The Influences of Poplar Inner and Outer Bark Content on Mechanical Properties of Wood/Polypropylene Composites

Hosseinihashemi, Seyyed Khalil; Shamspour, Mohammad-Hadi; Safdari, V; Pourmousa, Shademan; Ayrılmış, Nadir

doi:10.4067/s0717-97072017000100012

Cited by 3 publications

(2 citation statements)

References 1 publication

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“…The flexural properties of decayed-wood powder were lower than those of normal wood powder, but the flexural properties of wood powder were better when the dosage of wood powder was 40% and 50%. Hosseinihashemi et al [ 51 ] evaluated the individual and interaction effects of poplar endothelial powder (IBF), bark powder (OBF), and wood meal (WF), and the effect of WF content on the mechanical properties of WPCs. The results showed that WF supplementation significantly increased the bending strength, bending modulus, and tensile strength ( p < 0.05) of WPC.…”

Section: Influence Of the Raw Materialsmentioning

confidence: 99%

A Review on Flexural Properties of Wood-Plastic Composites

Jian

Mohrmann

et al. 2022

Polymers

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Wood–plastic composite (WPC) is a kind of composite material that is made of plastic and wood fiber or wood powder. Because it is mothproof, is resistant to corrosion, and has plasticity, among other advantages, it has been researched and used increasingly in building materials. The flexural property of WPC is an important subject in evaluating its mechanical properties. In this paper, wood–plastic raw materials and processing technology are introduced; the internal and external factors of WPC which affect the flexural properties are analyzed; the different ways of enhancing the bending capacity, including the surface pretreatment, addition of different modifiers (compatibility agent and coupling agent) etc. are summarized; and the methods of operation and strengthening effect are analyzed. This work provides a reference for further research in related fields.

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Section: Influence Of the Raw Materialsmentioning

confidence: 99%

A Review on Flexural Properties of Wood-Plastic Composites

Jian

Mohrmann

et al. 2022

Polymers

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“…Medium-density particleboard with 15% UF resin; single-layer; thickness of 10 mm; Galam bark pieces 6 cm in length 4 Bark board without synthetic adhesive; single-layer; thickness of 6.25 mm; particles passed through 4 mesh size (+) Target density Based on SNI standard 03-2105-2006 (2006), the MoR, MoE, and TSPtPS values of the BBP manufactured in this study did not meet the minimum requirements for Type-8 (a MoR of 82 kg/cm 2 , a MoE of 20400 kg/cm 2 , and a TSPtPS of 1.5 kg/cm 2 ). Nonetheless, it can be said that the low mechanical properties of the board panel made without adhesives are due to the low strength of the bark, i.e., the fibers of the bark are shorter and weaker than wood fibers, and the proportion of its fibers is lower than wood (Geng et al 2006;Gao et al 2011;Hosseinihashemi et al 2017).…”

Section: Mechanical Propertiesmentioning

confidence: 99%

Binderless bark particleboard made from gelam (Melaleuca viridiflora Sol. ex Gaertn.) bark waste: The effect of the pressing temperature on its mechanical and physical properties

Christy

Soemarno

Sumarlan

et al. 2021

BioRes

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This study investigated the effects of the pressing temperature on the mechanical and physical properties of binderless bark particleboard made from Gelam bark waste and the improvement of those properties. In addition, the thermal insulation properties of the particleboard were determined. Four different temperatures (140 °C, 160 °C, 180 °C, and 200 °C) were used to make single-layer binderless bark particleboard with a target density of less than or equal to 0.59 g/cm3. Results revealed that the pressing temperature affected the mechanical properties (modulus of rupture, modulus of elasticity, and tensile strength perpendicular to panel surface), which increased as the temperature increased, and the physical properties (thickness swelling and water absorption), which decreased as the temperature increased. Based on the Tukey test, increasing the temperature from 180 to 200 °C did not significantly affect the mechanical or physical properties, except for the tensile strength perpendicular to panel surface. None of the mechanical properties met SNI standard 03-2105-2006 (2006); however, the 12% maximum thickness swelling requirement was met for binderless bark particleboard hot-pressed at 200 °C. Binderless bark particleboard hot-pressed at 200 °C had high water resistance, regardless of its low strength, and a thermal conductivity value of 0.14 W/m∙K.

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Polipropilen ve söğüt (Salix babylonica L.) odunu/kabuğu ile üretilen biyokompozitlerin özellikleri

HOSSEİNİHASHEMİ,

ESHGHİ,

SHİRMOHAMMADLİ

2023

Mobilya Ve Ahşap Malzeme Araştırmaları Dergisi

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The present study investigates the influence of various components of wood-polypropylene composites (WPCs), namely wood (W), inner bark (IB), outer bark (OB), and their blending, on the mechanical behavior. To achieve this objective, willow wood, inner bark, and outer bark flours were used as reinforcements at different weight percentages (17%, 27%, and 40%) in combination with polypropylene (PP) at varying weight percentages (44%, 58%, and 64%), along with a 2% compatibilizing agent. These constituents were processed in a twin-screw co-rotating extruder, with each treatment having a distinct mass proportion of reinforcement to polypropylene. Subsequently, test samples were fabricated using an injection molding machine from the obtained pellets. The mechanical properties of the resulting biocomposites were evaluated in accordance with ASTM standards. It was observed that the flexural and tensile properties of the WPCs improved with increasing inner bark content. Based on the findings of this investigation, a formulation comprising 27% wood, 27% inner bark, 44% polypropylene, and 2% compatibilizing agent (W/IB/PP/MAPP) can be recommended for construction applications requiring high mechanical strength. However, the other reinforced biocomposites exhibited notably lower notched impact strength compared to pure polypropylene.

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The Influences of Poplar Inner and Outer Bark Content on Mechanical Properties of Wood/Polypropylene Composites

Cited by 3 publications

References 1 publication

A Review on Flexural Properties of Wood-Plastic Composites

A Review on Flexural Properties of Wood-Plastic Composites

Binderless bark particleboard made from gelam (Melaleuca viridiflora Sol. ex Gaertn.) bark waste: The effect of the pressing temperature on its mechanical and physical properties

Polipropilen ve söğüt (Salix babylonica L.) odunu/kabuğu ile üretilen biyokompozitlerin özellikleri

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