writer：Cai YZ, Guo ZH*, Fang ZP, Cao ZH
keywords：lanthanum phenylphosphonate; glass-?ber reinforced poly(ethylene terephthalate) (PET/GF); flame retardant; microencapsulated red phosphorus
source：期刊
specific source：Applied Clay Science, 2013.4, 77-78: 10-17
Issue time：2013年

Effects of layered metal phosphonate, lanthanum phenylphosphonate (LaPP) on the thermal stability, ?ame retardancy and mechanical properties of glass-?ber reinforced poly(ethylene terephthalate) (PET/GF)/microencapsulated red phosphorus (MRP) systems were investigated. The results of transmission electron microscopy (TEM) measurements indicated that LaPP particles were homogenously dispersed in PET matrix. Thermogravimetric (TG) analysis showed that incorporating LaPP into PET/GF-MRP enhanced the thermal stability and increased the char residue relative to the sample without LaPP. The presence of LaPP could enhance limited oxygen index (LOI) and pass the UL 94 V-0 rating test. The structures of char residues observed by scanning electron microscopy (SEM) demonstrated that LaPP could promote to form the homogenous and compact char layer. What is more, the presence of LaPP improved the tensile strength and storage moduli of PET/GF-MRP composites.