scholarly journals Recent Progress in Carbon Fiber Reinforced Polymers Recycling: A Review of Recycling Methods and Reuse of Carbon Fibers

Materials ◽  
2021 ◽  
Vol 14 (21) ◽  
pp. 6401
Author(s):  
José Antonio Butenegro ◽  
Mohsen Bahrami ◽  
Juana Abenojar ◽  
Miguel Ángel Martínez
Keyword(s):  
Composite Materials ◽  
Carbon Fiber ◽  
Carbon Fibers ◽  
Waste Recycling ◽  
Fiber Reinforced Polymers ◽  
Chemical Recycling ◽  
Fiber Reinforced ◽  
Mechanical Recycling ◽  
Cfrp Composite ◽  
Carbon Fiber Reinforced

The rapid increase in the application of carbon fiber reinforced polymer (CFRP) composite materials represents a challenge to waste recycling. The circular economy approach coupled with the possibility of recovering carbon fibers from CFRP waste with similar properties to virgin carbon fibers at a much lower cost and with lower energy consumption motivate the study of CFRP recycling. Mechanical recycling methods allow the obtention of chopped composite materials, while both thermal and chemical recycling methods aim towards recovering carbon fibers. This review examines the three main recycling methods, their processes, and particularities, as well as the reuse of recycled carbon fibers in the manufacture of new composite materials.

scholarly journals Fabrication and Characterization of Carbon-Fiber-Reinforced Polymer–FeSi Composites with Enhanced Magnetic Properties

Polymers ◽  
2020 ◽  
Vol 12 (10) ◽  
pp. 2325
Author(s):  
Alexandre Tugirumubano ◽  
Sun Ho Go ◽  
Hee Jae Shin ◽  
Lee Ku Kwac ◽  
Hong Gun Kim
Keyword(s):  
Tensile Strength ◽  
Magnetic Properties ◽  
Carbon Fiber ◽  
Flexural Strength ◽  
Fiber Reinforced Polymers ◽  
Fiber Reinforced ◽  
Magnetic Composites ◽  
Carbon Fiber Reinforced Polymers ◽  
Cfrp Composite ◽  
Carbon Fiber Reinforced

In this work, we aimed to manufacture and characterize carbon-fiber–polymer–metal-particles magnetic composites with a sandwichlike structure. The composites were manufactured by stacking the plain woven carbon fiber prepregs (or carbon-fiber-reinforced polymers (CFRP)) and layers of the FeSi particles. The layer of FeSi particles were formed by evenly distributing the FeSi powder on the surface of carbon fiber prepreg sheet. The composites were found to have better magnetic properties when the magnetic field were applied in in-plane (0°) rather than in through-thickness (90°), and the highest saturation magnetization of 149.71 A.m2/kg was achieved. The best inductance and permeability of 12.2 μH and 13.08 were achieved. The composites obviously exhibited mechanical strength that was good but lower than that of CFRP composite. The lowest tensile strength and lowest flexural strength were 306.98 MPa and 855.53 MPa, which correspond to 39.58% and 59.83% of the tensile strength and flexural strength of CFRP (four layers), respectively.

scholarly journals Thermoelastic Investigation of Carbon-Fiber-Reinforced Composites Using a Drop-Weight Impact Test

2020 ◽  
Vol 11 (1) ◽  
pp. 207
Author(s):  
Zahra Andleeb ◽  
Sohail Malik ◽  
Hassan Abbas Khawaja ◽  
Anders Samuelsen Nordli ◽  
Ståle Antonsen ◽  
...  
Keyword(s):  
Composite Materials ◽  
Carbon Fiber ◽  
Infrared Thermography ◽  
Impact Test ◽  
Heat Diffusion ◽  
Fiber Reinforced Polymers ◽  
Fiber Reinforced ◽  
Drop Weight ◽  
Weight Impact ◽  
Carbon Fiber Reinforced

Composite materials are becoming more popular in technological applications due to the significant weight savings and strength offered by these materials compared to metallic materials. In many of these practical situations, the structures suffer from drop-impact loads. Materials and structures significantly change their behavior when submitted to impact loading conditions compared to quasi-static loading. The present work is devoted to investigating the thermal process in carbon-fiber-reinforced polymers (CFRP) subjected to a drop test. A novel drop-weight impact test experiment is performed to evaluate parameters specific to 3D composite materials. A strain gauge rosette and infrared thermography are employed to record the kinematic and thermal fields on the composites’ surfaces. This technique is nondestructive and offers an extensive full-field investigation of a material’s response. The combination of strain and infrared thermography data allows a comprehensive analysis of thermoelastic effects in CFRP when subjected to impacts. The experimental results are validated using numerical analysis by developing a MATLAB® code to analyze whether the coupled heat and wave equation phenomenon exists in a two-dimensional polar coordinate system by discretizing through a forward-time central-space (FTCS) finite-difference method (FDM). The results show the coupling has no significant impact as the waves generated due to impact disappears in 0.015 s. In contrast, heat diffusion happens for over a one-second period. This study demonstrates that the heat equation alone governs the CFRP heat flow process, and the thermoelastic effect is negligible for the specific drop-weight impact load.

Advances in Research of Carbon Fiber Reinforced Composite Materials

2011 ◽  
Vol 332-334 ◽  
pp. 1607-1610
Author(s):  
Yun Yun Xu ◽  
Tao Zhang ◽  
Zhen Rong Lin ◽  
Shan Dan Zhou ◽  
Xin Xu
Keyword(s):  
Composite Materials ◽  
Carbon Fiber ◽  
Carbon Fibers ◽  
Fiber Reinforced ◽  
Structure And Property ◽  
Reinforced Composite ◽  
Low Weight ◽  
Carbon Fiber Reinforced ◽  
Research Structure ◽  
Reinforcement And Toughening

Carbon fibers combine low weight and exceptional mechanical properties,making them ideal reinforcements forpolymer composite materials. An attempt has been made to review and analyze the development and problems made during last few decades in the field of carbon fiber reinforced polyamide composites. The recent advance of research, structure and property, the advanced techniques were summarized in this paper. In accordance with the hot spots of the research, the interface behavior, reinforcement and toughening of this type of material were expounded specially. Finally, the prospect and development of this composite were analyzed.

scholarly journals A novel arch-shaped hybrid composite triboelectric generator using carbon fiber reinforced polymers

2019 ◽  
Author(s):  
Chris Bowen
Keyword(s):  
Carbon Fiber ◽  
Copper Electrode ◽  
Fiber Reinforced Polymers ◽  
Energy Sources ◽  
Fiber Reinforced ◽  
Engineering Structures ◽  
Lower Electrode ◽  
Cfrp Composite ◽  
Carbon Fiber Reinforced ◽  
Self Powered

With the diminution of the energy sources and the need for using cleaner energy, alternatives must be found. In addition, the desire for energy sources to supply autonomous low-power electronics has led to interest in triboelectric materials. We have fabricated an arch-shaped hybrid carbon fiber reinforced polymer (CFRP) composite based triboelectric device employing a curved upper copper electrode and a flat lower electrode of a polyimide that are both combined with CFRP materials. This device aims to be used as a triboelectric harvesting energy source for self-powered sensors that can be combined with fibre reinforced composite based structures. We have been able to produce a voltage up to 300 mV which can charge a capacitor to 250mV. The ability to combine triboelectric and CFRP materials provides a new approach to integrate energy harvesting into engineering structures and manufacture robust harvesting devices.

scholarly journals UV-Assisted 3D Printing of Polymer Composites from Thermally and Mechanically Recycled Carbon Fibers

Polymers ◽  
2021 ◽  
Vol 13 (5) ◽  
pp. 726 ◽  
Author(s):  
Andrea Mantelli ◽  
Alessia Romani ◽  
Raffaella Suriano ◽  
Marco Diani ◽  
Marcello Colledani ◽  
...  
Keyword(s):  
Carbon Fiber ◽  
3D Printing ◽  
Carbon Fibers ◽  
Fiber Reinforced Polymers ◽  
Cost Ratio ◽  
Fiber Reinforced ◽  
Carbon Fiber Reinforced Polymers ◽  
Reinforced Polymers ◽  
3D Printed ◽  
Carbon Fiber Reinforced

Despite the growing global interest in 3D printed carbon fiber reinforced polymers, most of the applications are still limited to high-performance sectors due to the low effectiveness–cost ratio of virgin carbon fibers. However, the use of recycled carbon fibers in 3D printing is almost unexplored, especially for thermoset-based composites. This paper aims to demonstrate the feasibility of recycled carbon fibers 3D printing via UV-assisted direct ink writing. Pyrolyzed recycled carbon fibers with a sizing treatment were firstly shredded to be used as a reinforcement of a thermally and photo-curable acrylic resin. UV-differential scanning calorimetry analyses were then performed to define the material crosslinking of the 3D printable ink. Because of the poor UV reactivity of the resin loaded with carbon fibers, a rheology modifier was added to guarantee shape retention after 3D printing. Thanks to a customized 3D printer based on a commercial apparatus, a batch of specimens was successfully 3D printed. According to the tensile tests and Scanning Electron Microscopy analysis, the material shows good mechanical properties and the absence of layer marks related to the 3D printing. These results will, therefore, pave the way for the use of 3D printed recycled carbon fiber reinforced polymers in new fields of application.

Determination of the interfacial properties of carbon fiber reinforced polymers using nanoindentation

2021 ◽  
pp. 073168442110635
Author(s):  
Jing Zhu ◽  
Feng C Lang ◽  
Shi Y Wang ◽  
Zhuo Li ◽  
Yong M Xing
Keyword(s):  
Mechanical Properties ◽  
Carbon Fiber ◽  
Surface Topography ◽  
Mechanical Performance ◽  
Fiber Reinforced Polymers ◽  
Fiber Reinforced ◽  
The Matrix ◽  
Cfrp Composite ◽  
Carbon Fiber Reinforced ◽  
Continuous Stiffness Measurement

The mechanical properties of the interphase play a key role in determining the overall performance of carbon fiber reinforced polymer (CFRP) composite materials. For this reason, it is important to develop a method to easily and precisely investigate the mechanical performance of the interphase of CFRP materials. In this work, the surface topography of the CFRP material was examined using scanning probe microscopy (SPM), which revealed the polished flat sample can meet the requirements of the nanoindentation testing. The local mechanical performance of the interphase of the CFRP was determined using nanoindentation based on the continuous stiffness measurement (CSM) method. The results show that the size of the interphase between the carbon fiber and the matrix is about 1.5 μm, and the corresponding modulus and hardness values were estimated to be 5–11 and 0.4–3.3 GPa, respectively, considering the fiber-bias effects. Mapping of the local mechanical properties of a selected area revealed that nanoindentation reproduced excellently the surface topography and characterized precisely the properties of the interphase between the carbon fibers and the matrix.

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