Investigation of thermal stability and flammability of poly(methyl methacrylate) composites by combination of APP with ZrO2, sepiolite or MMT. (February 2016)

• Record Type: Journal Article
• Authors: Vahabi, H.; Lin, Q.; Vagner, C.; Cochez, M.; Ferriol, M.; Laheurte, P.
• Is Part Of: Polymer degradation and stability. Volume 124(2016:Feb.)
• Page Start: 60
• Page End: 67
• Publication Date: 2016-02
• Subjects: PMMA -- Flammability -- Sepiolite -- Montmorillonite -- ZrO2; Polymers -- Deterioration -- Periodicals; Stabilizing agents -- Periodicals; Polymères -- Dégradation -- Périodiques; Stabilisants -- Périodiques; 668.9
• DOI: 10.1016/j.polymdegradstab.2015.12.004
• Languages: English
• ISSNs: 0141-3910

Abstract

Abstract: The thermal degradation and flame retardancy of poly(methyl methacrylate) containing three mineral fillers, with different geometry, MMT: plate-like, sepiolite: fibrilar and zirconium oxide ZrO2 : spherical, in combination with ammonium polyphosphate (APP) were studied. The flame behavior of composites was investigated using pyrolysis-combustion flow calorimeter, cone calorimeter and LOI tests. The results revealed that the composites containing APP and sepiolite present the best fire behavior. A rheological study was performed on composites to establish a relationship between viscosity and flammability. The residues of samples after cone calorimeter test were studied using X-ray diffraction and micro-tomography in order to investigate their chemical composition and also repartition of fillers. A better repartition of sepiolite during combustion could be the origin of the best results obtained for sample containing this filler.