Expanded Wood Fiber Polystyrene Composites: Processing–Structure–Mechanical Properties Relationships

Doroudiani, Saeed; Kortschot, Mark T.

doi:10.1177/0892705704035405

Cited by 36 publications

(25 citation statements)

References 9 publications

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“…The temperature interval for the first decomposition step therefore associated to not only to the decomposition of WF but to the decomposition of IFR too [31,32]. Decomposition of APP releases nonflammable gases such as NH 3 and H 2 O. Shumao et al [33] investigated the flame retardancy and mechanical properties of ramie-fiberreinforced poly(lactic acid) biocomposites with the addition of APP.…”

Section: Thermal Propertiesmentioning

confidence: 99%

“…An example of positive attributes of thermoplastics is the ability to be processed with injection molding and extrusion which allows the production of WPC products for various applications. The most commonly used thermoplastics in manufacturing WPCs are polyethylene (PE) [1], polypropylene (PP) [2], polystyrene (PS) [3], and polyvinyl chloride [4]. The most commonly used thermoplastics in manufacturing WPCs are polyethylene (PE) [1], polypropylene (PP) [2], polystyrene (PS) [3], and polyvinyl chloride [4].…”

Section: Introductionmentioning

confidence: 99%

“…

INTRODUCTION

Wood-plastic composites (WPCs) represent an emerging class of materials that combines the favorable performance and cost attributes of both wood and thermoplastics [1]. The most commonly used thermoplastics in manufacturing WPCs are polyethylene (PE) [1], polypropylene (PP) [2], polystyrene (PS) [3], and polyvinyl chloride [4]. Wood contributes to the composites with higher stiffness than thermoplastics and a natural "wood" look [1].

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confidence: 99%

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Multifunctional polymer composites using natural fiber reinforcements

Ishak

Taib

2015

Multifunctionality of Polymer Composites

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Section: Thermal Propertiesmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

“…

INTRODUCTION

…”

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confidence: 99%

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Multifunctional polymer composites using natural fiber reinforcements

Ishak

Taib

2015

Multifunctionality of Polymer Composites

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“…Rizvi et al 9 observed that the presence of moisture and extractives in wood particles contribute to the initiation of cell nucleation. The volatilization of moisture and extractives from vegetable fibers occuring below 175°C (which is the customary processing temperature) generates a small amount of gas, which generally migrates to the polymer-fiber interfacial region and thereby initiates the 10 reported that different cellular morphologies can be obtained depending on the type, size and concentration of the vegetable fiber used in the cellular composite. Expanded composites can undergo large compressive deformations and thus absorb considerable amounts of specific energy.…”

Section: Introductionmentioning

confidence: 99%

Comparative study between poly(ethylene-co-vinyl acetate) - EVA expanded composites filled with banana fiber and wood flour

et al. 2014

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The objective of this study is to develop expanded composites of poly(ethylene-co-vinyl acetate) (EVA) filled with two vegetable reinforcements (banana fiber or wood flour) as well as to evaluate the influence of the type, size and concentration of these reinforcements on the cell growth and their morphological, mechanical, thermal and physical properties. The results indicated that the natural fibers act as nucleating agents and affect the cells stability during the formation of the cellular structure in the expanded composites. The mechanical properties of the expanded composites are directly related to the composite expansion degree. Comparative results of the use of vegetable residues indicate that wood flour reinforcement provides more homogeneous cells, while banana fibers restrict the expandability of the composite and its density.

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“…The mixed powders were uniaxially die-pressed into compacts, followed by slowly heating to 500 °C to burn off the PVB particles and other organic binders. After densification sintering at 1200 °C, porous HA ceramics were produced with pores formerly occupied by PVB, as shown in is one of important polystyrene products [118,119]. EPS is usually white and made of expanded polystyrene beads as shown in Figure 2-15.…”

Section: Coral Replamineform Methodsmentioning

confidence: 99%

Porous alumina ceramics with bioactive coating for potential biomedical applications

Liu¹

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In this thesis, a novel vacuum infiltration technique was developed to fabricate porous alumina ceramics. The preparation and characterization of porous alumina ceramics with a bioactive glass coating was reported. The obtained porous materials were expected to find implantation applications including bone replacement and bone regeneration, because they would have the ability to induce bone ingrowth and bone bonding, and maintain sufficient mechanical strengths to support the physiological loads. The project was focused on the relationships between the processing, microstructure and properties of the porous alumina ceramics. Highly porous alumina/zirconia ceramics were successfully prepared using porous expanded polystyrene (EPS) bead templates as the pore former. A vacuum infiltration process was developed to prepare the porous bodies, in which ceramic slurries were allowed to penetrate into the pore spaces of the porous EPS template. After drying, the ceramic particle-pore former compacts were fired in air to burn out the pore formers and densify the ceramic struts. Finally, the porous structure, which was negatively duplicated from the pore structure of the porous EPS bead, was obtained. The prepared porous alumina ceramics were featured with controllable pore sizes ranging from 1.21mm to 2.63mm, high total porosities about 60.84%-65.93%, high open porosities above 48.32%, and excellent pore interconnectivity. The mechanical properties of all the porous ceramics decreased with the increase of the porosity. With the pore sizes of porous alumina ceramics increasing from 1.21mm to 2.63mm, the compressive strength decreased ATTENTION: The Singapore Copyright Act applies to the use of this document. Nanyang Technological University Library Chapter 1 General Introduction Chapter 1 General Introduction 1.1 Background Bone is the substantial unit of human skeletal system which functions as load bearing, protection of most vital internal organs and storage of minerals. Pathologies of bone have substantial impacts on the health and quality of life of the population. The revolution of replacement of bone tissues by transplants and implants has led to a remarkable increase in the quality of life for millions of patients. The surgical methods involves: autografting (using patient's own bone), allografting (using donor's bone), xenografting (using animal's bone), synthetic graft (biomaterials) and tissue engineering (biomaterials and cell). The former three methods all use the natural materials, but are limited by the scarce supply of the grafts. Besides, great concerns exist in the immune response and infection. As a result, a synthetic graft method was developed to use biomaterials with desired shapes and forms to serve as the implantable grafts. Due to the plenty of supply and excellent biocompatibility of biomaterials, the synthetic grafts are still widely used in clinical surgery up to now. From 1970s, with the development of biology, a novel method, tissue engineering, has become emerging and potential method for trea...

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Expanded Wood Fiber Polystyrene Composites: Processing–Structure–Mechanical Properties Relationships

Cited by 36 publications

References 9 publications

Multifunctional polymer composites using natural fiber reinforcements

Multifunctional polymer composites using natural fiber reinforcements

Comparative study between poly(ethylene-co-vinyl acetate) - EVA expanded composites filled with banana fiber and wood flour

Porous alumina ceramics with bioactive coating for potential biomedical applications

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