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Quantification of polypropylene (PP) in wood plastic composites (WPCs) by analytical pyrolysis (Py) and differential scanning calorimetry (DSC)
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Michael Windt
,
Dietrich Meier
Published/Copyright:
January 7, 2011
Abstract
The common use of wood together with traditional chemical polymers opens new possibilities in the field of sustainable product development. Wood plastic composites (WPCs) are an ideal combination of these raw materials, which can be produced with standard plastic technology such as extrusion or injection moulding. Wood to plastic ratio in a WPC influences quality and price, thus adaptation of analytical tools for material testing and quality assurance is required. In this study, the suitability of analytical pyrolysis (Py) and differential scanning calorimetry (DSC) was investigated to quantify the amount of polypropylene (PP) in WPCs. The reliability of these methods was tested by analysing WPCs with different ratios of wood and PP. The amount of PP can be determined with DSC based on its melting point as the influence of wood is negligible in this context. The increment of typical PP markers and decrement of wood markers was observed and quantified in the pyrograms if the PP content in WPCs was elevated. Thus, the ratio of PP and wood can be reliably quantified by means of online and offline analytical pyrolysis.
Keywords: analysis of wood plastic composites (WPCs); analytical pyrolysis (Py-GC and Py-GC/MS); bioplastic; biopolymers; offline pyrolysis; online pyrolysis; wood analysis
Received: 2010-2-24
Accepted: 2010-10-15
Published Online: 2011-01-07
Published Online: 2011-01-06
Published in Print: 2011-03-01
©2011 by Walter de Gruyter Berlin New York
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Keywords for this article
analysis of wood plastic composites (WPCs);
analytical pyrolysis (Py-GC and Py-GC/MS);
bioplastic;
biopolymers;
offline pyrolysis;
online pyrolysis;
wood analysis
Articles in the same Issue
- Editorial
- Note from the Editor-in-Chief
- Original papers
- Delineating pMDI model reactions with loblolly pine via solution-state NMR spectroscopy. Part 1. Catalyzed reactions with wood models and wood polymers
- Delineating pMDI model reactions with loblolly pine via solution-state NMR spectroscopy. Part 2. Non-catalyzed reactions with the wood cell wall
- Effect of periodate on lignin for wood adhesive application
- Spherical PF resin beads prepared from phenol-liquefied Bambusa dolichoclada with suspension polymerization
- Novel paper sizing agents based on renewables. Part 4: Application properties in comparison to conventional ASA sizes
- Organosolv pretreatment of olive tree biomass for fermentable sugars
- NIR-based prediction of extractives in American white oak heartwood
- Synthesis and herbicidal activity of 5-dehydroabietyl-1,3,4-oxadiazole derivatives
- Quantification of polypropylene (PP) in wood plastic composites (WPCs) by analytical pyrolysis (Py) and differential scanning calorimetry (DSC)
- Prediction of plywood bonding quality using an artificial neural network
- Photostability and moisture uptake properties of wood veneers coated with a combination of thin sol-gel films and light stabilizers
- Thermal degradation of bending properties of structural wood and wood-based composites
- Modelling time-dependent mechanical behaviour of softwood using deformation kinetics
- Viscoelastic properties of woody hemp core
- Scale effect in the anisotropic deformation change of tracheid cells during water adsorption
- Phylogenetic analysis of major molds inhabiting woods and their discoloration characteristics. Part 1. Genus Trichoderma
- Phylogenetic analysis of major molds inhabiting woods and their discoloration characteristics. Part 2. Genus Penicillium
- Fungi associated with bamboo and their decay capabilities
- Antifungal activities of three supercritical fluid extracted cedar oils
- Short Note
- Influence of wood specimen thickness on its mechanical properties by tensile testing: solid wood versus veneer
- Meetings
- Meetings
