Injection Molding of Postconsumer Wood–Plastic Composites II:                 Mechanical Properties

Gosselin, Ryan; Rodrigue, Denis; Riedl, Bernard

doi:10.1177/0892705706067486

Cited by 32 publications

(25 citation statements)

References 10 publications

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“…Gosselin et al [19] studied the mechanical properties of wood-fiber/high-density polyethylene/polypropylene/maleic-anhydride-polypropylene copolymer composite foams produced using a chemical blowing agent (azodicarbonamide). They reported that foaming decreased (or maintained) the specific tensile modulus (the ratio of the tensile modulus to the specific gravity) of the composites, which means that tensile modulus was decreased with the decrease in weight.…”

Section: Mechanical Propertymentioning

confidence: 99%

“…Recently, injection foam molding using CBAs was applied to wood-fiber/plastic composites, and the effects of different processing parameters and material parameters on the resulting cell morphology and/or physical properties of the composites were investigated [10][11][12][13][14][15][16][17][18][19]. However, to the authors' knowledge, there have been very few studies of injection foam molding of wood-fiber/plastic composites using PBA.…”

Section: Introductionmentioning

confidence: 95%

“…798 Foaming technology presents such a possibility. This technology is a family of different processing methods that can produce wood-fiber/plastic composite parts with a lower density than solid parts due to numerous micron or millimeter-sized bubbles created by a blowing agent [1][2][3][4][5][6][7][8][9][10][11][12][13][14][15][16][17][18][19]. However, it is not easy to obtain fine and uniform cell structures, which are critical to the maintenance of mechanical properties when the density is reduced.…”

Section: Introductionmentioning

confidence: 98%

See 2 more Smart Citations

Injection Molding of Wood–Fiber/Plastic Composite Foams

Yoon

Kuboki

Jung

et al. 2009

Composite Interfaces

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This paper investigates the feasibility of injection-molded wood-fiber/high-density polyethylene (HDPE) composite foams that can replace injection-molded HDPE solids in industrial applications. The study applies injection foam molding technology using a physical blowing agent to a wood-fiber/HDPE composite, and examines the effects of the processing parameters on the dimensional and mechanical properties and cell density of the composite foams. In addition, the physical properties and cost of wood-fiber/HDPE composite foams are compared with those of solid HDPE. The experimental results show that wood-fiber/HDPE composite foams that have a 20% weight reduction have superior physical properties, such as density, dimensional properties (68% decrease of shrinkage and 91% decrease of warpage) and mechanical properties (28% increase of Young's modulus). Furthermore, the cost analysis confirms that wood-fiber/HDPE composite foams are much less expensive (by 40%) than HDPE. Therefore, it is concluded that wood-fiber/HDPE composite foams are strong candidates for replacing current injection-molded HDPE products.

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Section: Mechanical Propertymentioning

confidence: 99%

Section: Introductionmentioning

confidence: 95%

Section: Introductionmentioning

confidence: 98%

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Injection Molding of Wood–Fiber/Plastic Composite Foams

Yoon

Kuboki

Jung

et al. 2009

Composite Interfaces

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“…The normalized flexural modulus can be obtained as single integral using equations (14), (15), (36), and (37)…”

Section: Mechanical Models Theorymentioning

confidence: 99%

Asymmetric microcellular composites: Mechanical properties and modulus prediction

Tissandier

González‐Núñez

Rodrigue

2015

Journal of Cellular Plastics

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In the first part of this study, asymmetric microcellular composites were prepared by injection molding to study their morphological properties as a function of temperature gradient inside the mold (0-60 C), as well as foaming agent (0-1%) and natural fiber (0-30%) contents. High-density polyethylene, flax fiber, and azodicarbonamide were used for the matrix, reinforcement, and chemical blowing agent, respectively. From the samples produced, mechanical properties (tensile, flexion, torsion, impact) are analyzed in this second part. Mechanical properties were found to be strongly influenced by density reduction and natural fiber content. It was also found that fiber addition provides higher reinforcement in flexion than torsion and tension. Also, flexural modulus and impact strength were relatively unaffected by foaming agent content for the range of parameters studied. From the experimental data obtained, a simple mechanical model based on density profile is presented to predict the elastic moduli of asymmetric structural composite foams.

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“…Kate Pitt et al [47] compared the mechanical properties of formulation of wood waste (wood flour) and thermosetting binder (urea formaldehyde) produced by conventional technique and additive manufacturing technique with and without glass fibre reinforcement. Conventional method of formulation of wood waste and thermosetting binder can be either injection molding [48] or compression molding [49] and the additive manufacturing method is extrusion based [50].Extrusion allows net shape components to be manufactured additively. The reinforcement filler in thermoplastic composite material was wood flour and thermosetting resin was used as the binder material.…”

Section: Glass Fiber Reinforced Compositesmentioning

confidence: 99%

A Review on Properties of Aerospace Materials Through Additive Manufacturing

2017

IJMTER

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Abstract-Additive Manufacturing (AM) process has been effective in producing materials that are being utilized by the aerospace industry in order to improve their performance by increasing their properties. Industry now opts for this technique over conventional methods as it has enormous advantages and applications. This Additive Manufacturing process is capable of producing complex near net shape of parts. The materials that are produced by this technique for aerospace industries are metal alloys, metal matrix composites, polymer matrix composites, ceramic matrix composites and nano-composites. Many of the composite materials are still under research and development. In this study, a literature review on the mechanical properties of the materials that are used in the aerospace industry by AM process is discussed and these properties are also compared with the materials produced by conventional methods. The purpose of this review is to highlight the importance of Additive Manufacturing technique and also understand the effect of this process on the materials tested. During this work, the evolution of materials in the aerospace sector, the basic concept of AM technique, the application of the materials, the properties obtained when processing is done, the limitations and the scope for research are given.

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Injection Molding of Postconsumer Wood–Plastic Composites II: Mechanical Properties

Cited by 32 publications

References 10 publications

Injection Molding of Wood–Fiber/Plastic Composite Foams

Injection Molding of Wood–Fiber/Plastic Composite Foams

Asymmetric microcellular composites: Mechanical properties and modulus prediction

A Review on Properties of Aerospace Materials Through Additive Manufacturing

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