Flame retardancy mechanisms of aluminium phosphinate in combination with melamine cyanurate in glass-fibre-reinforced poly(1,4-butylene terephthalate)
Flame retardancy mechanisms of aluminium phosphinate in combination with melamine cyanurate in glass-fibre-reinforced poly(1,4-butylene terephthalate)
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DOI：
10.1002/mame.200700330
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发表时间：
2008-03-12
影响因子：
3.9
通讯作者：
Schartel, Bernhard
中科院分区：
文献类型：
--
作者：
Braun, Ulrike;Schartel, Bernhard
使用 TGA 分析了玻璃纤维增强聚对苯二甲酸丁二醇酯 (PBT/GF) 中二乙基次膦酸铝 (AlPi) 及其与三聚氰胺氰尿酸酯 (MC) 的组合的阻燃机理，包括逸出气体分析 (TGA-FTIR)、使用各种辐照的锥形量热仪测量、使用各种辐照的测量、可燃性测试（有限氧指数、LOI、UL 94）和残留物化学分析 (FTIR、扫描电镜/能谱）。 AM的分解主要是通过形成二乙基次膦酸和磷酸铝，对PBT的分解影响很小。 AlPi主要通过抑制火焰发挥作用。无卤 V-0 PBT/GF 材料的 LOI 为 44%。额外的炭化影响了可燃性。 MC 的分解独立于聚合物，并表现出一定的燃料稀释效应。
The flame retardancy mechanisms of aluminium diethylphosphinate (AlPi) and its combination with melamine cyanurate (MC) in glass-fibre-reinforced poly(butylene terephthalate) (PBT/GF) were analysed using TGA including evolved gas analysis (TGA-FTIR), cone calorimeter measurements using various irradiations, measurements using various irradiations, flammability tests (limited oxygen index, LOI, UL 94) and chemical analyses of residues (FTIR, SEM/EDX). AM decomposed mainly through the formation of diethylphosphinic acid and aluminium phosphate and influenced the decomposition of the PBT only slightly. AlPi acted mainly through flame inhibition. A halogen-free V-0 PBT/GF material was achieved with a LOI of 44%. Additional charring influenced the flammability. MC decomposed independently of the polymer and showed some fuel dilution effects.