Cost benefit and life cycle analysis of CFRP and GFRP waste treatment methods

Wei, Yongqi; Hadigheh, S. Ali

doi:10.1016/j.conbuildmat.2022.128654

Cited by 34 publications

(18 citation statements)

References 37 publications

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“…Repurposing of wind turbine parts by making minor modifications to their parts in their as-received state is the most common end of life option, due in large part to the higher cost of recycling [11]. Examples of repurposing include transforming the Glass Fiber Waste from Wind Turbines: Its Chemistry, Properties, and End-of-life Uses DOI: http://dx.doi.org/10.5772/intechopen.108855 blades into load-bearing structural systems; cutting the blade for use in roof frames for small houses and/or affordable housing communities [12]; using the cut root section as a foundation for homes along flood plains [13]; and using the shear webs that connect the top and bottom halves of the blade as doors, window covers and more [14].…”

Section: End Of Life: Repurposingmentioning

confidence: 99%

“…Although repurposing of wind turbine parts is the most economical and therefore common end-of-life option [11], recycling of the blades offers additional opportunities. Recycling refers to the mechanical crushing and reuse of the GFRP or the extraction of GF fibers from the composite for use as feedstock for other processes.…”

Section: End Of Life: Recyclingmentioning

confidence: 99%

“…Recycling of GFRP may also refer to the extraction of GF fibers from the composite: due to the high energy cost and infrastructure requirement for this process, it has not been widely adopted [11]. However, another precedent for use of recycled wind turbine GFRP is cement co-processing.…”

Section: End Of Life: Recyclingmentioning

confidence: 99%

“…Nitric acid [7], sulfuric acid [22], and alternate acids can be used as a solvent. Glycol, methanol, ethanol, 1-propanol, and acetone may also be used in solvolysis to depolymerize the matrix and extract the GF [11]. The chemical yields from these processes are quite low, and the solid residue is often contaminated with organic material which requires further treatment.…”

Section: Chemical Separationmentioning

confidence: 99%

See 3 more Smart Citations

Glass Fiber Waste from Wind Turbines: Its Chemistry, Properties, and End-of-life Uses

Glosser¹,

Russell²,

Striby³

2023

Optical Fiber and Applications

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Glass fiber and glass fiber-reinforced polymers are of interest to engineers for a wide variety of applications, owing to their low weight, high relative strength, and relative low cost. However, management of glass fiber waste products is not straightforward, particularly when it is part of a composite material that cannot be easily recycled. This is especially the case for physically large structures such as wind turbine blades. This chapter deals with the challenges of managing this growing waste stream and reviews the structure and chemistry of glass fiber and glass fiber-reinforced polymers used in wind turbine blades, the separations processes for extracting the glass fiber from the thermoset resin, and end-of-life options for the materials. Thermodynamic evidence is reported and evaluated for a novel end-of-life solution for wind turbine waste: using it as a supplementary cementitious material.

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Section: End Of Life: Repurposingmentioning

confidence: 99%

Section: End Of Life: Recyclingmentioning

confidence: 99%

Section: End Of Life: Recyclingmentioning

confidence: 99%

Section: Chemical Separationmentioning

confidence: 99%

See 2 more Smart Citations

Glass Fiber Waste from Wind Turbines: Its Chemistry, Properties, and End-of-life Uses

Glosser¹,

Russell²,

Striby³

2023

Optical Fiber and Applications

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“…However, numerous waste CFRP composites may be produced during the production and utilization processes. The generation of CFRP wastes reached 62000 tons in 2020 ( Wei and Hadigheh, 2022 ). And the global waste CFRP composite output is estimated to be around nearly 500000 tons by 2050 ( Lefeuvre et al, 2017 ).…”

Section: Introductionmentioning

confidence: 99%

Recovery of carbon fiber-reinforced polymer waste using dimethylacetamide base on the resin swelling principle

Ming

Zhao

et al. 2022

Front. Chem.

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The mechanical recycling method of the carbon fiber-reinforced polymer (CFRP) has the advantages of simple process, less pollution and low cost, but only low utilization value of carbon fibers in powder or short fibers form can be obtained. To reduce the length and strength loss of the recycled carbon fibers, a novel and cost-effective dimethylacetamide (DMAC) swelling technique was developed to achieve rapid delamination of the CFRP laminates under mild conditions (120°C–160°C, 1 h). The corresponding swelling ratios and mass-loss rates of cured epoxy resin (CEP) were about 121.39%–157.39% and 0–0.69%, respectively. Excessive swelling of CEP in DMAC resulted in the cracking of the resin matrix between the adjacent carbon fiber layers. Thus the CFRP laminates were delaminated into soft single carbon fiber layers, which showed excellent cutting performance and reinforcing properties. The delamination products were cut into thin strips of different sizes and vacuum bag molded into new CFRP laminates. The flexural strength and tensile strength of the newly produced CFRP laminates were about 76.38%–90.98% and 94.61%–98.54% of the original CFRP laminates, respectively. More importantly, the chemical compositions of DMAC and CEP were unchanged during the physical swelling process. No organic pollutants (caused by resin degradation) were generated. And the used DMAC can be easily recycled by filtration. Therefore, this study provides a strategy for low-cost and high-valued recycling of CFRP waste.

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An Experimental Investigation on Mechanical Properties and Microstructures of Mortar Incorporated with Recycled Fibre-reinforced Polymer (rFRP) Composite Waste

Tao

Hadigheh

2023

Lecture Notes in Civil Engineering

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Cost benefit and life cycle analysis of CFRP and GFRP waste treatment methods

Cited by 34 publications

References 37 publications

Glass Fiber Waste from Wind Turbines: Its Chemistry, Properties, and End-of-life Uses

Glass Fiber Waste from Wind Turbines: Its Chemistry, Properties, and End-of-life Uses

Recovery of carbon fiber-reinforced polymer waste using dimethylacetamide base on the resin swelling principle

An Experimental Investigation on Mechanical Properties and Microstructures of Mortar Incorporated with Recycled Fibre-reinforced Polymer (rFRP) Composite Waste

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