Recovery of carbon fibres by the thermolysis and gasification of waste prepreg

López, Félix A.; Rodríguez, Olga; Alguacil, Francisco José; García‐Díaz, Irene; Centeno, Teresa A.; Fierro, José Luis García; González, C.

doi:10.1016/j.jaap.2013.04.012

Cited by 117 publications

(87 citation statements)

References 27 publications

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“…al found that partial oxidation of pyrolytic carbon is possible without seriously damaging the fibres in a semiindustrial pyrolysis plant [17]. López et al used a combined process of thermolysis and gasification in an air atmosphere to recover a carbon fibre reinforced polybenzoxazine prepreg [18]. The tensile strength of the carbon fibres obtained in thermolysis/gasification process at 500 • C showed around a 28% reduction compared to that of virgin fibre.…”

Section: Introductionmentioning

confidence: 99%

Recycling of carbon fibre reinforced epoxy resin composites under various oxygen concentrations in nitrogen–oxygen atmosphere

Yang

Liu

et al. 2015

Journal of Analytical and Applied Pyrolysis

113

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Section: Introductionmentioning

confidence: 99%

Recycling of carbon fibre reinforced epoxy resin composites under various oxygen concentrations in nitrogen–oxygen atmosphere

Yang

Liu

et al. 2015

Journal of Analytical and Applied Pyrolysis

113

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“…Esta estrutura é, no entanto, insolúvel e infusível, ou seja, uma vez curada, a resina termofixa não poderá retornar ao estado líquido com o aumento da temperatura. Porém, estudos mostram que é possível promover uma reação química capaz de reduzir as macromoléculas em oligômeros [2,[6][7][8][9]. Alguns exemplos de termofixos são as resinas epóxi, poliéster insaturado, viniléster e fenólica [2,4,5].…”

Section: Matriz Poliméricaunclassified

Caracterização De Um Compósito Polimérico Reforçado Com Fibras De Carbono Visando a Recuperação Das Fibras De Carbono

Abdou¹,

Tenório²,

Romano³

2018

ABM Proceedings

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ResumoO presente trabalho visa caracterizar um compósito polimérico de matriz epóxi reforçado com fibras de carbono HTS40 E13 3k TohoTenax® para avaliar o potencial de reutilização das fibras de carbono. As técnicas de caracterização utilizadas foram a microscopia eletrônica de varredura para análise superficial do compósito antes e depois da degradação térmica, análise por Energy Dispersive Spectroscopy para verificar os elementos químicos presentes no produto final e a termogravimetria para determinar a influência da temperatura e do tempo de tratamento na degradação da matriz polimérica. O presente estudo mostra que a matriz polimérica do compósito utilizado inicia o processo de degradação a 250°C e que a 500°C é possível obter um material de reforço intacto e livre da matriz polimérica com apenas traços residuais da resina e o tempo de tratamento térmico em um patamar isotérmico não influencia a taxa de degradação. Palavras-chave: Fibra de carbono; Material compósito; Degradação térmica. CHARACTERIZATION OF CARBON FIBER REINFORCED COMPOSITE FOCUSING ON THE RECOVERING OF CARBON FIBER AbstractThis study aims to characterize a polymeric composite of epoxy matrix reinforced with HTS40 E13 3k TohoTenax® carbon fiber to assess the potential of reusing the carbon fibers. The techniques of characterization used were scanning electron microscopy for surface analyses of the composite -before and after the thermal degradation-, analysis by energy dispersive spectroscopy to verify the chemical elements present in the final product and thermogravimetry to determine the influence of temperature and time treatment in the degradation of the polymer matrix. The present study shows that the degradation process of the polymer matrix used starts at 250°C and at 500°C it is possible to obtain an intact and free polymer matrix reinforcing material with traces of residual resin and the degradation treatment time does not influence the rate of degradation.

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“…This is due to their lightweight, very high strength and ability to endure impact [18]. Around 20% of yearly prepreg carbon fiber production goes to use in the aerospace field as well as 30% being facilitated to the automobile industry [19]. An increasing number of aircraft structures have become highly dependent on the use of these materials.…”

Section: Activated Carbon Fibermentioning

confidence: 99%

“…Moreover, the peaks in the range of 1630, 1157, 1381, 1017 and 890 cm À1 assigned to NdH bending, CdN stretching, OdH in plane bending, CdCdC Skeletal in the backbone and CH 3 dCdOH stretching respectively as recorded in Table 1. Bands around 647 and 496 cm À1 indicate the presence of OH and CdC bending vibrations respectively [19].…”

mentioning

confidence: 99%

Activating Carbon Fibers and Date Pits for Use in Liver Toxin Adsorption

Seyedzadeh¹,

Mwafy²,

Ahmed³

et al. 2017

Poisoning - From Specific Toxic Agents to Novel Rapid and Simplified Techniques for Analysis

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Acute liver failure (ALF) is a rare, potentially fatal complication of severe hepatic illness. It is a syndrome that triggers a cascade of events, leading to multiple organ failures and often death. The work aimed at demonstrating the usefulness of activated raw date pits and carbon fiber reinforced polymers (CFRP) in the management of ALF. The activated carbons produced are used for adsorption of albumin bound toxins from the liver of patients with ALF. The liver is not cured, however, patients are given the time they need to find a suitable donor. Initially, date pits are milled and epoxy is removed from the CFRP. Both materials then undergo pyrolysis and activation treatments. The activated carbon fiber (ACF) and powdered activated carbon (PAC) resulting are tested using FTIR and TGA analysis. FTIR spectrums provide information about functional groups present in the samples and TGA graphs illustrate weight loss as treatment temperature increases. From the data analysis carried out, it appears that the process of recycling both; date pits and CFRP was successful. This confirms the ability of PAC and ACFs to adsorb toxins and as potential candidates for consideration in the search for effective treatment options for liver failure.

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Recovery of carbon fibres by the thermolysis and gasification of waste prepreg

Cited by 117 publications

References 27 publications

Recycling of carbon fibre reinforced epoxy resin composites under various oxygen concentrations in nitrogen–oxygen atmosphere

Recycling of carbon fibre reinforced epoxy resin composites under various oxygen concentrations in nitrogen–oxygen atmosphere

Caracterização De Um Compósito Polimérico Reforçado Com Fibras De Carbono Visando a Recuperação Das Fibras De Carbono

Activating Carbon Fibers and Date Pits for Use in Liver Toxin Adsorption

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