Wood Flour/Polypropylene Composites: Influence of Maleated Polypropylene and Process and Composition Variables on Mechanical Properties

Myers, George E.; Chahyadi, I. S.; Coberly, Camden A.; Ermer, D. S.

doi:10.1080/00914039108031519

Cited by 120 publications

(60 citation statements)

References 11 publications

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“…URING THE LAST decade, extensive efforts have been made on the use of wood fibers as fillers or reinforcers for thermoplastic matrices [1][2][3][4][5][6][7][8][9][10][11]. The rationale behind these efforts is that wood fibers offer many advantages over the most commonly used inorganic materials including a lower cost on a volumetric basis, higher specific strength and modulus, flexibility during processing, etc.…”

Section: Introduction Dmentioning

confidence: 99%

“…The rationale behind these efforts is that wood fibers offer many advantages over the most commonly used inorganic materials including a lower cost on a volumetric basis, higher specific strength and modulus, flexibility during processing, etc. [1][2][3][4]6,9,10]. Despite these advantages, the strength properties of plastic-wood-fiber composites are inferior compared to neat plastics as a result of poor interfacial adhesion due to the incompatibility between hydrophilic wood fibers and hydrophobic plastics [1][2][3][4][5][6][7][8].…”

Section: Introduction Dmentioning

confidence: 99%

See 1 more Smart Citation

Effectiveness of Maleated and Acrylic Acid-Functionalized Polyolefin Coupling Agents for HDPE-Wood-Flour Composites

Matuana

2003

Journal of Thermoplastic Composite Materials

115

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The performance of fiber reinforced thermoplastic composites strongly depends on solid fiber-matrix adhesion to allow stress transfer between the phases. Fiber surface modification with coupling agents is generally needed to induce bond formation between the fiber and the polymer. This study investigated the effects of coupling agent's functional monomer (acrylic acid vs. maleic anhydride) and base resin (polyethylene (PE) vs. polypropylene (PP)) types on the tensile and flexural properties of high-density polyethylene (HDPE)-wood-flour composites. The interfacial adhesion between wood flour and HDPE matrix was examined using environmental scanning electron microscope. The experimental results indicate that the types of functional monomer and base resin are important factors determining the effectiveness of functionalized coupling agents for HDPEwood-flour composites. Maleic anhydride-functionalized polyolefins perform better than acrylic acid counterparts whereas PE-based maleated coupling agents are more effective than PP-based counterparts in improving the strength properties of HDPE-wood-flour composites.

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Section: Introduction Dmentioning

confidence: 99%

Section: Introduction Dmentioning

confidence: 99%

Effectiveness of Maleated and Acrylic Acid-Functionalized Polyolefin Coupling Agents for HDPE-Wood-Flour Composites

Matuana

2003

Journal of Thermoplastic Composite Materials

115

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“…Berger and Stark examined the effects of species on the properties of wood flour reinforced thermoplastics . It was also found that mesh size significantly affected the properties of polypropylene filled with nominal 20-and 40-mesh wood flour (Myers et al 1991). Changes on the basis of particle size were reported in a study of four sizes of oil palm wood flour used as filler at different concentrations of polypropylene (Zaini et al 1996).…”

Section: Introductionmentioning

confidence: 94%

“…Coupling agents are therefore essential to ensure suitable bond formation between the particles and the matrix. Coupling agents may physically or chemically improve the bonds (Myers et al 1991). Toughness was reported to increase upon addition of MAPE (Maleic Anhydride Polyethylene) as well (Gallagher & McDonald 2013).…”

Section: Introductionmentioning

confidence: 99%

Study on the effects of wood flour geometry on physical and mechanical properties of wood-plastic composites

Khonsari

Taghiyari

Karimi

et al. 2015

Maderas, Cienc. tecnol.

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The present study is focused on the effects of the shape and size of Fagus orientalis wood flour on physical and mechanical properties of HDPE based wood plastic composites (WPC). Variables included two mesh sizes (20 and 60), as well as five different contents of ground shavings (0, 25, 50, 75, and 100%) mixed with sawdust; totally 10 treatments. HDPT content was 40% in all formulations. Panels were compression molded and physical and mechanical tests were carried out in accordance with ASTM D2240 standard specifications. Results showed that mesh size can only significantly affect the hardness in the studied wood-plastic composites. On the other hand, increasing the proportion of the ground shavings possessing higher aspect ratio (l/d) increased both flexural strength and hardness. This increasing effect however was not observed for ground shavings beyond 50%. It was also concluded that while the addition of ground shavings up to 50% could improve the mechanical properties, higher proportions would reduce some of the properties, particularly the impact strength. In was concluded that the panel made of 50% wood flour combined with 50% ground shavings exhibited overall suitable properties for most applications.

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“…The differential scanning calorimeter (DSC) tests were performed on a DSC 2920 (Perkin Elmer, TA Instruments, USA) at a heating rate of 5 °C/min under a nitrogen atmosphere. The samples weighed about 10 mg. To determine the crystallinity, 191.3 J/g was used to pure PP enthalpy (Myers et al, 1991).…”

Section: Uvodmentioning

confidence: 99%

The Effects of Lignocellulosic Fillers on Mechanical, Morphological and Thermal Properties of Wood Polymer Composites

2017

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Učinci lignoceluloznih punila na mehanička, morfološka i toplinska svojstva drvnoplastičnih kompozita Received -prispjelo: 2. 12. 2016. Accepted -prihvaćeno: 30. 8. 2017 630*864.26 doi:10.5552/drind.2017 prove its strength. Natural fi bers can be used to reinforce rather than fi ll a plastic, which increases the strength as well as stiffness. Wood and other lignocellulosic fi bers typically have higher particle sizes than those of wood fl our. Furthermore, the aspect ratio of the fi ber can be increased. At a critical fi ber length, stress is transferred from the matrix to the fi ber, resulting in a stronger composite. Stress is effi ciently transferred only if the bond between the matrix and fi ber is good (Oswald and Menges, 1995). The aim of this study was to determine the usability of waste wood fl our and fi bers from particleboard and fi berboard in the manufacturing process of wood plastic composites. Also, some physical, mechanical and morphological properties of wood plastic composites were examined. Original scientifi c paper • Izvorni znanstveni rad

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Wood Flour/Polypropylene Composites: Influence of Maleated Polypropylene and Process and Composition Variables on Mechanical Properties

Cited by 120 publications

References 11 publications

Effectiveness of Maleated and Acrylic Acid-Functionalized Polyolefin Coupling Agents for HDPE-Wood-Flour Composites

Effectiveness of Maleated and Acrylic Acid-Functionalized Polyolefin Coupling Agents for HDPE-Wood-Flour Composites

Study on the effects of wood flour geometry on physical and mechanical properties of wood-plastic composites

The Effects of Lignocellulosic Fillers on Mechanical, Morphological and Thermal Properties of Wood Polymer Composites

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