ductile composites with low tensile strength and high elongation to brittle ones with high tensile strength. It was found that co-PET embeds glass bead surface independently of the silane coupling agent employed. Finally, the adhesion degree differences between the different composite phases seemed to be the main cause to explain the differences found in the sensitivity of the composite tensile characteristics to the strain rate.
机译：研究了改变颗粒/基体界面区域对玻璃珠填充聚丙烯（PP）复合材料的形貌和拉伸性能的影响。通过将PP与低浓度（5重量％）的聚对苯二甲酸乙二醇酯-共间苯二甲酸酯（co-PET）共混来促进界面改性。制备了十种不同的PP / co-PET /玻璃珠三元复合材料，并与同源的PP /玻璃珠二元复合物进行了比较。在某些研究配方中加入了马来酸酐接枝的PP作为PP和co-PET的相容剂，并研究了其效果。此外，使用四种不同的硅烷处理的玻璃珠来制备复合物（50重量％）。结果表明，通过改变玻璃珠表面上的基质组成和硅烷偶联剂，可以在这些复合物中获得三种不同的界面，分别对应于三种不同的颗粒/基质附着力水平（低，中和高）。从低拉伸强度和高伸长率的延性复合材料到高拉伸强度的脆性复合材料，其拉伸性能范围广泛。已经发现，co-PET独立于所使用的硅烷偶联剂而嵌入玻璃珠表面。最后，不同复合相之间的粘合度差异似乎是解释复合拉伸特性对应变速率敏感性差异的主要原因。

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  • 来源
    《Journal of Materials Science》 |2007年第8期|2782-2791|共10页
  • 作者

    D. Arencón; J. I. Velasco; M. Ardanuy; A. B. Martínez;

  • 作者单位

    Centre Català del Plàstic Departament de Ciència dels Materials i Enginyeria Metal.lúrgica Universitat Politècnica de Catalunya Vapor Universitari de Terrassa. C. Colom 114 08222 Terrassa Barcelona Spain;

    Centre Català del Plàstic Departament de Ciència dels Materials i Enginyeria Metal.lúrgica Universitat Politècnica de Catalunya Vapor Universitari de Terrassa. C. Colom 114 08222 Terrassa Barcelona Spain;

    Centre Català del Plàstic Departament de Ciència dels Materials i Enginyeria Metal.lúrgica Universitat Politècnica de Catalunya Vapor Universitari de Terrassa. C. Colom 114 08222 Terrassa Barcelona Spain;

    Centre Català del Plàstic Departament de Ciència dels Materials i Enginyeria Metal.lúrgica Universitat Politècnica de Catalunya Vapor Universitari de Terrassa. C. Colom 114 08222 Terrassa Barcelona Spain;

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