Recycling glass fiber thermoplastic composites from wind turbine blades

Cousins, Dylan S.; Suzuki, Yasuhito; Murray, Robynne E.; Samaniuk, Joseph R.; Stebner, Aaron P.

doi:10.1016/j.jclepro.2018.10.286

Cited by 232 publications

(142 citation statements)

References 51 publications

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“…Using a lower molecular weight polymer as a means to tune the viscosity and exotherm profile of a resin without compromising mechanical properties is a very significant finding. Recent work shows that acrylic thermoplastic polymer from a prototypical wind turbine blade can be recovered via a dissolution process . Dissolution of PMMA‐based thermoplastic composites using MMA as the solvent could be used as a means of creating a new resin material.…”

Section: Resultsmentioning

confidence: 99%

“…The present study brings new and literature data together in the form of parameterized models to serve the growing interest in using infusible thermoplastic resins . Thermoplastic composites have several attractive features—they can be thermally welded and are inherently more recyclable than their thermosetting counterparts . However, viscosity control is critical for proper wet out of the fibers during vacuum‐assisted resin transfer molding (VARTM).…”

Section: Introductionmentioning

confidence: 99%

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Infusible acrylic thermoplastic resins: Tailoring of chemorheological properties

Cousins

Howell

Suzuki

et al. 2019

J of Applied Polymer Sci

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Infusible liquid resins that polymerize into a thermoplastic are desirable for many applications. Similar to unsaturated and vinylester thermosetting systems, they consist of polymers dissolved in reactive monomer. This work presents a method to decrease cycle time by tuning the molecular weight and concentration of the predissolved polymer in the resin. Variation of these properties allows precise control of the viscosity which in turn controls the time at which peak exotherm is reached, the maximum temperature for a given part thickness, and cure time. Predictive models for the viscosity dependence on molecular weight, polymer concentration, shear rate, and temperature are developed. Two fiberglass panels are fabricated and tested; one with a lower molecular weight (Mw~30 kg mol−1) poly(methyl methacrylate) dissolved in methyl methacrylate and the second with higher molecular weight (Mw~500 kg mol−1) predissolved polymer in the resin. Mechanical properties are indistinguishable but the lower molecular weight panel cures up to three times faster. © 2019 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2019, 136, 48006.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Infusible acrylic thermoplastic resins: Tailoring of chemorheological properties

Cousins

Howell

Suzuki

et al. 2019

J of Applied Polymer Sci

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“…Post-consumer polymeric waste is a pollution source which seriously damages the environment, generally trending to be aggravated if efficient management and recycling policies are not adopted [1][2][3]. In this context, waste from elastomeric products used in the automobile and footwear industries has been drawn attention, since the vast majority are vulcanized, therefore lasting decades to be decomposed [4,5].…”

Section: Introductionmentioning

confidence: 99%

RSM applied to PS/SBRr/SEBS Blends. Proper tool for maximized properties

Luna

Ferreira

Siqueira

et al. 2020

Mater. Res. Express

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Reusing rubber waste from footwear industry emerges as great practise in order to reduce environmental damage on natural ecosystems. Based on this target, the present work aimed to apply the response surface methodology (RSM) to polystyrene/styrene-butadiene PS/SBRr blends compatibilized with styrene-ethylene-butylene-styrene (SEBS). A mixture planning was applied to PS/SBRr/SEBS blends in order to investigate mechanical and thermomechanical behaviors as response variables. Scanning electron microscopy (SEM) was used to evaluate the morphology of investigated blends, which were melt extruded in a corrotational twin screw extruder and specimens were injection moulded. High impact strength, toughness, elongation at break and thermal deflection temperature (HDT) were achieved at SEBS rich region (∼10%). At PS rich region, tensile strength, Shore D hardness and Vicat softening temperature (VST) were more expressive. Related to morphological character, blends with 10% SEBS presented the highest interfacial adhesion, with high level of plastic deformation. Gathered results show that depending on the composition, properties significantly change, being RSM a proper tool to preview trends on mechanical and thermomechanical properties. In general, PS/SBRr/SEBS blends may be properly used as packaging and building applications.Danilo Diniz Siqueira https:/ /orcid.org/0000-0002-3533-513X Renate Maria Ramos Wellen https://orcid.org/0000-0002-3565-7366

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“…us, recyclability of both the production waste and end-of-life (EOL) products has become an important and vital issue globally. e studies on GFRPA waste recycling and the reuse of sequent recyclates are limited [40,45]. Cousins et al [45] utilized the dissolution process to recover the constituent materials from a thermoplastic composite waste part and further used the reclaimed glass fibers to fabricate the new material.…”

Section: Introductionmentioning

confidence: 99%

“…e studies on GFRPA waste recycling and the reuse of sequent recyclates are limited [40,45]. Cousins et al [45] utilized the dissolution process to recover the constituent materials from a thermoplastic composite waste part and further used the reclaimed glass fibers to fabricate the new material. It is interesting to note that the new material with recycled glass fibers reported higher stiffness and mechanical strength as compared to the virgin fibers, thus suggesting reusability of recycled glass fibers and possibility of selling the fibers and resin at a cheaper price to different industries.…”

Section: Introductionmentioning

confidence: 99%

Development of FRC Materials with Recycled Glass Fibers Recovered from Industrial GFRP-Acrylic Waste

Patel

Gupta

Garg

et al. 2019

Advances in Materials Science and Engineering

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Fiber-reinforced concrete (FRC) and engineered cementitious composite materials have demonstrated promising requisite in construction industry owing to its superior mechanical and durability properties. In this study, a sustainable approach was taken, i.e., to use industry waste as a reinforcement with improved interfacial bonding leading to enhanced mechanical performance of FRC. An efficient in situ recycling process allowed the authors to extract glass fibers from glass fiber-reinforced polymer acrylic waste. Concrete mixes with low fiber dosages including 0.1%, 0.2%, and 0.3% (by volume) of recycled as well as virgin glass fibers were prepared. The slump of concrete was maintained ∼150 mm by using high water-reducing admixture (HWRA). Notably, lower amount of HWRA was required for raw glass fibers vis-à-vis recycled ones due to its hydrophobic nature. Overall, FRC enclosing 0.3% recycled glass fiber demonstrated >20% enhancement in compressive, split tensile, and flexural strength as compared to control (after 28 days of curing), also supported by morphological analysis.

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Recycling glass fiber thermoplastic composites from wind turbine blades

Cited by 232 publications

References 51 publications

Infusible acrylic thermoplastic resins: Tailoring of chemorheological properties

Infusible acrylic thermoplastic resins: Tailoring of chemorheological properties

RSM applied to PS/SBRr/SEBS Blends. Proper tool for maximized properties

Development of FRC Materials with Recycled Glass Fibers Recovered from Industrial GFRP-Acrylic Waste

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