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首页> 外文学位 >Nanofiller Modification and Incorporation into Fluoropolymer Nanocomposites and the Properties thereof.
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Nanofiller Modification and Incorporation into Fluoropolymer Nanocomposites and the Properties thereof.

机译：纳米填料的改性和掺入含氟聚合物纳米复合材料及其性能。

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摘要

Polymer nanocomposites (PNC) are of great interest owing to the many potential property enhancements possible via introducing different types of nanofillers in polymer matrices. In recent decades, increasing attention has being paid to PNCs due to their light weight, low cost, and ease of processability compared to metal alternatives and due to their novel capability to tune properties. Depending on the end-use application, certain PNCs properties are targeted and the PNC formulation and processing can be manipulated to achieve the desired properties.;In this PhD thesis, different PNC properties have been improved by employing different strategies: (1) modification of nanofillers, (2) synthesis of novel nanofillers, (3) implementation of hybrid fillers, and (4) amendment of PNC production methods. For nanofiller modification, chemical treatment of nanoclay, multiwall carbon nanotube (MWCNT) and graphene nanoribbon (GNR) were performed. For the second strategy, GNR was synthesized from parent MWCNT to benefit from higher surface area and interaction of the novel nanofillers with the polymer chains. The main objective of these two strategies is to improve the affinity and dispersion of nanofillers in the host polymer to enhance PNC properties. Utilizing a secondary filler to further enhance the desired properties was the third strategy and was accomplished via a hybrid filler PNC consisting of MWCNT and nanoclay. Finally, the fourth strategy was to develop optimized PNC production methods. The aim of the last two strategies was to obtain an improved morphology for the nanocomposite and it is well known that nanocomposite structure can be used to control the final PNC properties.
机译：由于通过在聚合物基质中引入不同类型的纳米填料可能实现许多潜在的性能增强，聚合物纳米复合材料（PNC）引起了人们的极大兴趣。近几十年来，由于PNC的重量轻，成本低以及与金属替代品相比的易加工性，以及由于其新颖的性能调节能力，它们引起了越来越多的关注。根据最终用途的应用，确定某些PNC的特性，并可以操纵PNC的配方和加工以获得所需的特性。在本博士学位论文中，通过采用不同的策略改进了不同的PNC特性：（1）修改纳米填料，（2）新型纳米填料的合成，（3）混合填料的实现，以及（4）PNC生产方法的修订。对于纳米填料改性，进行了纳米粘土，多壁碳纳米管（MWCNT）和石墨烯纳米带（GNR）的化学处理。对于第二种策略，从母体MWCNT合成GNR，以受益于更高的表面积以及新型纳米填料与聚合物链的相互作用。这两种策略的主要目的是提高纳米填料在主体聚合物中的亲和力和分散性，以增强PNC性能。利用第二种填料进一步增强所需性能是第三种策略，并且是通过由MWCNT和纳米粘土组成的混合填料PNC实现的。最后，第四个策略是开发优化的PNC生产方法。后两种策略的目的是为纳米复合材料获得改善的形态，众所周知，纳米复合结构可用于控制最终的PNC性能。

著录项

  • 作者

    Khajehpour, Maryam.;

  • 作者单位

    University of Calgary (Canada).;

  • 授予单位 University of Calgary (Canada).;
  • 学科 Nanotechnology.;Plastics Technology.;Engineering Chemical.
  • 学位 Ph.D.
  • 年度 2014
  • 页码 221 p.
  • 总页数 221
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

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