Characterization of highly filled wood flour-PVC composites: Morphological and thermal studies

Composites with polyvinyl chloride (PVC) as major matrix constituent, ethylene vinyl acetate (EVA) as polymeric plasticizer and wood flour (WF) and fly ash (FA) as filler were extruded. Morphology of the samples was studied using scanning electron microscopy (SEM). Morphological study indicated good...

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Veröffentlicht in:Journal of applied polymer science 2009-10, Vol.114 (1), p.90-96
Hauptverfasser: Marathe, D.S, Joshi, P.S
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creator Marathe, D.S
Joshi, P.S
description Composites with polyvinyl chloride (PVC) as major matrix constituent, ethylene vinyl acetate (EVA) as polymeric plasticizer and wood flour (WF) and fly ash (FA) as filler were extruded. Morphology of the samples was studied using scanning electron microscopy (SEM). Morphological study indicated good dispersion of the constituents. Infrared spectroscopy (IR) indicates interaction between EVA and PVC and also between the polymeric matrix and WF. The effect of various constituents on glass transition temperature (Tg) was evaluated using differential scanning calorimetry. Addition of EVA decreased the Tg, whereas Tg was increased due to addition of WF and FA. Study indicated that reduction in Tg on addition of EVA was compensated by increase in Tg due to addition of WF. The contribution of FA to change in Tg was not significant. Resulting composites have Tg close to that of PVC.
doi_str_mv 10.1002/app.30452
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Morphology of the samples was studied using scanning electron microscopy (SEM). Morphological study indicated good dispersion of the constituents. Infrared spectroscopy (IR) indicates interaction between EVA and PVC and also between the polymeric matrix and WF. The effect of various constituents on glass transition temperature (Tg) was evaluated using differential scanning calorimetry. Addition of EVA decreased the Tg, whereas Tg was increased due to addition of WF and FA. Study indicated that reduction in Tg on addition of EVA was compensated by increase in Tg due to addition of WF. The contribution of FA to change in Tg was not significant. 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Appl. Polym. Sci</addtitle><description>Composites with polyvinyl chloride (PVC) as major matrix constituent, ethylene vinyl acetate (EVA) as polymeric plasticizer and wood flour (WF) and fly ash (FA) as filler were extruded. Morphology of the samples was studied using scanning electron microscopy (SEM). Morphological study indicated good dispersion of the constituents. Infrared spectroscopy (IR) indicates interaction between EVA and PVC and also between the polymeric matrix and WF. The effect of various constituents on glass transition temperature (Tg) was evaluated using differential scanning calorimetry. Addition of EVA decreased the Tg, whereas Tg was increased due to addition of WF and FA. Study indicated that reduction in Tg on addition of EVA was compensated by increase in Tg due to addition of WF. The contribution of FA to change in Tg was not significant. 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1097-4628
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subjects Applied sciences
Composites
Constituents
differential scanning calorimetry
Dispersions
ethylene vinyl acetate
Ethylene vinyl acetates
Exact sciences and technology
Flour
fly ash
Forms of application and semi-finished materials
glass transition temperature
infrared spectroscopy
Plasticizers
Polymer industry, paints, wood
polyvinyl chloride
Polyvinyl chlorides
Reproduction
Scanning electron microscopy
Technology of polymers
Wood
wood-plastic composites
title Characterization of highly filled wood flour-PVC composites: Morphological and thermal studies
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