Effect of cuprous oxide in combination with molybdenum trioxide on smoke suppression in rigid poly(vinyl chloride)

Document Type

Article

Publication Date

3-1-2001

Abstract

Further investigation of the synergistic effect of smoke suppression between cuprous oxide and molybdenum trioxide in rigid poly(vinyl chloride) (PVC) was carried out by using a cone calorimeter (cone) at a high incident heat flux of 50 kW·m-2. Experimental data derived from the cone calorimeter indicated that binary mixtures of Cu2O and MoO3 clearly showed the synergistic effect in reducing smoke by decreasing total smoke production (TSP), average specific extinction area (av-SEA), and smoke produciton rate (SPR). This result is in good agreement with that obtained from the NBS smoke chamber. However, the combustion process of rigid PVC could clearly be seen from the heat release rate (HRR) curve, SPR, and fire degradation obtained from the cone test, which could not be determined from the NBS smoke chamber. It was also found that the binary mixture showed the synergistic effect by increasing char residue and reducing the fire degradation of the PVC backbone at a high incident heat flux of 50 kW·m-2. All experimental data well supported the early cross-linking mechanism of the PVC backbone mentioned in the literature and were consistent with the fire degradation behavior obtained from the cone calorimeter.

Publication Source (Journal or Book title)

Journal of Vinyl and Additive Technology

First Page

37

Last Page

42

This document is currently not available here.

Share

COinS