Recycling of composite materials

Buggy, M.; Farragher, L.; Madden, William

doi:10.1016/0924-0136(95)02037-3

Cited by 51 publications

(31 citation statements)

References 16 publications

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“…Problems exist however, in the disposal of end-of-life composites, as these materials are considered as non-recyclable [4,5] and most of the waste is dumped in landfill. Currently the EC Waste Landfill Directive classifies carbon fibre composites as chemical waste which has led to substantial disposal costs and represents a waste of a valuable resource [6].…”

Section: Introductionmentioning

confidence: 99%

Recycling of carbon fibre reinforced polymeric waste for the production of activated carbon fibres

Nahil

Williams

2011

Journal of Analytical and Applied Pyrolysis

139

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Section: Introductionmentioning

confidence: 99%

Recycling of carbon fibre reinforced polymeric waste for the production of activated carbon fibres

Nahil

Williams

2011

Journal of Analytical and Applied Pyrolysis

139

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“…5,9 Zheng et al 10 reported on efforts to reclaim glass fiber from glass-fiber-reinforced composites by heating in a muffle furnace. Buggy et al 11 and Iwaya et al 12 have attempted to extract fiber by dissolving the polymeric fraction using various organic and inorganic solvents. Patel et al 13 investigated various recycling technologies for sheet molding compound (SMC), including solvent dissolution, hydrolysis, and pyrolysis.…”

Section: Introductionmentioning

confidence: 99%

The Recycling of Comminuted Glass-Fiber-Reinforced Resin from Electronic Waste

Duan

Jia

2010

Journal of the Air & Waste Management Association

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The reuse of comminuted glass-fiber-reinforced resin with various granularities gathered from printed circuit manufacturing residues was investigated. As fillers, these residues were converted into polymeric composite board by an extrusion and injection process using polypropylene as a bonding agent. The mechanical properties of the reproduced composite board were examined by considering the effects of mass fraction and glass-fiber distribution. Interfacial-layer micrograph analysis of the composite material fracture surface was used to study the fiber reinforcement mechanism. Results showed that using comminuted glass-fiber-reinforced resin as a filler material greatly enhanced the performance properties of the composite board. Although the length and diameter of filler varied, these variations had no appreciable effect on the mechanical properties of the processed board. Maximum values of 48.30 MPa for flexural strength, 31.34 MPa for tensile strength, and 31.34 J/m for impact strength were achieved from a composite board containing mass fractions of 30, 10, and 20% glass-fiber-reinforced resin waste, respectively. It was found that the maximum amount of recyclate that could be added to a composite board was 30% of weight. Beyond these percentages, the materials blend became unmanageable and the mixture less amenable to impregnation with fiber. Presented studies indicated that comminuted glass-fiber-reinforced resin wastefilled polypropylene composites are promising candidates for structural applications where high stiffness and fracture resistance are required.

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“…In general, there are three basic waste treatments of thermoset composites: mechanical recycling, in which waste is shredded and grinded to use in the production of the new composites; chemical recycling, in which the organic compounds can be recovered by chemical reaction (e.g. hydrolysis, glycolysis or acid digestion 5 ); finally, energy recovery, in which the objective is to obtain the caloric content of the polymer 6,7 . Compared to other methods, mechanical recycling does not need pre-treatment of the waste, it does not use any hazardous materials, and in some case it is possible to recover both fibers and resin 8 .…”

Section: Introductionmentioning

confidence: 99%

Polypropylene Composites Manufactured from Recycled Carbon Fibers from Aeronautic Materials Waste

et al. 2017

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Carbon fiber composites are used in several industries such as, aerospace, automotive, civil engineering, sports goods and technical applications due to its low-weight, strength and stiffness. However, the technology of recycling of these thermosetting polymer composites remains an engineering challenge because of their cross-linked structures that impede their reprocessing by simple heating. The aim of this work was to study the influence of the amount and dimensions of carbon fibers arising from composite waste into a new composite of polypropylene matrix. In order to carry out the study, the carbon fiber composite waste has been mechanically processed for the production of chopped fibers with two different lengths (4.5 mm and 3.0 mm). Thermoplastic composites made of chopped carbon fiber/ polypropylene at proportions 1%, 5% and 7% in fiber weight content were obtained by extrusion and injection process. Then, a series of laboratory test (mechanical, thermal and morphological) were performed in order to characterize the composite material obtained. The results showed that the fibers were capable of causing a reinforcing, even though the new composite presents a complex phase system with low adhesion between the recycled carbon fibers and the polypropylene matrix.

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Recycling of composite materials

Cited by 51 publications

References 16 publications

Recycling of carbon fibre reinforced polymeric waste for the production of activated carbon fibres

Recycling of carbon fibre reinforced polymeric waste for the production of activated carbon fibres

The Recycling of Comminuted Glass-Fiber-Reinforced Resin from Electronic Waste

Polypropylene Composites Manufactured from Recycled Carbon Fibers from Aeronautic Materials Waste

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