Efficient method of recycling carbon fiber from the waste of carbon fiber reinforced polymer composites

Deng, Jianying; Xu, Lei; Liu, Jianhua; Peng, Jinhui; Han, Zhaohui; Shen, Zhigang; Guo, Shenghui

doi:10.1016/j.polymdegradstab.2020.109419

Cited by 44 publications

(34 citation statements)

References 45 publications

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“…IR spectra were recorded in the spectral range of 4500-650 cm −1 with a resolution of 4 cm −1 and an average number of scans of 16. The intensities of 17 ions (m/z = 14,16,17,18,26,28,30,42,44,46,56,60, 64 and 94) were determined according to the previous work [16,41]. Figure 2 shows the TG and DTG curves of carbon fiber reinforced epoxy resin matrix composite heated from room temperature to 1100 °C at 20 °C/min under air and inert atmosphere, respectively.…”

Section: Methodsmentioning

confidence: 99%

“…The combination of thermal analysis and infrared or mass spectrometry analysis can more accurately analyze the reaction process and mechanism. Considerable progress has been made in modeling of kinetic [ 17 , 18 , 19 , 20 , 21 , 22 , 23 ], including multi- or single-step kinetic models that can be utilized in thermal–mechanical model [ 24 ], lightning strikes [ 25 ], fire behavior [ 11 ], curing process design, fiber recycling [ 26 , 27 ], etc.…”

Section: Introductionmentioning

confidence: 99%

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Mechanism Identification and Kinetics Analysis of Thermal Degradation for Carbon Fiber/Epoxy Resin

et al. 2021

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For carbon fiber epoxy resin used in aerostructure, thermal degradation mechanism and kinetics play an important role in the evaluation of thermal response and combustion characteristics. However, the thermal decomposition process and mechanism are difficult to unify strictly due to the complexity of the components from different suppliers. In the present study, a product of carbon fiber epoxy resin made by AVIC(Aviation Industry Corporation of China) composite corporation is examined to identify its thermal degradation mechanism and pyrolysis products by measurements, including simultaneous thermal analysis, Fourier transform infrared spectroscopy and mass spectrometry, establish the kinetic model by Kissinger/Friedman/Ozawa/Coats-Redfern methods. The results show thermal degradation occurs in three steps under the inert atmosphere, but in four steps under air atmosphere, respectively. The first two steps in both environments are almost the same, including drying, carbon dioxide escape and decomposition of the epoxy resin. In the third step of inert atmosphere, phenol is formed, methane decreases, carbon monoxide basically disappears and carbon dioxide production increases. However, in air, thermal oxidation of the carbonaceous residues and intermolecular carbonization are observed. Furthermore, thermal degradation reaction mechanism submits to the F4 model. These results provide fundamental and comprehensive support for the application of carbon fiber epoxy resin in aircraft industry.

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Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Mechanism Identification and Kinetics Analysis of Thermal Degradation for Carbon Fiber/Epoxy Resin

et al. 2021

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“…Recycling of these materials is accompanied by either high costs, technical difficulties regarding the separation process of the different polymers, or the inability to recycle mixed polymers [8,45]. Current recycling technologies for processing and handling solid plastic waste streams include gasification as a thermo-chemical conversion process for the recycling of polymeric composites, pyrolysis, fluid catalytic cracking, hydrogen technologies (hydrocracking and IH 2 process), and the catalytic pressure-less depolymerization process [16,[51][52][53][54][55].…”

Section: Current Packaging Characteristicsmentioning

confidence: 99%

Can Sustainable Packaging Help to Reduce Food Waste? A Status Quo Focusing Plant-Derived Polymers and Additives

et al. 2021

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The promotion of sustainable packaging is part of the European Green Deal and plays a key role in the EU’s social and political strategy. One option is the use of renewable resources and biomass waste as raw materials for polymer production. Lignocellulose biomass from annual and perennial industrial crops and agricultural residues are a major source of polysaccharides, proteins, and lignin and can also be used to obtain plant-based extracts and essential oils. Therefore, these biomasses are considered as potential substitute for fossil-based resources. Here, the status quo of bio-based polymers is discussed and evaluated in terms of properties related to packaging applications such as gas and water vapor permeability as well as mechanical properties. So far, their practical use is still restricted due to lower performance in fundamental packaging functions that directly influence food quality and safety, the length of shelf life, and thus the amount of food waste. Besides bio-based polymers, this review focuses on plant extracts as active packaging agents. Incorporating extracts of herbs, flowers, trees, and their fruits is inevitable to achieve desired material properties that are capable to prolong the food shelf life. Finally, the adoption potential of packaging based on polymers from renewable resources is discussed from a bioeconomy perspective.

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“…The increasing utilization of carbon fiber reinforced polymer composites (CFRPC), especially thermosetting polymers, has raised environmental and economic awareness for the need to recycle the composites [1][2][3][4][5][6][7]. To this end, employment of polyolefins for fabrication of advanced and recyclable carbon fiber reinforced thermoplastic composites (CFRTCs) possessing high solvent/environmental resistance, high modulus, strength, and toughness, can relieve the economic, environmental, and political pressure [8][9][10][11][12][13][14][15][16][17][18][19].…”

Section: Introductionmentioning

confidence: 99%

Fabrication of Porous Carbon Films and Their Impact on Carbon/Polypropylene Interfacial Bonding

et al. 2021

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Porous carbon films were generated by thermal treatment of polymer films made from poly(acrylonitrile-co-methyl acrylate)/polyethylene terephthalate (PAN/PET) blend. The precursor films were fabricated by a dip-coating process using PAN/PET solutions in hexafluoro-2-propanol (HFIP). A two-step process, including stabilization and carbonization, was employed to produce the carbon films. PET functioned as a pore former. Specifically, porous carbon films with thicknesses from 0.38–1.83 μm and pore diameters between 0.1–10 μm were obtained. The higher concentrations of PET in the PAN/PET mixture and the higher withdrawal speed during dip-coating caused the formation of larger pores. The thickness of the carbon films can be regulated using the withdrawal speed used in the dip-coating deposition. We determined that the deposition of the porous carbon film on graphite substrate significantly increases the value of the interfacial shear strength between graphite plates and thermoplastic PP. This study has shown the feasibility of fabrication of 3D porous carbon structure on the surface of carbon materials for increasing the interfacial strength. We expect that this approach can be employed for the fabrication of high-performance carbon fiber-thermoplastic composites.

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Efficient method of recycling carbon fiber from the waste of carbon fiber reinforced polymer composites

Cited by 44 publications

References 45 publications

Mechanism Identification and Kinetics Analysis of Thermal Degradation for Carbon Fiber/Epoxy Resin

Mechanism Identification and Kinetics Analysis of Thermal Degradation for Carbon Fiber/Epoxy Resin

Can Sustainable Packaging Help to Reduce Food Waste? A Status Quo Focusing Plant-Derived Polymers and Additives

Fabrication of Porous Carbon Films and Their Impact on Carbon/Polypropylene Interfacial Bonding

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