Mechanical properties of an extruded wood plastic composite

Hugot, F.; Cazaurang, Gilles

doi:10.1051/meca/2010010

Cited by 8 publications

(9 citation statements)

References 7 publications

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“…The processability range is thus only about 20°C wide (180–200°C), and this makes processing particularly difficult at high fiber volume fractions. Nevertheless, the mechanical properties of PP‐based WPC are generally higher than HDPE‐based ones, as can be seen by comparing the main results of papers dealing with HDPE‐based WPC with those dealing with PP‐based WPC . In particular, Englund et al make a comparison between the mechanical properties of various polymer matrix WPCs and find that among PP, PVC, and HDPE, PP‐based ones offer a good compromise between adequate strength and stiffness and good ductility.…”

Section: Introductionmentioning

confidence: 99%

Rheological and mechanical characterization of polypropylene-based wood plastic composites

2015

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The aim of this article is to investigate the influence of filler content and temperature on the rheological, mechanical, and thermal properties of wood flour polypropylene composites (WPCs). Testing WPCs at high temperatures and percentages of filler is extremely challenging because of reduced linear viscoelastic region, high viscosity, and degradation. In this work, a complete characterization of WPCs with different filler percentages (0–70 wt%) has been made. Rheological tests are performed at 170°C for the WPCs and in the 170–200°C range for neat polypropylene. A single master curve is obtained using two shift factors that can be described by a modified Eilers model and a Williams‐Landel‐Ferry equation. This master curve, fitted with a Carreau‐Yasuda model, can be very useful for predicting the viscosity of WPCs at temperatures that are typically used during processing and for any percentage of filler. POLYM. COMPOS., 37:3460–3473, 2016. © 2015 Society of Plastics Engineers

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Section: Introductionmentioning

confidence: 99%

Rheological and mechanical characterization of polypropylene-based wood plastic composites

2015

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“…6 can be seen impact of investigating variables (plastic/wood ratio, particle size and type of polymeric matrix) during WPC´s production and thus on final mechanical properties. As we expected recycled HDPE based WPC´s have lower values from mechanical characteristic point of view [11,13]. Different results were obtained from a elongation point of view.…”

Section: Resultsmentioning

confidence: 67%

“…Their impact can be seen through the quality indicators; especially mentioned parameters significantly influence the mechanical properties of WPCs (ultimate strength, maximal force, elongation, impact strength, modulus of elasticity, water absorption, etc.) [11][12][13].The best way is to choose such variables which have during the production process continuous characteristics and where the impact on outputs are expected. In our case, determination of the mutual interaction between mechanical properties, type of the plastic matrix used in WPCs, wood/plastic concentration ratio and particle size of wood sawdust used in WPCs were chosen.…”

Section: Methodsmentioning

confidence: 99%

Research of plastic and wood raw wastes recovery

Kri¹

2017

Adv. Mater. Lett.

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The main aim of this paper is to present the research findings regarding the recovery possibilities of plastic and wood raw wastes. One of the recovery possibilities for mentioned raw materials is production of waste raw materials based woodplastic composites (WPC). Lonely production process is influenced by technological and raw material parameters (type of raw material and particle size) and thus the final quality and mechanical properties of WPCs have to be determine. This paper also presents the results of realized experimental research which dealt with the determination of relationship between material parameters and mechanical properties during production of WPCs. The main goal of presented paper is to determine the mutual interaction between mechanical properties, type of the plastic matrix used in WPC, wood/plastic concentration ratio and particle size of wood sawdust used in WPC. In this paper the authors also comparing mechanical properties of WPCs based on recycled and original plastics. As a plastic matrix 100 % original HDPE and recycled HDPE originating from lids of PET bottles was used. Obtained research findings can be very helpful at WPCs production and shown the possibility of using also waste raw materials for WPC products, and thus increase the environmental responsibility with the environment protection.

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“…Also the additives such as colorants, coupling agents, UV stabilizers, blowing agents or foaming agents are included [7]. The usual composition of BPCs based virgin material is 60 -65% of high-density polyethylene (HDPE) [4,8], 30 % of biomass particles without defined granulometry, but the particle sizes up to 2 mm and the additives according to the final application, which helps tailor the end product to the target area of application [3].…”

Section: Introductionmentioning

confidence: 99%

Effect of wood particle size on the water absorption of wood-plastic composites

Križan¹,

Beniak²,

Matúš³

2020

Global J. Eng. Tech. Adv.

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The main aim of this paper is to present the research findings which come out from the experimental determination of the influence of input raw material properties and composition on the water absorption of wood-plastic composites. During the WPCs production, important raw material parameters such as wood sawdust particle size, wood/plastic concentration ratio or type of plastic matrix can be recognized. In this research study, the aim was to produce WPCs of an acceptable and competitive level of quality which is determined from the final mechanical properties of WPCs. Particle size of wood sawdust used for production of WPC has significant influence on mechanical properties of composites and also on other important properties (water absorption, hardness, frost resistance, etc.). Using a variety combination of influencing variables the final quality of composites and also the operating parameters of the injection molding press can be improved. Their effect can be seen from the quality indicators and from the operating parameters of the injection press which has a direct impact on the production costs. The paper deals with the determination of the impact and the relationship between the input wood sawdust particles sizes, wood/plastic concentration ratio and water absorption of composites. By side intention of authors is to determine the possibilities of waste raw materials usage. The experimental research findings were obtained using a semi-operational injection molding press where the injection is provided by a working screw. As the input raw material, spruce sawdust, HDPE plastic matrix and recycled HDPE, represented by lids from PET bottles, was used. The effect of the input wood sawdust particle size on water absorption was determined according to a combination and default levels of wood/HDPE concentration ratio, using recycled HDPE instead of virgin HDPE and particle size of wood sawdust.

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Mechanical properties of an extruded wood plastic composite

Cited by 8 publications

References 7 publications

Rheological and mechanical characterization of polypropylene-based wood plastic composites

Rheological and mechanical characterization of polypropylene-based wood plastic composites

Research of plastic and wood raw wastes recovery

Effect of wood particle size on the water absorption of wood-plastic composites

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