TY  - JOUR
PY  - 2008//
TI  - Synergistic effect of lanthanum oxide on intumescent flame-retardant polypropylene-based formulations
JO  - Journal of fire sciences
A1  - Wu, Jing
A1  - Hu, Yuan
A1  - Song, Lei
A1  - Kang, Wenjie
SP  - 399
EP  - 414
VL  - 26
IS  - 5
N2  - Synergistic effects of lanthanum oxide (La2O3) on the flammability and thermal properties of intumescent flame-retardant polypropylene (IFR-PP) composites are investigated in the study. The limiting oxygen index (LOI), UL-94 test, and cone calorimeter results show that the flame retardancy of IFR-PP is improved significantly by the introduction of La2O 3. The results of thermogravimetric analysis (TGA) indicate that thermal stability of IFR-PP is also enhanced. SEM pictures reveal that La2O 3 addition improve the formation of a homogenous and compact intumescent char layer on the surface of the composites. The possible mechanism of the synergistic effects between La2O3 and IFR is proposed in the paper.<p /> <p>Language: en</p> 
LA  - en
SN  - 0734-9041
UR  - http://dx.doi.org/10.1177/0734904108091990
ID  - ref1
ER  -