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首页> 外文期刊>RSC Advances >Toughening of POSS-MPS composites with low dielectric constant prepared with structure controllable micro/mesoporous nanoparticles
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Toughening of POSS-MPS composites with low dielectric constant prepared with structure controllable micro/mesoporous nanoparticles

机译：具有低介电常数的POSS-MPS复合材料的增韧，用结构可控微/介孔纳米粒子制备

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摘要

In this work, we developed a modified calcination and extraction method to obtain controllable micro/mesoporous nanoparticle samples POSS-MPS, which were synthesized through glycidyl polyhedral oligomeric silsesquioxane (G-POSS) grafting with aminopropyl-functionalized mesoporous silica (AP-MPS). The POSS-MPS was introduced into the cyanate ester (CE) matrix to optimize the dielectric properties and enhance the toughness of the POSS-MPS/CE nanocomposite. The structure of the hybrid was characterized by FTIR and SEM. The dispersion properties, mechanical properties, dielectric properties and thermal performance were also studied. The results showed that both the C-POSS-MPS and E-POSS-MPS uniformly distribute in the CE matrix with the content of 0.5-4 wt%. The impact strength increased 52% and 60% separately with 2 wt% C-POSS-MPS and E-POSS-MPS addition respectively. The introduction of E-POSS-MPS particles can significantly decrease the dielectric loss value of the POSS-MPS/CE composites to 0.00498, which is of potential in wave transparent composites and structures.
机译：在这项工作中，我们开发了改性煅烧和提取方法，以获得可控制的微/中孔纳米颗粒样品POSS-MPS，这是通过合成的缩水甘油基多面体低聚倍半硅氧烷（G-POSS）与氨基丙基 - 功能化的中孔二氧化硅（AP-MPS）接枝。在POSS-MPS引入氰酸酯（CE）矩阵，以优化的介电性能，提高POSS-MPS / CE纳米复合材料的韧性。杂交体的结构经FTIR和SEM。该分散特性，机械特性，介电性能和热性能进行了研究。结果表明，无论是C-POSS-MPS和E-POSS-MPS在CE基质均匀地分布与0.5-4％（重量）的内容。的冲击强度与2％（重量）分别C-POSS-MPS和E-POSS-MPS除了分别增加52％和60％。引入E-POSS-MPS颗粒可以显著降低POSS-MPS / CE复合材料的至0.00498介电损耗值，这是在波透明复合材料和结构的潜力。

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  • 来源
    《RSC Advances》 |2018年第71期|共10页
  • 作者

    Jiao Jian; Shao Yudi; Huang Fenchao; Wang Jia; Wu Zhenzhen;

  • 作者单位

    Northwestern Polytech Univ Sch Sci Dept Appl Chem Xian 710072 Shaanxi Peoples R China;

    Northwestern Polytech Univ Sch Sci Dept Appl Chem Xian 710072 Shaanxi Peoples R China;

    Northwestern Polytech Univ Sch Sci Dept Appl Chem Xian 710072 Shaanxi Peoples R China;

    Northwestern Polytech Univ Sch Sci Dept Appl Chem Xian 710072 Shaanxi Peoples R China;

    Northwestern Polytech Univ Sch Sci Dept Appl Chem Xian 710072 Shaanxi Peoples R China;

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  • 正文语种 eng
  • 中图分类 化学;
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