• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Journal of nano research >Preparation and Characterization of Polysiloxane Modified Graphene Oxide/PMMA Nanocomposites with Non-Convalent Interfaces
【24h】

Preparation and Characterization of Polysiloxane Modified Graphene Oxide/PMMA Nanocomposites with Non-Convalent Interfaces

机译：具有非共价界面的聚硅氧烷改性氧化石墨烯/ PMMA纳米复合材料的制备与表征

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Graphene oxide (GO) was modified by polyphenylvinylsiloxane (PPVS) through pi-pi conjugation interaction. The modified GO/PMMA nanocomposites were prepared via in situ bulk polymerization. The modification of GO was characterized by using Fourier transformed infrared spectroscopy, X-ray diffraction, and X-ray photoelectron spectroscopy. Thermal conductivity, thermal stability and mechanical properties of PMMA and its composites were investigated by using TG, heat conduction analysis, and three-point bending strength test, respectively. The results showed that PPVS modified GO was prepared through non-covalent interaction, and composites with non-convalent phase interfaces were also obtained. With the addition of GO-PPVS, the three-point bending strength of GO-PPVS/PMMA increased to about 68 MPa. GO wrapped by PPVS could not form thermal conducting networks at the percolation thresholds. The increasing amount of PPVS prevented the formation of thermal conduction network, and decreased the thermal conductivity of the composites. The thermal stability of the composites was influenced by three main factors, and the total effect of the three factors on thermal stability illustrated a negative trend.
机译：氧化石墨烯（GO）通过pi-pi共轭相互作用被聚苯基乙烯基硅氧烷（PPVS）改性。通过原位本体聚合制备改性的GO / PMMA纳米复合材料。 GO的改性通过使用傅立叶变换红外光谱，X射线衍射和X射线光电子能谱来表征。通过TG，热传导分析和三点弯曲强度试验分别研究了PMMA及其复合材料的导热系数，热稳定性和力学性能。结果表明，通过非共价相互作用制备了PPVS改性的GO，并获得了具有非共价相界面的复合材料。通过添加GO-PPVS，GO-PPVS / PMMA的三点弯曲强度增加到约68 MPa。 PPVS包裹的GO无法在渗透阈值处形成导热网络。 PPVS的增加阻止了热传导网络的形成，并降低了复合材料的热导率。复合材料的热稳定性受三个主要因素的影响，这三个因素对热稳定性的总影响表明是一个负趋势。

著录项

  • 来源
    《Journal of nano research》 |2017年第2017期|191-203|共13页
  • 作者

    Li Hongyan; Song Limeng; Li Ruyi; Sun Cong; Fu Yongqiang; Yang Aiwu; Zhou Jianguo; Liu Hongli;

  • 作者单位

    Tianjin Chengjian Univ, Sch Mat Sci & Engn, Tianjin 300384, Peoples R China|Tianjin Key Lab Soft Soil Characterist & Engn Env, Tianjin 300384, Peoples R China;

    Tianjin Chengjian Univ, Sch Mat Sci & Engn, Tianjin 300384, Peoples R China|Tianjin Key Lab Soft Soil Characterist & Engn Env, Tianjin 300384, Peoples R China;

    Tianjin Chengjian Univ, Sch Mat Sci & Engn, Tianjin 300384, Peoples R China|Tianjin Key Lab Soft Soil Characterist & Engn Env, Tianjin 300384, Peoples R China;

    Tianjin Chengjian Univ, Sch Mat Sci & Engn, Tianjin 300384, Peoples R China|Tianjin Key Lab Soft Soil Characterist & Engn Env, Tianjin 300384, Peoples R China;

    Tianjin Chengjian Univ, Sch Mat Sci & Engn, Tianjin 300384, Peoples R China|Tianjin Key Lab Soft Soil Characterist & Engn Env, Tianjin 300384, Peoples R China;

    Tianjin Chengjian Univ, Sch Civil Engn, Tianjin 300384, Peoples R China|Tianjin Key Lab Soft Soil Characterist & Engn Env, Tianjin 300384, Peoples R China;

    Tianjin Chengjian Univ, Sch Sci, Tianjin 300384, Peoples R China;

    Tianjin Chengjian Univ, Sch Mat Sci & Engn, Tianjin 300384, Peoples R China|Tianjin Key Lab Soft Soil Characterist & Engn Env, Tianjin 300384, Peoples R China;

  • 收录信息
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Conjugation; PMMA; Graphene oxide; Interaction;

    机译：共轭;PMMA;氧化石墨烯;相互作用;

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号