【摘 要】
：
In this work, GO core-shell structured hybrids were prepared by electrostatic self-assembly to prevent GO from self-agglomerating.To simplify and optimize the preparation of GO core-shell structured h
【出 处】
：
第二届中国国际复合材料科技大会 (CCCM-2)
论文部分内容阅读
In this work, GO core-shell structured hybrids were prepared by electrostatic self-assembly to prevent GO from self-agglomerating.To simplify and optimize the preparation of GO core-shell structured hybrids, SiO2 particleswere functionalized by a cationic polyelectrolyte named poly(diallyldimethylammoniumchloride) (PDDA) to have positive surface charges, followed by mixing with negatively charged GO.The large-area and compact encapsulation of GO on the surface of SiO2 was confirmed by SEM and TGA.
其他文献
SiCp/Al composite is widely used in the aerospace, electronics and automobile industries due to its ultrahigh strength and wear resistance.Surface integrity in the machining process can be influenced
SiCp/Al composites were fabricated by pressureless infiltration method.The phase, morphology and microstructure of as-prepared composites were characterized by Metallographic microscopy, X-Ray diffrac
By using the induced heating high temperature oxidation apparatus, the oxidation behaviors of matrix-modified carbon materials with ZrC, ZrB2 and ZrB2-SiC, ZrC-TaC at 1800 ℃ and 2100 ℃ in 1atm air and
The mechanical properties of C/C composites greatly depend on load transfer at fiber/matrix interface.The tow/matrix interfacial properties should be investigated to develop excellent C/C composites a
To utilize the full potential of carbon/carbon (C/C) composites as ultra-high temperature structural components in oxidizing atmosphere, the development of effective oxidation or ablation protection f
通过原位聚合,将胺基化改性碳包四氧化三铁(Fe3O4@C-NH2)纳米粒子引入到聚酰亚胺基体中,制备得到一种新颖的、介电性能增强的四氧化三铁(Fe3O4)/聚酰亚胺(PI)复合材料.通过水热反应制备得到Fe3O4,然后再次通过水热反应将交联的葡萄糖包覆到Fe3O4表面得到Fe3O4@C.核壳结构的Fe3O4@C-NH2是通过在碳层上引入氨基得到.
为满足日益增长的保护环境和节约资源的需求,探索生物基弹性体作为下一代的介电弹性体(DEs)是很有必要的.本项研究中,我们采用高介电常数(e r)的生物明胶/甘油(GG)弹性体作为介电弹性体的基体,用天然纤维素纤维中提取的纤维素纳米晶体(CNCs)来提高GG弹性体的力学强度.结果 表明,CNCs的大量羟基破坏了明胶分子之间的氢键,且与明胶分子形成了更强的氢键.CNCs与GG具有良好的界面附着力,从而
采用溶液法制备了羟基化碳纳米管(MWNTs-OH)/聚偏氟乙烯(PVDF)/聚甲基丙烯酸甲酯(PMMA)复合材料.对该复合材料的微观结构、结晶行为及介电性能进行了研究.XRD和DSC分析表明,MWNTs-OH和PMMA的加入有利于PVDF中的极性相晶体(β相和γ相)的形成,且随MWNTs-OH含量的增加,PVDF中极性相的质量分数也逐渐增加.这表明MWNTs-OH作为成核点有利于PVDF中极性相的
如何通过构筑复合材料的空间结构,在获得高介电常数的基础上兼具低介电损耗和低渗流阈值是目前high-k聚合物复合材料研究中的重要课题.本文以多壁碳纳米管(MWCNT)为导体,以酚酞基聚芳醚砜(cPES)/氰酸酯(CE) (w/w=10/90)混合体系为树脂基体,采用两步法制备了MWCNT/CE/10cPES复合材料,系统研究了其介电性能.研究发现,与MWCNT/CE复合材料相比,MWCNT/CE/1
导热聚合物在微电子封装和电气绝缘等领域获得广泛应用。在聚合物内形成稳定而有效的导热粒子通路，减少声子界面散射和热阻，强化声子传递是改善聚合物热导率的关键。本文分别从导热填料粒子、聚合物基体、界面结构性质、加工工艺等角度探讨了提高和改善聚合物导热性能的方法和途径。