B. A. Wang, K. Q. Zhou, S. H. Jiang, Y. Hu and Z. Gui (2014) The application of transition metal molybdates (AMoO(4), A = Co, Ni, Cu) as additives in acrylonitrile-butadiene-styrene with improved flame retardant and smoke suppression properties. Journal/Polymers for Advanced Technologies 25 1419-1425. [In English]
Web link: http://dx.doi.org/10.1002/pat.3380
Keywords: ,transition metal molybdates, homogeneously dispersed, accelerate, smoke, suppression, POLY(VINYL CHLORIDE), THERMAL-DECOMPOSITION, HYDROTHERMAL PROCESS, FIRE-RETARDANT, CUPROUS-OXIDE, THIN-FILM, ABS, COMBINATION, POLYMERS

Abstract: In this paper, three different kinds of typical transition metal molybdates (AMoO(4), A = Co, Ni, Cu) were synthesized via a hydrothermal method. X-ray diffraction and scanning electron microscopy (SEM) were used to characterize their structures. Then, the synthesized molybdates were incorporated into acrylonitrile-butadiene-styrene (ABS) matrix via a masterbatch-based melt blending method. SEM images showed that transition metal molybdates (AMoO(4), A = Co, Ni, Cu) are homogeneously dispersed in the ABS matrix. Thermogravimetric analysis (TGA) results indicated that the introduction of these transition metal molybdates (AMoO(4), A = Co, Ni, Cu) could accelerate the degradation of ABS, especially for the CuMoO4. The initial thermal degradation temperatures are decreased by 9-12 degrees C for ABS/CoMoO4 and ABS/NiMoO4 composites. But for the ABS/CuMoO4 composite, it is decreased by 45 degrees C. Meanwhile, the peak of heat release rate is decreased by 10%-13% for ABS/CoMoO4 and ABS/NiMoO4 composites, and it is decreased by 26% for ABS/CuMoO4 composite. Moreover, TGA/infrared spectrometry was used to investigate the smoke suppression effect of CuMoO4 in ABS indirectly, it showed that the addition of CuMoO4 inhibits the release of hydrocarbons, aromatic compounds, and CO and promotes the generation of CO2. Copyright (c) 2014 John Wiley &, Sons, Ltd.