出版日期：2000-02-01 00:00:00

著者：董崇民; Don, Trong-ming

單位：淡江大學化學工程與材料工程學系

著錄名稱、卷期、頁數：Polymer degradation and stability 67(2), pp.223-231

摘要：Low-density polyethylene (LDPE) was melt blended in a Brabender with different amounts of poly(bispropoxyphosphazene) flame retardant, MFR. The crystallization kinetics and thermal degradation behavior of the blends were investigated. It was found that MFR was incompatible with LDPE, where MFR particles dispersed in LDPE matrix with very weak interfacial bonding. In the blends, polyethylene crystals were still in an orthorhombic form and spherulitic structure was observed. Under isothermal crystallization, the crystallization rate and crystallinity were both increased with the addition of MFR up to 20 phr, probably due to the decrease of viscosity and the increase in the number of nucleation sites. The Avrami parameter n was in the range of 2.2 to 2.7 for the blends. In thermal degradation behavior, the addition of MFR increased the maximum-rate degradation temperature (Tmax), char yield at 650°C and the limiting oxygen index (LOI) of LDPE, indicating that MFR additive was beneficial in flame retardancy. Yet, it deteriorated the tensile mechanical properties of LDPE.

關鍵字：Low-density polyethylene;Poly(bispropoxyphosphazene);Blends;Flame retardant;Crystallization kinetics;Thermal degradation behavior

語言：en

ISSN：0141-3910 @1873-2321

期刊性質：國外

審稿制度：否

國別：GBR

出版型式：電子版,紙本