WEATHERING OF INTUMESCENT PLA

摘要：

　　Effect of temperature (T), relative humidity (RH) and ultraviolet light (UV) on neat and flame retarded (FR) polylactic acid (PLA) were investigated.In particular, (i) the fire performances, (ii) the molecular mass and (iii) the thermal properties after ageing were evaluated.The FR properties before and after ageing were compared using Limiting Oxygen Index (LOI) and Mass Loss Calorimetry (MLC).It was reported that deterioration of PLA, mainly driven by hydrolysis phenomenon under T/RH exposure, is enhanced by UV addition.Moreover, the decomposition of the material is accelerated in presence of FR fillers (melamine and ammonium polyphosphate).This is even more obvious when an organomodified montmorillonite is added.However, the FR properties are enhanced after ageing due to the behavior of the flame retarded materials during ageing (e.g.migration of the flame retardants, decrease of molecular mass...).

作者: Nicolas Lesaffre Séverine Bellayer Ga(e)lle Fontaine Maude Jimenez Serge Bourbigot

作者单位: R2Fire group/UMET-UMR CNRS 8207, Ecole Nationale Supérieure de Chimie de Lille (ENSCL), Avenue Dimitri Mendele(i)ev-B(a)t.C7a, CS 90108, 59652 Villeneuve dAscq, France

会议类型: 国际会议

会议名称: 4th International Symposium on Flame-Retardant Materials & Technologies(ISFRMT 2016)(第四届阻燃材料与技术国际研讨会 )

会议地点: 长春

会议语种:英文

页码: 86-87

在线出版日期: 2016-06-15（万方平台首次上网日期，不代表论文的发表时间）