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Composites recycling solutions for the aviation industry

Science China(Technological Sciences) 2017年第9期60卷 1291-1300页

作者： WONG Kok rudd chris PICKERING Steve LIU XiaoLing Ningbo Nottingham International Academy for the Marine Economy and Technology University of Nottingham Ningbo China Ningbo 315100 China Ningbo Nottingham New Materials Institute University of Nottingham Ningbo China Ningbo 315100 China Division of Materials Mechanics and Structures Faculty of Engineering University of Nottingham Nottingham UK

Ten of thousands of aircraft are expected to retire in the next 20 *** manufacturers are gearing up for a new wave of recycling challenges as these aircrafts contain significant higher amount of carbon fibre reinforced polymer composite,which cannot be recycled by the conventional processes designed for metallic *** manufacturers have been working with the recycling industry to limit unsustainable dismantling that is harmful to the environment and the potential liability risk of re-entry of un-certified salvaged parts back to the aviation *** organised recycling network and procedures have already been set up for the conventional metallic alloys and will soon be required to include the composite *** paper reports the existing aircraft recycling practice and reviews the key recycling technologies for thermoset *** consumptions of these technologies are sought from the literature and are reported in this *** in development of reuse options for the recycled fibre is also included with discussion of their advantages and *** challenge of working with the fluffy fibre is considered and the benefit of fibre alignment is highlighted for encouraging a widespread use of the fibre.

关键词： composite recycling carbon fibre aviation

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典型结构功能一体化复合材料的设计与制备技术

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复合材料学报 2024年第9期41卷 4457-4477页

作者：蒋民强胡东源董晨昊 PIERCE Robert rudd chris 刘晓玲益小苏宁波诺丁汉大学理工学院宁波315100 长三角碳纤维及复合材料技术创新中心常州213126 丹麦技术大学风力与能源系统学院科恩斯林比2800

在碳纤维增强树脂基复合材料轻量化与结构性能持续提高的前提下,同时附加其特定的功能,尤其是在不损失、甚至提升其层间断裂韧性的情况下,不仅可以弥补结构复合材料天然的缺陷,例如树脂基体的电绝缘性,也可以使其满足特定产品的要求,例... 详细信息

在碳纤维增强树脂基复合材料轻量化与结构性能持续提高的前提下,同时附加其特定的功能,尤其是在不损失、甚至提升其层间断裂韧性的情况下,不仅可以弥补结构复合材料天然的缺陷,例如树脂基体的电绝缘性,也可以使其满足特定产品的要求,例如高刚度兼具一定的吸声降噪特性等。显然,对于航空航天这样的尖端应用领域,这种功能附加或结构功能一体化的复合材料技术对航空航天技术的未来发展至关重要。本文介绍了4种具有典型性的结构功能一体化复合材料的设计、制备与性能研究,分别是基于层间功能化插层和基于内织导电纬纱的导电增韧一体化复合材料及多级孔碳化棉纤维填充蜂窝/微穿孔面板的夹芯复合材料结构和编织布/无纺纤维毡复合材料片材折叠成型的结构吸声一体化复合材料。前两种材料分别通过在复合材料富树脂的层间插入导电功能化插层和在复合材料内引入贯通整个材料的导电纬纱网络实现了复合材料的导电性能与层间韧性的同步提高,而后两种材料则分别通过多级孔结构的碳化棉纤维材料填充蜂窝/微穿孔面板夹芯技术和编织布/无纺纤维毡复合材料片材的折叠技术实现了良好的吸声性能等,以展示多尺度、多层次结构设计和制备技术在结构复合材料功能化集成和结构功能一体化方面的应用。

关键词：碳纤维增强复合材料多功能复合材料导电增韧吸声

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The effect of 3-aminopropyltriethoxysilanetreatment on recycled carbon fibres reinforced composites

The effect of 3-aminopropyltriethoxysilanetreatment on recyc...

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第二十一届全国复合材料学术会议（NCCM-21)

作者： Chenkai Zhu Saihua Li Xiaoye Cong chris rudd Xiaoling Liu University of Nottingham Ningbo China James Cook University

In this work, the effect of silane coupling agent on the mechanical behaviour of recycled carbon fibre reinforced bio-based epoxy composite were studied. The surface of recycled carbon fibre was treated by 3-aminopropyltriethoxysilane（APS） with agent concentration from 0 wt.% to 8 wt.%,tensile and flexural properties characterisation were performed to observe mechanical behaviour of the specimens, and morphology of fracture surface after mechanical test was also studied under a scanning electron microscope. The tensile and flexural strength of composites were found to increase with a suitable amount of silane agent（＜ 4 wt.%）, which was attributed to the cross-linking and curing reaction between amino group of APS and epoxy matrix, improving the interfacial bonding.

关键词： Recycled carbon fibres Bio-based epoxy Silane coupling agent Mechanical properties

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The Effects of Fe2O3and B2O3on the Glass Structural, Thermal, in VitroDegradation Properties of Phosphate Based Glasses

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New Journal of Glass and Ceramics 2017年第4期7卷 100-115页

作者： Chenkai Zhu Jinsong Liu Songling Huang Lizhe He Xiaoye Cong Chao Tan chris rudd Xiaoling Liu Ningbo Nottingham International Academy for the Marine Economy and Technology The University of Nottingham Ningbo ChinaNingboChina Ningbo Nottingham New Materials Institute The University of Nottingham Ningbo ChinaNingboChina Department of Technology Sinoma Co.Ltd.NanjingChina

Currently, phosphate based glasses have been potential future biomaterial for medical application due to excellent cytocompatibility and fully bioresorbability. In this study, phosphate based glass system with composition of 48P2O5-12B2O3-(25-X)MgO-14CaO-1Na2O-(X)Fe2O3 (X = 6, 8, 10) and 45P2O5-(Y)B2O3-(32-Y)MgO-14CaO-1Na2O-8Fe2O3 (Y = 12, 15, 20), was prepared via a melting quenching process. The effect of replacing MgO with Fe2O3 and B2O3 on the structural, thermal, degradation properties of phosphate based glass was investigated. Fourier Transform Infrared (FTIR) spectroscopy and Raman spectroscopy analysis confirmed the polymerisation of phosphate based glass network with addition of Fe2O3, thus the processing window was observed to increase whilst the dissolution rate was reduced, attributed to the formation of Fe-O-P cross-link. As the effect on the glass structure stability was demonstrated by both B2O3 and MgO, the nonlinear variation of thermal stability and degradation behaviour was observed for glass system with substitution of MgO by B2O3. However, due to the lower dissolution rate of glass system when compared to the biocompatible phosphate based glass in preliminary study, the expected cytocompatibility could be confirmed in the downstream activities.

关键词： Phosphate Based Glass Boron Iron Thermal Properties Degradation Study

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Phosphate Glass Fibre Composites for Bone Repair

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Journal of Bionic Engineering 2009年第4期6卷 318-323页

作者： Andrew J.Parsons Ifty Ahmed Papia Haque Ben Fitzpatrick Muhammad I.K.Niazi Gavin S.Walker chris D.rudd Division of Materials Mechanics & StructuresFaculty of EngineeringUniversity of NottinghamNottingham NG7 2RDUK

We investigate high-modulus degradable materials intended to replace metals in biomedical *** are typically composites comprising a polylactide(PLA)matrix reinforced with phosphate glass fibres,which provide reinforcement similar to E-glass but are entirely degradable in water to produce,principally,calcium *** have made composites using a variety of fibre architectures,from non-woven random mats to unidirectional fibre *** properties in the region of 30 GPa modulus and 350 MPa strength have been achieved-directly comparable to quoted values for human cortical *** collaboration with other groups we have begun to consider the development of foamed systems with structures mimicking cancellous bone and this has shown significant *** fibres in these foamed structures provide improved creep resistance and reinforcement of the pore *** date the materials have exhibited excellent cellular responses in vitro and further studies are due to include consideration of the surface character of the materials and the influence of this on cell interaction, both with the composites and the glass fibres themselves,which show promise as a standalone porous scaffold.

关键词： biocomposites phosphate glass PLA porous bone repair

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