Loads transfer across static electrical phase interfaces in silica aerogel/polymethyl methacrylate composites
Loads transfer across static electrical phase interfaces in silica aerogel/polymethyl methacrylate composites
复制标题
二氧化硅气凝胶/聚甲基丙烯酸甲酯复合材料中静电相界面上的载荷传递
DOI：
10.1016/j.compscitech.2016.12.004
复制
发表时间：
2017-01
影响因子：
9.1
通讯作者：
Liu Hongli
中科院分区：
文献类型：
--
作者：
Li Hongyan;Song Limeng;Fu Yongqiang;Wei Yufeng;Li Ruyi;Liu Hongli
制备了具有静电相界面的二氧化硅气凝胶（SA）/聚甲基丙烯酸甲酯（PMMA）复合材料，研究了界面间的载荷传递。SA/聚合物杂化复合材料的制备是基于SA中的正电荷与聚合物中的负电荷之间的相互作用。通过扫描电子显微镜（SEM）、拉曼光谱、热重分析（TGA）等手段对SA、聚合物和复合材料进行表征，并利用拉曼显微镜系统研究了相界面间的载荷传递。结果表明，SA/PMMA复合材料具有静电相界面和纳米孔结构。根据拉曼图谱的结果，具有共价键相界面的复合材料具有最有效的载荷传递能力。通过复合材料中静电相界面的载荷传递也是有效的。静电相界面是二氧化硅相和聚合物相之间的物理相互作用，具有较高的界面热阻，热通量可以保持在二氧化硅相中。这可以在对材料的整体导热率的变化尽可能小的情况下实现。
Silica aerogel (SA)/polymethyl methacrylate (PMMA) composites with static electrical phase interfaces were prepared to investigate loads transfer across the interfaces. Preparations of SA/polymer hybrid composites were based on the interaction between the positive charges in SA and negative charges in polymer. Characterizations of the SA, polymers, and composites were performed by scanning electron microscopy (SEM), Raman spectroscopy, thermogravimetric analysis (TGA), and so on. A Raman microscope system was employed for the investigation of loads transfer across phase interfaces. The results indicated that the SA/PMMA composites with static electrical phase interfaces and nanoporous structure were obtained. Based on the Raman mapping results, the composite with covalent bonding phase interfaces got the most efficient load transfer ability. The load transfer through the static electrical phase interfaces in composites is also effective. The static electrical phase interfaces that are physical interactions between the silica phase and polymer phase are with high interfacial thermal resistances, and the heat flux could be held in silica phase. It could be achieved with minimal changes to the overall thermal conductivity of the material as possible.
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影响因子：
56.9
作者：
A. Nitzan
通讯作者：
A. Nitzan
影响因子：
8.4
作者：
Almuhammadi, Khaled;Alfano, Marco;Lubineau, Gilles
通讯作者：
Lubineau, Gilles
影响因子：
5.1
作者：
Bruckmoser, Katharina;Resch, Katharina;Lucyshyn, Thomas
通讯作者：
Lucyshyn, Thomas
影响因子：
4.6
作者：
Linbo Shao;Jie Chen;Jian S. Dai;Hai-ming Chen;Jing‐hui Yang;Yong Wang;Chao-liang Zhang
通讯作者：
Linbo Shao;Jie Chen;Jian S. Dai;Hai-ming Chen;Jing‐hui Yang;Yong Wang;Chao-liang Zhang
DOI：
10.1002/polb.23509
发表时间：
2014-07
期刊：
Journal of Polymer Science Part B
影响因子：
--
作者：
J. M. Allan;Abdul Mumin;J. A. Wood;William Z. Xu;Wei Wu;P. Charpentier
通讯作者：
J. M. Allan;Abdul Mumin;J. A. Wood;William Z. Xu;Wei Wu;P. Charpentier