Thermal and burning properties of wood flour-poly(vinyl chloride) composite |
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| Authors: | Yiqun Fang Qingwen Wang Xiaoyan Bai Weihong Wang Paul A. Cooper |
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| Affiliation: | 1. Key Laboratory of Bio-Based Material Science and Technology (Northeast Forestry University), Ministry of Education, Harbin, 150040, People??s Republic of China
2. Faculty of Forestry, University of Toronto, Earth Science Center, 33 Willcocks Street, Toronto, ON, M5S 3B3, Canada
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| Abstract: | 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?Cgas chromatography/mass spectrometry (Py?CGC/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?CGC/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. |
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