Advanced Nanocomposites最新文献_第3页

Biocompatible nacre-like boron nitride/biopolymer nanocomposites for thermal management 用于热管理的生物相容性类氮化硼/生物聚合物纳米复合材料

Advanced Nanocomposites

Pub Date : 2025-09-24 DOI: 10.1016/j.adna.2025.09.003

Tairan Yang , Yingxin Zhang , Jiemin Wang , Yuchen Liu , Weiwei Lei , Dan Liu

Thermally conductive materials (TCMs), especially electrically insulating polymer nanocomposites, have attracted considerable attention for thermal management applications, driven by the increasing heat generation in advanced processors and integrated circuits. While conventional polymer nanocomposites offer excellent thermal conductivity and mechanical performance, their dependence on non-biodegradable plastics or resins poses significant environmental concerns. In contrast, chitosan and gelatin are biodegradable, cost-effective and represent promising sustainable alternatives. In this study, thermally conductive nanocomposite films were fabricated by vacuum-assisted filtration (VAF) of functionalized boron nitride nanosheets (FBN) combined with gelatin or chitosan. The strong interaction between the amino groups on the boron nitride surface and the biopolymer chains facilitated the formation of a robust network, resulting in outstanding thermal conductivity. Notably, the composite film containing 30 wt% FBN with chitosan exhibited an impressive in-plane thermal conductivity (κ) of 52.52 W·m⁻¹ ·K⁻¹ . Additionally, the self-assembled nacre-like structure enables the nanocomposite films to achieve an impressive tensile strength of 129.3 ± 0.4 MPa. Importantly, in vitro cell viability assays showed over 80 % cell survival, confirming the excellent biocompatibility of these films. The newly developed nanocomposite films demonstrate non-cytotoxicity, biocompatibility and outstanding thermal conductivity, positioning them as a promising nanocomposite heat sink for future green and sustainable thermal management applications.

随着先进处理器和集成电路中热量产生的增加，导热材料，特别是电绝缘聚合物纳米复合材料，在热管理应用中引起了相当大的关注。虽然传统的聚合物纳米复合材料具有优异的导热性和机械性能，但它们对不可生物降解塑料或树脂的依赖造成了严重的环境问题。相比之下，壳聚糖和明胶是可生物降解的，具有成本效益，是有前途的可持续替代品。本研究采用真空辅助过滤（VAF）的方法，将功能化氮化硼纳米片（FBN）与明胶或壳聚糖结合制备了导热纳米复合薄膜。氮化硼表面的氨基与生物聚合物链之间的强相互作用促进了坚固网络的形成，从而产生了出色的导热性。值得注意的是，含有30 wt% FBN和壳聚糖的复合膜表现出惊人的面内导热系数（κ）为52.52 W·m⁻¹ ·K⁻¹ 。此外，自组装的珍珠状结构使纳米复合膜的抗拉强度达到129.3±0.4 MPa。重要的是，体外细胞活力测定显示超过80% %的细胞存活率，证实了这些膜的良好生物相容性。新开发的纳米复合膜具有非细胞毒性、生物相容性和出色的导热性，使其成为未来绿色和可持续热管理应用的有前途的纳米复合散热器。

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引用次数: 0

Recent advances in thermal properties of graphene/hexagonal boron nitride heterostructures and their polymer nanocomposites: A review 石墨烯/六方氮化硼异质结构及其聚合物纳米复合材料热性能研究进展

Advanced Nanocomposites

Pub Date : 2025-09-18 DOI: 10.1016/j.adna.2025.09.001

Youzhe Yang , Huanzhi Song , Ning Wei , Jie Yang , Yingyan Zhang

Efficient thermal management has become increasingly crucial for modern electronic devices, driven by unstoppable trends toward miniaturization, higher power densities and multifunctional integration. Effective thermal interface materials (TIMs) are essential for mitigating heat accumulation and ensuring reliable device performance and long lifespan. Graphene and hexagonal boron nitride (h-BN) have attracted tremendous attention as high-performance nanofillers in polymer composites due to their exceptionally high thermal conductivity (TC) and mechanical strength. Recent research has increasingly focused on polymer nanocomposites reinforced by graphene/h-BN (Gr/h-BN) heterostructures, highlighting significant synergistic improvements in their thermal and mechanical properties. These heterostructures synergistically combine the exceptional TC and mechanical strength of graphene with the outstanding electrical insulation and thermal stability of h-BN. This review comprehensively analyzes recent advancements in graphene, h-BN and their polymer-based nanocomposites. It delves into the influence of structural configurations, defect engineering, functionalization strategies, doping methods, isotopic modifications and mechanical strain on their thermal performance. Furthermore, it also explores several innovative strategies to improve interfacial thermal transport in polymer nanocomposites, including hybrid filler integration, surface functionalization, filler alignment and advanced manufacturing methods. It is hoped that this review can offers useful insights and practical guidelines for designing and developing next-generation materials for advanced thermal management in high-performance electronic applications.

在不可阻挡的小型化、高功率密度和多功能集成趋势的推动下，高效的热管理对现代电子设备变得越来越重要。有效的热界面材料（TIMs）对于减少热量积累和确保可靠的设备性能和长寿命至关重要。石墨烯和六方氮化硼（h-BN）由于其超高的导热性和机械强度，作为高分子复合材料的高性能纳米填料受到了广泛的关注。最近的研究越来越关注石墨烯/h-BN异质结构增强的聚合物纳米复合材料，突出了其热性能和力学性能的显着协同改善。这些异质结构协同结合了石墨烯优异的TC和机械强度与h-BN优异的电绝缘性和热稳定性。本文综述了近年来石墨烯、氢氮化硼及其聚合物基纳米复合材料的研究进展。深入研究了结构构型、缺陷工程、功能化策略、掺杂方法、同位素修饰和机械应变对其热性能的影响。此外，本文还探讨了几种改善聚合物纳米复合材料界面热传递的创新策略，包括混合填料集成、表面功能化、填料排列和先进的制造方法。希望本文能够为高性能电子应用中用于先进热管理的下一代材料的设计和开发提供有用的见解和实用指南。

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引用次数: 0

Biomass-derived porous carbon-based composites for electromagnetic wave absorption 生物质衍生的电磁波吸收多孔碳基复合材料

Advanced Nanocomposites

Pub Date : 2025-08-20 DOI: 10.1016/j.adna.2025.08.002

Yuguang He , Sijia Hao , Yubin Chen , Shuangqiang Shi , Junpeng Tian , Cheng Yang

Electromagnetic wave-absorbing (EMWA) materials show great potential for radar stealth, electromagnetic shielding and advanced electronics. Biomass-derived porous carbon (BPC)-based composites have emerged as highly attractive EMWA materials due to their renewable sources, abundant availability, low cost, scalable production and highly tunable structures. This review provides a systematic summary of recent advancements in BPC-based composites for EMWA applications. First, the fundamental principles of microwave absorption are briefly outlined. Subsequently, common pretreatment methods for BPC-based materials are reviewed. The progress in BPC-based composites sourced from plants, animals and microorganisms is comprehensively examined, with a focus on the synergistic effects of micro/nanostructural engineering and composition optimization on their EMWA performance. Finally, current challenges and limitations of BPC-based EMWA materials are critically analyzed, along with prospects for future development.

电磁波吸收材料在雷达隐身、电磁屏蔽和先进电子学等方面显示出巨大的潜力。生物质衍生多孔碳（BPC）基复合材料由于其可再生资源、丰富的可用性、低成本、可扩展的生产和高度可调的结构而成为极具吸引力的EMWA材料。本文综述了基于bpc的EMWA复合材料的最新进展。首先，简述了微波吸收的基本原理。随后，对bpc基材料的常用预处理方法进行了综述。综述了植物、动物和微生物来源的bpc基复合材料的研究进展，重点研究了微纳米结构工程和成分优化对其EMWA性能的协同效应。最后，对目前bpc基EMWA材料面临的挑战和局限性进行了批判性分析，并对未来的发展进行了展望。

引用次数: 0

Bio-based, phase-change MXene/CNT foams for integrated electromagnetic interference shielding, thermal management and infrared stealth 用于集成电磁干扰屏蔽、热管理和红外隐身的生物基相变MXene/CNT泡沫

Advanced Nanocomposites

Pub Date : 2025-08-13 DOI: 10.1016/j.adna.2025.08.001

Lishuo Han, Tao Luo, Hailan Kang, Genshi Liu, Qinghong Fang

The surge in wireless technologies and electronic devices has intensified the demand for next-generation materials with integrated electromagnetic interference (EMI) shielding. Yet, it remains a major challenge to integrate thermal insulation, thermal management and infrared stealth into a single system. Herein, bio-based Eucommia ulmoides gum (EUG) – a natural trans-1,4-polyisoprene rubber with high crystallinity and elasticity – was used to develop porous foams via a salt-sacrificial template method, guided by synergy strategy combining multiple working mechanisms. The synergistic conductive fillers, i.e. multi-walled carbon nanotubes (CNTs) and MXene, were concentrated within the EUG skeleton and on the surface. This arrangement facilitates the formation of an efficient conductive network, thereby enhancing the reflection of microwaves and infrared radiation. Additionally, the multi-level pores lead to multiple reflections and absorptions of EMI, while also impeding the heat conduction process. Meanwhile, EUG with phase change capability further regulates the surface temperature via heat absorption. Ultimately, EUG/CNT/MXene (ECM) foam with a thickness of 2 mm exhibited a shielding effectiveness (SE) of 49.7 dB in the X-band, a thermal conductivity of 0.15 W·m⁻¹·K⁻¹, a latent heat of 36.8 J·g⁻¹ and a temperature difference of 30.25 °C between opposite surfaces. Compared with EUG foam, ECM foam achieved a 28 % lower infrared emissivity and an 825 % higher compression strength. The temperature difference between the handheld foam and the environment was only 2.8 °C, indicating superior infrared stealth. Furthermore, the ECM foam demonstrated excellent phase change stability during thermal cycling. In the durability test, the SE value of ECM retained 83.5 % of its initial SE. This work provides a novel strategy for designing multifunctional EMI shielding materials.

无线技术和电子设备的激增加剧了对具有集成电磁干扰（EMI）屏蔽的下一代材料的需求。然而，将隔热、热管理和红外隐身集成到一个系统中仍然是一个重大挑战。本研究以具有高结晶度和高弹性的天然反式-1,4-聚异戊二烯橡胶——生物基杜仲胶（EUG）为研究材料，采用盐牺牲模板法制备多孔泡沫，协同策略结合多种工作机制。协同导电填料，即多壁碳纳米管（CNTs）和MXene，集中在EUG骨架内部和表面。这种排列有利于形成有效的导电网络，从而增强对微波和红外辐射的反射。此外，多层孔隙导致电磁干扰的多次反射和吸收，同时也阻碍了热传导过程。同时，具有相变能力的EUG通过吸热进一步调节表面温度。最终，厚度为2 mm的EUG/CNT/MXene （ECM）泡沫在x波段的屏蔽效能（SE）为49.7 dB，导热系数为0.15 W·m−1·K−1，潜热为36.8 J·g−1，对表面温差为30.25℃。与EUG泡沫相比，ECM泡沫的红外发射率降低了28% %，抗压强度提高了825 %。手持泡沫与环境之间的温差仅为2.8°C，表明具有良好的红外隐身性。此外，ECM泡沫在热循环过程中表现出良好的相变稳定性。在耐久性试验中，ECM的SE值保持了初始SE的83.5 %。本研究为多功能电磁干扰屏蔽材料的设计提供了一种新的思路。

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引用次数: 0

Unlocking functional potentials: Nanofibril networks in organic semiconductors 释放功能潜能：有机半导体中的纳米纤维网络

Advanced Nanocomposites

Pub Date : 2025-05-22 DOI: 10.1016/j.adna.2025.05.001

Wenkai Zhong , Siyi Wang , Feng Liu

Organic semiconductors, including π-conjugated polymers and small molecules, find potential applications across a wide range of scenarios, including organic field-effect transistors (OFETs), organic photovoltaics (OPVs), organic photodetectors (OPDs), and more. A crucial factor in optimizing the performance of these devices is the charge carrier transport properties, which is closely related with the structural organization of organic semiconductors at various length scales. The fibrillar texture, typically comprising structures with tens of nanometers in width and extending into microscale in length, is an important morphology linked to high-performance outcomes. These fibrils often exhibit semi-ordered domain and are well-dispersed within amorphous matrices, enabling efficient charge transport pathways. This review summarizes the origins and advantages of optoelectronic fibrillar thin films, elucidating their role in enhancing device performance. We further highlight how fibrillar structures not only boost performance in OFETs, OPVs and OPDs, but also offer unique advantages for practical device applications, such as stretchable electronics and polarization-sensitive detectors. Finally, we identify key challenges and propose future research directions, including the transition from solution assembly into fibrils, cooperative interactions with amorphous domains, advanced structural characterization, scalability and industrial potential, and emerging functionalities. This review aims to advance the understanding of fibrillar morphology, positioning it as a key factor in achieving better performance in the field of organic semiconductors.

有机半导体，包括π共轭聚合物和小分子，在广泛的场景中找到了潜在的应用，包括有机场效应晶体管（ofet），有机光伏（opv），有机光电探测器（opd）等等。优化这些器件性能的一个关键因素是载流子输运特性，这与有机半导体在不同长度尺度上的结构组织密切相关。纤维状结构通常包括数十纳米宽的结构，并延伸到微尺度的长度，是与高性能结果相关的重要形态。这些原纤维通常表现出半有序结构域，并在无定形基质中分散良好，从而实现有效的电荷传输途径。本文综述了光电子纤维薄膜的起源和优点，阐述了光电子纤维薄膜在提高器件性能方面的作用。我们进一步强调纤维结构不仅提高了ofet， opv和opd的性能，而且还为实际器件应用提供了独特的优势，例如可拉伸电子和极化敏感探测器。最后，我们确定了关键挑战并提出了未来的研究方向，包括从溶液组装到原纤维的转变，与非晶畴的合作相互作用，先进的结构表征，可扩展性和工业潜力，以及新兴功能。本文旨在促进对纤维形态的理解，将其定位为在有机半导体领域获得更好性能的关键因素。

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引用次数: 0

Advancements in polyurea-based nanocomposites: Properties, applications and challenges 聚氨酯基纳米复合材料的进展：性能、应用和挑战

Advanced Nanocomposites

Pub Date : 2025-04-04 DOI: 10.1016/j.adna.2025.04.001

Kangbo Zhao , Xue Gong , Chunyan Zhang , Jiabin Dai , Qingshi Meng

Polyurea and its composites represent a class of multifunctional materials with significant potential for diverse applications. This review offers a comprehensive overview of polyurea and its nanocomposites. It starts by introducing the basic structure, synthesis methods and key properties of polyurea. Subsequently, the review discusses the preparation of polyurea nanocomposites and the optimization of their performance. Incorporating nanofillers into polyurea can significantly enhance the mechanical properties, self-healing capabilities and corrosion resistance of polyurea. Interface engineering between polyurea and nanomaterials is essential for improving the compatibility and maximizing the reinforcement. The review further explores the applications of polyurea nanocomposites in construction, police protection industry and rail transportation. Incorporating nanofillers and engineering the interface should markedly enhance polyurea performance and open pathways for the development of next generation materials.

聚脲及其复合材料是一类具有多种应用潜力的多功能材料。本文综述了聚脲及其纳米复合材料的研究进展。首先介绍了聚脲的基本结构、合成方法和主要性能。随后，综述了聚脲纳米复合材料的制备及其性能的优化。在聚脲中加入纳米填料可以显著提高聚脲的力学性能、自愈能力和耐腐蚀性。聚脲与纳米材料之间的界面工程是提高材料相容性和增强性能的关键。综述了聚脲纳米复合材料在建筑、公安、轨道交通等领域的应用。加入纳米填料和工程界面将显著提高聚脲的性能，并为下一代材料的开发开辟道路。

引用次数: 0

Preparation of rhodamine 6G dye coated nano-coal fly ash nanocomposite: Novel forensic powder for latent fingerprint detection 罗丹明6G染料包覆纳米煤粉煤灰纳米复合材料的制备：新型指纹潜行检测法医学粉末

Advanced Nanocomposites

Pub Date : 2025-03-28 DOI: 10.1016/j.adna.2025.03.003

Eswaran Prabakaran, Kriveshini Pillay

This study reports on a novel powder-based rhodamine 6G dye coated nano-coal fly ash (Rh6G/nano-CFA) nanocomposite that was used in a powder dusting technique to develop latent fingerprint (LFP) images under day light conditions. Several instrumental methods, including UV–visible spectroscopy (UV), Fourier-transform infrared spectroscopy (FTIR), X-ray powder diffraction (XRD) and scanning electron microscopy (SEM) with energy-dispersive X-ray spectrometry (EDS) were used to characterize the Rh6G/nano-CFA nanocomposite. In order to enhance the established latent fingerprint detection on a variety of porous and non-porous substrates using the powder dusting approach in daylight conditions, Rh6G dye was loaded onto the nano-CFA. According to the data, clear LFPs images with ridge patterns in levels 2 and 3 were examined for personal identification using Rh6G/nano-CFA nanocomposite powder with powder dusting technique on a variety of substrates, including aluminum foil, glass slides, tiles, paper money, plastic bottles and tin cans. Aged LFPs images were also effectively developed using this Rh6G/nano-CFA nanocomposite on the aluminum foil substrate with minimal background contrast. Thus, the Rh6G/nano-CFA nanocomposite demonstrated that its excellent contrast and high sensitivity made it a promising powder for use in practical forensic science applications.

本研究报道了一种新型粉末基罗丹明6G染料包覆纳米煤粉煤灰（Rh6G/nano-CFA）纳米复合材料，该材料用于粉末喷涂技术在日光条件下显影潜在指纹（LFP）图像。采用紫外-可见光谱（UV）、傅里叶变换红外光谱（FTIR）、x射线粉末衍射（XRD）、扫描电子显微镜（SEM）和能量色散x射线光谱（EDS）等仪器方法对Rh6G/纳米cfa纳米复合材料进行了表征。为了增强在多种多孔和非多孔衬底上的潜在指纹检测，在日光条件下使用粉末粉尘方法，将Rh6G染料加载到纳米cfa上。根据数据，利用Rh6G/nano-CFA纳米复合粉末和粉末喷涂技术，在铝箔、玻片、瓦片、纸钱、塑料瓶和锡罐等多种基材上检测了具有2级和3级脊纹的清晰LFPs图像，用于个人识别。使用该Rh6G/纳米cfa纳米复合材料在铝箔衬底上以最小的背景对比度有效地显示了老化的lfp图像。因此，Rh6G/nano-CFA纳米复合材料证明了其优异的对比度和高灵敏度使其成为一种有希望用于实际法医科学应用的粉末。

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引用次数: 0

Graphene-functionalized textile composites for wearable Joule heating applications 用于可穿戴焦耳加热的石墨烯功能化纺织复合材料

Advanced Nanocomposites

Pub Date : 2025-03-13 DOI: 10.1016/j.adna.2025.03.001

Omar Faruk , Abbas Ahmed , Ashfaqul Hoque Khadem , Lu Jia , Luyi Sun

Thermal comfort is essential for maintaining physiological well-being, with textile materials traditionally serving as the primary medium for regulating heat exchange between the body and its environment. However, conventional textiles often fall short of maintaining optimal thermal balance. So, there is an increasing demand for advanced thermoregulation systems that can effectively reduce heat loss and enhance warmth, ensuring consistent comfort. Recent research has highlighted the promise of advanced functional materials, especially graphene and its composites, for modifying textiles to improve thermal properties. This article comprehensively reviews recent advancements in graphene-functionalized textile composites, focusing on their applications in wearable Joule heaters designed for personalized thermal comfort or thermal therapy. Various graphene-functionalized textile composites are reviewed from the perspectives of material properties, processing strategies and device fabrication methods. Key challenges and future opportunities are summarized for graphene-functionalized textile-based Joule heaters as innovative solutions in wearable thermal regulation.

热舒适对于维持生理健康至关重要，传统上纺织材料是调节身体和环境之间热交换的主要介质。然而，传统的纺织品往往不能保持最佳的热平衡。因此，对先进的温度调节系统的需求不断增加，这些系统可以有效地减少热量损失，增强温暖，确保一致的舒适性。最近的研究强调了先进功能材料的前景，特别是石墨烯及其复合材料，用于修饰纺织品以改善热性能。本文全面综述了石墨烯功能化纺织复合材料的最新进展，重点介绍了石墨烯功能化纺织复合材料在个性化热舒适或热治疗的可穿戴焦耳加热器中的应用。从材料性能、加工策略和器件制造方法等方面综述了各种石墨烯功能化纺织复合材料。总结了石墨烯功能化纺织品焦耳加热器作为可穿戴热调节创新解决方案的主要挑战和未来机遇。

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引用次数: 0

Advancing polymer nanocomposites through mechanochemical approaches 通过机械化学方法推进聚合物纳米复合材料

Advanced Nanocomposites

Pub Date : 2025-03-12 DOI: 10.1016/j.adna.2025.03.002

Linh Chi Tran , Xiao Su , Huynh Nguyen , Ly Bao Truc La , Philip Adu , Qiong Jia , Ivan Lee , Hsu-Chiang Kuan , Xianhu Liu , Jun Ma

Mechanochemical approaches have recently garnered significant interests in the development of polymer nanocomposites due to their effectiveness, environmental sustainability, scalability and simplicity. Most of previous reviews on this topic focus on either nanomaterial synthesis or specific methods, without fully exploring how these techniques affect the interfacial interactions and thus the morphology and properties of polymer nanocomposites. This review provides a comprehensive analysis of mechanochemical methods, encompassing both established techniques (e.g., ball milling and ultrasonication) and newer approaches (e.g., solid-state shear milling, focused ultrasonication or plasma-assisted mechanochemical mixing). It highlights the benefits, drawbacks and recent innovations of these methods regarding the dispersion of nanofillers within and their compatibility with polymer matrices. This review also provides a future perspective on integrating artificial intelligence and sustainable practices into mechanochemical processes, while proposing solutions to tackle the challenge of broad size distribution of nanofillers. We aim to foster the widespread adoption of mechanochemical processes across diverse fields, from laboratory to industrial scales.

机械化学方法由于其有效性、环境可持续性、可扩展性和简单性，最近在聚合物纳米复合材料的开发中引起了极大的兴趣。以往的研究大多集中在纳米材料的合成或具体方法上，而没有充分探讨这些技术如何影响界面相互作用，从而影响聚合物纳米复合材料的形态和性能。本文对机械化学方法进行了全面的分析，包括现有的技术（如球磨和超声）和较新的方法（如固态剪切铣削、聚焦超声或等离子体辅助机械化学混合）。它强调了这些方法的优点，缺点和最近的创新，关于纳米填料在聚合物基质中的分散和它们的相容性。这篇综述还提供了将人工智能和可持续实践整合到机械化学过程中的未来前景，同时提出了解决纳米填料宽尺寸分布挑战的解决方案。我们的目标是促进机械化学过程在不同领域的广泛采用，从实验室到工业规模。

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引用次数: 0

Advanced Nanocomposites

Pub Date : 2025-01-01

引用次数: 0