Rheological, Mechanical and Thermal Behaviour of Wood Polymer Composites Based on Recycled Polypropylene

Ares, Ana; Bouza, Rebeca; Pardo, Santiago; Abad, M. J.; Barral, L.

doi:10.1007/s10924-010-0208-x

Cited by 72 publications

(62 citation statements)

References 29 publications

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“…However, for each curve it was possible to identify that the point at which the moduli are equal (thus tan  = 1) was in the neighborhood of 10 rad/s. [5] and [6]. The n index that was found has a similar value and a similar trend with wood content to those reported in [5].…”

Section: Resultssupporting

confidence: 85%

“…Among the various polymers that can be filled with wood fibers, polypropylene is convenient due to the mechanical properties of the resulting composite. In the literature, in fact, most of the papers are aimed at answering questions related to the mechanical properties of the final product [1][2][3][4], while comparatively less research has been done to understand rheological properties [5,6].…”

Section: Introductionmentioning

confidence: 99%

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Rheological and thermal properties of PP-based WPC

Mazzanti¹,

Mollica²,

Kissi³

2014

AIP Conference Proceedings

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Wood Plastic Composite (WPC) has attracted great interest in outdoor building products for the reduced cost and the possibility of using recycled materials. Nevertheless the material shows two problems: the large viscosity due to the presence of high concentrations of filler and the degradation of cellulose during processing The aim of this work was to investigate the rheological and thermal properties of WPC. The material used for the experiments was a commercial PP-based WPC compound, with different concentrations of natural fibers (30, 50, 70% wt.). The thermal properties were studied to check for degradation of natural fibers during the subsequent rheological tests. Analyzing the storage and loss moduli and the complex viscosity curves obtained using a parallel plate rheometer it was possible to observe some features related to the viscoelastic nature of the composite.

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Section: Resultssupporting

confidence: 85%

Section: Introductionmentioning

confidence: 99%

Rheological and thermal properties of PP-based WPC

Mazzanti¹,

Mollica²,

Kissi³

2014

AIP Conference Proceedings

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“…The possibility of using recycled materials in the development of composites is very attractive, especially because of the large quantity of wood fibre/plastic waste generated daily (Ashori & Nourbakhsh, 2009). The volume of wood flour waste generated in the wood industry is estimated to be around 16% of its total production (Ares et al, 2010).…”

Section: Introductionmentioning

confidence: 99%

Effect of organoclay platelets on the mechanical properties of wood–plastic composites formulated with virgin and recycled polypropylene

Khanjanzadeh

Tabarsa

Shakeri

et al. 2011

Wood Material Science & Engineering

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This study investigated the effects of organoclay platelet contents (0, 3 and 5 wt%) and polypropylene type (virgin and recycled) on the mechanical properties of polypropylene/wood flour composites. Composite samples were made by melt compounding and consequent injection moulding. The tensile, flexural and impact properties of resultant composites were determined. X-ray diffraction (XRD) analysis of composites with 3 and 5% nanoclay content was also conducted. The results indicated that tensile and flexural properties of the composites increased with the addition of nanoclay particles up to 3 wt% and decreased thereafter. The impact strength of the composites, however, decreased with the incorporation of nanoclay. The mechanical properties of the recycled polypropylene-based nanocomposites were statistically comparable with those based on virgin polypropylene. XRD analysis revealed that the degree of intercalation in the nanocomposites containing 3% nanoclay was higher than in those containing 5%. Based on these results, it can be concluded that recycled polypropylene could be used instead of virgin polypropylene in the production of value-added products with no significant adverse effects on the mechanical properties.

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“…62% was recovered through recycling and energy recovery processes while 38% still went to landfill [1]. Many experts have done a lot of research on the recovery, using different polymeric materials [2][3][4][5][6]. While plastics are still preferred, one major issue is the recycling of polymeric materials in polymer technology, since it is important to control whether the recovered materials have the necessary properties, required for the reuse.…”

Section: Introductionmentioning

confidence: 99%

Evaluation of Rheological Behaviour upon Recycling of an Ethylene Vinyl Acetate Copolymer by Means of Twin-Screw Extrusion Process

ERGİN

Aydın

2017

Acta Phys. Pol. A

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Recycling of many polymers has gained a spectacular importance mainly because of its environmental and economical benefits. Ethylene vinyl acetate is one of the thermoplastics used directly as a final product and indirectly as an additive within many other polymeric materials. There has been limited research work on recycling of polymers even though recycling in industry has shown a spectacular growth in the last decade. It is the aim of this study to investigate and to evaluate the rheological behaviour of an ethylene-vinyl acetate copolymer resin upon recycling. For this purpose, original ethylene vinyl acetate granules were processed five cycles by using a twinscrew extruder and their rheological analysis was performed by means of an AR-G2 rheometer (TA Instruments), with a parallel-plate geometry, under a steady state condition. It was found that the rheological measurements of copolymer ethylene vinyl acetate exhibited a shear thinning constitutive behavior, obeying Carreau-Yasuda rheological constitutive model. The changes in flow and oscillatory shear measurements under different processing conditions were also determined in detail and results are reported in the paper.

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Rheological, Mechanical and Thermal Behaviour of Wood Polymer Composites Based on Recycled Polypropylene

Cited by 72 publications

References 29 publications

Rheological and thermal properties of PP-based WPC

Rheological and thermal properties of PP-based WPC

Effect of organoclay platelets on the mechanical properties of wood–plastic composites formulated with virgin and recycled polypropylene

Evaluation of Rheological Behaviour upon Recycling of an Ethylene Vinyl Acetate Copolymer by Means of Twin-Screw Extrusion Process

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