The use of layered double hydroxide (LDH) derivatives as flame retardants for PVC, plasticized with 100 phr diisononyl phthalate (DINP), was investigated. Cone calorimeter results, obtained at a radiant flux of 35 kW m(sup-2), revealed that adding 30 phr conventional magnesium-aluminium LDH lowered the peak heat release (pHRR) rate from 623 ±8 kW m(sup-2) to 389 ±9 kW m(sup-2) and reduced the smoke release by 37%. Partial replacement of the aluminium with iron resulted in a red pigmented additive that was more effective as a flame retardant reducing the pHRR to as little as 253 ± 5 kW m(sup-2). This additive also showed better smoke suppression (44% lower) but the best smoke suppression was achieved by replacing part of the magnesium with copper (49% lower).
Reference:
Labuschagnè, J,. Molefe, D., Focke, W.W. & Ofosu, O. 2019. Layered double hydroxide derivatives as flame retardants for flexible PVC. Macromolecular Symposia, vol 384(1), pp. 1-10
Labuschagnè, J., Molefe, D., Focke, W., & Ofosu, O. (2019). Layered double hydroxide derivatives as flame retardants for flexible PVC. http://hdl.handle.net/10204/11067
Labuschagnè, J, D Molefe, WW Focke, and Osei Ofosu "Layered double hydroxide derivatives as flame retardants for flexible PVC." (2019) http://hdl.handle.net/10204/11067
Labuschagnè J, Molefe D, Focke W, Ofosu O. Layered double hydroxide derivatives as flame retardants for flexible PVC. 2019; http://hdl.handle.net/10204/11067.
Copyright: 2019 Wiley Online Library. Due to copyright restrictions, the attached PDF file only contains the abstract version of the full-text item. For access to the full-text item, please consult the publisher's website. The definitive version of the work is published in Macromolecular Symposia, vol 384(1), pp. 1-10
