Synergistic Effect of Lanthanum Oxide on Intumescent Flame-Retardant Polypropylene-based Formulations
Source abstract
Abstract
Synergistic effects of lanthanum oxide (La 2 O 3 ) 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 La 2 O 3 . The results of thermogravimetric analysis (TGA) indicate that thermal stability of IFR-PP is also enhanced. SEM pictures reveal that La 2 O 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 La 2 O 3 and IFR is proposed in the paper.
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Research context
OpenAlex topics: Flame retardant materials and properties · Polymer Nanocomposites and Properties · Silicone and Siloxane Chemistry
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
State Key Laboratory of Fire Science, University of Science and Technology of China, Hefei, Anhui 230026, PR China
State Key Laboratory of Fire Science, University of Science and Technology of China, Hefei, Anhui 230026, PR China,
References (25)
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