Recycling of end-of-life thermoplastic composite boats

Otheguy, ME; Gibson, A.G.; Findon, E; Cripps, R M; Mendoza, Arturo; Castro, M. T. Aguinaco

doi:10.1179/146580109x12540995045642

Cited by 37 publications

(23 citation statements)

References 12 publications

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“…For large structures thermoset matrix resins are generally used, but there is increasing interest in thermoplastics. For example, these materials have been used in bus bodywork [1], boat hulls [2], and lorry trailers [3].…”

Section: Accepted Manuscriptmentioning

confidence: 99%

Flax/PP manufacture by automated fibre placement (AFP)

et al. 2016

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Automated fibre placement (AFP) has been used to manufacture flax/polypropylene biocomposites for the first time. This required preparation of tape with a calibrated width from impregnated fibre sheets. The unidirectional tapes showed polymer-rich zones on the surface. During manufacture the polypropylene (PP) is melted locally with a laser. A consolidation step in a hot press is then required to reduce void content. The flax fibres, composed of polysaccharides, have limited thermal resistance so optimization of the thermal cycle is necessary, but subsequent characterization of mechanical behaviour showed no evidence of property loss in spite of an additional melting cycle. AFP appears to be a promising manufacturing method for biocomposites. Graphical abstract Highlights ► A new process to produce flax/PP tape for AFP is described, using calendering between rollers. ► Microstructure analysis shows surface polymer and good impregnation. ► AFP forming process allows manufacture of temperature sensitive natural fibres. ► Mechanical properties comparable to those for compression moulded plate specimens.

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Section: Accepted Manuscriptmentioning

confidence: 99%

Flax/PP manufacture by automated fibre placement (AFP)

et al. 2016

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“…Wood-plastic composites (known as WPCs) belong to the category of fiber-reinforced composite materials [1]. They combine the stability of wood fibers with the durability of synthetic thermoplastic polymers, particularly PE, PP and PVC [2,3,4,5,6]. This combination allows a wide range of applications, while also offering the option of using the waste products of the forestry and wood industries as well as some types of recycled plastic waste [3,4,5,6,7,8].…”

Section: Introductionmentioning

confidence: 99%

“…They combine the stability of wood fibers with the durability of synthetic thermoplastic polymers, particularly PE, PP and PVC [2,3,4,5,6]. This combination allows a wide range of applications, while also offering the option of using the waste products of the forestry and wood industries as well as some types of recycled plastic waste [3,4,5,6,7,8]. Even though the technology appeared almost 100 years ago [5,9], the greatest success of production and demand for these products has only been seen in recent years [5,10,11,12].…”

Section: Introductionmentioning

confidence: 99%

Comparison of Adhesive Properties of Polyurethane Adhesive System and Wood-plastic Composites with Different Polymers after Mechanical, Chemical and Physical Surface Treatment

et al. 2019

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The cost of most primary materials is increasing, therefore, finding innovative solutions for the re-use of residual waste has become a topic discussed more intensely in recent years. WPCs certainly meet some of these demands. The presented study is focused on an experimental analysis of the effect of surface treatment on the adhesive properties of selected WPCs. Bonding of polymer-based materials is a rather complicated phenomenon and modification of the bonded area in order to improve the adhesive properties is required. Two traditional types of surface treatments and one entirely new approach have been used: mechanical with sandpaper, chemical with 10 wt % NaOH solution and physical modification of the surface by means of a MHSDBD plasma source. For comparison purposes, two high-density polyethylene based products and one polyvinyl-chloride based product with different component ratios were tested. A bonded joint was made using a moisture-curing permanently elastic one-component polyurethane pre-polymer adhesive. Standardized tensile and shear test methods were performed after surface treatment. All tested surface treatments resulted in an improvement of adhesive properties and an increase in bond strength, however, the MHSDBD plasma treatment was proven to be a more suitable surface modification for all selected WPCs.

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“…Issues such as uncontrolled disposal of fibre reinforced polymer composites are concerning many researchers. Therefore, using recycled GFRP in composites products is a great solution to reduce GFRP waste in landfills (Otheguy et al, 2009).…”

Section: Introductionmentioning

confidence: 99%

Mechanical properties of recycled glass fibre reinforced nanoclay/unsaturated polyester composites

Hanan

Hassan

Wahit

et al. 2017

Int. j. adv. appl. sci

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The purpose of this study is to study the effects of montmorillonite (MMT) nanofiller on the mechanical properties of glass fibre recyclates (rGF) reinforced unsaturated polyester (UP) composites. Alumina-silicates nanoclay such as MMT can improves the mechanical performance of polymeric composites. This study uses the mechanical recycling process to grind the GFRP waste into recyclates. MMT nanoclay was dispersed into UP using ultrasonicator. Different weight percentage of rGF at 25 wt.%, 30 wt.% and 40 wt.% were mixed in UP-MMT resin and formed into composites plate using compression moulding. Preliminary study shows that, the tensile strength of 25 wt.% raw rGF-UP composites was approximately 50% lower than of UP. Therefore, raw rGF was sieved into coarse and fine grade to improve the tensile properties of the composites. Compared to raw rGF, sieved rGF has better tensile strength due to better fibre distribution of rGF and uniformed fibre length. Coarse rGF composites which contain relatively larger aspect ratio (longer fibre length) have better tensile properties than fine rGF. The inclusion of MMT nanofiller in polyester resin enables the tensile strength of the composites to increase. For example, the tensile strength of 40 wt.% fine rGF-3 wt.% MMT hybrid composites is higher by 14% than the non-hybrid 40 wt.% fine rGF. Scanning electron microscopy shows good fibre/resin adhesion for MMT below 3 wt.%. While at 5 wt.% MMT, the UP resin becomes degraded and developed poor adhesion of resin to the recyclate fibres.

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Recycling of end-of-life thermoplastic composite boats

Cited by 37 publications

References 12 publications

Flax/PP manufacture by automated fibre placement (AFP)

Flax/PP manufacture by automated fibre placement (AFP)

Comparison of Adhesive Properties of Polyurethane Adhesive System and Wood-plastic Composites with Different Polymers after Mechanical, Chemical and Physical Surface Treatment

Mechanical properties of recycled glass fibre reinforced nanoclay/unsaturated polyester composites

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