On the recyclability of a cyclic thermoplastic composite material

Polymer composites with natural fibers prepared by melt blending were investigated. Synthetic and natural macromolecules were used, including poly(lactic acid), polyhydroxybutyrate-co-polyhydroxyvalerate and low density polyethylene. These polymers were filled with flax fibers. Mechanical properties of the composites, biogas production and mass loss under anaerobic digestion have been presented. It has been shown that the mechanical properties sustain after 28 days of biodegradation. Such materials can be found in applications as packaging, as well as in medicine as polymeric scaffolds, and drug delivery systems etc.

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“…Generally, the mechanical properties of composites are higher than that of the polymeric matrix [1][2][3][4].…”

Section: Introductionmentioning

confidence: 99%

Anaerobic Biodegradation of Polymer Composites Filled with Natural Fibers

et al. 2014

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“…Carbon fiber reinforced thermoplastic composite become a standard construction material in last decades mainly for its good strength to weight ratio, chemical resistivity and recyclable [1]. Moreover operating of light weight structures is economically beneficial.…”

Section: Introductionmentioning

confidence: 99%

Deformation Characteristics of Chopped Fibre Composites Subjected to Quasi-Static Tensile Loading

Šleichrt

Adorna

Neühauserová

et al. 2016

APP

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Abstract. This work presents deformation behaviour of cost effective chopped fiber composites. Use of chopped fibre is advantageous for manufacturing however complex shape parts production technology could be challenging. Batches of samples with different fibres composition were subjected to uni-axial tensile loading to obtain overall materials properties and inspection of proper manufacturing based on local deformation inhomogeneities. Both crossbeam displacement and optical strain measurement were used for elastic characteristics evaluation. Deformation response was derived from full-field optical strain measurements based on digital image correlation method. Relatively large variation of mechanical properties testing of samples was found.

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“…TPCs offer some important advantages over their thermoset counterparts, such as higher toughness of the matrix, higher impact resistance, and significantly shorter manufacturing cycles. In addition, these composites are of light weight, can be welded, and relatively easily recycled by reprocessing . The latter feature becomes very important in view of the rigorous requirements for environmental protection imposed in most industrialized countries.…”

Section: Introductionmentioning

confidence: 99%

Preparation and properties of polyamide‐6‐based thermoplastic laminate composites by a novel in‐mold polymerization technique

Dencheva

Sampaio

Oliveira

et al. 2013

J of Applied Polymer Sci

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In this work, a method for preparation of polyamide-6 (PA6) based laminates reinforced by glass fiber-(GFL) or polyamide-66 (PA66) textile structures (PL) via reactive injection molding is disclosed. It is based on in-mold anionic polymerization of e-caprolactam carried out at 165 C in the presence of the respective reinforcements performed in newly developed prototype equipment whose design concept and operation are described. Both composite types were produced for reaction times of 20 min, with conversion degrees of 97-99%. Initial mechanical tests in tension of GFL samples displayed almost twofold increase of the Young's modulus and stress at break values when compared with the neat anionic PA6. The improvement was proportional to the volume fraction V f of glass fiber fabric that was varied in the 0.16-0.25 range. A 300% growth of the impact strength was registered in PL composites with V f of PA66 textile of 0.1. Removing the surface finish of the latter was found to be a factor for improving the adhesion at the matrix-fiber interface. The mechanical behavior of GFL and PL composites was discussed in conjunction with the morphology of the samples studied by optical and electron microscopy and the matrix crystalline structure as revealed by synchrotron X-ray diffraction.

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On the recyclability of a cyclic thermoplastic composite material

Cited by 56 publications

References 7 publications

Anaerobic Biodegradation of Polymer Composites Filled with Natural Fibers

Anaerobic Biodegradation of Polymer Composites Filled with Natural Fibers

Deformation Characteristics of Chopped Fibre Composites Subjected to Quasi-Static Tensile Loading

Preparation and properties of polyamide‐6‐based thermoplastic laminate composites by a novel in‐mold polymerization technique

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