Effect of styrene maleic anhydride on physical and mechanical properties of recycled polystyrene wood flour composites

In this work, the influence of three types of styrene maleic anhydride (SMA) oligomers on the adhesion of polystyrene wood plastic composites (WPC) was investigated. The composites were processed on a twin-screw co-rotating extruder below 200°C using 20 wt% of wood flour. The styrene maleic anhydrid...

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Main Author: Matheus Poletto
Format: Article
Language:English
Published: Universidad del Bío-Bío 2016-10-01
Series:Maderas: Ciencia y Tecnología
Subjects:
Online Access:https://revistas.ubiobio.cl/index.php/MCT/article/view/2551
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author Matheus Poletto
author_facet Matheus Poletto
author_sort Matheus Poletto
collection DOAJ
description In this work, the influence of three types of styrene maleic anhydride (SMA) oligomers on the adhesion of polystyrene wood plastic composites (WPC) was investigated. The composites were processed on a twin-screw co-rotating extruder below 200°C using 20 wt% of wood flour. The styrene maleic anhydride with different content of maleic anhydride groups, 30%, 25% and 20% (w/w) and levels of 1, 2 and 4% of coupling agents (styrene maleic anhydride 2000, styrene maleic anhydride 3000 and styrene maleic anhydride EF40) in the composite formulations were tested. Mechanical, physical and morphologic properties were evaluated. The styrene maleic anhydride improves the compatibility of hydrophilic wood flour with hydrophobic polystyrene matrix. It has been observed that the addition of styrene maleic anhydride increased the wood plastic composites mechanical properties with the incorporation of 2% wt of styrene maleic anhydride 2000. The mechanical properties showed to be dependent on content of maleic anhydride in the coupling agent. Treated and non-treated wood plastic composites showed similar density values, but the void content was reduced for treated composites. Scanning electron microscopy revel the better adhesion between polymer and matrix when coupling agent were used.
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spelling doaj.art-3601264c703a4b44b4a86050a8b935da2024-01-12T19:03:39ZengUniversidad del Bío-BíoMaderas: Ciencia y Tecnología0717-36440718-221X2016-10-011841050Effect of styrene maleic anhydride on physical and mechanical properties of recycled polystyrene wood flour compositesMatheus PolettoIn this work, the influence of three types of styrene maleic anhydride (SMA) oligomers on the adhesion of polystyrene wood plastic composites (WPC) was investigated. The composites were processed on a twin-screw co-rotating extruder below 200°C using 20 wt% of wood flour. The styrene maleic anhydride with different content of maleic anhydride groups, 30%, 25% and 20% (w/w) and levels of 1, 2 and 4% of coupling agents (styrene maleic anhydride 2000, styrene maleic anhydride 3000 and styrene maleic anhydride EF40) in the composite formulations were tested. Mechanical, physical and morphologic properties were evaluated. The styrene maleic anhydride improves the compatibility of hydrophilic wood flour with hydrophobic polystyrene matrix. It has been observed that the addition of styrene maleic anhydride increased the wood plastic composites mechanical properties with the incorporation of 2% wt of styrene maleic anhydride 2000. The mechanical properties showed to be dependent on content of maleic anhydride in the coupling agent. Treated and non-treated wood plastic composites showed similar density values, but the void content was reduced for treated composites. Scanning electron microscopy revel the better adhesion between polymer and matrix when coupling agent were used.https://revistas.ubiobio.cl/index.php/MCT/article/view/2551Coupling agentinjection mouldingmechanical propertiesPinus elliottiipolystyrenewood plastic composites.
spellingShingle Matheus Poletto
Effect of styrene maleic anhydride on physical and mechanical properties of recycled polystyrene wood flour composites
Maderas: Ciencia y Tecnología
Coupling agent
injection moulding
mechanical properties
Pinus elliottii
polystyrene
wood plastic composites.
title Effect of styrene maleic anhydride on physical and mechanical properties of recycled polystyrene wood flour composites
title_full Effect of styrene maleic anhydride on physical and mechanical properties of recycled polystyrene wood flour composites
title_fullStr Effect of styrene maleic anhydride on physical and mechanical properties of recycled polystyrene wood flour composites
title_full_unstemmed Effect of styrene maleic anhydride on physical and mechanical properties of recycled polystyrene wood flour composites
title_short Effect of styrene maleic anhydride on physical and mechanical properties of recycled polystyrene wood flour composites
title_sort effect of styrene maleic anhydride on physical and mechanical properties of recycled polystyrene wood flour composites
topic Coupling agent
injection moulding
mechanical properties
Pinus elliottii
polystyrene
wood plastic composites.
url https://revistas.ubiobio.cl/index.php/MCT/article/view/2551
work_keys_str_mv AT matheuspoletto effectofstyrenemaleicanhydrideonphysicalandmechanicalpropertiesofrecycledpolystyrenewoodflourcomposites