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Thermal and burning properties of wood flour-poly(vinyl chloride) composite
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AI
房
王
X
王
P
DOI：10.1007/s10973-011-2071-y.png)
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Abstract
En 中文
The present study deals with the effects of wood flour on thermal and burning properties of wood flour-poly(vinyl chloride) composites (WF-PVC) using thermogravimetric (TG), cone calorimetry (CONE), and pyrolysis-gas chromatography/mass spectrometry (Py-GC/MS). TG tests show that an interaction occurred between wood flour and PVC during the thermal degradation of WF-PVC. Wood flour decreased the temperature of onset of decomposition of PVC. However, the char formation could be increased by adding wood flour to PVC. CONE test indicates that wood flour had positive effects on heat release and smoke emission of PVC. Comparing with PVC, WF-PVC reduced average heat release rate and the peak HRR by about 14 and 28%, respectively; smoke production rate was also decreased. The degradation mechanism was studied by Py-GC/MS. The results show that the volatile pyrolysis products of WF-PVC are very different from PVC. The yields of HCl and aromatic compounds decreased dramatically, and the aliphatic compounds increased by the incorporation of WF.
Keywords:
Wood flour
Poly(vinyl chloride) (PVC)
Wood-plastic composite
Thermal decomposition
Combustion
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3.1
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1.8W
Citations:
3.2W
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